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1998-09-03 Philip Blundell <pb@nexus.co.uk> * sysdeps/arm/bits/endian.h (__FLOAT_WORD_ORDER): Define to big endian. * math/math_private.h: Use __FLOAT_WORD_ORDER rather than BYTE_ORDER. * string/endian.h: If __FLOAT_WORD_ORDER wasn't defined by <bits/endian.h>, make it the same as __BYTE_ORDER. 1998-11-27 Ulrich Drepper <drepper@cygnus.com> * math/math.h: Avoid using long double functions in generic macros if __NO_LONG_DOUBLE_MATH. * sysdeps/arm/dl-machine.h: Fix handling of weak undefined symbols during bootstrapping. * scripts/config.sub: Add Netwinder specific matches. Patch by Scott Bambrough <scottb@corelcomputer.com>. 1998-11-26 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * Makeconfig ($(common-objpfx)sysd-dirs): Use automatic variables if possible. ($(common-objpfx)sysd-sorted): Likewise. 1998-11-27 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/libm-ieee754/e_log.c (__ieee754_log): Add declaration of local variables t1,t2 only if needed. * sysdeps/libm-ieee754/e_atan2.c: Added braces to avoid compiler warnings. * sysdeps/libm-ieee754/s_truncf.c (__truncf): Likewise. * sysdeps/libm-ieee754/s_trunc.c (__trunc): Likewise. * sysdeps/mips/mul_1.S (Loop): Add closing comment to avoid warning. 1998-11-27 Andreas Jaeger <aj@arthur.rhein-neckar.de> * math/math.h: Add brace to correct #if expression.
87 lines
2.1 KiB
ArmAsm
87 lines
2.1 KiB
ArmAsm
/* MIPS __mpn_mul_1 -- Multiply a limb vector with a single limb and
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store the product in a second limb vector.
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Copyright (C) 1995, 1998 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., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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#include <sysdep.h>
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/* INPUT PARAMETERS
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res_ptr $4
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s1_ptr $5
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size $6
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s2_limb $7
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*/
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#ifdef PIC
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.option pic2
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#endif
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ENTRY (__mpn_mul_1)
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.set noreorder
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#ifdef PIC
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.cpload t9
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#endif
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.set nomacro
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/* warm up phase 0 */
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lw $8,0($5)
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/* warm up phase 1 */
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addiu $5,$5,4
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multu $8,$7
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addiu $6,$6,-1
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beq $6,$0,$LC0
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move $2,$0 /* zero cy2 */
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addiu $6,$6,-1
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beq $6,$0,$LC1
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lw $8,0($5) /* load new s1 limb as early as possible */
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Loop: mflo $10
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mfhi $9
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addiu $5,$5,4
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addu $10,$10,$2 /* add old carry limb to low product limb */
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multu $8,$7
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lw $8,0($5) /* load new s1 limb as early as possible */
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addiu $6,$6,-1 /* decrement loop counter */
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sltu $2,$10,$2 /* carry from previous addition -> $2 */
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sw $10,0($4)
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addiu $4,$4,4
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bne $6,$0,Loop /* should be "bnel" */
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addu $2,$9,$2 /* add high product limb and carry from addition */
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/* cool down phase 1 */
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$LC1: mflo $10
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mfhi $9
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addu $10,$10,$2
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sltu $2,$10,$2
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multu $8,$7
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sw $10,0($4)
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addiu $4,$4,4
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addu $2,$9,$2 /* add high product limb and carry from addition */
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/* cool down phase 0 */
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$LC0: mflo $10
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mfhi $9
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addu $10,$10,$2
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sltu $2,$10,$2
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sw $10,0($4)
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j $31
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addu $2,$9,$2 /* add high product limb and carry from addition */
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