diff options
Diffstat (limited to 'ports/sysdeps/hppa/hppa1.1')
| -rw-r--r-- | ports/sysdeps/hppa/hppa1.1/Implies | 3 | ||||
| -rw-r--r-- | ports/sysdeps/hppa/hppa1.1/addmul_1.S | 103 | ||||
| -rw-r--r-- | ports/sysdeps/hppa/hppa1.1/mul_1.S | 99 | ||||
| -rw-r--r-- | ports/sysdeps/hppa/hppa1.1/s_signbit.c | 34 | ||||
| -rw-r--r-- | ports/sysdeps/hppa/hppa1.1/submul_1.S | 112 | ||||
| -rw-r--r-- | ports/sysdeps/hppa/hppa1.1/udiv_qrnnd.S | 77 |
6 files changed, 428 insertions, 0 deletions
diff --git a/ports/sysdeps/hppa/hppa1.1/Implies b/ports/sysdeps/hppa/hppa1.1/Implies new file mode 100644 index 0000000000..780c4e2467 --- /dev/null +++ b/ports/sysdeps/hppa/hppa1.1/Implies @@ -0,0 +1,3 @@ +wordsize-32 +ieee754/flt-32 +ieee754/dbl-64 diff --git a/ports/sysdeps/hppa/hppa1.1/addmul_1.S b/ports/sysdeps/hppa/hppa1.1/addmul_1.S new file mode 100644 index 0000000000..ce1137bb99 --- /dev/null +++ b/ports/sysdeps/hppa/hppa1.1/addmul_1.S @@ -0,0 +1,103 @@ +;! HP-PA-1.1 __mpn_addmul_1 -- Multiply a limb vector with a limb and +;! add the result to a second limb vector. + +;! Copyright (C) 1992, 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 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. If not, see +;! <http://www.gnu.org/licenses/>. + + +;! INPUT PARAMETERS +;! res_ptr r26 +;! s1_ptr r25 +;! size r24 +;! s2_limb r23 + +;! This runs at 11 cycles/limb on a PA7000. With the used instructions, it +;! can not become faster due to data cache contention after a store. On the +;! PA7100 it runs at 10 cycles/limb, and that can not be improved either, +;! since only the xmpyu does not need the integer pipeline, so the only +;! dual-issue we will get are addc+xmpyu. Unrolling could gain a cycle/limb +;! on the PA7100. + +;! There are some ideas described in mul_1.s that applies to this code too. + + .text + .export __mpn_addmul_1 +__mpn_addmul_1: + .proc + .callinfo frame=64,no_calls + .entry + + ldo 64(%r30),%r30 + fldws,ma 4(%r25),%fr5 + stw %r23,-16(%r30) ;! move s2_limb ... + addib,= -1,%r24,L$just_one_limb + fldws -16(%r30),%fr4 ;! ... into fr4 + add %r0,%r0,%r0 ;! clear carry + xmpyu %fr4,%fr5,%fr6 + fldws,ma 4(%r25),%fr7 + fstds %fr6,-16(%r30) + xmpyu %fr4,%fr7,%fr8 + ldw -12(%r30),%r20 ;! least significant limb in product + ldw -16(%r30),%r28 + + fstds %fr8,-16(%r30) + addib,= -1,%r24,L$end + ldw -12(%r30),%r1 + +;! Main loop +L$loop: + ldws 0(%r26),%r29 + fldws,ma 4(%r25),%fr5 + add %r29,%r20,%r20 + stws,ma %r20,4(%r26) + addc %r28,%r1,%r20 + xmpyu %fr4,%fr5,%fr6 + ldw -16(%r30),%r28 + fstds %fr6,-16(%r30) + addc %r0,%r28,%r28 + addib,<> -1,%r24,L$loop + ldw -12(%r30),%r1 + +L$end: + ldw 0(%r26),%r29 + add %r29,%r20,%r20 + stws,ma %r20,4(%r26) + addc %r28,%r1,%r20 + ldw -16(%r30),%r28 + ldws 0(%r26),%r29 + addc %r0,%r28,%r28 + add %r29,%r20,%r20 + stws,ma %r20,4(%r26) + addc %r0,%r28,%r28 + bv 0(%r2) + ldo -64(%r30),%r30 + +L$just_one_limb: + xmpyu %fr4,%fr5,%fr6 + ldw 0(%r26),%r29 + fstds %fr6,-16(%r30) + ldw -12(%r30),%r1 + ldw -16(%r30),%r28 + add %r29,%r1,%r20 + stw %r20,0(%r26) + addc %r0,%r28,%r28 + bv 0(%r2) + ldo -64(%r30),%r30 + + .exit + .procend diff --git a/ports/sysdeps/hppa/hppa1.1/mul_1.S b/ports/sysdeps/hppa/hppa1.1/mul_1.S new file mode 100644 index 0000000000..53abc09550 --- /dev/null +++ b/ports/sysdeps/hppa/hppa1.1/mul_1.S @@ -0,0 +1,99 @@ +;! HP-PA-1.1 __mpn_mul_1 -- Multiply a limb vector with a limb and store +;! the result in a second limb vector. + +;! Copyright (C) 1992, 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 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. If not, see +;! <http://www.gnu.org/licenses/>. + + +;! INPUT PARAMETERS +;! res_ptr r26 +;! s1_ptr r25 +;! size r24 +;! s2_limb r23 + +;! This runs at 9 cycles/limb on a PA7000. With the used instructions, it can +;! not become faster due to data cache contention after a store. On the +;! PA7100 it runs at 7 cycles/limb, and that can not be improved either, since +;! only the xmpyu does not need the integer pipeline, so the only dual-issue +;! we will get are addc+xmpyu. Unrolling would not help either CPU. + +;! We could use fldds to read two limbs at a time from the S1 array, and that +;! could bring down the times to 8.5 and 6.5 cycles/limb for the PA7000 and +;! PA7100, respectively. We don't do that since it does not seem worth the +;! (alignment) troubles... + +;! At least the PA7100 is rumored to be able to deal with cache-misses +;! without stalling instruction issue. If this is true, and the cache is +;! actually also lockup-free, we should use a deeper software pipeline, and +;! load from S1 very early; (The loads and stores to -12(sp) will surely be +;! in the cache.) + + .text + .export __mpn_mul_1 +__mpn_mul_1: + .proc + .callinfo frame=64,no_calls + .entry + + ldo 64(%r30),%r30 + fldws,ma 4(%r25),%fr5 + stw %r23,-16(%r30) ;! move s2_limb ... + addib,= -1,%r24,L$just_one_limb + fldws -16(%r30),%fr4 ;! ... into fr4 + add %r0,%r0,%r0 ;! clear carry + xmpyu %fr4,%fr5,%fr6 + fldws,ma 4(%r25),%fr7 + fstds %fr6,-16(%r30) + xmpyu %fr4,%fr7,%fr8 + ldw -12(%r30),%r20 ;! least significant limb in product + ldw -16(%r30),%r28 + + fstds %fr8,-16(%r30) + addib,= -1,%r24,L$end + ldw -12(%r30),%r1 + +;! Main loop +L$loop: + fldws,ma 4(%r25),%fr5 + stws,ma %r20,4(%r26) + addc %r28,%r1,%r20 + xmpyu %fr4,%fr5,%fr6 + ldw -16(%r30),%r28 + fstds %fr6,-16(%r30) + addib,<> -1,%r24,L$loop + ldw -12(%r30),%r1 + +L$end: + stws,ma %r20,4(%r26) + addc %r28,%r1,%r20 + ldw -16(%r30),%r28 + stws,ma %r20,4(%r26) + addc %r0,%r28,%r28 + bv 0(%r2) + ldo -64(%r30),%r30 + +L$just_one_limb: + xmpyu %fr4,%fr5,%fr6 + fstds %fr6,-16(%r30) + ldw -16(%r30),%r28 + ldo -64(%r30),%r30 + bv 0(%r2) + fstws %fr6R,0(%r26) + + .exit + .procend diff --git a/ports/sysdeps/hppa/hppa1.1/s_signbit.c b/ports/sysdeps/hppa/hppa1.1/s_signbit.c new file mode 100644 index 0000000000..3e298a29df --- /dev/null +++ b/ports/sysdeps/hppa/hppa1.1/s_signbit.c @@ -0,0 +1,34 @@ +/* Return nonzero value if number is negative. + Copyright (C) 1997, 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C 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 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <math.h> + +#include <math_private.h> + +int +__signbit (double x) +{ + int32_t hx; + + GET_HIGH_WORD (hx, x); + return hx & 0x80000000; +} +#ifdef NO_LONG_DOUBLE +strong_alias (__signbit, __signbitl) +#endif diff --git a/ports/sysdeps/hppa/hppa1.1/submul_1.S b/ports/sysdeps/hppa/hppa1.1/submul_1.S new file mode 100644 index 0000000000..910745243c --- /dev/null +++ b/ports/sysdeps/hppa/hppa1.1/submul_1.S @@ -0,0 +1,112 @@ +;! HP-PA-1.1 __mpn_submul_1 -- Multiply a limb vector with a limb and +;! subtract the result from a second limb vector. + +;! Copyright (C) 1992, 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 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. If not, see +;! <http://www.gnu.org/licenses/>. + + +;! INPUT PARAMETERS +;! res_ptr r26 +;! s1_ptr r25 +;! size r24 +;! s2_limb r23 + +;! This runs at 12 cycles/limb on a PA7000. With the used instructions, it +;! can not become faster due to data cache contention after a store. On the +;! PA7100 it runs at 11 cycles/limb, and that can not be improved either, +;! since only the xmpyu does not need the integer pipeline, so the only +;! dual-issue we will get are addc+xmpyu. Unrolling could gain a cycle/limb +;! on the PA7100. + +;! There are some ideas described in mul_1.s that applies to this code too. + +;! It seems possible to make this run as fast as __mpn_addmul_1, if we use +;! sub,>>= %r29,%r20,%r22 +;! addi 1,%r28,%r28 +;! but that requires reworking the hairy software pipeline... + + .text + .export __mpn_submul_1 +__mpn_submul_1: + .proc + .callinfo frame=64,no_calls + .entry + + ldo 64(%r30),%r30 + fldws,ma 4(%r25),%fr5 + stw %r23,-16(%r30) ;! move s2_limb ... + addib,= -1,%r24,L$just_one_limb + fldws -16(%r30),%fr4 ;! ... into fr4 + add %r0,%r0,%r0 ;! clear carry + xmpyu %fr4,%fr5,%fr6 + fldws,ma 4(%r25),%fr7 + fstds %fr6,-16(%r30) + xmpyu %fr4,%fr7,%fr8 + ldw -12(%r30),%r20 ;! least significant limb in product + ldw -16(%r30),%r28 + + fstds %fr8,-16(%r30) + addib,= -1,%r24,L$end + ldw -12(%r30),%r1 + +;! Main loop +L$loop: + ldws 0(%r26),%r29 + fldws,ma 4(%r25),%fr5 + sub %r29,%r20,%r22 + add %r22,%r20,%r0 + stws,ma %r22,4(%r26) + addc %r28,%r1,%r20 + xmpyu %fr4,%fr5,%fr6 + ldw -16(%r30),%r28 + fstds %fr6,-16(%r30) + addc %r0,%r28,%r28 + addib,<> -1,%r24,L$loop + ldw -12(%r30),%r1 + +L$end: + ldw 0(%r26),%r29 + sub %r29,%r20,%r22 + add %r22,%r20,%r0 + stws,ma %r22,4(%r26) + addc %r28,%r1,%r20 + ldw -16(%r30),%r28 + ldws 0(%r26),%r29 + addc %r0,%r28,%r28 + sub %r29,%r20,%r22 + add %r22,%r20,%r0 + stws,ma %r22,4(%r26) + addc %r0,%r28,%r28 + bv 0(%r2) + ldo -64(%r30),%r30 + +L$just_one_limb: + xmpyu %fr4,%fr5,%fr6 + ldw 0(%r26),%r29 + fstds %fr6,-16(%r30) + ldw -12(%r30),%r1 + ldw -16(%r30),%r28 + sub %r29,%r1,%r22 + add %r22,%r1,%r0 + stw %r22,0(%r26) + addc %r0,%r28,%r28 + bv 0(%r2) + ldo -64(%r30),%r30 + + .exit + .procend diff --git a/ports/sysdeps/hppa/hppa1.1/udiv_qrnnd.S b/ports/sysdeps/hppa/hppa1.1/udiv_qrnnd.S new file mode 100644 index 0000000000..bcb3a86dd0 --- /dev/null +++ b/ports/sysdeps/hppa/hppa1.1/udiv_qrnnd.S @@ -0,0 +1,77 @@ +;! HP-PA __udiv_qrnnd division support, used from longlong.h. +;! This version runs fast on PA 7000 and later. + +;! 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 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. If not, see +;! <http://www.gnu.org/licenses/>. + + +;! INPUT PARAMETERS +;! rem_ptr gr26 +;! n1 gr25 +;! n0 gr24 +;! d gr23 + + .text +L$0000: + .word 0x43f00000 + .word 0x0 + .export __udiv_qrnnd +__udiv_qrnnd: + .proc + .callinfo frame=64,no_calls + .entry + ldo 64(%r30),%r30 + + stws %r25,-16(%r30) ;! n_hi + stws %r24,-12(%r30) ;! n_lo + b,l L$0,%r1 + ldo L$0000-L$0(%r1),%r1 +L$0: + fldds -16(%r30),%fr5 + stws %r23,-12(%r30) + comib,<= 0,%r25,L$1 + fcnvxf,dbl,dbl %fr5,%fr5 + fldds 0(%r1),%fr4 + fadd,dbl %fr4,%fr5,%fr5 +L$1: + fcpy,sgl %fr0,%fr6L + fldws -12(%r30),%fr6R + fcnvxf,dbl,dbl %fr6,%fr4 + + fdiv,dbl %fr5,%fr4,%fr5 + + fcnvfx,dbl,dbl %fr5,%fr4 + fstws %fr4R,-16(%r30) + xmpyu %fr4R,%fr6R,%fr6 + ldws -16(%r30),%r28 + fstds %fr6,-16(%r30) + ldws -12(%r30),%r21 + ldws -16(%r30),%r20 + sub %r24,%r21,%r22 + subb %r25,%r20,%r1 + comib,= 0,%r1,L$2 + ldo -64(%r30),%r30 + + add %r22,%r23,%r22 + ldo -1(%r28),%r28 +L$2: + bv 0(%r2) + stws %r22,0(%r26) + + .exit + .procend |