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| author | Simon Marlow <simonmar@microsoft.com> | 2006-04-07 02:05:11 +0000 |
|---|---|---|
| committer | Simon Marlow <simonmar@microsoft.com> | 2006-04-07 02:05:11 +0000 |
| commit | 0065d5ab628975892cea1ec7303f968c3338cbe1 (patch) | |
| tree | 8e2afe0ab48ee33cf95009809d67c9649573ef92 /rts/gmp/mpn/z8000x/sub_n.s | |
| parent | 28a464a75e14cece5db40f2765a29348273ff2d2 (diff) | |
| download | haskell-0065d5ab628975892cea1ec7303f968c3338cbe1.tar.gz | |
Reorganisation of the source tree
Most of the other users of the fptools build system have migrated to
Cabal, and with the move to darcs we can now flatten the source tree
without losing history, so here goes.
The main change is that the ghc/ subdir is gone, and most of what it
contained is now at the top level. The build system now makes no
pretense at being multi-project, it is just the GHC build system.
No doubt this will break many things, and there will be a period of
instability while we fix the dependencies. A straightforward build
should work, but I haven't yet fixed binary/source distributions.
Changes to the Building Guide will follow, too.
Diffstat (limited to 'rts/gmp/mpn/z8000x/sub_n.s')
| -rw-r--r-- | rts/gmp/mpn/z8000x/sub_n.s | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/rts/gmp/mpn/z8000x/sub_n.s b/rts/gmp/mpn/z8000x/sub_n.s new file mode 100644 index 0000000000..f416d1d6eb --- /dev/null +++ b/rts/gmp/mpn/z8000x/sub_n.s @@ -0,0 +1,56 @@ +! Z8000 (32 bit limb version) __gmpn_sub_n -- Subtract two limb vectors of the +! same length > 0 and store difference in a third limb vector. + +! Copyright (C) 1993, 1994, 2000 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 Lesser General Public License as published by +! the Free Software Foundation; either version 2.1 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 Lesser General Public +! License for more details. + +! You should have received a copy of the GNU Lesser 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 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... + + segm + .text + even + global ___gmpn_sub_n +___gmpn_sub_n: + popl rr0,@r6 + popl rr8,@r5 + subl rr0,rr8 + ldl @r7,rr0 + dec r4 + jr eq,Lend +Loop: popl rr0,@r6 + popl rr8,@r5 + sbc r1,r9 + sbc r0,r8 + inc r7,#4 + ldl @r7,rr0 + dec r4 + jr ne,Loop +Lend: ld r2,r4 ! use 0 already in r4 + ld r3,r4 + adc r2,r2 + ret t |