diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1995-10-18 08:53:40 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1995-10-18 08:53:40 +0000 |
| commit | d6583bb2a13f329cf0332ef2570eb8bb8fc0e39c (patch) | |
| tree | ece253b876159b39c620e62b6c9b1174642e070e /lib/libm/arch | |
initial import of NetBSD tree
Diffstat (limited to 'lib/libm/arch')
75 files changed, 3860 insertions, 0 deletions
diff --git a/lib/libm/arch/i387/e_acos.S b/lib/libm/arch/i387/e_acos.S new file mode 100644 index 00000000000..6ec77853631 --- /dev/null +++ b/lib/libm/arch/i387/e_acos.S @@ -0,0 +1,20 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_acos.S,v 1.4 1995/05/08 23:44:37 jtc Exp $") + +/* acos = atan (sqrt(1 - x^2) / x) */ +ENTRY(__ieee754_acos) + fldl 4(%esp) /* x */ + fst %st(1) + fmul %st(0) /* x^2 */ + fld1 + fsubp /* 1 - x^2 */ + fsqrt /* sqrt (1 - x^2) */ + fxch %st(1) + fpatan + ret diff --git a/lib/libm/arch/i387/e_asin.S b/lib/libm/arch/i387/e_asin.S new file mode 100644 index 00000000000..dfcd7bce95c --- /dev/null +++ b/lib/libm/arch/i387/e_asin.S @@ -0,0 +1,19 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_asin.S,v 1.4 1995/05/08 23:45:40 jtc Exp $") + +/* asin = atan (x / sqrt(1 - x^2)) */ +ENTRY(__ieee754_asin) + fldl 4(%esp) /* x */ + fst %st(1) + fmul %st(0) /* x^2 */ + fld1 + fsubp /* 1 - x^2 */ + fsqrt /* sqrt (1 - x^2) */ + fpatan + ret diff --git a/lib/libm/arch/i387/e_atan2.S b/lib/libm/arch/i387/e_atan2.S new file mode 100644 index 00000000000..da2e11925c6 --- /dev/null +++ b/lib/libm/arch/i387/e_atan2.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_atan2.S,v 1.4 1995/05/08 23:46:28 jtc Exp $") + +ENTRY(__ieee754_atan2) + fldl 4(%esp) + fldl 12(%esp) + fpatan + ret diff --git a/lib/libm/arch/i387/e_atan2f.S b/lib/libm/arch/i387/e_atan2f.S new file mode 100644 index 00000000000..21fc0d9a574 --- /dev/null +++ b/lib/libm/arch/i387/e_atan2f.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_atan2f.S,v 1.1 1995/05/08 23:35:10 jtc Exp $") + +ENTRY(__ieee754_atan2f) + flds 4(%esp) + flds 8(%esp) + fpatan + ret diff --git a/lib/libm/arch/i387/e_exp.S b/lib/libm/arch/i387/e_exp.S new file mode 100644 index 00000000000..8c41ce09dd5 --- /dev/null +++ b/lib/libm/arch/i387/e_exp.S @@ -0,0 +1,23 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_exp.S,v 1.4 1995/05/08 23:47:04 jtc Exp $") + +/* e^x = 2^(x * log2(e)) */ +ENTRY(__ieee754_exp) + fldl 4(%esp) + fldl2e + fmulp /* x * log2(e) */ + fstl %st(1) + frndint /* int(x * log2(e)) */ + fstl %st(2) + fsubrp /* fract(x * log2(e)) */ + f2xm1 /* 2^(fract(x * log2(e))) - 1 */ + fld1 + faddp /* 2^(fract(x * log2(e))) */ + fscale /* e^x */ + ret diff --git a/lib/libm/arch/i387/e_fmod.S b/lib/libm/arch/i387/e_fmod.S new file mode 100644 index 00000000000..c02df44e18b --- /dev/null +++ b/lib/libm/arch/i387/e_fmod.S @@ -0,0 +1,18 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_fmod.S,v 1.4 1995/05/08 23:47:56 jtc Exp $") + +ENTRY(__ieee754_fmod) + fldl 12(%esp) + fldl 4(%esp) +1: fprem + fstsw %ax + sahf + jp 1b + fstpl %st(1) + ret diff --git a/lib/libm/arch/i387/e_log.S b/lib/libm/arch/i387/e_log.S new file mode 100644 index 00000000000..98d569ea43a --- /dev/null +++ b/lib/libm/arch/i387/e_log.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_log.S,v 1.4 1995/05/08 23:48:39 jtc Exp $") + +ENTRY(__ieee754_log) + fldln2 + fldl 4(%esp) + fyl2x + ret diff --git a/lib/libm/arch/i387/e_log10.S b/lib/libm/arch/i387/e_log10.S new file mode 100644 index 00000000000..612344be56a --- /dev/null +++ b/lib/libm/arch/i387/e_log10.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_log10.S,v 1.4 1995/05/08 23:49:24 jtc Exp $") + +ENTRY(__ieee754_log10) + fldlg2 + fldl 4(%esp) + fyl2x + ret diff --git a/lib/libm/arch/i387/e_remainder.S b/lib/libm/arch/i387/e_remainder.S new file mode 100644 index 00000000000..d14f2e82bd6 --- /dev/null +++ b/lib/libm/arch/i387/e_remainder.S @@ -0,0 +1,18 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_remainder.S,v 1.4 1995/05/08 23:49:37 jtc Exp $") + +ENTRY(__ieee754_remainder) + fldl 12(%esp) + fldl 4(%esp) +1: fprem1 + fstsw %ax + sahf + jp 1b + fstpl %st(1) + ret diff --git a/lib/libm/arch/i387/e_remainderf.S b/lib/libm/arch/i387/e_remainderf.S new file mode 100644 index 00000000000..ed578ea542b --- /dev/null +++ b/lib/libm/arch/i387/e_remainderf.S @@ -0,0 +1,18 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_remainderf.S,v 1.2 1995/05/08 23:49:47 jtc Exp $") + +ENTRY(__ieee754_remainderf) + flds 8(%esp) + flds 4(%esp) +1: fprem1 + fstsw %ax + sahf + jp 1b + fstpl %st(1) + ret diff --git a/lib/libm/arch/i387/e_scalb.S b/lib/libm/arch/i387/e_scalb.S new file mode 100644 index 00000000000..7d95f8e3b30 --- /dev/null +++ b/lib/libm/arch/i387/e_scalb.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_scalb.S,v 1.4 1995/05/08 23:49:52 jtc Exp $") + +ENTRY(__ieee754_scalb) + fldl 12(%esp) + fldl 4(%esp) + fscale + ret diff --git a/lib/libm/arch/i387/e_sqrt.S b/lib/libm/arch/i387/e_sqrt.S new file mode 100644 index 00000000000..34fe9b71362 --- /dev/null +++ b/lib/libm/arch/i387/e_sqrt.S @@ -0,0 +1,13 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_sqrt.S,v 1.4 1995/05/08 23:49:57 jtc Exp $") + +ENTRY(__ieee754_sqrt) + fldl 4(%esp) + fsqrt + ret diff --git a/lib/libm/arch/i387/e_sqrtf.S b/lib/libm/arch/i387/e_sqrtf.S new file mode 100644 index 00000000000..d20c4c1254a --- /dev/null +++ b/lib/libm/arch/i387/e_sqrtf.S @@ -0,0 +1,13 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_sqrtf.S,v 1.2 1995/05/08 23:50:14 jtc Exp $") + +ENTRY(__ieee754_sqrtf) + flds 4(%esp) + fsqrt + ret diff --git a/lib/libm/arch/i387/s_atan.S b/lib/libm/arch/i387/s_atan.S new file mode 100644 index 00000000000..9d199743c59 --- /dev/null +++ b/lib/libm/arch/i387/s_atan.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_atan.S,v 1.4 1995/05/08 23:50:41 jtc Exp $") + +ENTRY(atan) + fldl 4(%esp) + fld1 + fpatan + ret diff --git a/lib/libm/arch/i387/s_atanf.S b/lib/libm/arch/i387/s_atanf.S new file mode 100644 index 00000000000..fb1f9b0dbb3 --- /dev/null +++ b/lib/libm/arch/i387/s_atanf.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_atanf.S,v 1.3 1995/05/08 23:51:33 jtc Exp $") + +ENTRY(atanf) + flds 4(%esp) + fld1 + fpatan + ret diff --git a/lib/libm/arch/i387/s_ceil.S b/lib/libm/arch/i387/s_ceil.S new file mode 100644 index 00000000000..0802c0ecdf9 --- /dev/null +++ b/lib/libm/arch/i387/s_ceil.S @@ -0,0 +1,28 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_ceil.S,v 1.4 1995/05/08 23:52:13 jtc Exp $") + +ENTRY(ceil) + pushl %ebp + movl %esp,%ebp + subl $8,%esp + + fstcw -12(%ebp) /* store fpu control word */ + movw -12(%ebp),%dx + orw $0x0800,%dx /* round towards +oo */ + andw $0xfbff,%dx + movw %dx,-16(%ebp) + fldcw -16(%ebp) /* load modfied control word */ + + fldl 8(%ebp); /* round */ + frndint + + fldcw -12(%ebp) /* restore original control word */ + + leave + ret diff --git a/lib/libm/arch/i387/s_ceilf.S b/lib/libm/arch/i387/s_ceilf.S new file mode 100644 index 00000000000..253f4fc6933 --- /dev/null +++ b/lib/libm/arch/i387/s_ceilf.S @@ -0,0 +1,28 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_ceilf.S,v 1.3 1995/05/08 23:52:44 jtc Exp $") + +ENTRY(ceilf) + pushl %ebp + movl %esp,%ebp + subl $8,%esp + + fstcw -12(%ebp) /* store fpu control word */ + movw -12(%ebp),%dx + orw $0x0800,%dx /* round towards +oo */ + andw $0xfbff,%dx + movw %dx,-16(%ebp) + fldcw -16(%ebp) /* load modfied control word */ + + flds 8(%ebp); /* round */ + frndint + + fldcw -12(%ebp) /* restore original control word */ + + leave + ret diff --git a/lib/libm/arch/i387/s_copysign.S b/lib/libm/arch/i387/s_copysign.S new file mode 100644 index 00000000000..a57cb96b025 --- /dev/null +++ b/lib/libm/arch/i387/s_copysign.S @@ -0,0 +1,18 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_copysign.S,v 1.4 1995/05/08 23:53:02 jtc Exp $") + +ENTRY(copysign) + movl 16(%esp),%edx + andl $0x80000000,%edx + movl 8(%esp),%eax + andl $0x7fffffff,%eax + orl %edx,%eax + movl %eax,8(%esp) + fldl 4(%esp) + ret diff --git a/lib/libm/arch/i387/s_copysignf.S b/lib/libm/arch/i387/s_copysignf.S new file mode 100644 index 00000000000..b3e609f7575 --- /dev/null +++ b/lib/libm/arch/i387/s_copysignf.S @@ -0,0 +1,18 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_copysignf.S,v 1.3 1995/05/08 23:53:25 jtc Exp $") + +ENTRY(copysignf) + movl 8(%esp),%edx + andl $0x80000000,%edx + movl 4(%esp),%eax + andl $0x7fffffff,%eax + orl %edx,%eax + movl %eax,4(%esp) + flds 4(%esp) + ret diff --git a/lib/libm/arch/i387/s_cos.S b/lib/libm/arch/i387/s_cos.S new file mode 100644 index 00000000000..6ee81b1d332 --- /dev/null +++ b/lib/libm/arch/i387/s_cos.S @@ -0,0 +1,26 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_cos.S,v 1.5 1995/05/08 23:54:00 jtc Exp $") + +ENTRY(cos) + fldl 4(%esp) + fcos + fnstsw %ax + andw $0x400,%ax + jnz 1f + ret +1: fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fnstsw %ax + andw $0x400,%ax + jnz 2b + fstp %st(1) + fcos + ret diff --git a/lib/libm/arch/i387/s_cosf.S b/lib/libm/arch/i387/s_cosf.S new file mode 100644 index 00000000000..adf8e87abbc --- /dev/null +++ b/lib/libm/arch/i387/s_cosf.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_cosf.S,v 1.3 1995/05/08 23:55:16 jtc Exp $") + +/* A float's domain isn't large enough to require argument reduction. */ +ENTRY(cosf) + flds 4(%esp) + fcos + ret diff --git a/lib/libm/arch/i387/s_finite.S b/lib/libm/arch/i387/s_finite.S new file mode 100644 index 00000000000..9887e88c9c2 --- /dev/null +++ b/lib/libm/arch/i387/s_finite.S @@ -0,0 +1,16 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_finite.S,v 1.4 1995/05/08 23:57:41 jtc Exp $") + +ENTRY(finite) + movl 8(%esp),%eax + andl $0x7ff00000, %eax + cmpl $0x7ff00000, %eax + setnel %al + andl $0x000000ff, %eax + ret diff --git a/lib/libm/arch/i387/s_finitef.S b/lib/libm/arch/i387/s_finitef.S new file mode 100644 index 00000000000..aee90cdd32e --- /dev/null +++ b/lib/libm/arch/i387/s_finitef.S @@ -0,0 +1,16 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_finitef.S,v 1.3 1995/05/09 00:00:02 jtc Exp $") + +ENTRY(finitef) + movl 4(%esp),%eax + andl $0x7ff00000, %eax + cmpl $0x7ff00000, %eax + setnel %al + andl $0x000000ff, %eax + ret diff --git a/lib/libm/arch/i387/s_floor.S b/lib/libm/arch/i387/s_floor.S new file mode 100644 index 00000000000..e39369fc906 --- /dev/null +++ b/lib/libm/arch/i387/s_floor.S @@ -0,0 +1,28 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_floor.S,v 1.4 1995/05/09 00:01:59 jtc Exp $") + +ENTRY(floor) + pushl %ebp + movl %esp,%ebp + subl $8,%esp + + fstcw -12(%ebp) /* store fpu control word */ + movw -12(%ebp),%dx + orw $0x0400,%dx /* round towards -oo */ + andw $0xf7ff,%dx + movw %dx,-16(%ebp) + fldcw -16(%ebp) /* load modfied control word */ + + fldl 8(%ebp); /* round */ + frndint + + fldcw -12(%ebp) /* restore original control word */ + + leave + ret diff --git a/lib/libm/arch/i387/s_floorf.S b/lib/libm/arch/i387/s_floorf.S new file mode 100644 index 00000000000..4c0f87bc384 --- /dev/null +++ b/lib/libm/arch/i387/s_floorf.S @@ -0,0 +1,28 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_floorf.S,v 1.3 1995/05/09 00:04:32 jtc Exp $") + +ENTRY(floorf) + pushl %ebp + movl %esp,%ebp + subl $8,%esp + + fstcw -12(%ebp) /* store fpu control word */ + movw -12(%ebp),%dx + orw $0x0400,%dx /* round towards -oo */ + andw $0xf7ff,%dx + movw %dx,-16(%ebp) + fldcw -16(%ebp) /* load modfied control word */ + + flds 8(%ebp); /* round */ + frndint + + fldcw -12(%ebp) /* restore original control word */ + + leave + ret diff --git a/lib/libm/arch/i387/s_ilogb.S b/lib/libm/arch/i387/s_ilogb.S new file mode 100644 index 00000000000..ed7f777c378 --- /dev/null +++ b/lib/libm/arch/i387/s_ilogb.S @@ -0,0 +1,23 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_ilogb.S,v 1.4 1995/05/09 00:06:28 jtc Exp $") + +ENTRY(ilogb) + pushl %esp + movl %esp,%ebp + subl $4,%esp + + fldl 8(%ebp) + fxtract + fstpl %st + + fistpl -4(%ebp) + movl -4(%ebp),%eax + + leave + ret diff --git a/lib/libm/arch/i387/s_ilogbf.S b/lib/libm/arch/i387/s_ilogbf.S new file mode 100644 index 00000000000..36f93251ea5 --- /dev/null +++ b/lib/libm/arch/i387/s_ilogbf.S @@ -0,0 +1,23 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_ilogbf.S,v 1.3 1995/05/09 00:08:15 jtc Exp $") + +ENTRY(ilogbf) + pushl %esp + movl %esp,%ebp + subl $4,%esp + + flds 8(%ebp) + fxtract + fstpl %st + + fistpl -4(%ebp) + movl -4(%ebp),%eax + + leave + ret diff --git a/lib/libm/arch/i387/s_log1p.S b/lib/libm/arch/i387/s_log1p.S new file mode 100644 index 00000000000..561841fc1b0 --- /dev/null +++ b/lib/libm/arch/i387/s_log1p.S @@ -0,0 +1,22 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_log1p.S,v 1.7 1995/05/09 00:10:58 jtc Exp $") + +/* + * Since the fyl2xp1 instruction has such a limited range: + * -(1 - (sqrt(2) / 2)) <= x <= sqrt(2) - 1 + * it's not worth trying to use it. + */ + +ENTRY(log1p) + fldln2 + fldl 4(%esp) + fld1 + faddp + fyl2x + ret diff --git a/lib/libm/arch/i387/s_log1pf.S b/lib/libm/arch/i387/s_log1pf.S new file mode 100644 index 00000000000..c53cb73a35b --- /dev/null +++ b/lib/libm/arch/i387/s_log1pf.S @@ -0,0 +1,22 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_log1pf.S,v 1.4 1995/05/09 00:13:05 jtc Exp $") + +/* + * Since the fyl2xp1 instruction has such a limited range: + * -(1 - (sqrt(2) / 2)) <= x <= sqrt(2) - 1 + * it's not worth trying to use it. + */ + +ENTRY(log1pf) + fldln2 + flds 4(%esp) + fld1 + faddp + fyl2x + ret diff --git a/lib/libm/arch/i387/s_logb.S b/lib/libm/arch/i387/s_logb.S new file mode 100644 index 00000000000..532837f8ae5 --- /dev/null +++ b/lib/libm/arch/i387/s_logb.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_logb.S,v 1.4 1995/05/09 00:14:30 jtc Exp $") + +ENTRY(logb) + fldl 4(%esp) + fxtract + fstpl %st + ret diff --git a/lib/libm/arch/i387/s_logbf.S b/lib/libm/arch/i387/s_logbf.S new file mode 100644 index 00000000000..b22964cf64b --- /dev/null +++ b/lib/libm/arch/i387/s_logbf.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_logbf.S,v 1.3 1995/05/09 00:15:12 jtc Exp $") + +ENTRY(logbf) + flds 4(%esp) + fxtract + fstpl %st + ret diff --git a/lib/libm/arch/i387/s_rint.S b/lib/libm/arch/i387/s_rint.S new file mode 100644 index 00000000000..df3e3fef547 --- /dev/null +++ b/lib/libm/arch/i387/s_rint.S @@ -0,0 +1,13 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_rint.S,v 1.4 1995/05/09 00:16:08 jtc Exp $") + +ENTRY(rint) + fldl 4(%esp) + frndint + ret diff --git a/lib/libm/arch/i387/s_rintf.S b/lib/libm/arch/i387/s_rintf.S new file mode 100644 index 00000000000..3454c650b60 --- /dev/null +++ b/lib/libm/arch/i387/s_rintf.S @@ -0,0 +1,13 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_rintf.S,v 1.3 1995/05/09 00:17:22 jtc Exp $") + +ENTRY(rintf) + flds 4(%esp) + frndint + ret diff --git a/lib/libm/arch/i387/s_scalbn.S b/lib/libm/arch/i387/s_scalbn.S new file mode 100644 index 00000000000..743ee38c49b --- /dev/null +++ b/lib/libm/arch/i387/s_scalbn.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_scalbn.S,v 1.4 1995/05/09 00:19:06 jtc Exp $") + +ENTRY(scalbn) + fildl 12(%esp) + fldl 4(%esp) + fscale + ret diff --git a/lib/libm/arch/i387/s_scalbnf.S b/lib/libm/arch/i387/s_scalbnf.S new file mode 100644 index 00000000000..6cae0248876 --- /dev/null +++ b/lib/libm/arch/i387/s_scalbnf.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_scalbnf.S,v 1.3 1995/05/09 00:19:59 jtc Exp $") + +ENTRY(scalbnf) + fildl 8(%esp) + flds 4(%esp) + fscale + ret diff --git a/lib/libm/arch/i387/s_significand.S b/lib/libm/arch/i387/s_significand.S new file mode 100644 index 00000000000..74811a3057a --- /dev/null +++ b/lib/libm/arch/i387/s_significand.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_significand.S,v 1.4 1995/05/09 00:21:47 jtc Exp $") + +ENTRY(significand) + fldl 4(%esp) + fxtract + fstpl %st(1) + ret diff --git a/lib/libm/arch/i387/s_significandf.S b/lib/libm/arch/i387/s_significandf.S new file mode 100644 index 00000000000..77b8ae0e210 --- /dev/null +++ b/lib/libm/arch/i387/s_significandf.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_significandf.S,v 1.3 1995/05/09 00:24:07 jtc Exp $") + +ENTRY(significandf) + flds 4(%esp) + fxtract + fstpl %st(1) + ret diff --git a/lib/libm/arch/i387/s_sin.S b/lib/libm/arch/i387/s_sin.S new file mode 100644 index 00000000000..b792ef07f2f --- /dev/null +++ b/lib/libm/arch/i387/s_sin.S @@ -0,0 +1,26 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_sin.S,v 1.5 1995/05/09 00:25:54 jtc Exp $") + +ENTRY(sin) + fldl 4(%esp) + fsin + fnstsw %ax + andw $0x400,%ax + jnz 1f + ret +1: fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fnstsw %ax + andw $0x400,%ax + jnz 2b + fstp %st(1) + fsin + ret diff --git a/lib/libm/arch/i387/s_sinf.S b/lib/libm/arch/i387/s_sinf.S new file mode 100644 index 00000000000..b2ffe739334 --- /dev/null +++ b/lib/libm/arch/i387/s_sinf.S @@ -0,0 +1,14 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_sinf.S,v 1.3 1995/05/09 00:27:53 jtc Exp $") + +/* A float's domain isn't large enough to require argument reduction. */ +ENTRY(sinf) + flds 4(%esp) + fsin + ret diff --git a/lib/libm/arch/i387/s_tan.S b/lib/libm/arch/i387/s_tan.S new file mode 100644 index 00000000000..e99698492c8 --- /dev/null +++ b/lib/libm/arch/i387/s_tan.S @@ -0,0 +1,28 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_tan.S,v 1.5 1995/05/09 00:30:00 jtc Exp $") + +ENTRY(tan) + fldl 4(%esp) + fptan + fnstsw %ax + andw $0x400,%ax + jnz 1f + fstp %st(0) + ret +1: fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fstsw %ax + andw $0x400,%ax + jnz 2b + fstp %st(1) + fptan + fstp %st(0) + ret diff --git a/lib/libm/arch/i387/s_tanf.S b/lib/libm/arch/i387/s_tanf.S new file mode 100644 index 00000000000..11059526f20 --- /dev/null +++ b/lib/libm/arch/i387/s_tanf.S @@ -0,0 +1,15 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_tanf.S,v 1.3 1995/05/09 00:31:09 jtc Exp $") + +/* A float's domain isn't large enough to require argument reduction. */ +ENTRY(tanf) + flds 4(%esp) + fptan + fstp %st(0) + ret diff --git a/lib/libm/arch/mc68881/e_acos.S b/lib/libm/arch/mc68881/e_acos.S new file mode 100644 index 00000000000..e1a1f9d2469 --- /dev/null +++ b/lib/libm/arch/mc68881/e_acos.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)asincos.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_acos.S,v 1.3 1995/05/09 00:38:23 jtc Exp $") + +ENTRY(__ieee754_acos) + facosd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_asin.S b/lib/libm/arch/mc68881/e_asin.S new file mode 100644 index 00000000000..abd608b9f2b --- /dev/null +++ b/lib/libm/arch/mc68881/e_asin.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)asincos.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_asin.S,v 1.3 1995/05/09 00:42:19 jtc Exp $") + +ENTRY(__ieee754_asin) + fasind sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_atanh.S b/lib/libm/arch/mc68881/e_atanh.S new file mode 100644 index 00000000000..23ef840fa51 --- /dev/null +++ b/lib/libm/arch/mc68881/e_atanh.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)atanh.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_atanh.S,v 1.3 1995/05/09 00:45:54 jtc Exp $") + +ENTRY(__ieee754_atanh) + fatanhd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_cosh.S b/lib/libm/arch/mc68881/e_cosh.S new file mode 100644 index 00000000000..c1282260b53 --- /dev/null +++ b/lib/libm/arch/mc68881/e_cosh.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)cosh.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_cosh.S,v 1.3 1995/05/09 00:48:41 jtc Exp $") + +ENTRY(__ieee754_cosh) + fcoshd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_exp.S b/lib/libm/arch/mc68881/e_exp.S new file mode 100644 index 00000000000..f337306b70a --- /dev/null +++ b/lib/libm/arch/mc68881/e_exp.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)exp.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_exp.S,v 1.3 1995/05/09 00:52:06 jtc Exp $") + +ENTRY(__ieee754_exp) + fetoxd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_log.S b/lib/libm/arch/mc68881/e_log.S new file mode 100644 index 00000000000..19f83b22768 --- /dev/null +++ b/lib/libm/arch/mc68881/e_log.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)log.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_log.S,v 1.3 1995/05/09 00:56:09 jtc Exp $") + +ENTRY(__ieee754_log) + flognd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_log10.S b/lib/libm/arch/mc68881/e_log10.S new file mode 100644 index 00000000000..3e37d21e79b --- /dev/null +++ b/lib/libm/arch/mc68881/e_log10.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)log10.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_log10.S,v 1.3 1995/05/09 01:01:17 jtc Exp $") + +ENTRY(__ieee754_log10) + flog10d sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_remainder.S b/lib/libm/arch/mc68881/e_remainder.S new file mode 100644 index 00000000000..a68b35e5567 --- /dev/null +++ b/lib/libm/arch/mc68881/e_remainder.S @@ -0,0 +1,16 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_remainder.S,v 1.3 1995/05/11 23:19:52 jtc Exp $") + +ENTRY(__ieee754_remainder) + fmoved sp@(4),fp0 + fremd sp@(12),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_scalb.S b/lib/libm/arch/mc68881/e_scalb.S new file mode 100644 index 00000000000..45e92da9f0c --- /dev/null +++ b/lib/libm/arch/mc68881/e_scalb.S @@ -0,0 +1,18 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: e_scalb.S,v 1.4 1995/05/11 23:19:42 jtc Exp $") + +ENTRY(__ieee754_scalb) + fmoved sp@(4),fp0 + fbeq Ldone + fscaled sp@(12),fp0 +Ldone: + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_sinh.S b/lib/libm/arch/mc68881/e_sinh.S new file mode 100644 index 00000000000..dbe0f5b3ace --- /dev/null +++ b/lib/libm/arch/mc68881/e_sinh.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)sinh.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_sinh.S,v 1.3 1995/05/09 01:22:19 jtc Exp $") + +ENTRY(__ieee754_sinh) + fsinhd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/e_sqrt.S b/lib/libm/arch/mc68881/e_sqrt.S new file mode 100644 index 00000000000..d71dbf693fe --- /dev/null +++ b/lib/libm/arch/mc68881/e_sqrt.S @@ -0,0 +1,56 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)sqrt.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: e_sqrt.S,v 1.3 1995/05/09 01:28:27 jtc Exp $") + +/* + * sqrt(x) + * returns the square root of x correctly rounded according + * to the rounding mode. + */ + +ENTRY(__ieee754_sqrt) + fsqrtd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_atan.S b/lib/libm/arch/mc68881/s_atan.S new file mode 100644 index 00000000000..735d9f506b5 --- /dev/null +++ b/lib/libm/arch/mc68881/s_atan.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)atan.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_atan.S,v 1.3 1995/05/09 01:34:03 jtc Exp $") + +ENTRY(atan) + fatand sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_ceil.S b/lib/libm/arch/mc68881/s_ceil.S new file mode 100644 index 00000000000..c0c1f607769 --- /dev/null +++ b/lib/libm/arch/mc68881/s_ceil.S @@ -0,0 +1,63 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)floor.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_ceil.S,v 1.3 1995/05/09 01:39:23 jtc Exp $") + +| ceil(x) +| -floor(-x), for all real x +ENTRY(ceil) + fmovel fpcr,d0 | save old FPCR + fmoved sp@(4),fp0 | get argument + fbun Lret | if NaN, return NaN + fbolt Lrtz | <0, round to zero + fmovel #0x30,fpcr | >=0, round to inf + jra Ldoit +Lrtz: + fmovel #0x10,fpcr +Ldoit: + fintd sp@(4),fp0 | truncate + fmovel d0,fpcr | restore old FPCR +Lret: + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_copysign.S b/lib/libm/arch/mc68881/s_copysign.S new file mode 100644 index 00000000000..151be5e7ce2 --- /dev/null +++ b/lib/libm/arch/mc68881/s_copysign.S @@ -0,0 +1,56 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)support.s 5.2 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_copysign.S,v 1.3 1995/05/09 01:46:33 jtc Exp $") + +| copysign(x,y) +| returns x with the sign of y. +ENTRY(copysign) + movl sp@(4),d0 + movl sp@(8),d1 + tstw sp@(12) + jmi Lneg + bclr #31,d0 + rts +Lneg: + bset #31,d0 + rts diff --git a/lib/libm/arch/mc68881/s_cos.S b/lib/libm/arch/mc68881/s_cos.S new file mode 100644 index 00000000000..285d277a4cd --- /dev/null +++ b/lib/libm/arch/mc68881/s_cos.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)sincos.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_cos.S,v 1.3 1995/05/09 01:51:45 jtc Exp $") + +ENTRY(cos) + fcosd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_expm1.S b/lib/libm/arch/mc68881/s_expm1.S new file mode 100644 index 00000000000..8dfef277fb7 --- /dev/null +++ b/lib/libm/arch/mc68881/s_expm1.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)expm1.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_expm1.S,v 1.3 1995/05/09 01:57:05 jtc Exp $") + +ENTRY(expm1) + fetoxm1d sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_finite.S b/lib/libm/arch/mc68881/s_finite.S new file mode 100644 index 00000000000..5cb8d4e68e5 --- /dev/null +++ b/lib/libm/arch/mc68881/s_finite.S @@ -0,0 +1,57 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)support.s 5.2 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_finite.S,v 1.3 1995/05/09 02:03:31 jtc Exp $") + +| finite(x) +| returns the value TRUE if -INF < x < +INF and returns FALSE otherwise. +ENTRY(finite) + movw #0x7FF0,d0 + movw sp@(4),d1 + andw d0,d1 + cmpw d0,d1 + beq Lnotfin + moveq #1,d0 + rts +Lnotfin: + clrl d0 + rts diff --git a/lib/libm/arch/mc68881/s_floor.S b/lib/libm/arch/mc68881/s_floor.S new file mode 100644 index 00000000000..09691b252a8 --- /dev/null +++ b/lib/libm/arch/mc68881/s_floor.S @@ -0,0 +1,63 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)floor.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_floor.S,v 1.3 1995/05/09 02:11:19 jtc Exp $") + +| floor(x) +| the largest integer no larger than x +ENTRY(floor) + fmovel fpcr,d0 | save old FPCR + fmoved sp@(4),fp0 | get argument + fbun Lret | if NaN, return NaN + fboge Lrtz | >=0, round to zero + fmovel #0x20,fpcr | <0, round to -inf + jra Ldoit +Lrtz: + fmovel #0x10,fpcr +Ldoit: + fintd sp@(4),fp0 | truncate + fmovel d0,fpcr | restore old FPCR +Lret: + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_log1p.S b/lib/libm/arch/mc68881/s_log1p.S new file mode 100644 index 00000000000..3b8c39c3b43 --- /dev/null +++ b/lib/libm/arch/mc68881/s_log1p.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)log1p.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_log1p.S,v 1.3 1995/05/09 02:20:35 jtc Exp $") + +ENTRY(log1p) + flognp1d sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_logb.S b/lib/libm/arch/mc68881/s_logb.S new file mode 100644 index 00000000000..b912e1f39a5 --- /dev/null +++ b/lib/libm/arch/mc68881/s_logb.S @@ -0,0 +1,69 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)support.s 5.2 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_logb.S,v 1.4 1995/05/09 02:37:09 jtc Exp $") + +| logb(x) +| returns the unbiased exponent of x, a signed integer in double precision, +| except that logb(0) is -INF, logb(INF) is +INF, and logb(NAN) is that NAN. +ENTRY(logb) + movw sp@(4),d0 + movw #0x7FF0,d1 | exponent bits + andw d1,d0 | mask off all else + cmpw d1,d0 | max exponent? + bne Lfinite | no, is finite + fmoved sp@(4),fp0 | yes, infinite or NaN + fbun Ldone | NaN returns NaN + fabsx fp0 | +-inf returns inf + jra Ldone +Lfinite: + fmoved sp@(4),fp0 | get entire number + fbne Lnonz | zero? + flog2x fp0 | yes, log(0) a convenient source of -inf + jra Ldone +Lnonz: + fgetexpx fp0 | get exponent +Ldone: + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_rint.S b/lib/libm/arch/mc68881/s_rint.S new file mode 100644 index 00000000000..6ab3ac0edb9 --- /dev/null +++ b/lib/libm/arch/mc68881/s_rint.S @@ -0,0 +1,52 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)floor.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_rint.S,v 1.3 1995/05/09 02:48:48 jtc Exp $") + +| rint(x) +| delivers integer nearest x in direction of prevailing rounding mode +ENTRY(rint) + fintd sp@(4),fp0 | use prevailing rounding mode + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_scalbn.S b/lib/libm/arch/mc68881/s_scalbn.S new file mode 100644 index 00000000000..685617d5340 --- /dev/null +++ b/lib/libm/arch/mc68881/s_scalbn.S @@ -0,0 +1,55 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)support.s 5.2 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_scalbn.S,v 1.3 1995/05/09 03:01:41 jtc Exp $") + +| scalbn(x, N) +| returns x * (2**N), for integer values N. +ENTRY(scalbn) + fmoved sp@(4),fp0 + fbeq Ldone + fscalel sp@(12),fp0 +Ldone: + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_sin.S b/lib/libm/arch/mc68881/s_sin.S new file mode 100644 index 00000000000..3bb264a6028 --- /dev/null +++ b/lib/libm/arch/mc68881/s_sin.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)sincos.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_sin.S,v 1.3 1995/05/10 20:44:22 jtc Exp $") + +ENTRY(sin) + fsind sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_tan.S b/lib/libm/arch/mc68881/s_tan.S new file mode 100644 index 00000000000..d55fadb84d7 --- /dev/null +++ b/lib/libm/arch/mc68881/s_tan.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)tan.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_tan.S,v 1.3 1995/05/10 20:44:25 jtc Exp $") + +ENTRY(tan) + ftand sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/mc68881/s_tanh.S b/lib/libm/arch/mc68881/s_tanh.S new file mode 100644 index 00000000000..2d4a153d203 --- /dev/null +++ b/lib/libm/arch/mc68881/s_tanh.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)tanh.s 5.1 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_tanh.S,v 1.3 1995/05/10 20:44:26 jtc Exp $") + +ENTRY(tanh) + ftanhd sp@(4),fp0 + fmoved fp0,sp@- + movel sp@+,d0 + movel sp@+,d1 + rts diff --git a/lib/libm/arch/vax/n_argred.S b/lib/libm/arch/vax/n_argred.S new file mode 100644 index 00000000000..a25922b26cf --- /dev/null +++ b/lib/libm/arch/vax/n_argred.S @@ -0,0 +1,792 @@ +/* $NetBSD: n_argred.S,v 1.1 1995/10/10 23:40:21 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)argred.s 8.1 (Berkeley) 6/4/93 + */ + +/* + * libm$argred implements Bob Corbett's argument reduction and + * libm$sincos implements Peter Tang's double precision sin/cos. + * + * Note: The two entry points libm$argred and libm$sincos are meant + * to be used only by _sin, _cos and _tan. + * + * method: true range reduction to [-pi/4,pi/4], P. Tang & B. Corbett + * S. McDonald, April 4, 1985 + */ + .globl libm$argred + .globl libm$sincos + .text + .align 1 + +libm$argred: +/* + * Compare the argument with the largest possible that can + * be reduced by table lookup. r3 := |x| will be used in table_lookup . + */ + movd r0,r3 + bgeq abs1 + mnegd r3,r3 +abs1: + cmpd r3,$0d+4.55530934770520019583e+01 + blss small_arg + jsb trigred + rsb +small_arg: + jsb table_lookup + rsb +/* + * At this point, + * r0 contains the quadrant number, 0, 1, 2, or 3; + * r2/r1 contains the reduced argument as a D-format number; + * r3 contains a F-format extension to the reduced argument; + * r4 contains a 0 or 1 corresponding to a sin or cos entry. + */ +libm$sincos: +/* + * Compensate for a cosine entry by adding one to the quadrant number. + */ + addl2 r4,r0 +/* + * Polyd clobbers r5-r0 ; save X in r7/r6 . + * This can be avoided by rewriting trigred . + */ + movd r1,r6 +/* + * Likewise, save alpha in r8 . + * This can be avoided by rewriting trigred . + */ + movf r3,r8 +/* + * Odd or even quadrant? cosine if odd, sine otherwise. + * Save floor(quadrant/2) in r9 ; it determines the final sign. + */ + rotl $-1,r0,r9 + blss cosine +sine: + muld2 r1,r1 # Xsq = X * X + cmpw $0x2480,r1 # [zl] Xsq > 2^-56? + blss 1f # [zl] yes, go ahead and do polyd + clrq r1 # [zl] work around 11/780 FPA polyd bug +1: + polyd r1,$7,sin_coef # Q = P(Xsq) , of deg 7 + mulf3 $0f3.0,r8,r4 # beta = 3 * alpha + mulf2 r0,r4 # beta = Q * beta + addf2 r8,r4 # beta = alpha + beta + muld2 r6,r0 # S(X) = X * Q +/* cvtfd r4,r4 ... r5 = 0 after a polyd. */ + addd2 r4,r0 # S(X) = beta + S(X) + addd2 r6,r0 # S(X) = X + S(X) + brb done +cosine: + muld2 r6,r6 # Xsq = X * X + beql zero_arg + mulf2 r1,r8 # beta = X * alpha + polyd r6,$7,cos_coef /* Q = P'(Xsq) , of deg 7 */ + subd3 r0,r8,r0 # beta = beta - Q + subw2 $0x80,r6 # Xsq = Xsq / 2 + addd2 r0,r6 # Xsq = Xsq + beta +zero_arg: + subd3 r6,$0d1.0,r0 # C(X) = 1 - Xsq +done: + blbc r9,even + mnegd r0,r0 +even: + rsb + +.data +.align 2 + +sin_coef: + .double 0d-7.53080332264191085773e-13 # s7 = 2^-29 -1.a7f2504ffc49f8.. + .double 0d+1.60573519267703489121e-10 # s6 = 2^-21 1.611adaede473c8.. + .double 0d-2.50520965150706067211e-08 # s5 = 2^-1a -1.ae644921ed8382.. + .double 0d+2.75573191800593885716e-06 # s4 = 2^-13 1.71de3a4b884278.. + .double 0d-1.98412698411850507950e-04 # s3 = 2^-0d -1.a01a01a0125e7d.. + .double 0d+8.33333333333325688985e-03 # s2 = 2^-07 1.11111111110e50 + .double 0d-1.66666666666666664354e-01 # s1 = 2^-03 -1.55555555555554 + .double 0d+0.00000000000000000000e+00 # s0 = 0 + +cos_coef: + .double 0d-1.13006966202629430300e-11 # s7 = 2^-25 -1.8D9BA04D1374BE.. + .double 0d+2.08746646574796004700e-09 # s6 = 2^-1D 1.1EE632650350BA.. + .double 0d-2.75573073031284417300e-07 # s5 = 2^-16 -1.27E4F31411719E.. + .double 0d+2.48015872682668025200e-05 # s4 = 2^-10 1.A01A0196B902E8.. + .double 0d-1.38888888888464709200e-03 # s3 = 2^-0A -1.6C16C16C11FACE.. + .double 0d+4.16666666666664761400e-02 # s2 = 2^-05 1.5555555555539E + .double 0d+0.00000000000000000000e+00 # s1 = 0 + .double 0d+0.00000000000000000000e+00 # s0 = 0 + +/* + * Multiples of pi/2 expressed as the sum of three doubles, + * + * trailing: n * pi/2 , n = 0, 1, 2, ..., 29 + * trailing[n] , + * + * middle: n * pi/2 , n = 0, 1, 2, ..., 29 + * middle[n] , + * + * leading: n * pi/2 , n = 0, 1, 2, ..., 29 + * leading[n] , + * + * where + * leading[n] := (n * pi/2) rounded, + * middle[n] := (n * pi/2 - leading[n]) rounded, + * trailing[n] := (( n * pi/2 - leading[n]) - middle[n]) rounded . + */ +trailing: + .double 0d+0.00000000000000000000e+00 # 0 * pi/2 trailing + .double 0d+4.33590506506189049611e-35 # 1 * pi/2 trailing + .double 0d+8.67181013012378099223e-35 # 2 * pi/2 trailing + .double 0d+1.30077151951856714215e-34 # 3 * pi/2 trailing + .double 0d+1.73436202602475619845e-34 # 4 * pi/2 trailing + .double 0d-1.68390735624352669192e-34 # 5 * pi/2 trailing + .double 0d+2.60154303903713428430e-34 # 6 * pi/2 trailing + .double 0d-8.16726343231148352150e-35 # 7 * pi/2 trailing + .double 0d+3.46872405204951239689e-34 # 8 * pi/2 trailing + .double 0d+3.90231455855570147991e-34 # 9 * pi/2 trailing + .double 0d-3.36781471248705338384e-34 # 10 * pi/2 trailing + .double 0d-1.06379439835298071785e-33 # 11 * pi/2 trailing + .double 0d+5.20308607807426856861e-34 # 12 * pi/2 trailing + .double 0d+5.63667658458045770509e-34 # 13 * pi/2 trailing + .double 0d-1.63345268646229670430e-34 # 14 * pi/2 trailing + .double 0d-1.19986217995610764801e-34 # 15 * pi/2 trailing + .double 0d+6.93744810409902479378e-34 # 16 * pi/2 trailing + .double 0d-8.03640094449267300110e-34 # 17 * pi/2 trailing + .double 0d+7.80462911711140295982e-34 # 18 * pi/2 trailing + .double 0d-7.16921993148029483506e-34 # 19 * pi/2 trailing + .double 0d-6.73562942497410676769e-34 # 20 * pi/2 trailing + .double 0d-6.30203891846791677593e-34 # 21 * pi/2 trailing + .double 0d-2.12758879670596143570e-33 # 22 * pi/2 trailing + .double 0d+2.53800212047402350390e-33 # 23 * pi/2 trailing + .double 0d+1.04061721561485371372e-33 # 24 * pi/2 trailing + .double 0d+6.11729905311472319056e-32 # 25 * pi/2 trailing + .double 0d+1.12733531691609154102e-33 # 26 * pi/2 trailing + .double 0d-3.70049587943078297272e-34 # 27 * pi/2 trailing + .double 0d-3.26690537292459340860e-34 # 28 * pi/2 trailing + .double 0d-1.14812616507957271361e-34 # 29 * pi/2 trailing + +middle: + .double 0d+0.00000000000000000000e+00 # 0 * pi/2 middle + .double 0d+5.72118872610983179676e-18 # 1 * pi/2 middle + .double 0d+1.14423774522196635935e-17 # 2 * pi/2 middle + .double 0d-3.83475850529283316309e-17 # 3 * pi/2 middle + .double 0d+2.28847549044393271871e-17 # 4 * pi/2 middle + .double 0d-2.69052076007086676522e-17 # 5 * pi/2 middle + .double 0d-7.66951701058566632618e-17 # 6 * pi/2 middle + .double 0d-1.54628301484890040587e-17 # 7 * pi/2 middle + .double 0d+4.57695098088786543741e-17 # 8 * pi/2 middle + .double 0d+1.07001849766246313192e-16 # 9 * pi/2 middle + .double 0d-5.38104152014173353044e-17 # 10 * pi/2 middle + .double 0d-2.14622680169080983801e-16 # 11 * pi/2 middle + .double 0d-1.53390340211713326524e-16 # 12 * pi/2 middle + .double 0d-9.21580002543456677056e-17 # 13 * pi/2 middle + .double 0d-3.09256602969780081173e-17 # 14 * pi/2 middle + .double 0d+3.03066796603896507006e-17 # 15 * pi/2 middle + .double 0d+9.15390196177573087482e-17 # 16 * pi/2 middle + .double 0d+1.52771359575124969107e-16 # 17 * pi/2 middle + .double 0d+2.14003699532492626384e-16 # 18 * pi/2 middle + .double 0d-1.68853170360202329427e-16 # 19 * pi/2 middle + .double 0d-1.07620830402834670609e-16 # 20 * pi/2 middle + .double 0d+3.97700719404595604379e-16 # 21 * pi/2 middle + .double 0d-4.29245360338161967602e-16 # 22 * pi/2 middle + .double 0d-3.68013020380794313406e-16 # 23 * pi/2 middle + .double 0d-3.06780680423426653047e-16 # 24 * pi/2 middle + .double 0d-2.45548340466059054318e-16 # 25 * pi/2 middle + .double 0d-1.84316000508691335411e-16 # 26 * pi/2 middle + .double 0d-1.23083660551323675053e-16 # 27 * pi/2 middle + .double 0d-6.18513205939560162346e-17 # 28 * pi/2 middle + .double 0d-6.18980636588357585202e-19 # 29 * pi/2 middle + +leading: + .double 0d+0.00000000000000000000e+00 # 0 * pi/2 leading + .double 0d+1.57079632679489661351e+00 # 1 * pi/2 leading + .double 0d+3.14159265358979322702e+00 # 2 * pi/2 leading + .double 0d+4.71238898038468989604e+00 # 3 * pi/2 leading + .double 0d+6.28318530717958645404e+00 # 4 * pi/2 leading + .double 0d+7.85398163397448312306e+00 # 5 * pi/2 leading + .double 0d+9.42477796076937979208e+00 # 6 * pi/2 leading + .double 0d+1.09955742875642763501e+01 # 7 * pi/2 leading + .double 0d+1.25663706143591729081e+01 # 8 * pi/2 leading + .double 0d+1.41371669411540694661e+01 # 9 * pi/2 leading + .double 0d+1.57079632679489662461e+01 # 10 * pi/2 leading + .double 0d+1.72787595947438630262e+01 # 11 * pi/2 leading + .double 0d+1.88495559215387595842e+01 # 12 * pi/2 leading + .double 0d+2.04203522483336561422e+01 # 13 * pi/2 leading + .double 0d+2.19911485751285527002e+01 # 14 * pi/2 leading + .double 0d+2.35619449019234492582e+01 # 15 * pi/2 leading + .double 0d+2.51327412287183458162e+01 # 16 * pi/2 leading + .double 0d+2.67035375555132423742e+01 # 17 * pi/2 leading + .double 0d+2.82743338823081389322e+01 # 18 * pi/2 leading + .double 0d+2.98451302091030359342e+01 # 19 * pi/2 leading + .double 0d+3.14159265358979324922e+01 # 20 * pi/2 leading + .double 0d+3.29867228626928286062e+01 # 21 * pi/2 leading + .double 0d+3.45575191894877260523e+01 # 22 * pi/2 leading + .double 0d+3.61283155162826226103e+01 # 23 * pi/2 leading + .double 0d+3.76991118430775191683e+01 # 24 * pi/2 leading + .double 0d+3.92699081698724157263e+01 # 25 * pi/2 leading + .double 0d+4.08407044966673122843e+01 # 26 * pi/2 leading + .double 0d+4.24115008234622088423e+01 # 27 * pi/2 leading + .double 0d+4.39822971502571054003e+01 # 28 * pi/2 leading + .double 0d+4.55530934770520019583e+01 # 29 * pi/2 leading + +twoOverPi: + .double 0d+6.36619772367581343076e-01 + .text + .align 1 + +table_lookup: + muld3 r3,twoOverPi,r0 + cvtrdl r0,r0 # n = nearest int to ((2/pi)*|x|) rnded + mull3 $8,r0,r5 + subd2 leading(r5),r3 # p = (|x| - leading n*pi/2) exactly + subd3 middle(r5),r3,r1 # q = (p - middle n*pi/2) rounded + subd2 r1,r3 # r = (p - q) + subd2 middle(r5),r3 # r = r - middle n*pi/2 + subd2 trailing(r5),r3 # r = r - trailing n*pi/2 rounded +/* + * If the original argument was negative, + * negate the reduce argument and + * adjust the octant/quadrant number. + */ + tstw 4(ap) + bgeq abs2 + mnegf r1,r1 + mnegf r3,r3 +/* subb3 r0,$8,r0 ...used for pi/4 reduction -S.McD */ + subb3 r0,$4,r0 +abs2: +/* + * Clear all unneeded octant/quadrant bits. + */ +/* bicb2 $0xf8,r0 ...used for pi/4 reduction -S.McD */ + bicb2 $0xfc,r0 + rsb +/* + * p.0 + */ + .text + .align 2 +/* + * Only 256 (actually 225) bits of 2/pi are needed for VAX double + * precision; this was determined by enumerating all the nearest + * machine integer multiples of pi/2 using continued fractions. + * (8a8d3673775b7ff7 required the most bits.) -S.McD + */ + .long 0 + .long 0 + .long 0xaef1586d + .long 0x9458eaf7 + .long 0x10e4107f + .long 0xd8a5664f + .long 0x4d377036 + .long 0x09d5f47d + .long 0x91054a7f + .long 0xbe60db93 +bits2opi: + .long 0x00000028 + .long 0 +/* + * Note: wherever you see the word `octant', read `quadrant'. + * Currently this code is set up for pi/2 argument reduction. + * By uncommenting/commenting the appropriate lines, it will + * also serve as a pi/4 argument reduction code. + */ + +/* p.1 + * Trigred preforms argument reduction + * for the trigonometric functions. It + * takes one input argument, a D-format + * number in r1/r0 . The magnitude of + * the input argument must be greater + * than or equal to 1/2 . Trigred produces + * three results: the number of the octant + * occupied by the argument, the reduced + * argument, and an extension of the + * reduced argument. The octant number is + * returned in r0 . The reduced argument + * is returned as a D-format number in + * r2/r1 . An 8 bit extension of the + * reduced argument is returned as an + * F-format number in r3. + * p.2 + */ +trigred: +/* + * Save the sign of the input argument. + */ + movw r0,-(sp) +/* + * Extract the exponent field. + */ + extzv $7,$7,r0,r2 +/* + * Convert the fraction part of the input + * argument into a quadword integer. + */ + bicw2 $0xff80,r0 + bisb2 $0x80,r0 # -S.McD + rotl $16,r0,r0 + rotl $16,r1,r1 +/* + * If r1 is negative, add 1 to r0 . This + * adjustment is made so that the two's + * complement multiplications done later + * will produce unsigned results. + */ + bgeq posmid + incl r0 +posmid: +/* p.3 + * + * Set r3 to the address of the first quadword + * used to obtain the needed portion of 2/pi . + * The address is longword aligned to ensure + * efficient access. + */ + ashl $-3,r2,r3 + bicb2 $3,r3 + subl3 r3,$bits2opi,r3 +/* + * Set r2 to the size of the shift needed to + * obtain the correct portion of 2/pi . + */ + bicb2 $0xe0,r2 +/* p.4 + * + * Move the needed 128 bits of 2/pi into + * r11 - r8 . Adjust the numbers to allow + * for unsigned multiplication. + */ + ashq r2,(r3),r10 + + subl2 $4,r3 + ashq r2,(r3),r9 + bgeq signoff1 + incl r11 +signoff1: + subl2 $4,r3 + ashq r2,(r3),r8 + bgeq signoff2 + incl r10 +signoff2: + subl2 $4,r3 + ashq r2,(r3),r7 + bgeq signoff3 + incl r9 +signoff3: +/* p.5 + * + * Multiply the contents of r0/r1 by the + * slice of 2/pi in r11 - r8 . + */ + emul r0,r8,$0,r4 + emul r0,r9,r5,r5 + emul r0,r10,r6,r6 + + emul r1,r8,$0,r7 + emul r1,r9,r8,r8 + emul r1,r10,r9,r9 + emul r1,r11,r10,r10 + + addl2 r4,r8 + adwc r5,r9 + adwc r6,r10 +/* p.6 + * + * If there are more than five leading zeros + * after the first two quotient bits or if there + * are more than five leading ones after the first + * two quotient bits, generate more fraction bits. + * Otherwise, branch to code to produce the result. + */ + bicl3 $0xc1ffffff,r10,r4 + beql more1 + cmpl $0x3e000000,r4 + bneq result +more1: +/* p.7 + * + * generate another 32 result bits. + */ + subl2 $4,r3 + ashq r2,(r3),r5 + bgeq signoff4 + + emul r1,r6,$0,r4 + addl2 r1,r5 + emul r0,r6,r5,r5 + addl2 r0,r6 + brb addbits1 + +signoff4: + emul r1,r6,$0,r4 + emul r0,r6,r5,r5 + +addbits1: + addl2 r5,r7 + adwc r6,r8 + adwc $0,r9 + adwc $0,r10 +/* p.8 + * + * Check for massive cancellation. + */ + bicl3 $0xc0000000,r10,r6 +/* bneq more2 -S.McD Test was backwards */ + beql more2 + cmpl $0x3fffffff,r6 + bneq result +more2: +/* p.9 + * + * If massive cancellation has occurred, + * generate another 24 result bits. + * Testing has shown there will always be + * enough bits after this point. + */ + subl2 $4,r3 + ashq r2,(r3),r5 + bgeq signoff5 + + emul r0,r6,r4,r5 + addl2 r0,r6 + brb addbits2 + +signoff5: + emul r0,r6,r4,r5 + +addbits2: + addl2 r6,r7 + adwc $0,r8 + adwc $0,r9 + adwc $0,r10 +/* p.10 + * + * The following code produces the reduced + * argument from the product bits contained + * in r10 - r7 . + */ +result: +/* + * Extract the octant number from r10 . + */ +/* extzv $29,$3,r10,r0 ...used for pi/4 reduction -S.McD */ + extzv $30,$2,r10,r0 +/* + * Clear the octant bits in r10 . + */ +/* bicl2 $0xe0000000,r10 ...used for pi/4 reduction -S.McD */ + bicl2 $0xc0000000,r10 +/* + * Zero the sign flag. + */ + clrl r5 +/* p.11 + * + * Check to see if the fraction is greater than + * or equal to one-half. If it is, add one + * to the octant number, set the sign flag + * on, and replace the fraction with 1 minus + * the fraction. + */ +/* bitl $0x10000000,r10 ...used for pi/4 reduction -S.McD */ + bitl $0x20000000,r10 + beql small + incl r0 + incl r5 +/* subl3 r10,$0x1fffffff,r10 ...used for pi/4 reduction -S.McD */ + subl3 r10,$0x3fffffff,r10 + mcoml r9,r9 + mcoml r8,r8 + mcoml r7,r7 +small: +/* p.12 + * + * Test whether the first 29 bits of the ...used for pi/4 reduction -S.McD + * Test whether the first 30 bits of the + * fraction are zero. + */ + tstl r10 + beql tiny +/* + * Find the position of the first one bit in r10 . + */ + cvtld r10,r1 + extzv $7,$7,r1,r1 +/* + * Compute the size of the shift needed. + */ + subl3 r1,$32,r6 +/* + * Shift up the high order 64 bits of the + * product. + */ + ashq r6,r9,r10 + ashq r6,r8,r9 + brb mult +/* p.13 + * + * Test to see if the sign bit of r9 is on. + */ +tiny: + tstl r9 + bgeq tinier +/* + * If it is, shift the product bits up 32 bits. + */ + movl $32,r6 + movq r8,r10 + tstl r10 + brb mult +/* p.14 + * + * Test whether r9 is zero. It is probably + * impossible for both r10 and r9 to be + * zero, but until proven to be so, the test + * must be made. + */ +tinier: + beql zero +/* + * Find the position of the first one bit in r9 . + */ + cvtld r9,r1 + extzv $7,$7,r1,r1 +/* + * Compute the size of the shift needed. + */ + subl3 r1,$32,r1 + addl3 $32,r1,r6 +/* + * Shift up the high order 64 bits of the + * product. + */ + ashq r1,r8,r10 + ashq r1,r7,r9 + brb mult +/* p.15 + * + * The following code sets the reduced + * argument to zero. + */ +zero: + clrl r1 + clrl r2 + clrl r3 + brw return +/* p.16 + * + * At this point, r0 contains the octant number, + * r6 indicates the number of bits the fraction + * has been shifted, r5 indicates the sign of + * the fraction, r11/r10 contain the high order + * 64 bits of the fraction, and the condition + * codes indicate where the sign bit of r10 + * is on. The following code multiplies the + * fraction by pi/2 . + */ +mult: +/* + * Save r11/r10 in r4/r1 . -S.McD + */ + movl r11,r4 + movl r10,r1 +/* + * If the sign bit of r10 is on, add 1 to r11 . + */ + bgeq signoff6 + incl r11 +signoff6: +/* p.17 + * + * Move pi/2 into r3/r2 . + */ + movq $0xc90fdaa22168c235,r2 +/* + * Multiply the fraction by the portion of pi/2 + * in r2 . + */ + emul r2,r10,$0,r7 + emul r2,r11,r8,r7 +/* + * Multiply the fraction by the portion of pi/2 + * in r3 . + */ + emul r3,r10,$0,r9 + emul r3,r11,r10,r10 +/* + * Add the product bits together. + */ + addl2 r7,r9 + adwc r8,r10 + adwc $0,r11 +/* + * Compensate for not sign extending r8 above.-S.McD + */ + tstl r8 + bgeq signoff6a + decl r11 +signoff6a: +/* + * Compensate for r11/r10 being unsigned. -S.McD + */ + addl2 r2,r10 + adwc r3,r11 +/* + * Compensate for r3/r2 being unsigned. -S.McD + */ + addl2 r1,r10 + adwc r4,r11 +/* p.18 + * + * If the sign bit of r11 is zero, shift the + * product bits up one bit and increment r6 . + */ + blss signon + incl r6 + ashq $1,r10,r10 + tstl r9 + bgeq signoff7 + incl r10 +signoff7: +signon: +/* p.19 + * + * Shift the 56 most significant product + * bits into r9/r8 . The sign extension + * will be handled later. + */ + ashq $-8,r10,r8 +/* + * Convert the low order 8 bits of r10 + * into an F-format number. + */ + cvtbf r10,r3 +/* + * If the result of the conversion was + * negative, add 1 to r9/r8 . + */ + bgeq chop + incl r8 + adwc $0,r9 +/* + * If r9 is now zero, branch to special + * code to handle that possibility. + */ + beql carryout +chop: +/* p.20 + * + * Convert the number in r9/r8 into + * D-format number in r2/r1 . + */ + rotl $16,r8,r2 + rotl $16,r9,r1 +/* + * Set the exponent field to the appropriate + * value. Note that the extra bits created by + * sign extension are now eliminated. + */ + subw3 r6,$131,r6 + insv r6,$7,$9,r1 +/* + * Set the exponent field of the F-format + * number in r3 to the appropriate value. + */ + tstf r3 + beql return +/* extzv $7,$8,r3,r4 -S.McD */ + extzv $7,$7,r3,r4 + addw2 r4,r6 +/* subw2 $217,r6 -S.McD */ + subw2 $64,r6 + insv r6,$7,$8,r3 + brb return +/* p.21 + * + * The following code generates the appropriate + * result for the unlikely possibility that + * rounding the number in r9/r8 resulted in + * a carry out. + */ +carryout: + clrl r1 + clrl r2 + subw3 r6,$132,r6 + insv r6,$7,$9,r1 + tstf r3 + beql return + extzv $7,$8,r3,r4 + addw2 r4,r6 + subw2 $218,r6 + insv r6,$7,$8,r3 +/* p.22 + * + * The following code makes an needed + * adjustments to the signs of the + * results or to the octant number, and + * then returns. + */ +return: +/* + * Test if the fraction was greater than or + * equal to 1/2 . If so, negate the reduced + * argument. + */ + blbc r5,signoff8 + mnegf r1,r1 + mnegf r3,r3 +signoff8: +/* p.23 + * + * If the original argument was negative, + * negate the reduce argument and + * adjust the octant number. + */ + tstw (sp)+ + bgeq signoff9 + mnegf r1,r1 + mnegf r3,r3 +/* subb3 r0,$8,r0 ...used for pi/4 reduction -S.McD */ + subb3 r0,$4,r0 +signoff9: +/* + * Clear all unneeded octant bits. + * + * bicb2 $0xf8,r0 ...used for pi/4 reduction -S.McD */ + bicb2 $0xfc,r0 +/* + * Return. + */ + rsb diff --git a/lib/libm/arch/vax/n_atan2.S b/lib/libm/arch/vax/n_atan2.S new file mode 100644 index 00000000000..a3c271a9640 --- /dev/null +++ b/lib/libm/arch/vax/n_atan2.S @@ -0,0 +1,219 @@ +/* $NetBSD: n_atan2.S,v 1.1 1995/10/10 23:40:25 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)atan2.s 8.1 (Berkeley) 6/4/93 + */ + +/* + * ATAN2(Y,X) + * RETURN ARG (X+iY) + * VAX D FORMAT (56 BITS PRECISION) + * CODED IN VAX ASSEMBLY LANGUAGE BY K.C. NG, 4/16/85; + * + * + * Method : + * 1. Reduce y to positive by atan2(y,x)=-atan2(-y,x). + * 2. Reduce x to positive by (if x and y are unexceptional): + * ARG (x+iy) = arctan(y/x) ... if x > 0, + * ARG (x+iy) = pi - arctan[y/(-x)] ... if x < 0, + * 3. According to the integer k=4t+0.25 truncated , t=y/x, the argument + * is further reduced to one of the following intervals and the + * arctangent of y/x is evaluated by the corresponding formula: + * + * [0,7/16] atan(y/x) = t - t^3*(a1+t^2*(a2+...(a10+t^2*a11)...) + * [7/16,11/16] atan(y/x) = atan(1/2) + atan( (y-x/2)/(x+y/2) ) + * [11/16.19/16] atan(y/x) = atan( 1 ) + atan( (y-x)/(x+y) ) + * [19/16,39/16] atan(y/x) = atan(3/2) + atan( (y-1.5x)/(x+1.5y) ) + * [39/16,INF] atan(y/x) = atan(INF) + atan( -x/y ) + * + * Special cases: + * Notations: atan2(y,x) == ARG (x+iy) == ARG(x,y). + * + * ARG( NAN , (anything) ) is NaN; + * ARG( (anything), NaN ) is NaN; + * ARG(+(anything but NaN), +-0) is +-0 ; + * ARG(-(anything but NaN), +-0) is +-PI ; + * ARG( 0, +-(anything but 0 and NaN) ) is +-PI/2; + * ARG( +INF,+-(anything but INF and NaN) ) is +-0 ; + * ARG( -INF,+-(anything but INF and NaN) ) is +-PI; + * ARG( +INF,+-INF ) is +-PI/4 ; + * ARG( -INF,+-INF ) is +-3PI/4; + * ARG( (anything but,0,NaN, and INF),+-INF ) is +-PI/2; + * + * Accuracy: + * atan2(y,x) returns the exact ARG(x+iy) nearly rounded. + */ + + .text + .align 1 + .globl _atan2 +_atan2 : + .word 0x0ff4 + movq 4(ap),r2 # r2 = y + movq 12(ap),r4 # r4 = x + bicw3 $0x7f,r2,r0 + bicw3 $0x7f,r4,r1 + cmpw r0,$0x8000 # y is the reserved operand + jeql resop + cmpw r1,$0x8000 # x is the reserved operand + jeql resop + subl2 $8,sp + bicw3 $0x7fff,r2,-4(fp) # copy y sign bit to -4(fp) + bicw3 $0x7fff,r4,-8(fp) # copy x sign bit to -8(fp) + cmpd r4,$0x4080 # x = 1.0 ? + bneq xnot1 + movq r2,r0 + bicw2 $0x8000,r0 # t = |y| + movq r0,r2 # y = |y| + brb begin +xnot1: + bicw3 $0x807f,r2,r11 # yexp + jeql yeq0 # if y=0 goto yeq0 + bicw3 $0x807f,r4,r10 # xexp + jeql pio2 # if x=0 goto pio2 + subw2 r10,r11 # k = yexp - xexp + cmpw r11,$0x2000 # k >= 64 (exp) ? + jgeq pio2 # atan2 = +-pi/2 + divd3 r4,r2,r0 # t = y/x never overflow + bicw2 $0x8000,r0 # t > 0 + bicw2 $0xff80,r2 # clear the exponent of y + bicw2 $0xff80,r4 # clear the exponent of x + bisw2 $0x4080,r2 # normalize y to [1,2) + bisw2 $0x4080,r4 # normalize x to [1,2) + subw2 r11,r4 # scale x so that yexp-xexp=k +begin: + cmpw r0,$0x411c # t : 39/16 + jgeq L50 + addl3 $0x180,r0,r10 # 8*t + cvtrfl r10,r10 # [8*t] rounded to int + ashl $-1,r10,r10 # [8*t]/2 + casel r10,$0,$4 +L1: + .word L20-L1 + .word L20-L1 + .word L30-L1 + .word L40-L1 + .word L40-L1 +L10: + movq $0xb4d9940f985e407b,r6 # Hi=.98279372324732906796d0 + movq $0x21b1879a3bc2a2fc,r8 # Lo=-.17092002525602665777d-17 + subd3 r4,r2,r0 # y-x + addw2 $0x80,r0 # 2(y-x) + subd2 r4,r0 # 2(y-x)-x + addw2 $0x80,r4 # 2x + movq r2,r10 + addw2 $0x80,r10 # 2y + addd2 r10,r2 # 3y + addd2 r4,r2 # 3y+2x + divd2 r2,r0 # (2y-3x)/(2x+3y) + brw L60 +L20: + cmpw r0,$0x3280 # t : 2**(-28) + jlss L80 + clrq r6 # Hi=r6=0, Lo=r8=0 + clrq r8 + brw L60 +L30: + movq $0xda7b2b0d63383fed,r6 # Hi=.46364760900080611433d0 + movq $0xf0ea17b2bf912295,r8 # Lo=.10147340032515978826d-17 + movq r2,r0 + addw2 $0x80,r0 # 2y + subd2 r4,r0 # 2y-x + addw2 $0x80,r4 # 2x + addd2 r2,r4 # 2x+y + divd2 r4,r0 # (2y-x)/(2x+y) + brb L60 +L50: + movq $0x68c2a2210fda40c9,r6 # Hi=1.5707963267948966135d1 + movq $0x06e0145c26332326,r8 # Lo=.22517417741562176079d-17 + cmpw r0,$0x5100 # y : 2**57 + bgeq L90 + divd3 r2,r4,r0 + bisw2 $0x8000,r0 # -x/y + brb L60 +L40: + movq $0x68c2a2210fda4049,r6 # Hi=.78539816339744830676d0 + movq $0x06e0145c263322a6,r8 # Lo=.11258708870781088040d-17 + subd3 r4,r2,r0 # y-x + addd2 r4,r2 # y+x + divd2 r2,r0 # (y-x)/(y+x) +L60: + movq r0,r10 + muld2 r0,r0 + polyd r0,$12,ptable + muld2 r10,r0 + subd2 r0,r8 + addd3 r8,r10,r0 + addd2 r6,r0 +L80: + movw -8(fp),r2 + bneq pim + bisw2 -4(fp),r0 # return sign(y)*r0 + ret +L90: # x >= 2**25 + movq r6,r0 + brb L80 +pim: + subd3 r0,$0x68c2a2210fda4149,r0 # pi-t + bisw2 -4(fp),r0 + ret +yeq0: + movw -8(fp),r2 + beql zero # if sign(x)=1 return pi + movq $0x68c2a2210fda4149,r0 # pi=3.1415926535897932270d1 + ret +zero: + clrq r0 # return 0 + ret +pio2: + movq $0x68c2a2210fda40c9,r0 # pi/2=1.5707963267948966135d1 + bisw2 -4(fp),r0 # return sign(y)*pi/2 + ret +resop: + movq $0x8000,r0 # propagate the reserved operand + ret + .align 2 +ptable: + .quad 0xb50f5ce96e7abd60 + .quad 0x51e44a42c1073e02 + .quad 0x3487e3289643be35 + .quad 0xdb62066dffba3e54 + .quad 0xcf8e2d5199abbe70 + .quad 0x26f39cb884883e88 + .quad 0x135117d18998be9d + .quad 0x602ce9742e883eba + .quad 0xa35ad0be8e38bee3 + .quad 0xffac922249243f12 + .quad 0x7f14ccccccccbf4c + .quad 0xaa8faaaaaaaa3faa + .quad 0x0000000000000000 diff --git a/lib/libm/arch/vax/n_cabs.S b/lib/libm/arch/vax/n_cabs.S new file mode 100644 index 00000000000..10676fafe32 --- /dev/null +++ b/lib/libm/arch/vax/n_cabs.S @@ -0,0 +1,133 @@ +/* $NetBSD: n_cabs.S,v 1.1 1995/10/10 23:40:26 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)cabs.s 8.1 (Berkeley) 6/4/93 + */ + +/* + * double precision complex absolute value + * CABS by W. Kahan, 9/7/80. + * Revised for reserved operands by E. LeBlanc, 8/18/82 + * argument for complex absolute value by reference, *4(ap) + * argument for cabs and hypot (C fcns) by value, 4(ap) + * output is in r0:r1 (error less than 0.86 ulps) + */ + + .text + .align 1 + .globl _cabs + .globl _hypot + .globl _z_abs + .globl libm$cdabs_r6 + .globl libm$dsqrt_r5 + +/* entry for c functions cabs and hypot */ +_cabs: +_hypot: + .word 0x807c # save r2-r6, enable floating overflow + movq 4(ap),r0 # r0:1 = x + movq 12(ap),r2 # r2:3 = y + jmp cabs2 +/* entry for Fortran use, call by: d = abs(z) */ +_z_abs: + .word 0x807c # save r2-r6, enable floating overflow + movl 4(ap),r2 # indirect addressing is necessary here + movq (r2)+,r0 # r0:1 = x + movq (r2),r2 # r2:3 = y + +cabs2: + bicw3 $0x7f,r0,r4 # r4 has signed biased exp of x + cmpw $0x8000,r4 + jeql return # x is a reserved operand, so return it + bicw3 $0x7f,r2,r5 # r5 has signed biased exp of y + cmpw $0x8000,r5 + jneq cont /* y isn't a reserved operand */ + movq r2,r0 /* return y if it's reserved */ + ret + +cont: + bsbb regs_set # r0:1 = dsqrt(x^2+y^2)/2^r6 + addw2 r6,r0 # unscaled cdabs in r0:1 + jvc return # unless it overflows + subw2 $0x80,r0 # halve r0 to get meaningful overflow + addd2 r0,r0 # overflow; r0 is half of true abs value +return: + ret + +libm$cdabs_r6: # ENTRY POINT for cdsqrt + # calculates a scaled (factor in r6) + # complex absolute value + + movq (r4)+,r0 # r0:r1 = x via indirect addressing + movq (r4),r2 # r2:r3 = y via indirect addressing + + bicw3 $0x7f,r0,r5 # r5 has signed biased exp of x + cmpw $0x8000,r5 + jeql cdreserved # x is a reserved operand + bicw3 $0x7f,r2,r5 # r5 has signed biased exp of y + cmpw $0x8000,r5 + jneq regs_set /* y isn't a reserved operand either? */ + +cdreserved: + movl *4(ap),r4 # r4 -> (u,v), if x or y is reserved + movq r0,(r4)+ # copy u and v as is and return + movq r2,(r4) # (again addressing is indirect) + ret + +regs_set: + bicw2 $0x8000,r0 # r0:r1 = dabs(x) + bicw2 $0x8000,r2 # r2:r3 = dabs(y) + cmpw r0,r2 + jgeq ordered + movq r0,r4 + movq r2,r0 + movq r4,r2 # force y's exp <= x's exp +ordered: + bicw3 $0x7f,r0,r6 # r6 = exponent(x) + bias(129) + jeql retsb # if x = y = 0 then cdabs(x,y) = 0 + subw2 $0x4780,r6 # r6 = exponent(x) - 14 + subw2 r6,r0 # 2^14 <= scaled x < 2^15 + bitw $0xff80,r2 + jeql retsb # if y = 0 return dabs(x) + subw2 r6,r2 + cmpw $0x3780,r2 # if scaled y < 2^-18 + jgtr retsb # return dabs(x) + emodd r0,$0,r0,r4,r0 # r4 + r0:1 = scaled x^2 + emodd r2,$0,r2,r5,r2 # r5 + r2:3 = scaled y^2 + addd2 r2,r0 + addl2 r5,r4 + cvtld r4,r2 + addd2 r2,r0 # r0:1 = scaled x^2 + y^2 + jmp libm$dsqrt_r5 # r0:1 = dsqrt(x^2+y^2)/2^r6 +retsb: + rsb # error < 0.86 ulp diff --git a/lib/libm/arch/vax/n_cbrt.S b/lib/libm/arch/vax/n_cbrt.S new file mode 100644 index 00000000000..37fc12cd82a --- /dev/null +++ b/lib/libm/arch/vax/n_cbrt.S @@ -0,0 +1,101 @@ +/* $NetBSD: n_cbrt.S,v 1.1 1995/10/10 23:40:26 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)cbrt.s 8.1 (Berkeley) 6/4/93 + */ + +/* + * double cbrt(double arg) + * W. Kahan, 10/13/80. revised 1/13/84 for keeping sign symmetry + * error check by E LeBlanc, 8/18/82 + * Revised and tested by K.C. Ng, 5/2/85 + * Max error less than 0.667 ulps (unit in the last places) + */ + + .globl _cbrt + .globl _d_cbrt + .globl _dcbrt_ + .text + .align 1 + +_cbrt: +_d_cbrt: + .word 0x00fc # save r2 to r7 + movq 4(ap),r0 # r0 = argument x + jmp dcbrt2 +_dcbrt_: + .word 0x00fc # save r2 to r7 + movq *4(ap),r0 # r0 = argument x + +dcbrt2: bicw3 $0x807f,r0,r2 # biased exponent of x + jeql return # dcbrt(0)=0 dcbrt(res)=res. operand + bicw3 $0x7fff,r0,ap # ap has sign(x) + xorw2 ap,r0 # r0 is abs(x) + movl r0,r2 # r2 has abs(x) + rotl $16,r2,r2 # r2 = |x| with bits unscrambled + divl2 $3,r2 # rough dcbrt with bias/3 + addl2 B,r2 # restore bias, diminish fraction + rotl $16,r2,r2 # r2=|q|=|dcbrt| to 5 bits + mulf3 r2,r2,r3 # r3 =qq + divf2 r0,r3 # r3 = qq/x + mulf2 r2,r3 + addf2 C,r3 # r3 = s = C + qqq/x + divf3 r3,D,r4 # r4 = D/s + addf2 E,r4 + addf2 r4,r3 # r3 = s + E + D/s + divf3 r3,F,r3 # r3 = F / (s + E + D/s) + addf2 G,r3 # r3 = G + F / (s + E + D/s) + mulf2 r3,r2 # r2 = qr3 = new q to 23 bits + clrl r3 # r2:r3 = q as double float + muld3 r2,r2,r4 # r4:r5 = qq exactly + divd2 r4,r0 # r0:r1 = x/(q*q) rounded + subd3 r2,r0,r6 # r6:r7 = x/(q*q) - q exactly + movq r2,r4 # r4:r5 = q + addw2 $0x80,r4 # r4:r5 = 2 * q + addd2 r0,r4 # r4:r5 = 2*q + x/(q*q) + divd2 r4,r6 # r6:r7 = (x/(q*q)-q)/(2*q+x/(q*q)) + muld2 r2,r6 # r6:r7 = q*(x/(q*q)-q)/(2*q+x/(q*q)) + addd3 r6,r2,r0 # r0:r1 = q + r6:r7 + bisw2 ap,r0 # restore the sign bit +return: + ret # error less than 0.667 ulps + +.data +.align 2 +B : .long 721142941 # (86-0.03306235651)*(2^23) +C : .float 0f0.5428571429 # 19/35 +D : .float 0f-0.7053061224 # -864/1225 +E : .float 0f1.414285714 # 99/70 +F : .float 0f1.607142857 # 45/28 +G : .float 0f0.3571428571 # 5/14 + diff --git a/lib/libm/arch/vax/n_infnan.S b/lib/libm/arch/vax/n_infnan.S new file mode 100644 index 00000000000..d6f8adbbf6b --- /dev/null +++ b/lib/libm/arch/vax/n_infnan.S @@ -0,0 +1,62 @@ +/* $NetBSD: n_infnan.S,v 1.1 1995/10/10 23:40:27 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)infnan.s 8.1 (Berkeley) 6/4/93 + */ + .data + .align 2 +_sccsid: +.asciz "@(#)infnan.s 1.1 (Berkeley) 8/21/85; 8.1 (ucb.elefunt) 6/4/93" + +/* + * infnan(arg) int arg; + * where arg := EDOM if result is NaN + * := ERANGE if result is +INF + * := -ERANGE if result is -INF + * + * The Reserved Operand Fault is generated inside of this routine. + */ + .globl _infnan + .set EDOM,33 + .set ERANGE,34 + .text + .align 1 +_infnan: + .word 0x0 + cmpl 4(ap),$ERANGE + bneq 1f + movl $ERANGE,_errno + brb 2f +1: movl $EDOM,_errno +2: emodd $0,$0,$0x8000,r0,r0 # generates the reserved operand fault + ret diff --git a/lib/libm/arch/vax/n_sincos.S b/lib/libm/arch/vax/n_sincos.S new file mode 100644 index 00000000000..c2f268820b6 --- /dev/null +++ b/lib/libm/arch/vax/n_sincos.S @@ -0,0 +1,109 @@ +/* $NetBSD: n_sincos.S,v 1.1 1995/10/10 23:40:28 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)sincos.s 8.1 (Berkeley) 6/4/93 + */ + +/* + * This is the implementation of Peter Tang's double precision + * sine and cosine for the VAX using Bob Corbett's argument reduction. + * + * Notes: + * under 1,024,000 random arguments testing on [0,2*pi] + * sin() observed maximum error = 0.814 ulps + * cos() observed maximum error = 0.792 ulps + * + * double sin(arg) + * double arg; + * method: true range reduction to [-pi/4,pi/4], P. Tang & B. Corbett + * S. McDonald, April 4, 1985 + */ + + .globl _sin + .text + .align 1 + +_sin: .word 0xffc # save r2-r11 + movq 4(ap),r0 + bicw3 $0x807f,r0,r2 + beql 1f # if x is zero or reserved operand then return x +/* + * Save the PSL's IV & FU bits on the stack. + */ + movpsl r2 + bicw3 $0xff9f,r2,-(sp) +/* + * Clear the IV & FU bits. + */ + bicpsw $0x0060 +/* + * Entered by sine ; save 0 in r4 . + */ + jsb libm$argred + movl $0,r4 + jsb libm$sincos + bispsw (sp)+ +1: ret + +/* + * double cos(arg) + * double arg; + * method: true range reduction to [-pi/4,pi/4], P. Tang & B. Corbett + * S. McDonald, April 4, 1985 + */ + .globl _cos + .text + .align 1 + +_cos: .word 0xffc # save r2-r11 + movq 4(ap),r0 + bicw3 $0x7f,r0,r2 + cmpw $0x8000,r2 + beql 1f # if x is reserved operand then return x +/* + * Save the PSL's IV & FU bits on the stack. + */ + movpsl r2 + bicw3 $0xff9f,r2,-(sp) +/* + * Clear the IV & FU bits. + */ + bicpsw $0x0060 +/* + * Entered by cosine ; save 1 in r4 . + */ + jsb libm$argred + movl $1,r4 + jsb libm$sincos + bispsw (sp)+ +1: ret diff --git a/lib/libm/arch/vax/n_sqrt.S b/lib/libm/arch/vax/n_sqrt.S new file mode 100644 index 00000000000..ec3269c0f3d --- /dev/null +++ b/lib/libm/arch/vax/n_sqrt.S @@ -0,0 +1,121 @@ +/* $NetBSD: n_sqrt.S,v 1.1 1995/10/10 23:40:29 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)sqrt.s 8.1 (Berkeley) 6/4/93 + */ + +/* + * double sqrt(arg) revised August 15,1982 + * double arg; + * if(arg<0.0) { _errno = EDOM; return(<a reserved operand>); } + * if arg is a reserved operand it is returned as it is + * W. Kahan's magic square root + * coded by Heidi Stettner and revised by Emile LeBlanc 8/18/82 + * + * entry points:_d_sqrt address of double arg is on the stack + * _sqrt double arg is on the stack + */ + .text + .align 1 + .globl _sqrt + .globl _d_sqrt + .globl libm$dsqrt_r5 + .set EDOM,33 + +_d_sqrt: + .word 0x003c # save r5,r4,r3,r2 + movq *4(ap),r0 + jmp dsqrt2 +_sqrt: + .word 0x003c # save r5,r4,r3,r2 + movq 4(ap),r0 +dsqrt2: bicw3 $0x807f,r0,r2 # check exponent of input + jeql noexp # biased exponent is zero -> 0.0 or reserved + bsbb libm$dsqrt_r5 +noexp: ret + +/* **************************** internal procedure */ + +libm$dsqrt_r5: /* ENTRY POINT FOR cdabs and cdsqrt */ + /* returns double square root scaled by */ + /* 2^r6 */ + + movd r0,r4 + jleq nonpos # argument is not positive + movzwl r4,r2 + ashl $-1,r2,r0 + addw2 $0x203c,r0 # r0 has magic initial approximation +/* + * Do two steps of Heron's rule + * ((arg/guess) + guess) / 2 = better guess + */ + divf3 r0,r4,r2 + addf2 r2,r0 + subw2 $0x80,r0 # divide by two + + divf3 r0,r4,r2 + addf2 r2,r0 + subw2 $0x80,r0 # divide by two + +/* Scale argument and approximation to prevent over/underflow */ + + bicw3 $0x807f,r4,r1 + subw2 $0x4080,r1 # r1 contains scaling factor + subw2 r1,r4 + movl r0,r2 + subw2 r1,r2 + +/* Cubic step + * + * b = a + 2*a*(n-a*a)/(n+3*a*a) where b is better approximation, + * a is approximation, and n is the original argument. + * (let s be scale factor in the following comments) + */ + clrl r1 + clrl r3 + muld2 r0,r2 # r2:r3 = a*a/s + subd2 r2,r4 # r4:r5 = n/s - a*a/s + addw2 $0x100,r2 # r2:r3 = 4*a*a/s + addd2 r4,r2 # r2:r3 = n/s + 3*a*a/s + muld2 r0,r4 # r4:r5 = a*n/s - a*a*a/s + divd2 r2,r4 # r4:r5 = a*(n-a*a)/(n+3*a*a) + addw2 $0x80,r4 # r4:r5 = 2*a*(n-a*a)/(n+3*a*a) + addd2 r4,r0 # r0:r1 = a + 2*a*(n-a*a)/(n+3*a*a) + rsb # DONE! +nonpos: + jneq negarg + ret # argument and root are zero +negarg: + pushl $EDOM + calls $1,_infnan # generate the reserved op fault + ret diff --git a/lib/libm/arch/vax/n_support.S b/lib/libm/arch/vax/n_support.S new file mode 100644 index 00000000000..341d353498e --- /dev/null +++ b/lib/libm/arch/vax/n_support.S @@ -0,0 +1,230 @@ +/* $NetBSD: n_support.S,v 1.1 1995/10/10 23:40:30 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)support.s 8.1 (Berkeley) 6/4/93 + */ + .data + .align 2 +_sccsid: +.asciz "@(#)support.s 1.3 (Berkeley) 8/21/85; 8.1 (ucb.elefunt) 6/4/93" + +/* + * copysign(x,y), + * logb(x), + * scalb(x,N), + * finite(x), + * drem(x,y), + * Coded in vax assembly language by K.C. Ng, 3/14/85. + * Revised by K.C. Ng on 4/9/85. + */ + +/* + * double copysign(x,y) + * double x,y; + */ + .globl _copysign + .text + .align 1 +_copysign: + .word 0x4 + movq 4(ap),r0 # load x into r0 + bicw3 $0x807f,r0,r2 # mask off the exponent of x + beql Lz # if zero or reserved op then return x + bicw3 $0x7fff,12(ap),r2 # copy the sign bit of y into r2 + bicw2 $0x8000,r0 # replace x by |x| + bisw2 r2,r0 # copy the sign bit of y to x +Lz: ret + +/* + * double logb(x) + * double x; + */ + .globl _logb + .text + .align 1 +_logb: + .word 0x0 + bicl3 $0xffff807f,4(ap),r0 # mask off the exponent of x + beql Ln + ashl $-7,r0,r0 # get the bias exponent + subl2 $129,r0 # get the unbias exponent + cvtld r0,r0 # return the answer in double + ret +Ln: movq 4(ap),r0 # r0:1 = x (zero or reserved op) + bneq 1f # simply return if reserved op + movq $0x0000fe00ffffcfff,r0 # -2147483647.0 +1: ret + +/* + * long finite(x) + * double x; + */ + .globl _finite + .text + .align 1 +_finite: + .word 0x0000 + bicw3 $0x7f,4(ap),r0 # mask off the mantissa + cmpw r0,$0x8000 # to see if x is the reserved op + beql 1f # if so, return FALSE (0) + movl $1,r0 # else return TRUE (1) + ret +1: clrl r0 + ret + +/* + * double scalb(x,N) + * double x; double N; + */ + .globl _scalb + .set ERANGE,34 + .text + .align 1 +_scalb: + .word 0x3c + movq 4(ap),r0 + bicl3 $0xffff807f,r0,r3 + beql ret1 # 0 or reserved operand + movq 12(ap),r4 + cvtdl r4, r2 + cmpl r2,$0x12c + bgeq ovfl + cmpl r2,$-0x12c + bleq unfl + ashl $7,r2,r2 + addl2 r2,r3 + bleq unfl + cmpl r3,$0x8000 + bgeq ovfl + addl2 r2,r0 + ret +ovfl: pushl $ERANGE + calls $1,_infnan # if it returns + bicw3 $0x7fff,4(ap),r2 # get the sign of input arg + bisw2 r2,r0 # re-attach the sign to r0/1 + ret +unfl: movq $0,r0 +ret1: ret + +/* + * DREM(X,Y) + * RETURN X REM Y =X-N*Y, N=[X/Y] ROUNDED (ROUNDED TO EVEN IN THE HALF WAY CASE) + * DOUBLE PRECISION (VAX D format 56 bits) + * CODED IN VAX ASSEMBLY LANGUAGE BY K.C. NG, 4/8/85. + */ + .globl _drem + .set EDOM,33 + .text + .align 1 +_drem: + .word 0xffc + subl2 $12,sp + movq 4(ap),r0 #r0=x + movq 12(ap),r2 #r2=y + jeql Rop #if y=0 then generate reserved op fault + bicw3 $0x007f,r0,r4 #check if x is Rop + cmpw r4,$0x8000 + jeql Ret #if x is Rop then return Rop + bicl3 $0x007f,r2,r4 #check if y is Rop + cmpw r4,$0x8000 + jeql Ret #if y is Rop then return Rop + bicw2 $0x8000,r2 #y := |y| + movw $0,-4(fp) #-4(fp) = nx := 0 + cmpw r2,$0x1c80 #yexp ? 57 + bgtr C1 #if yexp > 57 goto C1 + addw2 $0x1c80,r2 #scale up y by 2**57 + movw $0x1c80,-4(fp) #nx := 57 (exponent field) +C1: + movw -4(fp),-8(fp) #-8(fp) = nf := nx + bicw3 $0x7fff,r0,-12(fp) #-12(fp) = sign of x + bicw2 $0x8000,r0 #x := |x| + movq r2,r10 #y1 := y + bicl2 $0xffff07ff,r11 #clear the last 27 bits of y1 +loop: + cmpd r0,r2 #x ? y + bleq E1 #if x <= y goto E1 + /* begin argument reduction */ + movq r2,r4 #t =y + movq r10,r6 #t1=y1 + bicw3 $0x807f,r0,r8 #xexp= exponent of x + bicw3 $0x807f,r2,r9 #yexp= exponent fo y + subw2 r9,r8 #xexp-yexp + subw2 $0x0c80,r8 #k=xexp-yexp-25(exponent bit field) + blss C2 #if k<0 goto C2 + addw2 r8,r4 #t +=k + addw2 r8,r6 #t1+=k, scale up t and t1 +C2: + divd3 r4,r0,r8 #x/t + cvtdl r8,r8 #n=[x/t] truncated + cvtld r8,r8 #float(n) + subd2 r6,r4 #t:=t-t1 + muld2 r8,r4 #n*(t-t1) + muld2 r8,r6 #n*t1 + subd2 r6,r0 #x-n*t1 + subd2 r4,r0 #(x-n*t1)-n*(t-t1) + brb loop +E1: + movw -4(fp),r6 #r6=nx + beql C3 #if nx=0 goto C3 + addw2 r6,r0 #x:=x*2**57 scale up x by nx + movw $0,-4(fp) #clear nx + brb loop +C3: + movq r2,r4 #r4 = y + subw2 $0x80,r4 #r4 = y/2 + cmpd r0,r4 #x:y/2 + blss E2 #if x < y/2 goto E2 + bgtr C4 #if x > y/2 goto C4 + cvtdl r8,r8 #ifix(float(n)) + blbc r8,E2 #if the last bit is zero, goto E2 +C4: + subd2 r2,r0 #x-y +E2: + xorw2 -12(fp),r0 #x^sign (exclusive or) + movw -8(fp),r6 #r6=nf + bicw3 $0x807f,r0,r8 #r8=exponent of x + bicw2 $0x7f80,r0 #clear the exponent of x + subw2 r6,r8 #r8=xexp-nf + bgtr C5 #if xexp-nf is positive goto C5 + movw $0,r8 #clear r8 + movq $0,r0 #x underflow to zero +C5: + bisw2 r8,r0 /* put r8 into x's exponent field */ + ret +Rop: #Reserved operand + pushl $EDOM + calls $1,_infnan #generate reserved op fault + ret +Ret: + movq $0x8000,r0 #propagate reserved op + ret diff --git a/lib/libm/arch/vax/n_tan.S b/lib/libm/arch/vax/n_tan.S new file mode 100644 index 00000000000..f5099856681 --- /dev/null +++ b/lib/libm/arch/vax/n_tan.S @@ -0,0 +1,95 @@ +/* $NetBSD: n_tan.S,v 1.1 1995/10/10 23:40:31 ragge Exp $ */ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)tan.s 8.1 (Berkeley) 6/4/93 + */ + +/* This is the implementation of Peter Tang's double precision + * tangent for the VAX using Bob Corbett's argument reduction. + * + * Notes: + * under 1,024,000 random arguments testing on [0,2*pi] + * tan() observed maximum error = 2.15 ulps + * + * double tan(arg) + * double arg; + * method: true range reduction to [-pi/4,pi/4], P. Tang & B. Corbett + * S. McDonald, April 4, 1985 + */ + .globl _tan + .text + .align 1 + +_tan: .word 0xffc # save r2-r11 + movq 4(ap),r0 + bicw3 $0x807f,r0,r2 + beql 1f # if x is zero or reserved operand then return x +/* + * Save the PSL's IV & FU bits on the stack. + */ + movpsl r2 + bicw3 $0xff9f,r2,-(sp) +/* + * Clear the IV & FU bits. + */ + bicpsw $0x0060 + jsb libm$argred +/* + * At this point, + * r0 contains the quadrant number, 0, 1, 2, or 3; + * r2/r1 contains the reduced argument as a D-format number; + * r3 contains a F-format extension to the reduced argument; + * + * Save r3/r0 so that we can call cosine after calling sine. + */ + movq r2,-(sp) + movq r0,-(sp) +/* + * Call sine. r4 = 0 implies sine. + */ + movl $0,r4 + jsb libm$sincos +/* + * Save sin(x) in r11/r10 . + */ + movd r0,r10 +/* + * Call cosine. r4 = 1 implies cosine. + */ + movq (sp)+,r0 + movq (sp)+,r2 + movl $1,r4 + jsb libm$sincos + divd3 r0,r10,r0 + bispsw (sp)+ +1: ret |