glibc/sysdeps/hppa/hppa1.1/addmul_1.S

104 lines
2.7 KiB
ArmAsm
Raw Normal View History

;! HP-PA-1.1 __mpn_addmul_1 -- Multiply a limb vector with a limb and
;! add the result to a second limb vector.
1995-10-16 01:18:40 +00:00
;! Copyright (C) 1992-2019 Free Software Foundation, Inc.
1995-10-16 01:18:40 +00:00
;! This file is part of the GNU MP Library.
1995-10-16 01:18:40 +00:00
;! The GNU MP Library is free software; you can redistribute it and/or modify
2001-07-07 10:13:33 +00:00
;! it under the terms of the GNU Lesser General Public License as published by
;! the Free Software Foundation; either version 2.1 of the License, or (at your
;! option) any later version.
1995-10-16 01:18:40 +00:00
;! 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
2001-07-07 10:13:33 +00:00
;! or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
;! License for more details.
1995-10-16 01:18:40 +00:00
2001-07-07 10:13:33 +00:00
;! You should have received a copy of the GNU Lesser General Public License
2012-03-09 23:56:38 +00:00
;! along with the GNU MP Library. If not, see
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
;! <https://www.gnu.org/licenses/>.
1995-10-16 01:18:40 +00:00
;! INPUT PARAMETERS
;! res_ptr r26
;! s1_ptr r25
;! size r24
;! s2_limb r23
1995-10-16 01:18:40 +00:00
;! This runs at 11 cycles/limb on a PA7000. With the used instructions, it
;! can not become faster due to data cache contention after a store. On the
;! PA7100 it runs at 10 cycles/limb, and that can not be improved either,
;! since only the xmpyu does not need the integer pipeline, so the only
;! dual-issue we will get are addc+xmpyu. Unrolling could gain a cycle/limb
;! on the PA7100.
1995-10-16 01:18:40 +00:00
;! There are some ideas described in mul_1.s that applies to this code too.
1995-10-16 01:18:40 +00:00
.text
1995-10-16 01:18:40 +00:00
.export __mpn_addmul_1
2013-06-05 20:26:40 +00:00
__mpn_addmul_1:
1995-10-16 01:18:40 +00:00
.proc
.callinfo frame=64,no_calls
.entry
ldo 64(%r30),%r30
fldws,ma 4(%r25),%fr5
stw %r23,-16(%r30) ;! move s2_limb ...
1995-10-16 01:18:40 +00:00
addib,= -1,%r24,L$just_one_limb
fldws -16(%r30),%fr4 ;! ... into fr4
add %r0,%r0,%r0 ;! clear carry
1995-10-16 01:18:40 +00:00
xmpyu %fr4,%fr5,%fr6
fldws,ma 4(%r25),%fr7
fstds %fr6,-16(%r30)
xmpyu %fr4,%fr7,%fr8
ldw -12(%r30),%r20 ;! least significant limb in product
1995-10-16 01:18:40 +00:00
ldw -16(%r30),%r28
fstds %fr8,-16(%r30)
addib,= -1,%r24,L$end
ldw -12(%r30),%r1
;! Main loop
2013-06-05 20:26:40 +00:00
L$loop:
ldws 0(%r26),%r29
1995-10-16 01:18:40 +00:00
fldws,ma 4(%r25),%fr5
add %r29,%r20,%r20
stws,ma %r20,4(%r26)
addc %r28,%r1,%r20
1995-10-16 01:18:40 +00:00
xmpyu %fr4,%fr5,%fr6
ldw -16(%r30),%r28
fstds %fr6,-16(%r30)
addc %r0,%r28,%r28
addib,<> -1,%r24,L$loop
ldw -12(%r30),%r1
2013-06-05 20:26:40 +00:00
L$end:
ldw 0(%r26),%r29
add %r29,%r20,%r20
stws,ma %r20,4(%r26)
addc %r28,%r1,%r20
1995-10-16 01:18:40 +00:00
ldw -16(%r30),%r28
ldws 0(%r26),%r29
addc %r0,%r28,%r28
add %r29,%r20,%r20
stws,ma %r20,4(%r26)
1995-10-16 01:18:40 +00:00
addc %r0,%r28,%r28
bv 0(%r2)
ldo -64(%r30),%r30
1995-10-16 01:18:40 +00:00
2013-06-05 20:26:40 +00:00
L$just_one_limb:
1995-10-16 01:18:40 +00:00
xmpyu %fr4,%fr5,%fr6
ldw 0(%r26),%r29
fstds %fr6,-16(%r30)
ldw -12(%r30),%r1
ldw -16(%r30),%r28
add %r29,%r1,%r20
stw %r20,0(%r26)
1995-10-16 01:18:40 +00:00
addc %r0,%r28,%r28
bv 0(%r2)
ldo -64(%r30),%r30
.exit
.procend