glibc/sysdeps/sparc/sparc32/mul_1.S
Ulrich Drepper f41c80910d Update.
1997-08-24 12:24  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in (INSTALL): Quote `$'.

	* libc.map: Add __xpg_basename.

	* csu/Makefile (initfini.s): Disable optimization.

	* elf/dl-deps.c: Implement handling of DL_FILTER.

	* elf/dl-load.c (_dl_init_paths): Add error check.

	* intl/finddomain.c (_nl_find_domain): Correct comment.
	* intl/localealias.c: Include <bits/libc-lock.h> not <libc-lock.h>.

	* libio/stdio.h: Make {,v}snprintf available if __USE_BSD.
	Change extern inline functions to work correctly in C++.

	* locale/iso-4217.def: Update for more recent ISO 4217 version.

	* locale/loadlocale.c (_nl_load_locale): Add cast.

	* manual/message.texi: Finish gettext section.

	* posix/getopt_init.c: Don't use relative #include path.
	(__getopt_clean_environment): Change function to take pointer to
	environment as argument.  Optimize generation of test string a bit.
	* sysdeps/unix/sysv/linux/init-first.c: Call __getopt_clean_environment
	with additional argument.

	* poisx/glob.c: Add prototype for next_brace_sub.

	* sysdeps/generic/dl-sysdep.c: Recognize AT_BASE value on auxiliary
	vector.

	* sysdeps/i386/dl-machine.h (elf_machine_load_address): Rewrite
	to not generate relocation entry.  Suggested by Richard Henderson.
	(ELF_MACHINE_BEFORE_RTLD_RELOC): Removed.
	(elf_machine_runtime_setup): Add .aligns.

	* sysdeps/i386/fpu/fraiseexcpt.c: Add volatile to asms.

	* sysdeps/i386/fpu/bits/mathinline.h: Partially undo change of
	1997-08-14 03:14.  gcc 2.7.2* is really broken in some aspects.

	* sysdeps/standalone/i386/i386.h: Clean up asm statements a bit.
	* sysdeps/standalone/i960/i960ca.h: Likewise.

1997-08-22 19:04  Richard Henderson  <rth@cygnus.com>

	* elf/rtld.c (_dl_start): Init _dl_rtld_map.l_opencount due to
	undocumented test addition in _dl_map_object.

	Support ET_EXEC versions of ld.so, for debugging at least:

	* elf/dl-load.c (_dl_map_object): Add_name_to_object could get
	called despite the DT_SONAME != NULL test, segfaulting.  Simplify
	the code here as well.
	* elf/dl-lookup.c (do_lookup): Skip objects with no symtab.
	(_dl_setup_hash): Likewise for hash tables.
	* elf/dl-version.c (_dl_check_map_versions): Likewise for strtabs.
	* elf/rtld.c (_dl_start): Likewise for rpath.
	(_dl_rtld_libname2): New variable.
	(dl_main): Use it to add an soname for ourselves when we don't have
	one of our own.  Base it on the target's .interp.
	(dl_main): Again, skip printing of objects that don't have strtabs.

	Sparc 32 merge:

	* elf/dl-runtime.c (ELF_FIXUP_RETURN_VALUE): Provide default value.
	(fixup): Simplify code.  Use ELF_FIXUP_RETURN_VALUE.
	(profile_fixup): Likewise, though this still needs fixing for
	Sparc32 and PPC.
	* sysdeps/powerpc/dl-machine.h: Transmute ELF_FIXUP_RETURNS_ADDRESS
	to ELF_FIXUP_RETURN_VALUE.

	* sysdeps/sparc/sparc32/dl-machine.h: Implement lazy relocation.
	Fix up _dl_start_user to handle _dl_skip_args properly.
	Use _dl_hwcap to determine if "flush" is available/needed.

	* sysdeps/sparc/configure.in: Remove.  It doesn't actually do
	anything anymore, and what it did do is done somewhere else.
	* sysdeps/sparc/configure: Likewise.

	* sysdeps/sparc/fpu/bits/mathdef.h (FP_ILOGB0, FP_ILOGBNAN): New.

	* sysdeps/sparc/fpu/fraiseexcpt.c: Rearrange for smaller code.

	* sysdeps/sparc/sparc32/Makefile: Fix sparc->sparc/sparc32 bits
	in divrem expansions.

	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h (END, LOC): New
	definitions for assembly syntax differences.

	* sysdeps/sparc/sparc32/__longjmp.S: %g6,%g7 are reserved to the
	"system".  Use %g2,%g3 instead.  Use new local label macro.
	* sysdeps/sparc/sparc32/add_n.S: Use <sysdep.h> and ENTRY, END,
	and LOC for proper assembly headers/footers.
	* sysdeps/sparc/sparc32/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc32/alloca.S: Likewise.
	* sysdeps/sparc/sparc32/dotmul.S: Likewise.
	* sysdeps/sparc/sparc32/lshift.S: Likewise.
	* sysdeps/sparc/sparc32/mul_1.S: Likewise.
	* sysdeps/sparc/sparc32/rshift.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/mul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/submul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/udiv_qrnnd.S: Likewise.
	* sysdeps/sparc/sparc32/sub_n.S: Likewise.
	* sysdeps/sparc/sparc32/submul_1.S: Likewise.
	* sysdeps/sparc/sparc32/udiv_qrnnd.S: Likewise.
	* sysdeps/sparc/sparc32/umul.S: Likewise.
	* sysdeps/sparc/sparc32/divrem.m4: Likewise.
	* sysdeps/sparc/sparc32/rem.S: Regenerate.
	* sysdeps/sparc/sparc32/sdiv.S: Regenerate.
	* sysdeps/sparc/sparc32/udiv.S: Regenerate.
	* sysdeps/sparc/sparc32/urem.S: Regenerate.

	* sysdeps/sparc/sparc32/sparcv8/dotmul.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/rem.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/sdiv.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/udiv.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/umul.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/urem.S: New file.

	* sysdeps/sparc/sparc32/bsd-_setjmp.S: Dike out.
	* sysdeps/sparc/sparc32/bsd-setjmp.S: Likewise.
	* sysdeps/sparc/sparc32/setjmp.S: Add _setjmp and setjmp entry points.

	* sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S:
	Clean up PIC code.

	* sysdeps/sparc/sparc32/elf/start.S: New file, slightly modified
	from the sparc64 version.
	* sysdeps/sparc/sparc32/elf/start.c: Removed.

	* sysdeps/unix/sysv/linux/sparc/sparc32/init-first.h: Rewrite in
	assembly based on the sparc64 version.

	* sysdeps/sparc/sparc32/fpu/bits/fenv.h: Duh.  Use proper syntax
	for manipulating %fsr.
	* sysdeps/sparc/sparc32/fpu/fpu_control.h: Make IEEE conformance
	be the default.

	* elf/elf.h (HWCAP_SPARC_*): New definitions.
	* elf/rtld.c (_dl_hwcap): New variable.
	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Record AT_HWCAP.

	* sysdeps/unix/sysv/linux/sparc/sparc32/getpagesize.c: New file.
	Attempt to get hold of the page size based on what we might have
	been told at startup time in _dl_pagesize.  This will be obsolete
	when I finish the kernel hooks for a proper sysconf(), stay tuned.

	Sparc 64 merge:

	* sysdeps/sparc/sparc64/dl-machine.h (ELF_FIXUP_RETURN_VALUE): New.
	Figure out the right thing to return based on the .plt format.

	* sysdeps/sparc/sparc64/fpu/fpu_control.h: Update comment.

	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h (__dev_t):
	Should have been 64-bits wide.

	* sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h: sll->sllx,
	optimize for branch delay slot usage.

1997-08-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* csu/Makefile ($(objpfx)crt%.o): Fix a missing *.so -> *.os
	change.

1997-08-20  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/libm-test.c (identities): Change epsilon.

	* sysdeps/i386/fpu/bits/mathinline.h: Correct arguments to fabs,
	fabsf, fabsl, __fabsl.

	* sysdeps/libm-i387/e_remainderl.S: Pop extra value from FPU stack.
	* sysdeps/libm-ieee754/s_csinhl.c: Include <fenv.h>.
1997-08-24 10:55:18 +00:00

200 lines
3.8 KiB
ArmAsm

! SPARC __mpn_mul_1 -- Multiply a limb vector with a limb and store
! the result in a second limb vector.
!
! Copyright (C) 1992, 1993, 1994, 1997 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., 59 Temple Place - Suite 330, Boston,
! MA 02111-1307, USA.
! INPUT PARAMETERS
! RES_PTR o0
! S1_PTR o1
! SIZE o2
! S2_LIMB o3
! ADD CODE FOR SMALL MULTIPLIERS!
!1: ld
! st
!
!2: ld ,a
! addxcc a,a,x
! st x,
!
!3_unrolled:
! ld ,a
! addxcc a,a,x1 ! 2a + cy
! addx %g0,%g0,x2
! addcc a,x1,x ! 3a + c
! st x,
!
! ld ,a
! addxcc a,a,y1
! addx %g0,%g0,y2
! addcc a,y1,x
! st x,
!
!4_unrolled:
! ld ,a
! srl a,2,x1 ! 4a
! addxcc y2,x1,x
! sll a,30,x2
! st x,
!
! ld ,a
! srl a,2,y1
! addxcc x2,y1,y
! sll a,30,y2
! st x,
!
!5_unrolled:
! ld ,a
! srl a,2,x1 ! 4a
! addxcc a,x1,x ! 5a + c
! sll a,30,x2
! addx %g0,x2,x2
! st x,
!
! ld ,a
! srl a,2,y1
! addxcc a,y1,x
! sll a,30,y2
! addx %g0,y2,y2
! st x,
!
!8_unrolled:
! ld ,a
! srl a,3,x1 ! 8a
! addxcc y2,x1,x
! sll a,29,x2
! st x,
!
! ld ,a
! srl a,3,y1
! addxcc x2,y1,y
! sll a,29,y2
! st x,
#include <sysdep.h>
ENTRY(__mpn_mul_1)
! Make S1_PTR and RES_PTR point at the end of their blocks
! and put (- 4 x SIZE) in index/loop counter.
sll %o2,2,%o2
add %o0,%o2,%o4 ! RES_PTR in o4 since o0 is retval
add %o1,%o2,%o1
sub %g0,%o2,%o2
cmp %o3,0xfff
bgu LOC(large)
nop
ld [%o1+%o2],%o5
mov 0,%o0
b LOC(0)
add %o4,-4,%o4
LOC(loop0):
st %g1,[%o4+%o2]
LOC(0): wr %g0,%o3,%y
sra %o5,31,%g2
and %o3,%g2,%g2
andcc %g1,0,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,%o5,%g1
mulscc %g1,0,%g1
sra %g1,20,%g4
sll %g1,12,%g1
rd %y,%g3
srl %g3,20,%g3
or %g1,%g3,%g1
addcc %g1,%o0,%g1
addx %g2,%g4,%o0 ! add sign-compensation and cy to hi limb
addcc %o2,4,%o2 ! loop counter
bne,a LOC(loop0)
ld [%o1+%o2],%o5
retl
st %g1,[%o4+%o2]
LOC(large):
ld [%o1+%o2],%o5
mov 0,%o0
sra %o3,31,%g4 ! g4 = mask of ones iff S2_LIMB < 0
b LOC(1)
add %o4,-4,%o4
LOC(loop):
st %g3,[%o4+%o2]
LOC(1): wr %g0,%o5,%y
and %o5,%g4,%g2 ! g2 = S1_LIMB iff S2_LIMB < 0, else 0
andcc %g0,%g0,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%o3,%g1
mulscc %g1,%g0,%g1
rd %y,%g3
addcc %g3,%o0,%g3
addx %g2,%g1,%o0 ! add sign-compensation and cy to hi limb
addcc %o2,4,%o2 ! loop counter
bne,a LOC(loop)
ld [%o1+%o2],%o5
retl
st %g3,[%o4+%o2]
END(__mpn_mul_1)