1 files changed, 149 insertions, 0 deletions
diff --git a/libc/bcc/bcc_i386.c b/libc/bcc/bcc_i386.c
new file mode 100644
index 0000000..d994628
--- /dev/null
+++ b/libc/bcc/bcc_i386.c
@@ -0,0 +1,149 @@
+/************************************************************************/
+/* This file contains the BCC compiler helper functions */
+/* Support for 386 integer arithmetic 
+ * __divsi3.o __idiv.o __idivu.o __imod.o __imodu.o __imul.o
+ * __isl.o __isr.o __isru.o
+ */
+
+#ifdef __AS386_32__
+#asm
+	.text	! This is common to all.
+	.align	4
+#endasm
+
+#ifdef L___divsi3
+#asm
+! divsi3.s
+	.globl ___divsi3
+ ___divsi3:
+	push	edx
+	mov	eax,[esp+4+4]
+	cdq
+	idiv	[esp+4+4+4]
+	pop	edx
+	ret
+
+	.globl ___udivsi3
+	.text
+	.align	4
+
+ ___udivsi3:
+	push	edx
+	mov	eax,[esp+4+4]
+	sub	edx,edx
+	div	[esp+4+4+4]
+	pop	edx
+	ret
+#endasm
+#endif
+
+#ifdef L___idiv
+#asm
+! idiv.s
+! idiv_ doesn`t preserve edx (returns remainder in it)
+
+	.globl idiv_
+idiv_:
+	cdq
+	idiv	ebx
+	ret
+#endasm
+#endif
+
+#ifdef L___idivu
+#asm
+! idivu.s
+! idiv_u doesn`t preserve edx (returns remainder in it)
+
+	.globl idiv_u
+idiv_u:
+	xor	edx,edx
+	div	ebx
+	ret
+#endasm
+#endif
+
+#ifdef L___imod
+#asm
+! imod.s
+! imod doesn`t preserve edx (returns quotient in it)
+
+	.globl imod
+imod:
+	cdq
+	idiv	ebx
+	mov	eax,edx		! instruction queue full so xchg slower
+	ret
+#endasm
+#endif
+
+#ifdef L___imodu
+#asm
+! imodu.s
+! imodu doesn`t preserve edx (returns quotient in it)
+
+	.globl imodu
+imodu:
+	xor	edx,edx
+	div	ebx
+	mov	eax,edx		! instruction queue full so xchg slower
+	ret
+#endasm
+#endif
+
+#ifdef L___imul
+#asm
+! imul.s
+! imul_, imul_u don`t preserve edx
+
+	.globl imul_
+	.globl imul_u
+imul_:
+imul_u:
+	imul	ebx
+	ret
+#endasm
+#endif
+
+#ifdef L___isl
+#asm
+! isl.s
+! isl, islu don`t preserve cl
+
+	.globl isl
+	.globl islu
+isl:
+islu:
+	mov	cl,bl
+	shl	eax,cl
+	ret
+#endasm
+#endif
+
+#ifdef L___isr
+#asm
+! isr.s
+! isr doesn`t preserve cl
+
+	.globl isr
+isr:
+	mov	cl,bl
+	sar	eax,cl
+	ret
+#endasm
+#endif
+
+#ifdef L___isru
+#asm
+! isru.s
+! isru doesn`t preserve cl
+
+	.globl isru
+isru:
+	mov	cl,bl
+	shr	eax,cl
+	ret
+#endasm
+#endif
+
+#endif