diff options
Diffstat (limited to 'vendor/gmp-6.3.0/mpn/alpha/lshift.asm')
-rw-r--r-- | vendor/gmp-6.3.0/mpn/alpha/lshift.asm | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/vendor/gmp-6.3.0/mpn/alpha/lshift.asm b/vendor/gmp-6.3.0/mpn/alpha/lshift.asm new file mode 100644 index 0000000..c62a856 --- /dev/null +++ b/vendor/gmp-6.3.0/mpn/alpha/lshift.asm @@ -0,0 +1,182 @@ +dnl Alpha mpn_lshift -- Shift a number left. + +dnl Copyright 1994, 1995, 2000, 2003, 2009 Free Software Foundation, Inc. + +dnl This file is part of the GNU MP Library. +dnl +dnl The GNU MP Library is free software; you can redistribute it and/or modify +dnl it under the terms of either: +dnl +dnl * the GNU Lesser General Public License as published by the Free +dnl Software Foundation; either version 3 of the License, or (at your +dnl option) any later version. +dnl +dnl or +dnl +dnl * the GNU General Public License as published by the Free Software +dnl Foundation; either version 2 of the License, or (at your option) any +dnl later version. +dnl +dnl or both in parallel, as here. +dnl +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 General Public License +dnl for more details. +dnl +dnl You should have received copies of the GNU General Public License and the +dnl GNU Lesser General Public License along with the GNU MP Library. If not, +dnl see https://www.gnu.org/licenses/. + +include(`../config.m4') + +C cycles/limb +C EV4: ? +C EV5: 3.25 +C EV6: 1.75 + +C INPUT PARAMETERS +C rp r16 +C up r17 +C n r18 +C cnt r19 + + +ASM_START() +PROLOGUE(mpn_lshift) + s8addq r18,r17,r17 C make r17 point at end of s1 + ldq r4,-8(r17) C load first limb + subq r31,r19,r20 + s8addq r18,r16,r16 C make r16 point at end of RES + subq r18,1,r18 + and r18,4-1,r28 C number of limbs in first loop + srl r4,r20,r0 C compute function result + + beq r28,L(L0) + subq r18,r28,r18 + + ALIGN(8) +L(top0): + ldq r3,-16(r17) + subq r16,8,r16 + sll r4,r19,r5 + subq r17,8,r17 + subq r28,1,r28 + srl r3,r20,r6 + bis r3,r3,r4 + bis r5,r6,r8 + stq r8,0(r16) + bne r28,L(top0) + +L(L0): sll r4,r19,r24 + beq r18,L(end) +C warm up phase 1 + ldq r1,-16(r17) + subq r18,4,r18 + ldq r2,-24(r17) + ldq r3,-32(r17) + ldq r4,-40(r17) +C warm up phase 2 + srl r1,r20,r7 + sll r1,r19,r21 + srl r2,r20,r8 + beq r18,L(end1) + ldq r1,-48(r17) + sll r2,r19,r22 + ldq r2,-56(r17) + srl r3,r20,r5 + bis r7,r24,r7 + sll r3,r19,r23 + bis r8,r21,r8 + srl r4,r20,r6 + ldq r3,-64(r17) + sll r4,r19,r24 + ldq r4,-72(r17) + subq r18,4,r18 + beq r18,L(end2) + ALIGN(16) +C main loop +L(top): stq r7,-8(r16) + bis r5,r22,r5 + stq r8,-16(r16) + bis r6,r23,r6 + + srl r1,r20,r7 + subq r18,4,r18 + sll r1,r19,r21 + unop C ldq r31,-96(r17) + + srl r2,r20,r8 + ldq r1,-80(r17) + sll r2,r19,r22 + ldq r2,-88(r17) + + stq r5,-24(r16) + bis r7,r24,r7 + stq r6,-32(r16) + bis r8,r21,r8 + + srl r3,r20,r5 + unop C ldq r31,-96(r17) + sll r3,r19,r23 + subq r16,32,r16 + + srl r4,r20,r6 + ldq r3,-96(r17) + sll r4,r19,r24 + ldq r4,-104(r17) + + subq r17,32,r17 + bne r18,L(top) +C cool down phase 2/1 +L(end2): + stq r7,-8(r16) + bis r5,r22,r5 + stq r8,-16(r16) + bis r6,r23,r6 + srl r1,r20,r7 + sll r1,r19,r21 + srl r2,r20,r8 + sll r2,r19,r22 + stq r5,-24(r16) + bis r7,r24,r7 + stq r6,-32(r16) + bis r8,r21,r8 + srl r3,r20,r5 + sll r3,r19,r23 + srl r4,r20,r6 + sll r4,r19,r24 +C cool down phase 2/2 + stq r7,-40(r16) + bis r5,r22,r5 + stq r8,-48(r16) + bis r6,r23,r6 + stq r5,-56(r16) + stq r6,-64(r16) +C cool down phase 2/3 + stq r24,-72(r16) + ret r31,(r26),1 + +C cool down phase 1/1 +L(end1): + sll r2,r19,r22 + srl r3,r20,r5 + bis r7,r24,r7 + sll r3,r19,r23 + bis r8,r21,r8 + srl r4,r20,r6 + sll r4,r19,r24 +C cool down phase 1/2 + stq r7,-8(r16) + bis r5,r22,r5 + stq r8,-16(r16) + bis r6,r23,r6 + stq r5,-24(r16) + stq r6,-32(r16) + stq r24,-40(r16) + ret r31,(r26),1 + +L(end): stq r24,-8(r16) + ret r31,(r26),1 +EPILOGUE(mpn_lshift) +ASM_END() |