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52 lines
1.4 KiB
NASM
52 lines
1.4 KiB
NASM
dnl SH2 mpn_mul_1 -- Multiply a limb vector with a limb and store the result
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dnl in a second limb vector.
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dnl Copyright 1995, 2000, 2011 Free Software Foundation, Inc.
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dnl This file is part of the GNU MP Library.
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dnl The GNU MP Library is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU Lesser General Public License as published
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dnl by the Free Software Foundation; either version 3 of the License, or (at
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dnl your option) any later version.
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dnl The GNU MP Library is distributed in the hope that it will be useful, but
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dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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dnl License for more details.
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dnl You should have received a copy of the GNU Lesser General Public License
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dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
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include(`../config.m4')
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C INPUT PARAMETERS
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C res_ptr r4
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C s1_ptr r5
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C size r6
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C s2_limb r7
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changecom(blah) C disable # to make all C comments below work
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ASM_START()
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PROLOGUE(mpn_mul_1)
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mov #0,r2 C cy_limb = 0
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mov #0,r0 C Keep r0 = 0 for entire loop
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clrt
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L(top): mov.l @r5+,r3
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dmulu.l r3,r7
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sts macl,r1
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addc r2,r1
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sts mach,r2
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addc r0,r2 C propagate carry to cy_limb (dt clobbers T)
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dt r6
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mov.l r1,@r4
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bf.s L(top)
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add #4,r4
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rts
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mov r2,r0
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EPILOGUE()
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