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author | Roland McGrath <roland@gnu.org> | 1995-10-16 01:37:51 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-10-16 01:37:51 +0000 |
commit | 8f5ca04bc7fd53741d80117df992995ace8f6d2d (patch) | |
tree | e39c13fc198b22ec55647259a8080051988e8c69 /sysdeps/z8000 | |
parent | 5d82cf5c55f56ae10d3b0a205d1fcc7de1cf56a0 (diff) | |
download | glibc-8f5ca04bc7fd53741d80117df992995ace8f6d2d.zip glibc-8f5ca04bc7fd53741d80117df992995ace8f6d2d.tar.gz glibc-8f5ca04bc7fd53741d80117df992995ace8f6d2d.tar.bz2 |
Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* malloc/malloc.c (_malloc_internal): Performance fix. Move
if statement out of loop.
* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster
implementation using GMP functions. Contributed by
Torbjorn Granlund and Ulrich Drepper.
* stdio/test_rdwr.c: Include <errno.h>.
* sysdeps/i386/i586/Implies: New file.
New highly optimized string functions for i[345]86.
* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
* sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
* sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
* sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
* sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
* sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
* sysdeps/i386/i586/strlen.S: New file.
* sysdeps/i386/memchr.c: Removed. There is now an assembler version.
* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
not correspond to used values.
* sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper
around a kernel header file.
* sysdeps/unix/sysv/linux/Dist: Add it.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of
defining ourself we use a kernel header file.
* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
call handler for i586.
* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* malloc/malloc.c (_malloc_internal): Performance fix. Move
if statement out of loop.
* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster
implementation using GMP functions. Contributed by
Torbjorn Granlund and Ulrich Drepper.
* stdio/test_rdwr.c: Include <errno.h>.
* sysdeps/i386/i586/Implies: New file.
New highly optimized string functions for i[345]86.
* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
* sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
* sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
* sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
* sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
* sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
* sysdeps/i386/i586/strlen.S: New file.
* sysdeps/i386/memchr.c: Removed. There is now an assembler version.
* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
not correspond to used values.
* sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper
around a kernel header file.
* sysdeps/unix/sysv/linux/Dist: Add it.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of
defining ourself we use a kernel header file.
* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
call handler for i586.
* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
Diffstat (limited to 'sysdeps/z8000')
-rw-r--r-- | sysdeps/z8000/add_n.s | 52 | ||||
-rw-r--r-- | sysdeps/z8000/mul_1.s | 67 | ||||
-rw-r--r-- | sysdeps/z8000/sub_n.s | 53 |
3 files changed, 172 insertions, 0 deletions
diff --git a/sysdeps/z8000/add_n.s b/sysdeps/z8000/add_n.s new file mode 100644 index 0000000..21efaf5 --- /dev/null +++ b/sysdeps/z8000/add_n.s @@ -0,0 +1,52 @@ +! Z8000 __mpn_add_n -- Add two limb vectors of equal, non-zero length. + +! Copyright (C) 1993, 1994 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., 675 Mass Ave, Cambridge, MA 02139, USA. + + +! INPUT PARAMETERS +! res_ptr r7 +! s1_ptr r6 +! s2_ptr r5 +! size r4 + +! If we are really crazy, we can use push to write a few result words +! backwards, using push just because it is faster than reg+disp. We'd +! then add 2x the number of words written to r7... + + unseg + .text + even + global ___mpn_add_n +___mpn_add_n: + pop r0,@r6 + pop r1,@r5 + add r0,r1 + ld @r7,r0 + dec r4 + jr eq,Lend +Loop: pop r0,@r6 + pop r1,@r5 + adc r0,r1 + inc r7,#2 + ld @r7,r0 + dec r4 + jr ne,Loop +Lend: ld r2,r4 ! use 0 already in r4 + adc r2,r2 + ret t diff --git a/sysdeps/z8000/mul_1.s b/sysdeps/z8000/mul_1.s new file mode 100644 index 0000000..2075225 --- /dev/null +++ b/sysdeps/z8000/mul_1.s @@ -0,0 +1,67 @@ +! Z8000 __mpn_mul_1 -- Multiply a limb vector with a limb and store +! the result in a second limb vector. + +! Copyright (C) 1993, 1994 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., 675 Mass Ave, Cambridge, MA 02139, USA. + + +! INPUT PARAMETERS +! res_ptr r7 +! s1_ptr r6 +! size r5 +! s2_limb r4 + + unseg + .text + even + global ___mpn_mul_1 +___mpn_mul_1: + sub r2,r2 ! zero carry limb + and r4,r4 + jr mi,Lneg + +Lpos: pop r1,@r6 + ld r9,r1 + mult rr8,r4 + and r1,r1 ! shift msb of loaded limb into cy + jr mi,Lp ! branch if loaded limb's msb is set + add r8,r4 ! hi_limb += sign_comp2 +Lp: add r9,r2 ! lo_limb += cy_limb + xor r2,r2 + adc r2,r8 + ld @r7,r9 + inc r7,#2 + dec r5 + jr ne,Lpos + ret t + +Lneg: pop r1,@r6 + ld r9,r1 + mult rr8,r4 + add r8,r1 ! hi_limb += sign_comp1 + and r1,r1 + jr mi,Ln + add r8,r4 ! hi_limb += sign_comp2 +Ln: add r9,r2 ! lo_limb += cy_limb + xor r2,r2 + adc r2,r8 + ld @r7,r9 + inc r7,#2 + dec r5 + jr ne,Lneg + ret t diff --git a/sysdeps/z8000/sub_n.s b/sysdeps/z8000/sub_n.s new file mode 100644 index 0000000..f75ef22 --- /dev/null +++ b/sysdeps/z8000/sub_n.s @@ -0,0 +1,53 @@ +! Z8000 __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and +! store difference in a third limb vector. + +! Copyright (C) 1993, 1994 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., 675 Mass Ave, Cambridge, MA 02139, USA. + + +! INPUT PARAMETERS +! res_ptr r7 +! s1_ptr r6 +! s2_ptr r5 +! size r4 + +! If we are really crazy, we can use push to write a few result words +! backwards, using push just because it is faster than reg+disp. We'd +! then add 2x the number of words written to r7... + + unseg + .text + even + global ___mpn_sub_n +___mpn_sub_n: + pop r0,@r6 + pop r1,@r5 + sub r0,r1 + ld @r7,r0 + dec r4 + jr eq,Lend +Loop: pop r0,@r6 + pop r1,@r5 + sbc r0,r1 + inc r7,#2 + ld @r7,r0 + dec r4 + jr ne,Loop +Lend: ld r2,r4 ! use 0 already in r4 + adc r2,r2 + ret t |