diff options
Diffstat (limited to 'rts/gmp/mpn/pa64/mul_1.S')
| -rw-r--r-- | rts/gmp/mpn/pa64/mul_1.S | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/rts/gmp/mpn/pa64/mul_1.S b/rts/gmp/mpn/pa64/mul_1.S new file mode 100644 index 0000000000..ab310c1264 --- /dev/null +++ b/rts/gmp/mpn/pa64/mul_1.S @@ -0,0 +1,158 @@ +; HP-PA 2.0 64-bit __gmpn_mul_1 -- Multiply a limb vector with a limb and +; store the result in a second limb vector. + +; Copyright (C) 1998, 1999, 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 +#define rptr %r26 +#define sptr %r25 +#define size %r24 +#define s2limb -56(%r30) + +; This runs at 11 cycles/limb on a PA8000. It might be possible to make +; it faster, but the PA8000 pipeline is not publically documented and it +; is very complex to reverse engineer + +#define t1 %r19 +#define rlimb %r20 +#define hi %r21 +#define lo %r22 +#define m0 %r28 +#define m1 %r3 +#define cylimb %r29 +#define t3 %r4 +#define t2 %r6 +#define t5 %r23 +#define t4 %r31 + .level 2.0n + .code + .export __gmpn_mul_1,entry +__gmpn_mul_1 + .proc + .callinfo frame=128,no_calls + .entry + fldd -56(%r30),%fr5 ; s2limb passed on stack + ldo 128(%r30),%r30 + add %r0,%r0,cylimb ; clear cy and cylimb + + std %r3,-96(%r30) + std %r4,-88(%r30) + std %r5,-80(%r30) + std %r6,-72(%r30) + depdi,z 1,31,1,%r5 + + fldd 0(sptr),%fr4 + ldo 8(sptr),sptr + + xmpyu %fr5R,%fr4R,%fr6 + fstd %fr6,-128(%r30) + xmpyu %fr5R,%fr4L,%fr7 + fstd %fr7,-120(%r30) + xmpyu %fr5L,%fr4R,%fr8 + fstd %fr8,-112(%r30) + xmpyu %fr5L,%fr4L,%fr9 + fstd %fr9,-104(%r30) + ldd -128(%r30),lo ; lo = low 64 bit of product + ldd -120(%r30),m0 ; m0 = mid0 64 bit of product + ldd -112(%r30),m1 ; m1 = mid1 64 bit of product + ldd -104(%r30),hi ; hi = high 64 bit of product + addib,= -1,%r24,L$end1 + nop + fldd 0(sptr),%fr4 + ldo 8(sptr),sptr + addib,= -1,%r24,L$end2 + nop +L$loop + xmpyu %fr5R,%fr4R,%fr6 + fstd %fr6,-128(%r30) + xmpyu %fr5R,%fr4L,%fr7 + fstd %fr7,-120(%r30) + xmpyu %fr5L,%fr4R,%fr8 + fstd %fr8,-112(%r30) + xmpyu %fr5L,%fr4L,%fr9 + fstd %fr9,-104(%r30) + extrd,u lo,31,32,t1 ; t1 = hi32(lo) + extrd,u lo,63,32,t4 ; t4 = lo32(lo) + add,l m0,t1,t1 ; t1 += m0 + add,l,*nuv m1,t1,t1 ; t1 += m1 + add,l %r5,hi,hi ; propagate carry + extrd,u t1,31,32,t2 ; t2 = hi32(t1) + depd,z t1,31,32,t5 ; t5 = lo32(t1) + add,l t5,t4,t4 ; t4 += lo32(t1) + ldd -128(%r30),lo ; lo = low 64 bit of product + add cylimb,t4,t3 + ldd -120(%r30),m0 ; m0 = mid0 64 bit of product + add,dc t2,hi,cylimb + ldd -112(%r30),m1 ; m1 = mid1 64 bit of product + ldd -104(%r30),hi ; hi = high 64 bit of product + fldd 0(sptr),%fr4 + ldo 8(sptr),sptr + std t3,0(rptr) + addib,<> -1,%r24,L$loop + ldo 8(rptr),rptr +L$end2 + xmpyu %fr5R,%fr4R,%fr6 + fstd %fr6,-128(%r30) + xmpyu %fr5R,%fr4L,%fr7 + fstd %fr7,-120(%r30) + xmpyu %fr5L,%fr4R,%fr8 + fstd %fr8,-112(%r30) + xmpyu %fr5L,%fr4L,%fr9 + fstd %fr9,-104(%r30) + extrd,u lo,31,32,t1 ; t1 = hi32(lo) + extrd,u lo,63,32,t4 ; t4 = lo32(lo) + add,l m0,t1,t1 ; t1 += m0 + add,l,*nuv m1,t1,t1 ; t1 += m0 + add,l %r5,hi,hi ; propagate carry + extrd,u t1,31,32,t2 ; t2 = hi32(t1) + depd,z t1,31,32,t5 ; t5 = lo32(t1) + add,l t5,t4,t4 ; t4 += lo32(t1) + ldd -128(%r30),lo ; lo = low 64 bit of product + add cylimb,t4,t3 + ldd -120(%r30),m0 ; m0 = mid0 64 bit of product + add,dc t2,hi,cylimb + ldd -112(%r30),m1 ; m1 = mid1 64 bit of product + ldd -104(%r30),hi ; hi = high 64 bit of product + std t3,0(rptr) + ldo 8(rptr),rptr +L$end1 + extrd,u lo,31,32,t1 ; t1 = hi32(lo) + extrd,u lo,63,32,t4 ; t2 = lo32(lo) + add,l m0,t1,t1 ; t1 += m0 + add,l,*nuv m1,t1,t1 ; t1 += m0 + add,l %r5,hi,hi ; propagate carry + extrd,u t1,31,32,t2 ; t2 = hi32(t1) + depd,z t1,31,32,t5 ; t5 = lo32(t1) + add,l t5,t4,t4 ; t4 += lo32(t1) + add cylimb,t4,t3 + add,dc t2,hi,cylimb + std t3,0(rptr) + ldo 8(rptr),rptr + + ldd -96(%r30),%r3 + ldd -88(%r30),%r4 + ldd -80(%r30),%r5 + ldd -72(%r30),%r6 + + extrd,u cylimb,31,32,%r28 + bve (%r2) + .exit + ldo -128(%r30),%r30 + .procend |