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-rw-r--r--sysdeps/i386/Implies1
-rw-r--r--sysdeps/i386/Makefile3
-rw-r--r--sysdeps/i386/__longjmp.c66
-rw-r--r--sysdeps/i386/abort.c28
-rw-r--r--sysdeps/i386/add_n.S94
-rw-r--r--sysdeps/i386/addmul_1.S75
-rw-r--r--sysdeps/i386/asm-syntax.h64
-rw-r--r--sysdeps/i386/bsd-_setjmp.S32
-rw-r--r--sysdeps/i386/bsd-setjmp.S32
-rw-r--r--sysdeps/i386/bytesex.h3
-rw-r--r--sysdeps/i386/bzero.c81
-rw-r--r--sysdeps/i386/ffs.c45
-rw-r--r--sysdeps/i386/i586/memcopy.h94
-rw-r--r--sysdeps/i386/jmp_buf.h9
-rw-r--r--sysdeps/i386/lshift.S84
-rw-r--r--sysdeps/i386/memchr.c48
-rw-r--r--sysdeps/i386/memcopy.h86
-rw-r--r--sysdeps/i386/memset.c83
-rw-r--r--sysdeps/i386/mul_1.S74
-rw-r--r--sysdeps/i386/rshift.S86
-rw-r--r--sysdeps/i386/setjmp.c55
-rw-r--r--sysdeps/i386/strlen.c36
-rw-r--r--sysdeps/i386/sub_n.S94
-rw-r--r--sysdeps/i386/submul_1.S75
24 files changed, 1348 insertions, 0 deletions
diff --git a/sysdeps/i386/Implies b/sysdeps/i386/Implies
new file mode 100644
index 0000000000..1610bfdc5b
--- /dev/null
+++ b/sysdeps/i386/Implies
@@ -0,0 +1 @@
+ieee754
diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile
new file mode 100644
index 0000000000..29676784a2
--- /dev/null
+++ b/sysdeps/i386/Makefile
@@ -0,0 +1,3 @@
+# The mpn functions need a #define for asm syntax flavor.
+# Every i386 port in use uses gas syntax (I think).
+asm-CPPFLAGS := $(asm-CPPFLAGS) -DGAS_SYNTAX
diff --git a/sysdeps/i386/__longjmp.c b/sysdeps/i386/__longjmp.c
new file mode 100644
index 0000000000..65d6ec18ec
--- /dev/null
+++ b/sysdeps/i386/__longjmp.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 1991, 1992, 1994, 1995 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 it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#ifndef __GNUC__
+ #error This file uses GNU C extensions; you must compile with GCC.
+#endif
+
+/* Put these global register declarations first, because we get an error if
+ they come after any function definition, including inlines which might
+ be in some header. */
+
+#define REGS \
+ REG (bx);\
+ REG (si);\
+ REG (di);\
+ REG (bp);\
+ REG (sp)
+
+#define REG(xx) register long int xx asm (#xx)
+REGS;
+#undef REG
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <setjmp.h>
+#include <stdlib.h>
+
+/* Jump to the position specified by ENV, causing the
+ setjmp call there to return VAL, or 1 if VAL is 0. */
+void
+DEFUN(__longjmp, (env, val),
+ __jmp_buf env AND int val)
+{
+ /* We specify explicit registers because, when not optimizing,
+ the compiler will generate code that uses the frame pointer
+ after it's been munged. */
+
+ register CONST __typeof (env[0]) *e asm ("cx");
+ register int v asm ("ax");
+
+ e = env;
+ v = val == 0 ? 1 : val;
+
+#define REG(xx) xx = (long int) e->__##xx
+ REGS;
+
+ asm volatile ("jmp %*%0" : : "g" (e->__pc), "a" (v));
+
+ /* NOTREACHED */
+ abort ();
+}
diff --git a/sysdeps/i386/abort.c b/sysdeps/i386/abort.c
new file mode 100644
index 0000000000..28513fd1ec
--- /dev/null
+++ b/sysdeps/i386/abort.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1993, 1995 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 it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdlib.h>
+
+/* Cause an abnormal program termination with core-dump. */
+void
+DEFUN_VOID(abort)
+{
+ while (1)
+ asm ("hlt");
+}
diff --git a/sysdeps/i386/add_n.S b/sysdeps/i386/add_n.S
new file mode 100644
index 0000000000..f528976866
--- /dev/null
+++ b/sysdeps/i386/add_n.S
@@ -0,0 +1,94 @@
+/* i80386 __mpn_add_n -- Add two limb vectors of the same length > 0 and store
+sum in a third limb vector.
+
+Copyright (C) 1992, 1994 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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"
+
+.text
+ ALIGN (3)
+ .globl C_SYMBOL_NAME(__mpn_add_n)
+C_SYMBOL_NAME(__mpn_add_n:)
+ pushl %edi
+ pushl %esi
+
+ movl 12(%esp),%edi /* res_ptr */
+ movl 16(%esp),%esi /* s1_ptr */
+ movl 20(%esp),%edx /* s2_ptr */
+ movl 24(%esp),%ecx /* size */
+
+ movl %ecx,%eax
+ shrl $3,%ecx /* compute count for unrolled loop */
+ negl %eax
+ andl $7,%eax /* get index where to start loop */
+ jz Loop /* necessary special case for 0 */
+ incl %ecx /* adjust loop count */
+ shll $2,%eax /* adjustment for pointers... */
+ subl %eax,%edi /* ... since they are offset ... */
+ subl %eax,%esi /* ... by a constant when we ... */
+ subl %eax,%edx /* ... enter the loop */
+ shrl $2,%eax /* restore previous value */
+ leal (Loop - 3)(%eax,%eax,8),%eax /* calc start addr in loop */
+ jmp *%eax /* jump into loop */
+ ALIGN (3)
+Loop: movl (%esi),%eax
+ adcl (%edx),%eax
+ movl %eax,(%edi)
+ movl 4(%esi),%eax
+ adcl 4(%edx),%eax
+ movl %eax,4(%edi)
+ movl 8(%esi),%eax
+ adcl 8(%edx),%eax
+ movl %eax,8(%edi)
+ movl 12(%esi),%eax
+ adcl 12(%edx),%eax
+ movl %eax,12(%edi)
+ movl 16(%esi),%eax
+ adcl 16(%edx),%eax
+ movl %eax,16(%edi)
+ movl 20(%esi),%eax
+ adcl 20(%edx),%eax
+ movl %eax,20(%edi)
+ movl 24(%esi),%eax
+ adcl 24(%edx),%eax
+ movl %eax,24(%edi)
+ movl 28(%esi),%eax
+ adcl 28(%edx),%eax
+ movl %eax,28(%edi)
+ leal 32(%edi),%edi
+ leal 32(%esi),%esi
+ leal 32(%edx),%edx
+ decl %ecx
+ jnz Loop
+
+ sbbl %eax,%eax
+ negl %eax
+
+ popl %esi
+ popl %edi
+ ret
diff --git a/sysdeps/i386/addmul_1.S b/sysdeps/i386/addmul_1.S
new file mode 100644
index 0000000000..3e166ec38b
--- /dev/null
+++ b/sysdeps/i386/addmul_1.S
@@ -0,0 +1,75 @@
+/* i80386 __mpn_addmul_1 -- Multiply a limb vector with a limb and add
+ the result to a second limb vector.
+
+Copyright (C) 1992, 1994 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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"
+
+#define res_ptr edi
+#define s1_ptr esi
+#define size ecx
+#define s2_limb ebp
+
+ TEXT
+ ALIGN (3)
+ GLOBL C_SYMBOL_NAME(__mpn_addmul_1)
+C_SYMBOL_NAME(__mpn_addmul_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))
+ ALIGN (3)
+Loop:
+ INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
+ INSN1(mul,l ,R(s2_limb))
+ INSN2(add,l ,R(eax),R(ebx))
+ INSN2(adc,l ,R(edx),$0)
+ INSN2(add,l ,MEM_INDEX(res_ptr,size,4),R(eax))
+ INSN2(adc,l ,R(edx),$0)
+ INSN2(mov,l ,R(ebx),R(edx))
+
+ INSN1(inc,l ,R(size))
+ INSN1(jnz, ,Loop)
+ 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))
+ ret
diff --git a/sysdeps/i386/asm-syntax.h b/sysdeps/i386/asm-syntax.h
new file mode 100644
index 0000000000..6e287764dc
--- /dev/null
+++ b/sysdeps/i386/asm-syntax.h
@@ -0,0 +1,64 @@
+/* asm.h -- Definitions for x86 syntax variations.
+
+Copyright (C) 1992, 1994, 1995 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#undef ALIGN
+
+#ifdef GAS_SYNTAX
+#define R(r) %r
+#define MEM(base)(base)
+#define MEM_DISP(base,displacement)displacement(R(base))
+#define MEM_INDEX(base,index,size)(R(base),R(index),size)
+#ifdef __STDC__
+#define INSN1(mnemonic,size_suffix,dst)mnemonic##size_suffix dst
+#define INSN2(mnemonic,size_suffix,dst,src)mnemonic##size_suffix src,dst
+#else
+#define INSN1(mnemonic,size_suffix,dst)mnemonic/**/size_suffix dst
+#define INSN2(mnemonic,size_suffix,dst,src)mnemonic/**/size_suffix src,dst
+#endif
+#define TEXT .text
+#define ALIGN(log) .align log
+#define GLOBL .globl
+#endif
+
+#ifdef INTEL_SYNTAX
+#define R(r) r
+#define MEM(base)[base]
+#define MEM_DISP(base,displacement)[base+(displacement)]
+#define MEM_INDEX(base,index,size)[base+index*size]
+#define INSN1(mnemonic,size_suffix,dst)mnemonic dst
+#define INSN2(mnemonic,size_suffix,dst,src)mnemonic dst,src
+#define TEXT .text
+#define ALIGN(log) .align log
+#define GLOBL .globl
+#endif
+
+#ifdef BROKEN_ALIGN
+#undef ALIGN
+#define ALIGN(log) .align log,0x90
+#endif
+
+#if !defined (NOLOG_ALIGN) && defined (HAVE_ELF)
+#define NOLOG_ALIGN
+#endif
+
+#ifdef NOLOG_ALIGN
+#undef ALIGN
+#define ALIGN(log) .align 1<<log
+#endif
diff --git a/sysdeps/i386/bsd-_setjmp.S b/sysdeps/i386/bsd-_setjmp.S
new file mode 100644
index 0000000000..372fc242b2
--- /dev/null
+++ b/sysdeps/i386/bsd-_setjmp.S
@@ -0,0 +1,32 @@
+/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. i386 version.
+Copyright (C) 1994 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 it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
+ We cannot do it in C because it must be a tail-call, so frame-unwinding
+ in setjmp doesn't clobber the state restored by longjmp. */
+
+#include <sysdep.h>
+
+ENTRY (setjmp)
+ popl %eax /* Pop return PC. */
+ popl %ecx /* Pop jmp_buf argument. */
+ pushl $0 /* Push second argument of zero. */
+ pushl %ecx /* Push back first argument. */
+ pushl %eax /* Push back return PC. */
+ jmp C_SYMBOL_NAME (__sigsetjmp)
diff --git a/sysdeps/i386/bsd-setjmp.S b/sysdeps/i386/bsd-setjmp.S
new file mode 100644
index 0000000000..238f0307ad
--- /dev/null
+++ b/sysdeps/i386/bsd-setjmp.S
@@ -0,0 +1,32 @@
+/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. i386 version.
+Copyright (C) 1994 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 it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
+ We cannot do it in C because it must be a tail-call, so frame-unwinding
+ in setjmp doesn't clobber the state restored by longjmp. */
+
+#include <sysdep.h>
+
+ENTRY (setjmp)
+ popl %eax /* Pop return PC. */
+ popl %ecx /* Pop jmp_buf argument. */
+ pushl $1 /* Push second argument of one. */
+ pushl %ecx /* Push back first argument. */
+ pushl %eax /* Push back return PC. */
+ jmp C_SYMBOL_NAME (__sigsetjmp)
diff --git a/sysdeps/i386/bytesex.h b/sysdeps/i386/bytesex.h
new file mode 100644
index 0000000000..a5d6c5ea92
--- /dev/null
+++ b/sysdeps/i386/bytesex.h
@@ -0,0 +1,3 @@
+/* i386 is little-endian. */
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/sysdeps/i386/bzero.c b/sysdeps/i386/bzero.c
new file mode 100644
index 0000000000..659e54df22
--- /dev/null
+++ b/sysdeps/i386/bzero.c
@@ -0,0 +1,81 @@
+/* bzero -- set a block of memory to zero.
+ For Intel 80x86, x>=3.
+ Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <string.h>
+#include <memcopy.h>
+
+#undef bzero
+
+#ifdef __GNUC__
+
+void
+DEFUN(bzero, (dstpp, len),
+ PTR dstpp AND size_t len)
+{
+ /* N.B.: This code is almost verbatim from memset.c. */
+
+ unsigned long int dstp = (unsigned long int) dstpp;
+
+ /* This explicit register allocation
+ improves code very much indeed. */
+ register op_t x asm("ax");
+
+ x = 0;
+
+ /* Clear the direction flag, so filling will move forward. */
+ asm volatile("cld");
+
+ /* This threshold value is optimal. */
+ if (len >= 12)
+ {
+ /* Adjust LEN for the bytes handled in the first loop. */
+ len -= (-dstp) % OPSIZ;
+
+ /* There are at least some bytes to set.
+ No need to test for LEN == 0 in this alignment loop. */
+
+ /* Fill bytes until DSTP is aligned on a longword boundary. */
+ asm volatile("rep\n"
+ "stosb" /* %0, %2, %3 */ :
+ "=D" (dstp) :
+ "0" (dstp), "c" ((-dstp) % OPSIZ), "a" (x) :
+ "cx");
+
+ /* Fill longwords. */
+ asm volatile("rep\n"
+ "stosl" /* %0, %2, %3 */ :
+ "=D" (dstp) :
+ "0" (dstp), "c" (len / OPSIZ), "a" (x) :
+ "cx");
+ len %= OPSIZ;
+ }
+
+ /* Write the last few bytes. */
+ asm volatile("rep\n"
+ "stosb" /* %0, %2, %3 */ :
+ "=D" (dstp) :
+ "0" (dstp), "c" (len), "a" (x) :
+ "cx");
+}
+
+#else
+#include <sysdeps/generic/bzero.c>
+#endif
diff --git a/sysdeps/i386/ffs.c b/sysdeps/i386/ffs.c
new file mode 100644
index 0000000000..1e21585874
--- /dev/null
+++ b/sysdeps/i386/ffs.c
@@ -0,0 +1,45 @@
+/* ffs -- find first set bit in a word, counted from least significant end.
+ For Intel 80x86, x>=3.
+ Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <string.h>
+
+#undef ffs
+
+#ifdef __GNUC__
+
+int
+DEFUN(ffs, (x), int x)
+{
+ int cnt;
+ int tmp;
+
+ asm ("xorl %0,%0\n" /* Set CNT to zero. */
+ "bsfl %2,%1\n" /* Count low bits in X and store in %1. */
+ "jz nonzero\n" /* Jump if OK, i.e. X was non-zero. */
+ "leal 1(%1),%0\n" /* Return bsfl-result plus one on %0. */
+ "nonzero:" : "=&a" (cnt), "=r" (tmp) : "rm" (x));
+
+ return cnt;
+}
+
+#else
+#include <sysdeps/generic/ffs.c>
+#endif
diff --git a/sysdeps/i386/i586/memcopy.h b/sysdeps/i386/i586/memcopy.h
new file mode 100644
index 0000000000..a9bb9e7a40
--- /dev/null
+++ b/sysdeps/i386/i586/memcopy.h
@@ -0,0 +1,94 @@
+/* memcopy.h -- definitions for memory copy functions. Pentium version.
+ Copyright (C) 1994 Free Software Foundation, Inc.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/* Get the i386 definitions. We will override some of them below. */
+#include_next <memcopy.h>
+
+
+/* Written like this, the Pentium pipeline can execute the loop at a
+ sustained rate of 2 instructions/clock, or asymptotically 480
+ Mbytes/second at 60Mhz. */
+
+#undef WORD_COPY_FWD
+#define WORD_COPY_FWD(dst_bp, src_bp, nbytes_left, nbytes) \
+ do \
+ { \
+ asm volatile ("subl $32,%2\n" \
+ "js 2f\n" \
+ "1:\n" \
+ "movl 0(%1),%%eax\n" \
+ "movl 4(%1),%%edx\n" \
+ "movl %%eax,0(%0)\n" \
+ "movl %%edx,4(%0)\n" \
+ "movl 8(%1),%%eax\n" \
+ "movl 12(%1),%%edx\n" \
+ "movl %%eax,8(%0)\n" \
+ "movl %%edx,12(%0)\n" \
+ "movl 16(%1),%%eax\n" \
+ "movl 20(%1),%%edx\n" \
+ "movl %%eax,16(%0)\n" \
+ "movl %%edx,20(%0)\n" \
+ "movl 24(%1),%%eax\n" \
+ "movl 28(%1),%%edx\n" \
+ "movl %%eax,24(%0)\n" \
+ "movl %%edx,28(%0)\n" \
+ "addl $32,%1\n" \
+ "addl $32,%0\n" \
+ "subl $32,%2\n" \
+ "jns 1b\n" \
+ "2: addl $32,%2" : \
+ "=r" (dst_bp), "=r" (src_bp), "=r" (nbytes_left) : \
+ "0" (dst_bp), "1" (src_bp), "2" (nbytes) : \
+ "ax", "dx"); \
+ } while (0)
+
+#undef WORD_COPY_BWD
+#define WORD_COPY_BWD(dst_ep, src_ep, nbytes_left, nbytes) \
+ do \
+ { \
+ asm volatile ("subl $32,%2\n" \
+ "js 2f\n" \
+ "1:\n" \
+ "movl -4(%1),%%eax\n" \
+ "movl -8(%1),%%edx\n" \
+ "movl %%eax,-4(%0)\n" \
+ "movl %%edx,-8(%0)\n" \
+ "movl -12(%1),%%eax\n" \
+ "movl -16(%1),%%edx\n" \
+ "movl %%eax,-12(%0)\n" \
+ "movl %%edx,-16(%0)\n" \
+ "movl -20(%1),%%eax\n" \
+ "movl -24(%1),%%edx\n" \
+ "movl %%eax,-20(%0)\n" \
+ "movl %%edx,-24(%0)\n" \
+ "movl -28(%1),%%eax\n" \
+ "movl -32(%1),%%edx\n" \
+ "movl %%eax,-28(%0)\n" \
+ "movl %%edx,-32(%0)\n" \
+ "subl $32,%1\n" \
+ "subl $32,%0\n" \
+ "subl $32,%2\n" \
+ "jns 1b\n" \
+ "2: addl $32,%2" : \
+ "=r" (dst_bp), "=r" (src_bp), "=r" (nbytes_left) : \
+ "0" (dst_bp), "1" (src_bp), "2" (nbytes) : \
+ "ax", "dx"); \
+ } while (0)
diff --git a/sysdeps/i386/jmp_buf.h b/sysdeps/i386/jmp_buf.h
new file mode 100644
index 0000000000..7686c4d278
--- /dev/null
+++ b/sysdeps/i386/jmp_buf.h
@@ -0,0 +1,9 @@
+/* Define the machine-dependent type `jmp_buf'. Intel 386 version. */
+
+typedef struct
+ {
+ long int __bx, __si, __di;
+ __ptr_t __bp;
+ __ptr_t __sp;
+ __ptr_t __pc;
+ } __jmp_buf[1];
diff --git a/sysdeps/i386/lshift.S b/sysdeps/i386/lshift.S
new file mode 100644
index 0000000000..ca48eda8ce
--- /dev/null
+++ b/sysdeps/i386/lshift.S
@@ -0,0 +1,84 @@
+/* i80386 __mpn_lshift --
+
+Copyright (C) 1992, 1994 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ INPUT PARAMETERS
+ res_ptr (sp + 4)
+ s_ptr (sp + 8)
+ size (sp + 12)
+ cnt (sp + 16)
+*/
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+.text
+ ALIGN (3)
+ .globl C_SYMBOL_NAME(__mpn_lshift)
+C_SYMBOL_NAME(__mpn_lshift:)
+ pushl %edi
+ pushl %esi
+ pushl %ebx
+
+ movl 16(%esp),%edi /* res_ptr */
+ movl 20(%esp),%esi /* s_ptr */
+ movl 24(%esp),%edx /* size */
+ movl 28(%esp),%ecx /* cnt */
+
+ subl $4,%esi /* adjust s_ptr */
+
+ movl (%esi,%edx,4),%ebx /* read most significant limb */
+ xorl %eax,%eax
+ shldl %cl,%ebx,%eax /* compute carry limb */
+ decl %edx
+ jz Lend
+ pushl %eax /* push carry limb onto stack */
+ testb $1,%edx
+ jnz L1 /* enter loop in the middle */
+ movl %ebx,%eax
+
+ ALIGN (3)
+Loop: movl (%esi,%edx,4),%ebx /* load next lower limb */
+ shldl %cl,%ebx,%eax /* compute result limb */
+ movl %eax,(%edi,%edx,4) /* store it */
+ decl %edx
+L1: movl (%esi,%edx,4),%eax
+ shldl %cl,%eax,%ebx
+ movl %ebx,(%edi,%edx,4)
+ decl %edx
+ jnz Loop
+
+ shll %cl,%eax /* compute least significant limb */
+ movl %eax,(%edi) /* store it */
+
+ popl %eax /* pop carry limb */
+
+ popl %ebx
+ popl %esi
+ popl %edi
+ ret
+
+Lend: shll %cl,%ebx /* compute least significant limb */
+ movl %ebx,(%edi) /* store it */
+
+ popl %ebx
+ popl %esi
+ popl %edi
+ ret
diff --git a/sysdeps/i386/memchr.c b/sysdeps/i386/memchr.c
new file mode 100644
index 0000000000..ff0f8d9044
--- /dev/null
+++ b/sysdeps/i386/memchr.c
@@ -0,0 +1,48 @@
+/* memchr (str, ch, n) -- Return pointer to first occurrence of CH in STR less
+ than N.
+ For Intel 80x86, x>=3.
+ Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <string.h>
+
+#ifdef __GNUC__
+
+PTR
+DEFUN(memchr, (str, c, len),
+ CONST PTR str AND int c AND size_t len)
+{
+ PTR retval;
+ asm("cld\n" /* Search forward. */
+ "testl %1,%1\n" /* Clear Z flag, to handle LEN == 0. */
+ /* Some old versions of gas need `repne' instead of `repnz'. */
+ "repnz\n" /* Search for C in al. */
+ "scasb\n"
+ "movl %2,%0\n" /* Set %0 to 0 (without affecting Z flag). */
+ "jnz done\n" /* Jump if we found nothing equal to C. */
+ "leal -1(%1),%0\n" /* edi has been incremented. Return edi-1. */
+ "done:" :
+ "=a" (retval), "=D" (str), "=c" (len) :
+ "0" (c), "1" (str), "2" (len));
+ return retval;
+}
+
+#else
+#include <sysdeps/generic/memchr.c>
+#endif
diff --git a/sysdeps/i386/memcopy.h b/sysdeps/i386/memcopy.h
new file mode 100644
index 0000000000..506d3ea54d
--- /dev/null
+++ b/sysdeps/i386/memcopy.h
@@ -0,0 +1,86 @@
+/* memcopy.h -- definitions for memory copy functions. i386 version.
+ Copyright (C) 1991 Free Software Foundation, Inc.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdeps/generic/memcopy.h>
+
+#undef OP_T_THRES
+#define OP_T_THRES 8
+
+#undef BYTE_COPY_FWD
+#define BYTE_COPY_FWD(dst_bp, src_bp, nbytes) \
+ asm volatile(/* Clear the direction flag, so copying goes forward. */ \
+ "cld\n" \
+ /* Copy bytes. */ \
+ "rep\n" \
+ "movsb" : \
+ "=D" (dst_bp), "=S" (src_bp) : \
+ "0" (dst_bp), "1" (src_bp), "c" (nbytes) : \
+ "cx")
+
+#undef BYTE_COPY_BWD
+#define BYTE_COPY_BWD(dst_ep, src_ep, nbytes) \
+ do \
+ { \
+ asm volatile(/* Set the direction flag, so copying goes backwards. */ \
+ "std\n" \
+ /* Copy bytes. */ \
+ "rep\n" \
+ "movsb\n" \
+ /* Clear the dir flag. Convention says it should be 0. */ \
+ "cld" : \
+ "=D" (dst_ep), "=S" (src_ep) : \
+ "0" (dst_ep - 1), "1" (src_ep - 1), "c" (nbytes) : \
+ "cx"); \
+ dst_ep += 1; \
+ src_ep += 1; \
+ } while (0)
+
+#undef WORD_COPY_FWD
+#define WORD_COPY_FWD(dst_bp, src_bp, nbytes_left, nbytes) \
+ do \
+ { \
+ asm volatile(/* Clear the direction flag, so copying goes forward. */ \
+ "cld\n" \
+ /* Copy longwords. */ \
+ "rep\n" \
+ "movsl" : \
+ "=D" (dst_bp), "=S" (src_bp) : \
+ "0" (dst_bp), "1" (src_bp), "c" ((nbytes) / 4) : \
+ "cx"); \
+ (nbytes_left) = (nbytes) % 4; \
+ } while (0)
+
+#undef WORD_COPY_BWD
+#define WORD_COPY_BWD(dst_ep, src_ep, nbytes_left, nbytes) \
+ do \
+ { \
+ asm volatile(/* Set the direction flag, so copying goes backwards. */ \
+ "std\n" \
+ /* Copy longwords. */ \
+ "rep\n" \
+ "movsl\n" \
+ /* Clear the dir flag. Convention says it should be 0. */ \
+ "cld" : \
+ "=D" (dst_ep), "=S" (src_ep) : \
+ "0" (dst_ep - 4), "1" (src_ep - 4), "c" ((nbytes) / 4) : \
+ "cx"); \
+ dst_ep += 4; \
+ src_ep += 4; \
+ (nbytes_left) = (nbytes) % 4; \
+ } while (0)
diff --git a/sysdeps/i386/memset.c b/sysdeps/i386/memset.c
new file mode 100644
index 0000000000..2987445d4f
--- /dev/null
+++ b/sysdeps/i386/memset.c
@@ -0,0 +1,83 @@
+/* memset -- set a block of memory to some byte value.
+ For Intel 80x86, x>=3.
+ Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <string.h>
+#include <memcopy.h>
+
+#ifdef __GNUC__
+
+PTR
+DEFUN(memset, (dstpp, c, len),
+ PTR dstpp AND int c AND size_t len)
+{
+ unsigned long int dstp = (unsigned long int) dstpp;
+
+ /* This explicit register allocation
+ improves code very much indeed. */
+ register op_t x asm("ax");
+
+ x = (unsigned char) c;
+
+ /* Clear the direction flag, so filling will move forward. */
+ asm volatile("cld");
+
+ /* This threshold value is optimal. */
+ if (len >= 12)
+ {
+ /* Fill X with four copies of the char we want to fill with. */
+ x |= (x << 8);
+ x |= (x << 16);
+
+ /* Adjust LEN for the bytes handled in the first loop. */
+ len -= (-dstp) % OPSIZ;
+
+ /* There are at least some bytes to set.
+ No need to test for LEN == 0 in this alignment loop. */
+
+ /* Fill bytes until DSTP is aligned on a longword boundary. */
+ asm volatile("rep\n"
+ "stosb" /* %0, %2, %3 */ :
+ "=D" (dstp) :
+ "0" (dstp), "c" ((-dstp) % OPSIZ), "a" (x) :
+ "cx");
+
+ /* Fill longwords. */
+ asm volatile("rep\n"
+ "stosl" /* %0, %2, %3 */ :
+ "=D" (dstp) :
+ "0" (dstp), "c" (len / OPSIZ), "a" (x) :
+ "cx");
+ len %= OPSIZ;
+ }
+
+ /* Write the last few bytes. */
+ asm volatile("rep\n"
+ "stosb" /* %0, %2, %3 */ :
+ "=D" (dstp) :
+ "0" (dstp), "c" (len), "a" (x) :
+ "cx");
+
+ return dstpp;
+}
+
+#else
+#include <sysdeps/generic/memset.c>
+#endif
diff --git a/sysdeps/i386/mul_1.S b/sysdeps/i386/mul_1.S
new file mode 100644
index 0000000000..303a940f0b
--- /dev/null
+++ b/sysdeps/i386/mul_1.S
@@ -0,0 +1,74 @@
+/* i80386 __mpn_mul_1 -- Multiply a limb vector with a limb and store
+ the result in a second limb vector.
+
+Copyright (C) 1992, 1994 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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"
+
+#define res_ptr edi
+#define s1_ptr esi
+#define size ecx
+#define s2_limb ebp
+
+ TEXT
+ ALIGN (3)
+ GLOBL C_SYMBOL_NAME(__mpn_mul_1)
+C_SYMBOL_NAME(__mpn_mul_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))
+ ALIGN (3)
+Loop:
+ INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
+ INSN1(mul,l ,R(s2_limb))
+ INSN2(add,l ,R(eax),R(ebx))
+ INSN2(mov,l ,MEM_INDEX(res_ptr,size,4),R(eax))
+ INSN2(adc,l ,R(edx),$0)
+ INSN2(mov,l ,R(ebx),R(edx))
+
+ INSN1(inc,l ,R(size))
+ INSN1(jnz, ,Loop)
+ 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))
+ ret
diff --git a/sysdeps/i386/rshift.S b/sysdeps/i386/rshift.S
new file mode 100644
index 0000000000..d4aa0b93e6
--- /dev/null
+++ b/sysdeps/i386/rshift.S
@@ -0,0 +1,86 @@
+/* i80386 __mpn_rshift --
+
+Copyright (C) 1992, 1994 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ INPUT PARAMETERS
+ res_ptr (sp + 4)
+ s_ptr (sp + 8)
+ size (sp + 12)
+ cnt (sp + 16)
+*/
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+.text
+ ALIGN (3)
+ .globl C_SYMBOL_NAME(__mpn_rshift)
+C_SYMBOL_NAME(__mpn_rshift:)
+ pushl %edi
+ pushl %esi
+ pushl %ebx
+
+ movl 16(%esp),%edi /* res_ptr */
+ movl 20(%esp),%esi /* s_ptr */
+ movl 24(%esp),%edx /* size */
+ movl 28(%esp),%ecx /* cnt */
+
+ leal -4(%edi,%edx,4),%edi
+ leal (%esi,%edx,4),%esi
+ negl %edx
+
+ movl (%esi,%edx,4),%ebx /* read least significant limb */
+ xorl %eax,%eax
+ shrdl %cl,%ebx,%eax /* compute carry limb */
+ incl %edx
+ jz Lend
+ pushl %eax /* push carry limb onto stack */
+ testb $1,%edx
+ jnz L1 /* enter loop in the middle */
+ movl %ebx,%eax
+
+ ALIGN (3)
+Loop: movl (%esi,%edx,4),%ebx /* load next higher limb */
+ shrdl %cl,%ebx,%eax /* compute result limb */
+ movl %eax,(%edi,%edx,4) /* store it */
+ incl %edx
+L1: movl (%esi,%edx,4),%eax
+ shrdl %cl,%eax,%ebx
+ movl %ebx,(%edi,%edx,4)
+ incl %edx
+ jnz Loop
+
+ shrl %cl,%eax /* compute most significant limb */
+ movl %eax,(%edi) /* store it */
+
+ popl %eax /* pop carry limb */
+
+ popl %ebx
+ popl %esi
+ popl %edi
+ ret
+
+Lend: shrl %cl,%ebx /* compute most significant limb */
+ movl %ebx,(%edi) /* store it */
+
+ popl %ebx
+ popl %esi
+ popl %edi
+ ret
diff --git a/sysdeps/i386/setjmp.c b/sysdeps/i386/setjmp.c
new file mode 100644
index 0000000000..fb8fc98659
--- /dev/null
+++ b/sysdeps/i386/setjmp.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 1991, 1992, 1994 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 it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/* Put these global register declarations first, because we get an error if
+ they come after any function definition, including inlines which might
+ be in some header. */
+
+#define REGS \
+ REG (bx);\
+ REG (si);\
+ REG (di)
+
+#define REG(xx) register long int xx asm (#xx)
+REGS;
+#undef REG
+
+#include <errno.h>
+#include <setjmp.h>
+
+/* Save the current program position in ENV and return 0. */
+int
+__sigsetjmp (jmp_buf env, int savemask)
+{
+ /* Save the general registers. */
+#define REG(xx) env[0].__jmpbuf[0].__##xx = xx
+ REGS;
+#undef REG
+
+ /* Save the return PC. */
+ env[0].__jmpbuf[0].__pc = ((void **) &env)[-1];
+
+ /* Save caller's FP, not our own. */
+ env[0].__jmpbuf[0].__bp = ((void **) &env)[-2];
+
+ /* Save caller's SP, not our own. */
+ env[0].__jmpbuf[0].__sp = (void *) &env;
+
+ /* Save the signal mask if requested. */
+ return __sigjmp_save (env, savemask);
+}
diff --git a/sysdeps/i386/strlen.c b/sysdeps/i386/strlen.c
new file mode 100644
index 0000000000..3c1398b461
--- /dev/null
+++ b/sysdeps/i386/strlen.c
@@ -0,0 +1,36 @@
+/* strlen -- determine the length of a string.
+ For Intel 80x86, x>=3.
+ Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <string.h>
+
+size_t
+DEFUN(strlen, (str), CONST char *str)
+{
+ int cnt;
+
+ asm("cld\n" /* Search forward. */
+ /* Some old versions of gas need `repne' instead of `repnz'. */
+ "repnz\n" /* Look for a zero byte. */
+ "scasb" /* %0, %1, %3 */ :
+ "=c" (cnt) : "D" (str), "0" (-1), "a" (0));
+
+ return -2 - cnt;
+}
diff --git a/sysdeps/i386/sub_n.S b/sysdeps/i386/sub_n.S
new file mode 100644
index 0000000000..a1630d4562
--- /dev/null
+++ b/sysdeps/i386/sub_n.S
@@ -0,0 +1,94 @@
+/* i80386 __mpn_sub_n -- Add two limb vectors of the same length > 0 and store
+ sum in a third limb vector.
+
+Copyright (C) 1992, 1994 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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"
+
+.text
+ ALIGN (3)
+ .globl C_SYMBOL_NAME(__mpn_sub_n)
+C_SYMBOL_NAME(__mpn_sub_n:)
+ pushl %edi
+ pushl %esi
+
+ movl 12(%esp),%edi /* res_ptr */
+ movl 16(%esp),%esi /* s1_ptr */
+ movl 20(%esp),%edx /* s2_ptr */
+ movl 24(%esp),%ecx /* size */
+
+ movl %ecx,%eax
+ shrl $3,%ecx /* compute count for unrolled loop */
+ negl %eax
+ andl $7,%eax /* get index where to start loop */
+ jz Loop /* necessary special case for 0 */
+ incl %ecx /* adjust loop count */
+ shll $2,%eax /* adjustment for pointers... */
+ subl %eax,%edi /* ... since they are offset ... */
+ subl %eax,%esi /* ... by a constant when we ... */
+ subl %eax,%edx /* ... enter the loop */
+ shrl $2,%eax /* restore previous value */
+ leal (Loop - 3)(%eax,%eax,8),%eax /* calc start addr in loop */
+ jmp *%eax /* jump into loop */
+ ALIGN (3)
+Loop: movl (%esi),%eax
+ sbbl (%edx),%eax
+ movl %eax,(%edi)
+ movl 4(%esi),%eax
+ sbbl 4(%edx),%eax
+ movl %eax,4(%edi)
+ movl 8(%esi),%eax
+ sbbl 8(%edx),%eax
+ movl %eax,8(%edi)
+ movl 12(%esi),%eax
+ sbbl 12(%edx),%eax
+ movl %eax,12(%edi)
+ movl 16(%esi),%eax
+ sbbl 16(%edx),%eax
+ movl %eax,16(%edi)
+ movl 20(%esi),%eax
+ sbbl 20(%edx),%eax
+ movl %eax,20(%edi)
+ movl 24(%esi),%eax
+ sbbl 24(%edx),%eax
+ movl %eax,24(%edi)
+ movl 28(%esi),%eax
+ sbbl 28(%edx),%eax
+ movl %eax,28(%edi)
+ leal 32(%edi),%edi
+ leal 32(%esi),%esi
+ leal 32(%edx),%edx
+ decl %ecx
+ jnz Loop
+
+ sbbl %eax,%eax
+ negl %eax
+
+ popl %esi
+ popl %edi
+ ret
diff --git a/sysdeps/i386/submul_1.S b/sysdeps/i386/submul_1.S
new file mode 100644
index 0000000000..5ab78f6846
--- /dev/null
+++ b/sysdeps/i386/submul_1.S
@@ -0,0 +1,75 @@
+/* i80386 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
+ the result from a second limb vector.
+
+Copyright (C) 1992, 1994 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
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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"
+
+#define res_ptr edi
+#define s1_ptr esi
+#define size ecx
+#define s2_limb ebp
+
+ TEXT
+ ALIGN (3)
+ GLOBL C_SYMBOL_NAME(__mpn_submul_1)
+C_SYMBOL_NAME(__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))
+ ALIGN (3)
+Loop:
+ INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
+ INSN1(mul,l ,R(s2_limb))
+ INSN2(add,l ,R(eax),R(ebx))
+ INSN2(adc,l ,R(edx),$0)
+ INSN2(sub,l ,MEM_INDEX(res_ptr,size,4),R(eax))
+ INSN2(adc,l ,R(edx),$0)
+ INSN2(mov,l ,R(ebx),R(edx))
+
+ INSN1(inc,l ,R(size))
+ INSN1(jnz, ,Loop)
+ 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))
+ ret
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