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/*
* OpenBSD/alpha machine-dependent thread macros
*
* $OpenBSD: uthread_machdep.h,v 1.4 1999/02/04 23:37:39 niklas Exp $
*/
/* save the floating point state of a thread */
#define _thread_machdep_save_float_state(thr) \
do { \
__asm__( \
"stt $f8, ( 0 * 8) + %0\n\tstt $f9, ( 1 * 8) + %0\n\t" \
"stt $f10, ( 2 * 8) + %0\n\tstt $f11, ( 3 * 8) + %0\n\t" \
"stt $f12, ( 4 * 8) + %0\n\tstt $f13, ( 5 * 8) + %0\n\t" \
"stt $f14, ( 6 * 8) + %0\n\tstt $f15, ( 7 * 8) + %0\n\t" \
"stt $f16, ( 8 * 8) + %0\n\tstt $f17, ( 9 * 8) + %0\n\t" \
"stt $f18, (10 * 8) + %0\n\tstt $f19, (11 * 8) + %0\n\t" \
"stt $f20, (12 * 8) + %0\n\tstt $f21, (13 * 8) + %0\n\t" \
"stt $f22, (14 * 8) + %0\n\tstt $f23, (15 * 8) + %0\n\t" \
"stt $f24, (16 * 8) + %0\n\tstt $f25, (17 * 8) + %0\n\t" \
"stt $f26, (18 * 8) + %0\n\tstt $f27, (19 * 8) + %0\n\t" \
"stt $f28, (20 * 8) + %0\n\tstt $f29, (21 * 8) + %0\n\t" \
"stt $f30, (22 * 8) + %0" \
: : "o" ((thr)->_machdep.saved_fp) : "memory"); \
} while(0)
/* restore the floating point state of a thread */
#define _thread_machdep_restore_float_state(thr) \
do { \
__asm__( \
"ldt $f8, ( 0 * 8) + %0\n\tldt $f9, ( 1 * 8) + %0\n\t" \
"ldt $f10, ( 2 * 8) + %0\n\tldt $f11, ( 3 * 8) + %0\n\t" \
"ldt $f12, ( 4 * 8) + %0\n\tldt $f13, ( 5 * 8) + %0\n\t" \
"ldt $f14, ( 6 * 8) + %0\n\tldt $f15, ( 7 * 8) + %0\n\t" \
"ldt $f16, ( 8 * 8) + %0\n\tldt $f17, ( 9 * 8) + %0\n\t" \
"ldt $f18, (10 * 8) + %0\n\tldt $f19, (11 * 8) + %0\n\t" \
"ldt $f20, (12 * 8) + %0\n\tldt $f21, (13 * 8) + %0\n\t" \
"ldt $f22, (14 * 8) + %0\n\tldt $f23, (15 * 8) + %0\n\t" \
"ldt $f24, (16 * 8) + %0\n\tldt $f25, (17 * 8) + %0\n\t" \
"ldt $f26, (18 * 8) + %0\n\tldt $f27, (19 * 8) + %0\n\t" \
"ldt $f28, (20 * 8) + %0\n\tldt $f29, (21 * 8) + %0\n\t" \
"ldt $f30, (22 * 8) + %0\n\t" \
: : "o" (thr->_machdep.saved_fp) : \
"$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15", \
"$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23", \
"$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30"); \
} while(0)
/* initialise the jmpbuf stack frame so it continues from entry */
#define _thread_machdep_thread_create(thr, entry, pattr) \
{ \
/* entry */ \
(thr)->saved_jmp_buf[2] = (long) entry; \
(thr)->saved_jmp_buf[4+R_RA] = 0; \
(thr)->saved_jmp_buf[4+R_T12] = (long) entry; \
/* stack */ \
(thr)->saved_jmp_buf[4 + R_SP] = (long) (thr)->stack \
+ (pattr)->stacksize_attr \
- sizeof(double); \
}
#define _thread_machdep_longjmp(a,v) _longjmp(a,v)
#define _thread_machdep_setjmp(a) _setjmp(a)
typedef jmp_buf _machdep_jmp_buf;
struct _machdep_struct {
char saved_fp[23 * 8];
};
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