Add {,u}{div,mod}si3 to libkern and to the kernel as well.

4 files changed, 195 insertions, 0 deletions

diff --git a/sys/lib/libkern/arch/m88k/divsi3.S b/sys/lib/libkern/arch/m88k/divsi3.S
new file mode 100644
index 00000000000..4a1a4f84cc5
--- /dev/null
+++ b/sys/lib/libkern/arch/m88k/divsi3.S
@@ -0,0 +1,61 @@
+/*	$OpenBSD: divsi3.S,v 1.1 2013/06/07 17:31:31 miod Exp $	*/
+
+/*
+ * Copyright (c) 2013 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#include <machine/asm.h>
+
+/*
+ * int __divsi3(int n, int d);
+ */
+
+ENTRY(__divsi3)
+	/* if divider is zero, trap */
+	bcnd	ne0, %r3, 1f
+	tb0	0, %r0, 503
+1:
+
+	bb1	31, %r2, 1f
+	bb1	31, %r3, 2f
+
+	/* both operands are positive */
+	jmp.n	%r1
+	 divu	%r2, %r2, %r3
+
+1:
+	bb1	31, %r3, 3f
+
+	/* r2 is negative, r3 is positive */
+	subu	%r4, %r0, %r2
+	divu	%r5, %r4, %r3
+	jmp.n	%r1
+	 subu	%r2, %r0, %r5
+
+2:
+	/* r2 is positive, r3 is negative */
+	subu	%r5, %r0, %r3
+	divu	%r4, %r2, %r5
+	jmp.n	%r1
+	 subu	%r2, %r0, %r4
+
+3:
+	/* both operands are negative */
+	subu	%r4, %r0, %r2
+	subu	%r5, %r0, %r3
+	jmp.n	%r1
+	 divu	%r2, %r4, %r5
+END(__divsi3)
diff --git a/sys/lib/libkern/arch/m88k/modsi3.S b/sys/lib/libkern/arch/m88k/modsi3.S
new file mode 100644
index 00000000000..eb72ca97024
--- /dev/null
+++ b/sys/lib/libkern/arch/m88k/modsi3.S
@@ -0,0 +1,64 @@
+/*	$OpenBSD: modsi3.S,v 1.1 2013/06/07 17:31:31 miod Exp $	*/
+
+/*
+ * Copyright (c) 2013 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#include <machine/asm.h>
+
+/*
+ * int __modsi3(int n, int d);
+ */
+
+ENTRY(__modsi3)
+	/* if divider is zero, trap */
+	bcnd	ne0, %r3, 1f
+	tb0	0, %r0, 503
+1:
+
+	bb1	31, %r2, 1f
+	bb1	31, %r3, 2f
+
+	/* both operands are positive */
+	divu	%r4, %r2, %r3
+9:
+	mul	%r5, %r4, %r3
+	jmp.n	%r1
+	 subu	%r2, %r2, %r5
+
+1:
+	bb1	31, %r3, 3f
+
+	/* r2 is negative, r3 is positive */
+	subu	%r4, %r0, %r2
+	divu	%r5, %r4, %r3
+	subu	%r4, %r0, %r5
+	br	9b
+
+2:
+	/* r2 is positive, r3 is negative */
+	subu	%r5, %r0, %r3
+	divu	%r4, %r2, %r5
+	subu	%r4, %r0, %r4
+	br	9b
+
+3:
+	/* both operands are negative */
+	subu	%r4, %r0, %r2
+	subu	%r5, %r0, %r3
+	divu	%r4, %r4, %r5
+	br	9b
+END(__modsi3)
diff --git a/sys/lib/libkern/arch/m88k/udivsi3.S b/sys/lib/libkern/arch/m88k/udivsi3.S
new file mode 100644
index 00000000000..96b8ab554a7
--- /dev/null
+++ b/sys/lib/libkern/arch/m88k/udivsi3.S
@@ -0,0 +1,34 @@
+/*	$OpenBSD: udivsi3.S,v 1.1 2013/06/07 17:31:31 miod Exp $	*/
+
+/*
+ * Copyright (c) 2013 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#include <machine/asm.h>
+
+/*
+ * uint __udivsi3(uint n, uint d);
+ */
+
+ENTRY(__udivsi3)
+	/* if divider is zero, trap */
+	bcnd	ne0, %r3, 1f
+	tb0	0, %r0, 503
+1:
+
+	jmp.n	%r1
+	 divu	%r2, %r2, %r3
+END(__udivsi3)
diff --git a/sys/lib/libkern/arch/m88k/umodsi3.S b/sys/lib/libkern/arch/m88k/umodsi3.S
new file mode 100644
index 00000000000..c23b20decc7
--- /dev/null
+++ b/sys/lib/libkern/arch/m88k/umodsi3.S
@@ -0,0 +1,36 @@
+/*	$OpenBSD: umodsi3.S,v 1.1 2013/06/07 17:31:31 miod Exp $	*/
+
+/*
+ * Copyright (c) 2013 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#include <machine/asm.h>
+
+/*
+ * uint __umodsi3(uint n, uint d);
+ */
+
+ENTRY(__umodsi3)
+	/* if divider is zero, trap */
+	bcnd	ne0, %r3, 1f
+	tb0	0, %r0, 503
+1:
+
+	divu	%r4, %r2, %r3
+	mulu	%r5, %r4, %r3
+	jmp.n	%r1
+	 subu	%r2, %r2, %r5
+END(__umodsi3)