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-rw-r--r--sysdeps/i386/i586/add_n.S29
-rw-r--r--sysdeps/i386/i586/lshift.S33
-rw-r--r--sysdeps/i386/i586/memcpy.S39
-rw-r--r--sysdeps/i386/i586/memset.S41
-rw-r--r--sysdeps/i386/i586/rshift.S33
-rw-r--r--sysdeps/i386/i586/strchr.S24
-rw-r--r--sysdeps/i386/i586/strcpy.S23
-rw-r--r--sysdeps/i386/i586/strlen.S17
-rw-r--r--sysdeps/i386/i586/sub_n.S29
9 files changed, 161 insertions, 107 deletions
diff --git a/sysdeps/i386/i586/add_n.S b/sysdeps/i386/i586/add_n.S
index 8b4130b..9bea31b 100644
--- a/sysdeps/i386/i586/add_n.S
+++ b/sysdeps/i386/i586/add_n.S
@@ -1,6 +1,6 @@
/* Pentium __mpn_add_n -- Add two limb vectors of the same length > 0 and store
sum in a third limb vector.
- Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
+ Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 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
@@ -18,28 +18,29 @@
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)
- s2_ptr (sp + 12)
- size (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 S2 S1+PTR_SIZE
+#define SIZE S2+PTR_SIZE
.text
ENTRY(__mpn_add_n)
+ ENTER
+
pushl %edi
pushl %esi
pushl %ebx
pushl %ebp
- movl 20(%esp),%edi /* res_ptr */
- movl 24(%esp),%esi /* s1_ptr */
- movl 28(%esp),%ebp /* s2_ptr */
- movl 32(%esp),%ecx /* size */
+ movl RES(%esp),%edi
+ movl S1(%esp),%esi
+ movl S2(%esp),%ebp
+ movl SIZE(%esp),%ecx
movl (%ebp),%ebx
@@ -123,5 +124,7 @@ L(end2):
popl %ebx
popl %esi
popl %edi
+
+ LEAVE
ret
END(__mpn_add_n)
diff --git a/sysdeps/i386/i586/lshift.S b/sysdeps/i386/i586/lshift.S
index 22dc03e..d3f0da0 100644
--- a/sysdeps/i386/i586/lshift.S
+++ b/sysdeps/i386/i586/lshift.S
@@ -1,5 +1,5 @@
/* Pentium optimized __mpn_lshift --
- Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
+ Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or modify
@@ -17,28 +17,29 @@
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
-/*
- INPUT PARAMETERS
- res_ptr (sp + 4)
- s_ptr (sp + 8)
- size (sp + 12)
- cnt (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 S RES+PTR_SIZE
+#define SIZE S+PTR_SIZE
+#define CNT SIZE+4
-.text
+ .text
ENTRY(__mpn_lshift)
+ ENTER
+
pushl %edi
pushl %esi
pushl %ebx
pushl %ebp
- movl 20(%esp),%edi /* res_ptr */
- movl 24(%esp),%esi /* s_ptr */
- movl 28(%esp),%ebp /* size */
- movl 32(%esp),%ecx /* cnt */
+ movl RES(%esp),%edi
+ movl S(%esp),%esi
+ movl SIZE(%esp),%ebp
+ movl CNT(%esp),%ecx
/* We can use faster code for shift-by-1 under certain conditions. */
cmp $1,%ecx
@@ -127,6 +128,8 @@ L(end2):
popl %ebx
popl %esi
popl %edi
+
+ LEAVE
ret
/* We loop from least significant end of the arrays, which is only
@@ -216,5 +219,7 @@ L(L1): movl %edx,(%edi) /* store last limb */
popl %ebx
popl %esi
popl %edi
+
+ LEAVE
ret
END(__mpn_lshift)
diff --git a/sysdeps/i386/i586/memcpy.S b/sysdeps/i386/i586/memcpy.S
index 9116c8d..82d5e79 100644
--- a/sysdeps/i386/i586/memcpy.S
+++ b/sysdeps/i386/i586/memcpy.S
@@ -1,5 +1,5 @@
/* Highly optimized version for i586.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -20,23 +20,31 @@
#include <sysdep.h>
#include "asm-syntax.h"
+#include "bp-asm.h"
-/*
- INPUT PARAMETERS:
- dst (sp + 4)
- src (sp + 8)
- len (sp + 12)
-*/
+/* BEWARE: `#ifdef memset' means that memset is redefined as `bzero' */
+#define BCOPY_P (defined memcpy)
+#define PARMS LINKAGE+8 /* space for 2 saved regs */
+#if BCOPY_P
+# define DEST PARMS
+#else
+# define RTN PARMS
+# define DEST RTN+RTN_SIZE
+#endif
+#define SRC DEST+PTR_SIZE
+#define LEN SRC+PTR_SIZE
.text
ENTRY (memcpy)
+ ENTER
+
pushl %edi
pushl %esi
- movl 12(%esp), %edi /* dst */
- movl 16(%esp), %esi /* src */
- movl 20(%esp), %ecx /* len */
+ movl DEST(%esp), %edi
+ movl SRC(%esp), %esi
+ movl LEN(%esp), %ecx
movl %edi, %eax
/* We need this in any case. */
@@ -91,18 +99,23 @@ L(3): movl 28(%edi), %edx
/* Correct extra loop counter modification. */
L(2): addl $32, %ecx
-#ifndef memcpy
- movl 12(%esp), %eax /* dst */
+#if !BCOPY_P
+ movl DEST(%esp), %eax
#endif
L(1): rep; movsb
-#ifdef memcpy
+#if BCOPY_P
movl %edi, %eax
#endif
popl %esi
popl %edi
+ LEAVE
+#if BCOPY_P
ret
+#else
+ RET_PTR
+#endif
END (memcpy)
diff --git a/sysdeps/i386/i586/memset.S b/sysdeps/i386/i586/memset.S
index 01bed35..8b292e9 100644
--- a/sysdeps/i386/i586/memset.S
+++ b/sysdeps/i386/i586/memset.S
@@ -1,6 +1,6 @@
/* memset/bzero -- set memory area to CH/0
Highly optimized version for ix86, x>=5.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Torbjorn Granlund, <tege@matematik.su.se>
@@ -21,27 +21,33 @@
#include <sysdep.h>
#include "asm-syntax.h"
+#include "bp-asm.h"
-/*
- INPUT PARAMETERS:
- (memset) (bzero)
- dst (sp + 4) dst (sp + 4)
- ch (sp + 8) len (sp + 8)
- len (sp + 12)
-*/
+/* BEWARE: `#ifdef memset' means that memset is redefined as `bzero' */
+#define BZERO_P (defined memset)
+#define PARMS LINKAGE+4 /* space for 1 saved reg */
+#define RTN PARMS
+#define DEST RTN+RTN_SIZE
+#if BZERO_P
+# define LEN DEST+PTR_SIZE
+#else
+# define CHR DEST+PTR_SIZE
+# define LEN CHR+4
+#endif
.text
ENTRY (memset)
+ ENTER
+
pushl %edi
- movl 8(%esp), %edi /* destination pointer */
-#ifdef memset
+ movl DEST(%esp), %edi
+ movl LEN(%esp), %edx
+#if BZERO_P
xorl %eax, %eax /* we fill with 0 */
- movl 12(%esp), %edx /* size (in 8-bit words) */
#else
- movb 12(%esp), %al /* use CH to fill */
- movl 16(%esp), %edx /* size (in 8-bit words) */
+ movb CHR(%esp), %al
movb %al, %ah
movl %eax, %ecx
@@ -93,11 +99,16 @@ L(2): shrl $2, %ecx /* convert byte count to longword count */
rep
stosb
+#if !BZERO_P
/* Load result (only if used as memset). */
-#ifndef memset
- movl 8(%esp), %eax
+ movl DEST(%esp), %eax
#endif
popl %edi
+ LEAVE
+#if BZERO_P
ret
+#else
+ RET_PTR
+#endif
END (memset)
diff --git a/sysdeps/i386/i586/rshift.S b/sysdeps/i386/i586/rshift.S
index 64e4047..2395446 100644
--- a/sysdeps/i386/i586/rshift.S
+++ b/sysdeps/i386/i586/rshift.S
@@ -1,5 +1,5 @@
/* Pentium optimized __mpn_rshift --
- Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
+ Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 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
@@ -17,28 +17,29 @@
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
-/*
- INPUT PARAMETERS
- res_ptr (sp + 4)
- s_ptr (sp + 8)
- size (sp + 12)
- cnt (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 S RES+PTR_SIZE
+#define SIZE S+PTR_SIZE
+#define CNT SIZE+4
-.text
+ .text
ENTRY(__mpn_rshift)
+ ENTER
+
pushl %edi
pushl %esi
pushl %ebx
pushl %ebp
- movl 20(%esp),%edi /* res_ptr */
- movl 24(%esp),%esi /* s_ptr */
- movl 28(%esp),%ebp /* size */
- movl 32(%esp),%ecx /* cnt */
+ movl RES(%esp),%edi
+ movl S(%esp),%esi
+ movl SIZE(%esp),%ebp
+ movl CNT(%esp),%ecx
/* We can use faster code for shift-by-1 under certain conditions. */
cmp $1,%ecx
@@ -124,6 +125,8 @@ L(end2):
popl %ebx
popl %esi
popl %edi
+
+ LEAVE
ret
/* We loop from least significant end of the arrays, which is only
@@ -216,5 +219,7 @@ L(L1): movl %edx,(%edi) /* store last limb */
popl %ebx
popl %esi
popl %edi
+
+ LEAVE
ret
END(__mpn_rshift)
diff --git a/sysdeps/i386/i586/strchr.S b/sysdeps/i386/i586/strchr.S
index e351853..bf351f6 100644
--- a/sysdeps/i386/i586/strchr.S
+++ b/sysdeps/i386/i586/strchr.S
@@ -1,6 +1,6 @@
/* Find character CH in a NUL terminated string.
Highly optimized version for ix85, x>=5.
- Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
@@ -21,6 +21,7 @@
#include <sysdep.h>
#include "asm-syntax.h"
+#include "bp-asm.h"
/* This version is especially optimized for the i586 (and following?)
processors. This is mainly done by using the two pipelines. The
@@ -35,22 +36,23 @@
/* The magic value which is used throughout in the whole code. */
#define magic 0xfefefeff
-/*
- INPUT PARAMETERS:
- str (sp + 4)
- ch (sp + 8)
-*/
+#define PARMS LINKAGE+16 /* space for 4 saved regs */
+#define RTN PARMS
+#define STR RTN+RTN_SIZE
+#define CHR STR+PTR_SIZE
.text
ENTRY (strchr)
+ ENTER
+
pushl %edi /* Save callee-safe registers. */
pushl %esi
pushl %ebx
pushl %ebp
- movl 20(%esp), %eax /* get string pointer */
- movl 24(%esp), %edx /* get character we are looking for */
+ movl STR(%esp), %eax
+ movl CHR(%esp), %edx
movl %eax, %edi /* duplicate string pointer for later */
xorl %ecx, %ecx /* clear %ecx */
@@ -283,7 +285,8 @@ L(2): popl %ebp /* restore saved registers */
popl %esi
popl %edi
- ret
+ LEAVE
+ RET_PTR
/* We know there is a NUL byte in the word. But we have to test
whether there is an C byte before it in the word. */
@@ -326,7 +329,8 @@ L(3): xorl %eax, %eax /* set return value = NULL */
popl %esi
popl %edi
- ret
+ LEAVE
+ RET_PTR
END (strchr)
#undef index
diff --git a/sysdeps/i386/i586/strcpy.S b/sysdeps/i386/i586/strcpy.S
index 7f89a2c..a48fbb6 100644
--- a/sysdeps/i386/i586/strcpy.S
+++ b/sysdeps/i386/i586/strcpy.S
@@ -1,5 +1,5 @@
/* strcpy/stpcpy implementation for i586.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -20,6 +20,12 @@
#include <sysdep.h>
#include "asm-syntax.h"
+#include "bp-asm.h"
+
+#define PARMS LINKAGE+12 /* space for 3 saved regs */
+#define RTN PARMS
+#define DEST RTN+RTN_SIZE
+#define SRC DEST+PTR_SIZE
#ifndef USE_AS_STPCPY
# define STRCPY strcpy
@@ -29,12 +35,14 @@
.text
ENTRY(STRCPY)
+ ENTER
+
pushl %edi
pushl %esi
pushl %ebx
- movl 16(%esp), %edi
- movl 20(%esp), %esi
+ movl DEST(%esp), %edi
+ movl SRC(%esp), %esi
xorl %eax, %eax
leal -1(%esi), %ecx
@@ -136,12 +144,13 @@ L(end): movb %ah, (%edi)
L(end2):
#ifdef USE_AS_STPCPY
movl %edi, %eax
+#else
+ movl DEST(%esp), %eax
#endif
popl %ebx
popl %esi
popl %edi
-#ifndef USE_AS_STPCPY
- movl 4(%esp), %eax
-#endif
- ret
+
+ LEAVE
+ RET_PTR
END(STRCPY)
diff --git a/sysdeps/i386/i586/strlen.S b/sysdeps/i386/i586/strlen.S
index 2e6ea68..e277126 100644
--- a/sysdeps/i386/i586/strlen.S
+++ b/sysdeps/i386/i586/strlen.S
@@ -1,6 +1,6 @@
/* strlen -- Compute length og NUL terminated string.
Highly optimized version for ix86, x>=5.
- Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
@@ -21,6 +21,7 @@
#include <sysdep.h>
#include "asm-syntax.h"
+#include "bp-asm.h"
/* This version is especially optimized for the i586 (and following?)
processors. This is mainly done by using the two pipelines. The
@@ -35,14 +36,14 @@
/* The magic value which is used throughout in the whole code. */
#define magic 0xfefefeff
-/*
- INPUT PARAMETERS:
- str (sp + 4)
-*/
+#define PARMS LINKAGE /* no space for saved regs */
+#define STR PARMS
.text
ENTRY(strlen)
- movl 4(%esp), %eax /* get string pointer */
+ ENTER
+
+ movl STR(%esp), %eax
movl $3, %edx /* load mask (= 3) */
andl %eax, %edx /* separate last two bits of address */
@@ -176,9 +177,9 @@ L(3): subl $4, %eax /* correct too early pointer increment */
incl %eax /* increment pointer */
-L(2): subl 4(%esp), %eax /* now compute the length as difference
+L(2): subl STR(%esp), %eax /* now compute the length as difference
between start and terminating NUL
character */
-
+ LEAVE
ret
END (strlen)
diff --git a/sysdeps/i386/i586/sub_n.S b/sysdeps/i386/i586/sub_n.S
index 03c85d9..dbfb5d2 100644
--- a/sysdeps/i386/i586/sub_n.S
+++ b/sysdeps/i386/i586/sub_n.S
@@ -1,6 +1,6 @@
/* Pentium __mpn_sub_n -- Subtract two limb vectors of the same length > 0
and store difference in a third limb vector.
- Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
+ Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 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
@@ -18,28 +18,29 @@
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)
- s2_ptr (sp + 12)
- size (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 S2 S1+PTR_SIZE
+#define SIZE S2+PTR_SIZE
.text
ENTRY(__mpn_sub_n)
+ ENTER
+
pushl %edi
pushl %esi
pushl %ebx
pushl %ebp
- movl 20(%esp),%edi /* res_ptr */
- movl 24(%esp),%esi /* s1_ptr */
- movl 28(%esp),%ebp /* s2_ptr */
- movl 32(%esp),%ecx /* size */
+ movl RES(%esp),%edi
+ movl S1(%esp),%esi
+ movl S2(%esp),%ebp
+ movl SIZE(%esp),%ecx
movl (%ebp),%ebx
@@ -123,5 +124,7 @@ L(end2):
popl %ebx
popl %esi
popl %edi
+
+ LEAVE
ret
END(__mpn_sub_n)
generated by cgit v1.1 at 2024-11-25 06:49:53 +0000