about summary refs log tree commit diff
path: root/sysdeps/i386/i586/submul_1.S
diff options
context:
space:
mode:
authorGreg McGary <greg@mcgary.org>2000-06-26 16:48:10 +0000
committerGreg McGary <greg@mcgary.org>2000-06-26 16:48:10 +0000
commit43c81906dbf4c2bf9f89a53a08f0e05c7adf4113 (patch)
tree38bb35b2f658b13039be094bc40b462e6ef61851 /sysdeps/i386/i586/submul_1.S
parent1e9bbdd87ff53843376322dcb61743dd1238eb8c (diff)
downloadglibc-43c81906dbf4c2bf9f89a53a08f0e05c7adf4113.tar.gz
glibc-43c81906dbf4c2bf9f89a53a08f0e05c7adf4113.tar.xz
glibc-43c81906dbf4c2bf9f89a53a08f0e05c7adf4113.zip
* sysdeps/i386/asm-syntax.h (R, MEM, MEM_DISP, MEM_INDEX,
INSN1, INSN2, TEXT, GLOBL): Remove macros. 
(ALIGN): Cleanup surrounding conditionals.
	* sysdeps/i386/addmul_1.S: Replace asm-syntax macros with gas syntax.
	Call ENTER/LEAVE macros.
	* sysdeps/i386/mul_1.S: Replace asm-syntax macros with gas syntax.
	* sysdeps/i386/submul_1.S: Likewise.

	* sysdeps/i386/i586/addmul_1.S: Replace asm-syntax macros with gas
	syntax.  Define & use symbolic argument stack offsets.  Call
	ENTER/LEAVE macros.
	* sysdeps/i386/i586/mul_1.S: Likewise.
	* sysdeps/i386/i586/submul_1.S: Likewise.
2000-06-26  Greg McGary  <greg@mcgary.org>

	* sysdeps/i386/asm-syntax.h (R, MEM, MEM_DISP, MEM_INDEX,
	INSN1, INSN2, TEXT, GLOBL): Remove macros.
	(ALIGN): Cleanup surrounding conditionals.

	* sysdeps/i386/addmul_1.S: Replace asm-syntax macros with gas syntax.
	Call ENTER/LEAVE macros.
	* sysdeps/i386/mul_1.S: Replace asm-syntax macros with gas syntax.
	* sysdeps/i386/submul_1.S: Likewise.

	* sysdeps/i386/i586/addmul_1.S: Replace asm-syntax macros with gas
	syntax.  Define & use symbolic argument stack offsets.  Call
	ENTER/LEAVE macros.
	* sysdeps/i386/i586/mul_1.S: Likewise.
	* sysdeps/i386/i586/submul_1.S: Likewise.
Diffstat (limited to 'sysdeps/i386/i586/submul_1.S')
-rw-r--r--sysdeps/i386/i586/submul_1.S84
1 files changed, 43 insertions, 41 deletions
diff --git a/sysdeps/i386/i586/submul_1.S b/sysdeps/i386/i586/submul_1.S
index 905ad19d7f..4cb2b5da92 100644
--- a/sysdeps/i386/i586/submul_1.S
+++ b/sysdeps/i386/i586/submul_1.S
@@ -1,6 +1,6 @@
 /* Pentium __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
    the result from a second limb vector.
-   Copyright (C) 1992, 94, 96, 97, 98 Free Software Foundation, Inc.
+   Copyright (C) 1992, 94, 96, 97, 98, 00 Free Software Foundation, Inc.
    This file is part of the GNU MP Library.
 
    The GNU MP Library is free software; you can redistribute it and/or modify
@@ -18,16 +18,15 @@
    the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
    MA 02111-1307, USA. */
 
-/*
-   INPUT PARAMETERS
-   res_ptr	(sp + 4)
-   s1_ptr	(sp + 8)
-   size		(sp + 12)
-   s2_limb	(sp + 16)
-*/
-
 #include "sysdep.h"
 #include "asm-syntax.h"
+#include "bp-asm.h"
+
+#define PARMS	LINKAGE+16	/* space for 4 saved regs */
+#define RES	PARMS
+#define S1	RES+PTR_SIZE
+#define SIZE	S1+PTR_SIZE
+#define S2LIMB	SIZE+4
 
 #define res_ptr edi
 #define s1_ptr esi
@@ -36,46 +35,49 @@
 
 	.text
 ENTRY(__mpn_submul_1)
-
-	INSN1(push,l	,R(edi))
-	INSN1(push,l	,R(esi))
-	INSN1(push,l	,R(ebx))
-	INSN1(push,l	,R(ebp))
-
-	INSN2(mov,l	,R(res_ptr),MEM_DISP(esp,20))
-	INSN2(mov,l	,R(s1_ptr),MEM_DISP(esp,24))
-	INSN2(mov,l	,R(size),MEM_DISP(esp,28))
-	INSN2(mov,l	,R(s2_limb),MEM_DISP(esp,32))
-
-	INSN2(lea,l	,R(res_ptr),MEM_INDEX(res_ptr,size,4))
-	INSN2(lea,l	,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
-	INSN1(neg,l	,R(size))
-	INSN2(xor,l	,R(ebx),R(ebx))
+	ENTER
+
+	pushl	%edi
+	pushl	%esi
+	pushl	%ebx
+	pushl	%ebp
+
+	movl	RES(%esp), %res_ptr
+	movl	S1(%esp), %s1_ptr
+	movl	SIZE(%esp), %size
+	movl	S2LIMB(%esp), %s2_limb
+
+	leal	(%res_ptr,%size,4), %res_ptr
+	leal	(%s1_ptr,%size,4), %s1_ptr
+	negl	%size
+	xorl	%ebx, %ebx
 	ALIGN (3)
 
-L(oop):	INSN2(adc,l	,R(ebx),$0)
-	INSN2(mov,l	,R(eax),MEM_INDEX(s1_ptr,size,4))
+L(oop):	adcl	$0, %ebx
+	movl	(%s1_ptr,%size,4), %eax
+
+	mull	%s2_limb
 
-	INSN1(mul,l	,R(s2_limb))
+	addl	%ebx, %eax
+	movl	(%res_ptr,%size,4), %ebx
 
-	INSN2(add,l	,R(eax),R(ebx))
-	INSN2(mov,l	,R(ebx),MEM_INDEX(res_ptr,size,4))
+	adcl	$0, %edx
+	subl	%eax, %ebx
 
-	INSN2(adc,l	,R(edx),$0)
-	INSN2(sub,l	,R(ebx),R(eax))
+	movl	%ebx, (%res_ptr,%size,4)
+	incl	%size
 
-	INSN2(mov,l	,MEM_INDEX(res_ptr,size,4),R(ebx))
-	INSN1(inc,l	,R(size))
+	movl	%edx, %ebx
+	jnz	L(oop)
 
-	INSN2(mov,l	,R(ebx),R(edx))
-	INSN1(jnz,	,L(oop))
+	adcl	$0, %ebx
+	movl	%ebx, %eax
+	popl	%ebp
+	popl	%ebx
+	popl	%esi
+	popl	%edi
 
-	INSN2(adc,l	,R(ebx),$0)
-	INSN2(mov,l	,R(eax),R(ebx))
-	INSN1(pop,l	,R(ebp))
-	INSN1(pop,l	,R(ebx))
-	INSN1(pop,l	,R(esi))
-	INSN1(pop,l	,R(edi))
+	LEAVE
 	ret
 #undef size
 END(__mpn_submul_1)