From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/mpn/arm/v7a/cora15/com.asm | 180 +++++++++++++++++++++++++++++++++++ 1 file changed, 180 insertions(+) create mode 100644 gmp-6.3.0/mpn/arm/v7a/cora15/com.asm (limited to 'gmp-6.3.0/mpn/arm/v7a/cora15/com.asm') diff --git a/gmp-6.3.0/mpn/arm/v7a/cora15/com.asm b/gmp-6.3.0/mpn/arm/v7a/cora15/com.asm new file mode 100644 index 0000000..a258afe --- /dev/null +++ b/gmp-6.3.0/mpn/arm/v7a/cora15/com.asm @@ -0,0 +1,180 @@ +dnl ARM mpn_com optimised for A15. + +dnl Contributed to the GNU project by Torbjörn Granlund. + +dnl Copyright 2013 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 StrongARM ? +C XScale ? +C Cortex-A7 ? +C Cortex-A8 ? +C Cortex-A9 2.5 +C Cortex-A15 1.0 + +C This is great A15 core register code, but it is a bit large. +C We use FEEDIN_VARIANT 1 to save some space, but use 8-way unrolling. + +C Architecture requirements: +C v5 - +C v5t - +C v5te ldrd strd +C v6 - +C v6t2 - +C v7a - + +define(`FEEDIN_VARIANT', 1) C alternatives: 0 1 2 +define(`UNROLL', 4x2) C alternatives: 4 4x2 + +define(`rp', `r0') +define(`up', `r1') +define(`n', `r2') + +ASM_START() +PROLOGUE(mpn_com) + push { r4-r5,r8-r9 } + +ifelse(FEEDIN_VARIANT,0,` + ands r12, n, #3 + mov n, n, lsr #2 + beq L(b00a) + tst r12, #1 + beq L(bx0) + ldr r5, [up], #4 + mvn r9, r5 + str r9, [rp], #4 + tst r12, #2 + beq L(b00) +L(bx0): ldrd r4, r5, [up, #0] + sub rp, rp, #8 + b L(lo) +L(b00): tst n, n + beq L(wd1) +L(b00a):ldrd r4, r5, [up], #-8 + sub rp, rp, #16 + b L(mid) +') +ifelse(FEEDIN_VARIANT,1,` + and r12, n, #3 + mov n, n, lsr #2 + tst r12, #1 + beq L(bx0) + ldr r5, [up], #4 + mvn r9, r5 + str r9, [rp], #4 +L(bx0): tst r12, #2 + beq L(b00) + ldrd r4, r5, [up, #0] + sub rp, rp, #8 + b L(lo) +L(b00): tst n, n + beq L(wd1) + ldrd r4, r5, [up], #-8 + sub rp, rp, #16 + b L(mid) +') +ifelse(FEEDIN_VARIANT,2,` + ands r12, n, #3 + mov n, n, lsr #2 + beq L(b00) + cmp r12, #2 + bcc L(b01) + beq L(b10) + +L(b11): ldr r5, [up], #4 + mvn r9, r5 + ldrd r4, r5, [up, #0] + str r9, [rp], #-4 + b L(lo) + +L(b00): ldrd r4, r5, [up], #-8 + sub rp, rp, #16 + b L(mid) + +L(b01): ldr r5, [up], #-4 + mvn r9, r5 + str r9, [rp], #-12 + tst n, n + beq L(wd1) +L(gt1): ldrd r4, r5, [up, #8] + b L(mid) + +L(b10): ldrd r4, r5, [up] + sub rp, rp, #8 + b L(lo) +') + ALIGN(16) +ifelse(UNROLL,4,` +L(top): ldrd r4, r5, [up, #8] + strd r8, r9, [rp, #8] +L(mid): mvn r8, r4 + mvn r9, r5 + ldrd r4, r5, [up, #16]! + strd r8, r9, [rp, #16]! + sub n, n, #1 +L(lo): mvn r8, r4 + mvn r9, r5 + tst n, n + bne L(top) +') +ifelse(UNROLL,4x2,` +L(top): ldrd r4, r5, [up, #8] + strd r8, r9, [rp, #8] +L(mid): mvn r8, r4 + mvn r9, r5 + ldrd r4, r5, [up, #16] + strd r8, r9, [rp, #16] + mvn r8, r4 + mvn r9, r5 + sub n, n, #2 + tst n, n + bmi L(dne) + ldrd r4, r5, [up, #24] + strd r8, r9, [rp, #24] + mvn r8, r4 + mvn r9, r5 + ldrd r4, r5, [up, #32]! + strd r8, r9, [rp, #32]! +L(lo): mvn r8, r4 + mvn r9, r5 + tst n, n + bne L(top) +') + +L(end): strd r8, r9, [rp, #8] +L(wd1): pop { r4-r5,r8-r9 } + bx r14 +ifelse(UNROLL,4x2,` +L(dne): strd r8, r9, [rp, #24] + pop { r4-r5,r8-r9 } + bx r14 +') +EPILOGUE() -- cgit v1.2.3