From 8f5ca04bc7fd53741d80117df992995ace8f6d2d Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Mon, 16 Oct 1995 01:37:51 +0000 Subject: Sat Oct 14 02:52:36 1995 Ulrich Drepper * malloc/malloc.c (_malloc_internal): Performance fix. Move if statement out of loop. * stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster implementation using GMP functions. Contributed by Torbjorn Granlund and Ulrich Drepper. * stdio/test_rdwr.c: Include . * sysdeps/i386/i586/Implies: New file. New highly optimized string functions for i[345]86. * sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files. * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files. * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files. * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files. * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files. * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files. * sysdeps/i386/i586/strlen.S: New file. * sysdeps/i386/memchr.c: Removed. There is now an assembler version. * sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did not correspond to used values. * sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper around a kernel header file. * sysdeps/unix/sysv/linux/Dist: Add it. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers): Likewise. * sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of defining ourself we use a kernel header file. * sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system call handler for i586. * sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up. Sat Oct 14 02:52:36 1995 Ulrich Drepper * malloc/malloc.c (_malloc_internal): Performance fix. Move if statement out of loop. * stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster implementation using GMP functions. Contributed by Torbjorn Granlund and Ulrich Drepper. * stdio/test_rdwr.c: Include . * sysdeps/i386/i586/Implies: New file. New highly optimized string functions for i[345]86. * sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files. * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files. * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files. * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files. * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files. * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files. * sysdeps/i386/i586/strlen.S: New file. * sysdeps/i386/memchr.c: Removed. There is now an assembler version. * sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did not correspond to used values. * sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper around a kernel header file. * sysdeps/unix/sysv/linux/Dist: Add it. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers): Likewise. * sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of defining ourself we use a kernel header file. * sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system call handler for i586. * sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up. --- sysdeps/mips/add_n.s | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 sysdeps/mips/add_n.s (limited to 'sysdeps/mips/add_n.s') diff --git a/sysdeps/mips/add_n.s b/sysdeps/mips/add_n.s new file mode 100644 index 0000000000..c82910816e --- /dev/null +++ b/sysdeps/mips/add_n.s @@ -0,0 +1,119 @@ + # MIPS2 __mpn_add_n -- Add two limb vectors of the same length > 0 and + # store sum in a third limb vector. + + # Copyright (C) 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. + + + # INPUT PARAMETERS + # res_ptr $4 + # s1_ptr $5 + # s2_ptr $6 + # size $7 + + .text + .align 2 + .globl __mpn_add_n + .ent __mpn_add_n +__mpn_add_n: + .set noreorder + .set nomacro + + lw $10,0($5) + lw $11,0($6) + + addiu $7,$7,-1 + and $9,$7,4-1 # number of limbs in first loop + beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop + move $2,$0 + + subu $7,$7,$9 + +.Loop0: addiu $9,$9,-1 + lw $12,4($5) + addu $11,$11,$2 + lw $13,4($6) + sltu $8,$11,$2 + addu $11,$10,$11 + sltu $2,$11,$10 + sw $11,0($4) + or $2,$2,$8 + + addiu $5,$5,4 + addiu $6,$6,4 + move $10,$12 + move $11,$13 + bne $9,$0,.Loop0 + addiu $4,$4,4 + +.L0: beq $7,$0,.Lend + nop + +.Loop: addiu $7,$7,-4 + + lw $12,4($5) + addu $11,$11,$2 + lw $13,4($6) + sltu $8,$11,$2 + addu $11,$10,$11 + sltu $2,$11,$10 + sw $11,0($4) + or $2,$2,$8 + + lw $10,8($5) + addu $13,$13,$2 + lw $11,8($6) + sltu $8,$13,$2 + addu $13,$12,$13 + sltu $2,$13,$12 + sw $13,4($4) + or $2,$2,$8 + + lw $12,12($5) + addu $11,$11,$2 + lw $13,12($6) + sltu $8,$11,$2 + addu $11,$10,$11 + sltu $2,$11,$10 + sw $11,8($4) + or $2,$2,$8 + + lw $10,16($5) + addu $13,$13,$2 + lw $11,16($6) + sltu $8,$13,$2 + addu $13,$12,$13 + sltu $2,$13,$12 + sw $13,12($4) + or $2,$2,$8 + + addiu $5,$5,16 + addiu $6,$6,16 + + bne $7,$0,.Loop + addiu $4,$4,16 + +.Lend: addu $11,$11,$2 + sltu $8,$11,$2 + addu $11,$10,$11 + sltu $2,$11,$10 + sw $11,0($4) + j $31 + or $2,$2,$8 + + .end __mpn_add_n -- cgit v1.2.3