X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gmp%2Fmpn%2Fpa32%2Fhppa1_1%2Fpa7100%2Frshift.asm;fp=gmp%2Fmpn%2Fpa32%2Fhppa1_1%2Fpa7100%2Frshift.asm;h=ed7313b5fcb303c45b20083caca7490055831fa9;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gmp/mpn/pa32/hppa1_1/pa7100/rshift.asm b/gmp/mpn/pa32/hppa1_1/pa7100/rshift.asm new file mode 100644 index 00000000..ed7313b5 --- /dev/null +++ b/gmp/mpn/pa32/hppa1_1/pa7100/rshift.asm @@ -0,0 +1,82 @@ +dnl HP-PA mpn_rshift -- Shift a number right. +dnl Optimized for the PA7100, where is runs at 3.25 cycles/limb. + +dnl Copyright 1992, 1994, 2000, 2001, 2002, 2003 Free Software Foundation, +dnl Inc. + +dnl This file is part of the GNU MP Library. + +dnl The GNU MP Library is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU Lesser General Public License as published +dnl by the Free Software Foundation; either version 3 of the License, or (at +dnl your option) any later version. + +dnl The GNU MP Library is distributed in the hope that it will be useful, but +dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +dnl License for more details. + +dnl You should have received a copy of the GNU Lesser General Public License +dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. + +include(`../config.m4') + +C INPUT PARAMETERS +C res_ptr r26 +C s_ptr r25 +C size r24 +C cnt r23 + +ASM_START() +PROLOGUE(mpn_rshift) + ldws,ma 4(0,%r25),%r22 + mtsar %r23 + addib,= -1,%r24,L(0004) + vshd %r22,%r0,%r28 C compute carry out limb + ldws,ma 4(0,%r25),%r29 + addib,<= -5,%r24,L(rest) + vshd %r29,%r22,%r20 + +LDEF(loop) + ldws,ma 4(0,%r25),%r22 + stws,ma %r20,4(0,%r26) + vshd %r22,%r29,%r20 + ldws,ma 4(0,%r25),%r29 + stws,ma %r20,4(0,%r26) + vshd %r29,%r22,%r20 + ldws,ma 4(0,%r25),%r22 + stws,ma %r20,4(0,%r26) + vshd %r22,%r29,%r20 + ldws,ma 4(0,%r25),%r29 + stws,ma %r20,4(0,%r26) + addib,> -4,%r24,L(loop) + vshd %r29,%r22,%r20 + +LDEF(rest) + addib,= 4,%r24,L(end1) + nop + +LDEF(eloop) + ldws,ma 4(0,%r25),%r22 + stws,ma %r20,4(0,%r26) + addib,<= -1,%r24,L(end2) + vshd %r22,%r29,%r20 + ldws,ma 4(0,%r25),%r29 + stws,ma %r20,4(0,%r26) + addib,> -1,%r24,L(eloop) + vshd %r29,%r22,%r20 + +LDEF(end1) + stws,ma %r20,4(0,%r26) + vshd %r0,%r29,%r20 + bv 0(%r2) + stw %r20,0(0,%r26) + +LDEF(end2) + stws,ma %r20,4(0,%r26) + +LDEF(0004) + vshd %r0,%r22,%r20 + bv 0(%r2) + stw %r20,0(0,%r26) +EPILOGUE()