diff options
Diffstat (limited to 'gmp-6.3.0/mpn/arm/aorsmul_1.asm')
| -rw-r--r-- | gmp-6.3.0/mpn/arm/aorsmul_1.asm | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpn/arm/aorsmul_1.asm b/gmp-6.3.0/mpn/arm/aorsmul_1.asm new file mode 100644 index 0000000..b02fbb3 --- /dev/null +++ b/gmp-6.3.0/mpn/arm/aorsmul_1.asm @@ -0,0 +1,135 @@ +dnl ARM mpn_addmul_1 and mpn_submul_1. + +dnl Copyright 1998, 2000, 2001, 2003, 2012 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 5.25 +C Cortex-A15 4 + +define(`rp', `r0') +define(`up', `r1') +define(`n', `r2') +define(`vl', `r3') +define(`rl', `r12') +define(`ul', `r6') +define(`r', `lr') + +ifdef(`OPERATION_addmul_1', ` + define(`ADDSUB', adds) + define(`ADDSUBC', adcs) + define(`CLRRCY', `mov $1, #0 + adds r0, r0, #0') + define(`RETVAL', `adc r0, r4, #0') + define(`func', mpn_addmul_1)') +ifdef(`OPERATION_submul_1', ` + define(`ADDSUB', subs) + define(`ADDSUBC', sbcs) + define(`CLRRCY', `subs $1, r0, r0') + define(`RETVAL', `sbc r0, r0, r0 + sub r0, $1, r0') + define(`func', mpn_submul_1)') + +MULFUNC_PROLOGUE(mpn_addmul_1 mpn_submul_1) + +ASM_START() +PROLOGUE(func) + stmfd sp!, { r4-r6, lr } + CLRRCY( r4) + tst n, #1 + beq L(skip1) + ldr ul, [up], #4 + ldr rl, [rp, #0] + umull r5, r4, ul, vl + ADDSUB r, rl, r5 + str r, [rp], #4 +L(skip1): + tst n, #2 + beq L(skip2) + ldr ul, [up], #4 + ldr rl, [rp, #0] + mov r5, #0 + umlal r4, r5, ul, vl + ldr ul, [up], #4 + ADDSUBC r, rl, r4 + ldr rl, [rp, #4] + mov r4, #0 + umlal r5, r4, ul, vl + str r, [rp], #4 + ADDSUBC r, rl, r5 + str r, [rp], #4 +L(skip2): + bics n, n, #3 + beq L(rtn) + + ldr ul, [up], #4 + ldr rl, [rp, #0] + mov r5, #0 + umlal r4, r5, ul, vl + b L(in) + +L(top): ldr ul, [up], #4 + ADDSUBC r, rl, r5 + ldr rl, [rp, #4] + mov r5, #0 + umlal r4, r5, ul, vl + str r, [rp], #4 +L(in): ldr ul, [up], #4 + ADDSUBC r, rl, r4 + ldr rl, [rp, #4] + mov r4, #0 + umlal r5, r4, ul, vl + str r, [rp], #4 + ldr ul, [up], #4 + ADDSUBC r, rl, r5 + ldr rl, [rp, #4] + mov r5, #0 + umlal r4, r5, ul, vl + str r, [rp], #4 + ldr ul, [up], #4 + ADDSUBC r, rl, r4 + ldr rl, [rp, #4] + mov r4, #0 + umlal r5, r4, ul, vl + sub n, n, #4 + tst n, n + str r, [rp], #4 + bne L(top) + + ADDSUBC r, rl, r5 + str r, [rp] + +L(rtn): RETVAL( r4) + ldmfd sp!, { r4-r6, pc } +EPILOGUE() |