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77a58cad3f
* libio/Makefile [routines]: Remove iofscanf, add iopopen, pclose.
* libio/iofscanf.c: Remove file.
* libio/iogetdelim.c (_IO_getdelim): Correct stupid bug at string
termination.
* libio/iopopen.c: New file from GNU libio.
* libio/memstream.c: Fixed bug in fclose handling. Instead of
providing a close callback we need a finish callback.
* libio/pclose.c: New file. Derived from popen.c in GNU libio.
* posix/gnu/types.h: Fixed typo.
* stdio-common/errnobug.c: fputs returns EOF in error case. Do
not test for != 0.
* stdio-common/printf-parse.h (parse_one_spec): Do not force
padding with ' ' if precision is given. Fix by HJ Lu.
* stdio-common/printf_fp.c: Fix comment.
* stdio-common/tfformat.c, stdio-common/tiformat.c,
stdio-common/tstdiomisc.c: New files from GNU libio test suite.
* stdio-common/tstgetln.c: Provide ssize_t type when testing
libio.
* stdio-common/vfprintf.c (outchar): Use PUTC instead of putc.
(vfprintf): Cleasr args_type array before using it.
When printing 0 as an integer with precision 0 nothing must be
written for the number.
Based on patch by HJ Lu.
* stdio-common/vfscanf.c: Remove fixed input buffer. Now we
have a dynamically extended buffer.
* stdlib/strtod.c: Merge with version in Linux libc. This fixes
some bugs with handling of very small numbers and has different
solution for formaer patches.
* sysdeps/i386/i586/add_n.S, sysdeps/i386/i586/sub_n.S: Rename
macros r1 and r2 to t1, and t2 resp. This is necessary because
glibc headers also define r1.
Tue Dec 5 02:27:32 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* libio/Makefile [routines]: Remove iofscanf, add iopopen, pclose.
* libio/iofscanf.c: Remove file.
* libio/iogetdelim.c (_IO_getdelim): Correct stupid bug at string
termination.
* libio/iopopen.c: New file from GNU libio.
* libio/memstream.c: Fixed bug in fclose handling. Instead of
providing a close callback we need a finish callback.
* libio/pclose.c: New file. Derived from popen.c in GNU libio.
* posix/gnu/types.h: Fixed typo.
* stdio-common/errnobug.c: fputs returns EOF in error case. Do
not test for != 0.
* stdio-common/printf-parse.h (parse_one_spec): Do not force
padding with ' ' if precision is given. Fix by HJ Lu.
* stdio-common/printf_fp.c: Fix comment.
* stdio-common/tfformat.c, stdio-common/tiformat.c,
stdio-common/tstdiomisc.c: New files from GNU libio test suite.
* stdio-common/tstgetln.c: Provide ssize_t type when testing
libio.
* stdio-common/vfprintf.c (outchar): Use PUTC instead of putc.
(vfprintf): Cleasr args_type array before using it.
When printing 0 as an integer with precision 0 nothing must be
written for the number.
Based on patch by HJ Lu.
* stdio-common/vfscanf.c: Remove fixed input buffer. Now we
have a dynamically extended buffer.
* stdlib/strtod.c: Merge with version in Linux libc. This fixes
some bugs with handling of very small numbers and has different
solution for formaer patches.
* sysdeps/i386/i586/add_n.S, sysdeps/i386/i586/sub_n.S: Rename
macros r1 and r2 to t1, and t2 resp. This is necessary because
glibc headers also define r1.
137 lines
2.6 KiB
ArmAsm
137 lines
2.6 KiB
ArmAsm
/* Pentium __mpn_sub_n -- Subtract two limb vectors of the same length > 0
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and store difference in a third limb vector.
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Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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License for more details.
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You should have received a copy of the GNU Library General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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INPUT PARAMETERS
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res_ptr (sp + 4)
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s1_ptr (sp + 8)
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s2_ptr (sp + 12)
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size (sp + 16)
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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#define t1 %eax
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#define t2 %edx
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#define src1 %esi
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#define src2 %ebp
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#define dst %edi
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#define x %ebx
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.text
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ALIGN (3)
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.globl C_SYMBOL_NAME(__mpn_sub_n)
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C_SYMBOL_NAME(__mpn_sub_n:)
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pushl %edi
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pushl %esi
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pushl %ebx
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pushl %ebp
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movl 20(%esp),dst /* res_ptr */
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movl 24(%esp),src1 /* s1_ptr */
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movl 28(%esp),src2 /* s2_ptr */
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movl 32(%esp),%ecx /* size */
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movl (src2),x
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decl %ecx
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movl %ecx,t2
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shrl $3,%ecx
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andl $7,t2
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testl %ecx,%ecx /* zero carry flag */
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jz Lend
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pushl t2
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ALIGN (3)
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Loop: movl 28(dst),%eax /* fetch destination cache line */
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leal 32(dst),dst
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L1: movl (src1),t1
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movl 4(src1),t2
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sbbl x,t1
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movl 4(src2),x
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sbbl x,t2
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movl 8(src2),x
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movl t1,-32(dst)
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movl t2,-28(dst)
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L2: movl 8(src1),t1
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movl 12(src1),t2
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sbbl x,t1
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movl 12(src2),x
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sbbl x,t2
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movl 16(src2),x
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movl t1,-24(dst)
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movl t2,-20(dst)
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L3: movl 16(src1),t1
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movl 20(src1),t2
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sbbl x,t1
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movl 20(src2),x
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sbbl x,t2
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movl 24(src2),x
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movl t1,-16(dst)
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movl t2,-12(dst)
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L4: movl 24(src1),t1
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movl 28(src1),t2
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sbbl x,t1
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movl 28(src2),x
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sbbl x,t2
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movl 32(src2),x
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movl t1,-8(dst)
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movl t2,-4(dst)
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leal 32(src1),src1
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leal 32(src2),src2
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decl %ecx
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jnz Loop
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popl t2
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Lend:
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decl t2 /* test t2 w/o clobbering carry */
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js Lend2
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incl t2
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Loop2:
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leal 4(dst),dst
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movl (src1),t1
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sbbl x,t1
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movl 4(src2),x
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movl t1,-4(dst)
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leal 4(src1),src1
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leal 4(src2),src2
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decl t2
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jnz Loop2
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Lend2:
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movl (src1),t1
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sbbl x,t1
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movl t1,(dst)
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sbbl %eax,%eax
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negl %eax
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popl %ebp
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popl %ebx
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popl %esi
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popl %edi
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ret
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