glibc/sysdeps/sparc/sparc64/submul_1.S
Ulrich Drepper 9c4c002459 Update.
1998-09-14  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/mach/hurd/dl-cache.c (_dl_unload_cache): New dummy
	function.  Reported by okuji@kuicr.kyoto-u.ac.jp [PR libc/789].

1998-09-15  David S. Miller  <davem@pierdol.cobaltmicro.com>

	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_runtime_setup):
	Add profiling support.
	(TRAMPOLINE_TEMPLATE): New macro.
	(ELF_MACHINE_RUNTIME_TRAMPOLINE): Define in terms of that.
	(RTLD_START): Prettify, and set __libc_stack_end properly.
	(elf_machine_rela) [R_SPARC_COPY]: Remove RTLD_BOOTSTRAP ifndef
	and check for sym being NULL instead.
	* sysdeps/sparc/sparc64/addmul_1.S: Adjust to allocate 192 bytes
	of stack space.
	* sysdeps/sparc/sparc64/lshift.S: Likewise.
	* sysdeps/sparc/sparc64/mul_1.S: Likewise.
	* sysdeps/sparc/sparc64/rshift.S: Likewise.
	* sysdeps/sparc/sparc64/submul_1.S: Likewise.
	* sysdeps/sparc/sparc64/elf/crtbegin.S: Likewise and remove old
	MEDANY code model %g4 usage.
	* sysdeps/sparc/sparc64/elf/crtend.S: Likewise and remove old
	MEDANY code model %g4 usage.
	* sysdeps/sparc/sparc64/elf/start.S: Rework to not use old FULLANY
	code model address formation.
	* sysdeps/sparc/sparc64/dl-machine.h: Don't include link.h, do
	include elf/ldsodefs.h
	(DT_SPARC): Remove.
	(elf_machine_matches_host): It is now EM_SPARCV9.
	(elf_machine_dynamic): Clean up to remove ugly cast.
	(elf_machine_fixup_plt): Rework for new V9 ABI, add support for
	new PLT formats.
	(elf_machine_rela): Don't do anything at all for R_SPARC_NONE.
	Prettify rest of function.
	[R_SPARC_COPY]: Check for sym being NULL.
	[R_SPARC_32]: Handle it.
	[R_SPARC_H44, R_SPARC_M44, R_SPARC_L44]: Handle them for the
	MEDMID code model.
	[R_SPARC_HH22, R_SPARC_HM10, R_SPARC_LM22]: Handle them for the
	MEDANY code model.
	[R_SPARC_NONE]: Remove this case, as it is now checked earlier.
	(elf_machine_runtime_setup): Rewrite for new V9 ABI plt formats.
	Add profiling support.
	(TRAMPOLINE_TEMPLATE): New macro.
	(ELF_MACHINE_RUNTIME_TRAMPOLINE): Define in terms of that.
	(RTLD_START): Prettify and set __libc_stack_end.
	* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h (SA_SIGINFO):
	Define.
	* sysdeps/unix/sysv/linux/sparc/bits/signum.h (_NSIG): Set to 64.
	(SIGRTMIN, SIGRTMAX, __SIGRTMIN, __SIGRTMAX): Define.
	* sysdeps/unix/sysv/linux/sparc/sparc32/brk.c (__brk): Remove
	unused variable scratch.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
	(__syscall_rt_sigaction, __rt_sigreturn_stub, __sigreturn_stub):
	Declare.
	(__sigaction): Rewrite rt_sigaction case to pass correct sigreturn
	stub to rt_sigaction syscalls.  Rewrite non-rt case to use correct
	old format kernel sigaction structures.
	* sysdeps/unix/sysv/linux/sparc/sparc64/ucontext.h: Move...
	* sysdeps/unix/sysv/linux/sparc/sparc64/sys/ucontext.h: to here.
	* sysdeps/unix/sysv/linux/sparc/sparc64/Dist: Remove ucontext.h
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h: Fix
	ucontext include.
	(_JMPBUF_UNWINDS): Define.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h: Declare
	statfs64 structure, which is exactly the same as the normal one.
	* sysdeps/unix/sysv/linux/sparc/sparc64/brk.S: Allocate 192 bytes
	of stack.  Use correct syscall trap number.  Add branch prediction
	settings to branch instructions.  Remove old MEDANY code model %g4
	referneces for non-PIC.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add
	__libc_longjmp and __libc_siglongjmp strong aliases.
	* sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c (__readdir64):
	Also define to __no__readdir64_decl around readdir.c inclusion.
	(__readdir64): Add strong alias.
	* sysdeps/unix/sysv/linux/sparc/sparc64/socket.S: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (getrlimit):
	Set strong and weak names properly.

1998-09-16 11:25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/Makefile (AWK): Default to gawk if standalone.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile (distribute): Undo last change.
	* Make-dist (+tsrc) [not subdir]: Also include indirection headers
	for sysdep headers.
	(+subdir-headers): Removed, unused.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdio-common/Makefile ($(inst_includedir)/bits/stdio_lim.h): Use
	$(do-install).

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules ($(+sysdir_pfx)sysd-Makefile): Don't check for
	absolute name in $(config-sysdirs), can never happen.
	($(+sysdir_pfx)sysd-rules): Likewise.
	* Makeconfig (full-config-sysdirs): Likewise.
	(all-Subdirs-files): Prepend $(..).

	* configure.in: Don't check for absolute name in $add_ons_pfx, can
	not happen.  Let --enable-add-ons=yes work if no add-ons actually
	exist.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Rules ($(common-objpfx)bits/stdio_%.h): Remove extra
	continuations in command.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/oldstdfiles.c (_IO_stdin_used): Update declaration.
1998-09-16 17:54:34 +00:00

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ArmAsm

/* SPARC v9 __mpn_submul_1 -- Multiply a limb vector with a single limb and
subtract the product from a second limb vector.
Copyright (C) 1996 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. */
#include <sysdep.h>
/* INPUT PARAMETERS
res_ptr o0
s1_ptr o1
size o2
s2_limb o3 */
ENTRY(__mpn_submul_1)
!#PROLOGUE# 0
save %sp,-192,%sp
!#PROLOGUE# 1
sub %g0,%i2,%o7
sllx %o7,3,%g5
sub %i1,%g5,%o3
sub %i0,%g5,%o4
mov 0,%o0 ! zero cy_limb
srl %i3,0,%o1 ! extract low 32 bits of s2_limb
srlx %i3,32,%i3 ! extract high 32 bits of s2_limb
mov 1,%o2
sllx %o2,32,%o2 ! o2 = 0x100000000
! hi !
! mid-1 !
! mid-2 !
! lo !
.Loop:
sllx %o7,3,%g1
ldx [%o3+%g1],%g5
srl %g5,0,%i0 ! zero hi bits
srlx %g5,32,%g5
mulx %o1,%i0,%i4 ! lo product
mulx %i3,%i0,%i1 ! mid-1 product
mulx %o1,%g5,%l2 ! mid-2 product
mulx %i3,%g5,%i5 ! hi product
srlx %i4,32,%i0 ! extract high 32 bits of lo product...
add %i1,%i0,%i1 ! ...and add it to the mid-1 product
addcc %i1,%l2,%i1 ! add mid products
mov 0,%l0 ! we need the carry from that add...
movcs %xcc,%o2,%l0 ! ...compute it and...
add %i5,%l0,%i5 ! ...add to bit 32 of the hi product
sllx %i1,32,%i0 ! align low bits of mid product
srl %i4,0,%g5 ! zero high 32 bits of lo product
add %i0,%g5,%i0 ! combine into low 64 bits of result
srlx %i1,32,%i1 ! extract high bits of mid product...
add %i5,%i1,%i1 ! ...and add them to the high result
addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result
mov 0,%g5
movcs %xcc,1,%g5
add %o7,1,%o7
ldx [%o4+%g1],%l1
subcc %l1,%i0,%i0
movcs %xcc,1,%g5
stx %i0,[%o4+%g1]
brnz %o7,.Loop
add %i1,%g5,%o0 ! compute new cy_limb
mov %o0,%i0
jmpl %i7+8,%g0
restore
END(__mpn_submul_1)