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author | Ulrich Drepper <drepper@redhat.com> | 1997-08-29 21:01:47 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-08-29 21:01:47 +0000 |
commit | 800d775e426b9c0af63f711b79b09bf540c97456 (patch) | |
tree | ff7858571c81f2e6077c5e35b465494052984876 /sysdeps/powerpc/sub_n.s | |
parent | 39e16978c3b4ac8eaf2201fac56316623910d9da (diff) | |
download | glibc-800d775e426b9c0af63f711b79b09bf540c97456.zip glibc-800d775e426b9c0af63f711b79b09bf540c97456.tar.gz glibc-800d775e426b9c0af63f711b79b09bf540c97456.tar.bz2 |
Update.cvs/libc-ud-970829
1997-08-29 21:45 Ulrich Drepper <drepper@cygnus.com>
* sunrpc/auth_des.c: New file. Copied from former secure_rpc add-on.
* sunrpc/authdes_prot.c: New file. Likewise.
* sunrpc/des.h: New file. Likewise.
* sunrpc/des_crypt.c: New file. Likewise.
* sunrpc/des_soft.c: New file. Likewise.
* sunrpc/key_call.c: New file. Likewise.
* sunrpc/key_prot.c: New file. Likewise.
* sunrpc/netname.c: New file. Likewise.
* sunrpc/openchild.c: New file. Likewise.
* sunrpc/rtime.c: New file. Likewise.
* sunrpc/svc_auth.c: New file. Likewise.
* sunrpc/svcauth_des.c: New file. Likewise.
* sunrpc/xcrypt.c: New file. Likewise.
* sunrpc/rpc/auth.h: New file. Likewise.
* sunrpc/rpc/auth_des.h: New file. Likewise.
* sunrpc/rpc/des_crypt.h: New file. Likewise.
* sunrpc/rpc/key_prot.h: New file. Likewise.
* sunrpc/rpcsvc/key_prot.x: New file. Likewise.
* sysdeps/generic/svc_auth.h: Removed.
* sysdeps/generic/rpc/auth.h: Removed.
* sysdeps/generic/rpc/auth_des.h: Removed.
* sysdeps/stub/des_impl.c: New file. Stub version for DES.
* sunrpc/Makefile (rpcsvc): Add keyprot.x.
(headers): Add des_crypt.h and key_prot.h.
(routines): Add auth_des, authdes_prot, des_crypt, des_impl, des_soft,
key_call, key_prot, netname, openchild, rtime, svcauth_des, xcrypt.
(distribute): Add des.h.
* db2/Makefile: Add all headers and other files to distribute.
(others): Add db_printlog.
* sysdeps/mach/hurd/Dist: Add net/* headers.
* sysdeps/mach/hurd/mips/Dist: New file.
* sysdeps/powerpc/Dist: Add fe_nomask.c and t_sqrt.c.
* sysdeps/sparc/Dist: Add sys/trap.h.
* sysdeps/sparc/sparc32/Dist: Remove sys/trap.h.
* sysdeps/sparc/sparc32/sparcv8/Dist: New file.
* sysdeps/unix/sysv/linux/mips/Dist: Add sgidefs.h.
* sysdeps/unix/sysv/linux/sparc/Dist: Add sys/trap.h.
* sysdeps/unix/sysv/linux/sparc/sparc32/Dist: Remove sys/trap.h.
Add previously missing assembler files for PPC.
* sysdeps/powerpc/add_n.s: New file.
* sysdeps/powerpc/addmul_1.s: New file.
* sysdeps/powerpc/lshift.s: New file.
* sysdeps/powerpc/memset.s: New file.
* sysdeps/powerpc/mul_1.s: New file.
* sysdeps/powerpc/rshift.s: New file.
* sysdeps/powerpc/strchr.s: New file.
* sysdeps/powerpc/strcmp.s: New file.
* sysdeps/powerpc/sub_n.s: New file.
* sysdeps/powerpc/submul_1.s: New file.
1997-08-28 18:42 Thorsten Kukuk <kukuk@uni-paderborn.de>
* nis/nis_server.c: Rewritten to fix a lot of bugs.
1997-08-28 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* md5-crypt/Makefile (LDFLAGS-md5crypt.so, libmd5crypt-map): New
variables.
in NLSPATH environment variable. Patch by HJ Lu <hjl@gnu.ai.mit.edu>.
Diffstat (limited to 'sysdeps/powerpc/sub_n.s')
-rw-r--r-- | sysdeps/powerpc/sub_n.s | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/sysdeps/powerpc/sub_n.s b/sysdeps/powerpc/sub_n.s new file mode 100644 index 0000000..8711bf9 --- /dev/null +++ b/sysdeps/powerpc/sub_n.s @@ -0,0 +1,69 @@ + # Subtract two limb vectors of equal, non-zero length for PowerPC. + # Copyright (C) 1997 Free Software Foundation, Inc. + # This file is part of the GNU C Library. + # + # The GNU C 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 C 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 C 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. + + # mp_limb_t mpn_sub_n (mp_ptr res_ptr, mp_srcptr s1_ptr, mp_srcptr s2_ptr, + # mp_size_t size) + # Calculate s1-s2 and put result in res_ptr; return borrow, 0 or 1. + + # Note on optimisation: This code is optimal for the 601. Almost every other + # possible 2-unrolled inner loop will not be. Also, watch out for the + # alignment... + + .align 3 + .globl __mpn_sub_n + .type __mpn_sub_n,@function + nop +__mpn_sub_n: + # Set up for loop below. + mtcrf 0x01,%r6 + srwi. %r7,%r6,1 + mtctr %r7 + bt 31,2f + + # Set the carry (clear the borrow). + subfc %r0,%r0,%r0 + # Adjust pointers for loop. + addi %r3,%r3,-4 + addi %r4,%r4,-4 + addi %r5,%r5,-4 + b 0f + +2: lwz %r7,0(%r5) + lwz %r6,0(%r4) + subfc %r6,%r7,%r6 + stw %r6,0(%r3) + beq 1f + + # Align start of loop to an odd word boundary to guarantee that the + # last two words can be fetched in one access (for 601). This turns + # out to be important. +0: + lwz %r9,4(%r4) + lwz %r8,4(%r5) + lwzu %r6,8(%r4) + lwzu %r7,8(%r5) + subfe %r8,%r8,%r9 + stw %r8,4(%r3) + subfe %r6,%r7,%r6 + stwu %r6,8(%r3) + bdnz 0b + # return the borrow +1: subfe %r3,%r3,%r3 + neg %r3,%r3 + blr |