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5a82c74822
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
169 lines
4.1 KiB
ArmAsm
169 lines
4.1 KiB
ArmAsm
/* mc68020 __mpn_lshift -- Shift left a low-level natural-number integer.
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Copyright (C) 1996-2019 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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 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 Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library. If not, see <https://www.gnu.org/licenses/>. */
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/*
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INPUT PARAMETERS
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res_ptr (sp + 4)
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s_ptr (sp + 8)
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s_size (sp + 16)
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cnt (sp + 12)
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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#define res_ptr a1
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#define s_ptr a0
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#define s_size d6
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#define cnt d4
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TEXT
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ENTRY(__mpn_lshift)
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/* Save used registers on the stack. */
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moveml R(d2)-R(d6)/R(a2),MEM_PREDEC(sp)
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cfi_adjust_cfa_offset (6*4)
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cfi_rel_offset (R(d2), 0)
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cfi_rel_offset (R(d3), 4)
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cfi_rel_offset (R(d4), 8)
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cfi_rel_offset (R(d5), 12)
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cfi_rel_offset (R(d6), 16)
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cfi_rel_offset (R(a2), 20)
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/* Copy the arguments to registers. */
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movel MEM_DISP(sp,28),R(res_ptr)
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movel MEM_DISP(sp,32),R(s_ptr)
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movel MEM_DISP(sp,36),R(s_size)
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movel MEM_DISP(sp,40),R(cnt)
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moveql #1,R(d5)
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cmpl R(d5),R(cnt)
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bne L(Lnormal)
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cmpl R(s_ptr),R(res_ptr)
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bls L(Lspecial) /* jump if s_ptr >= res_ptr */
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#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020))
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lea MEM_INDX1(s_ptr,s_size,l,4),R(a2)
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#else /* not mc68020 */
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movel R(s_size),R(d0)
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asll #2,R(d0)
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lea MEM_INDX(s_ptr,d0,l),R(a2)
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#endif
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cmpl R(res_ptr),R(a2)
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bls L(Lspecial) /* jump if res_ptr >= s_ptr + s_size */
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L(Lnormal:)
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moveql #32,R(d5)
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subl R(cnt),R(d5)
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#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020))
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lea MEM_INDX1(s_ptr,s_size,l,4),R(s_ptr)
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lea MEM_INDX1(res_ptr,s_size,l,4),R(res_ptr)
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#else /* not mc68000 */
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movel R(s_size),R(d0)
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asll #2,R(d0)
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addl R(s_size),R(s_ptr)
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addl R(s_size),R(res_ptr)
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#endif
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movel MEM_PREDEC(s_ptr),R(d2)
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movel R(d2),R(d0)
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lsrl R(d5),R(d0) /* compute carry limb */
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lsll R(cnt),R(d2)
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movel R(d2),R(d1)
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subql #1,R(s_size)
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beq L(Lend)
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lsrl #1,R(s_size)
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bcs L(L1)
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subql #1,R(s_size)
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L(Loop:)
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movel MEM_PREDEC(s_ptr),R(d2)
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movel R(d2),R(d3)
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lsrl R(d5),R(d3)
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orl R(d3),R(d1)
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movel R(d1),MEM_PREDEC(res_ptr)
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lsll R(cnt),R(d2)
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L(L1:)
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movel MEM_PREDEC(s_ptr),R(d1)
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movel R(d1),R(d3)
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lsrl R(d5),R(d3)
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orl R(d3),R(d2)
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movel R(d2),MEM_PREDEC(res_ptr)
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lsll R(cnt),R(d1)
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dbf R(s_size),L(Loop)
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subl #0x10000,R(s_size)
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bcc L(Loop)
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L(Lend:)
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movel R(d1),MEM_PREDEC(res_ptr) /* store least significant limb */
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/* Restore used registers from stack frame. */
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moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
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cfi_remember_state
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cfi_adjust_cfa_offset (-6*4)
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cfi_restore (R(d2))
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cfi_restore (R(d3))
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cfi_restore (R(d4))
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cfi_restore (R(d5))
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cfi_restore (R(d6))
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cfi_restore (R(a2))
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rts
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/* We loop from least significant end of the arrays, which is only
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permissible if the source and destination don't overlap, since the
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function is documented to work for overlapping source and destination. */
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cfi_restore_state
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L(Lspecial:)
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clrl R(d0) /* initialize carry */
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eorw #1,R(s_size)
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lsrl #1,R(s_size)
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bcc L(LL1)
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subql #1,R(s_size)
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L(LLoop:)
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movel MEM_POSTINC(s_ptr),R(d2)
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addxl R(d2),R(d2)
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movel R(d2),MEM_POSTINC(res_ptr)
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L(LL1:)
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movel MEM_POSTINC(s_ptr),R(d2)
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addxl R(d2),R(d2)
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movel R(d2),MEM_POSTINC(res_ptr)
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dbf R(s_size),L(LLoop)
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addxl R(d0),R(d0) /* save cy in lsb */
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subl #0x10000,R(s_size)
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bcs L(LLend)
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lsrl #1,R(d0) /* restore cy */
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bra L(LLoop)
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L(LLend:)
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/* Restore used registers from stack frame. */
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moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
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cfi_adjust_cfa_offset (-6*4)
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cfi_restore (R(d2))
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cfi_restore (R(d3))
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cfi_restore (R(d4))
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cfi_restore (R(d5))
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cfi_restore (R(d6))
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cfi_restore (R(a2))
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rts
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END(__mpn_lshift)
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