214 lines
3.9 KiB
NASM
214 lines
3.9 KiB
NASM
dnl k8 mpn_addmul_2
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dnl Copyright 2009 Jason Moxham
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dnl This file is part of the MPIR Library.
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dnl The MPIR 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 2.1 of the License, or (at
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dnl your option) any later version.
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dnl The MPIR 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 MPIR Library; see the file COPYING.LIB. If not, write
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dnl to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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dnl Boston, MA 02110-1301, USA.
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include(`../config.m4')
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ASM_START()
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PROLOGUE(mpn_addmul_2)
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# (rdi,rdx+1) = (rdi,rdx) + (rsi,rdx)*(rcx,2) return carrylimb
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push %rbx
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push %r12
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mov 8(%rcx),%r8
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mov (%rcx),%rcx
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mov $4,%rbx
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sub %rdx,%rbx
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lea -32(%rsi,%rdx,8),%rsi
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lea -32(%rdi,%rdx,8),%rdi
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mov $0,%r10
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mov (%rsi,%rbx,8),%rax
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mul %rcx
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mov %rax,%r12
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mov %rdx,%r9
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cmp $0,%rbx
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jge skiplp
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ALIGN(16)
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lp:
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mov (%rsi,%rbx,8),%rax
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mul %r8
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add %rax,%r9
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mov 8(%rsi,%rbx,8),%rax
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adc %rdx,%r10
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mov $0,%r11
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mul %rcx
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add %r12,(%rdi,%rbx,8)
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adc %rax,%r9
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mov $0,%r12
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adc %rdx,%r10
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mov 8(%rsi,%rbx,8),%rax
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adc $0,%r11
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mul %r8
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add %r9,8(%rdi,%rbx,8)
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adc %rax,%r10
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adc %rdx,%r11
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mov 16(%rsi,%rbx,8),%rax
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mul %rcx
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add %rax,%r10
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mov 16(%rsi,%rbx,8),%rax
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adc %rdx,%r11
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adc $0,%r12
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mul %r8
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add %r10,16(%rdi,%rbx,8)
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mov $0,%r9
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adc %rax,%r11
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mov $0,%r10
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mov 24(%rsi,%rbx,8),%rax
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adc %rdx,%r12
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mov %r15,%r15
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mul %rcx
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add %rax,%r11
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mov 24(%rsi,%rbx,8),%rax
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adc %rdx,%r12
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adc $0,%r9
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mul %r8
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add %r11,24(%rdi,%rbx,8)
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adc %rax,%r12
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adc %rdx,%r9
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mov 32(%rsi,%rbx,8),%rax
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mul %rcx
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add %rax,%r12
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adc %rdx,%r9
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adc $0,%r10
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add $4,%rbx
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jnc lp
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skiplp:
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mov (%rsi,%rbx,8),%rax
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mul %r8
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cmp $2,%rbx
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ja case0
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jz case1
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jp case2
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# case 3 3 more src so 24(rsi) is last
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#ALIGN(16)
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case3:
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add %rax,%r9
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mov 8(%rsi,%rbx,8),%rax
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adc %rdx,%r10
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mov $0,%r11
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mul %rcx
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add %r12,(%rdi,%rbx,8)
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adc %rax,%r9
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mov $0,%r12
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adc %rdx,%r10
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mov 8(%rsi,%rbx,8),%rax
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adc $0,%r11
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mul %r8
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add %r9,8(%rdi,%rbx,8)
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adc %rax,%r10
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adc %rdx,%r11
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mov 16(%rsi,%rbx,8),%rax
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mul %rcx
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add %rax,%r10
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mov 16(%rsi,%rbx,8),%rax
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adc %rdx,%r11
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adc $0,%r12
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mul %r8
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add %r10,16(%rdi,%rbx,8)
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mov $0,%r9
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adc %rax,%r11
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#padding
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mov $0,%r10
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mov 24(%rsi,%rbx,8),%rax
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adc %rdx,%r12
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#padding
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mov %r15,%r15
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mul %rcx
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add %rax,%r11
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mov 24(%rsi,%rbx,8),%rax
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adc %rdx,%r12
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adc $0,%r9
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mul %r8
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add %r11,24(%rdi,%rbx,8)
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adc %rax,%r12
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adc %rdx,%r9
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mov %r12,32(%rdi,%rbx,8)
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mov %r9,%rax
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pop %r12
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pop %rbx
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ret
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# case 2 2 more src so 16(rsi) is last
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ALIGN(16)
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case2:
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add %rax,%r9
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mov 8(%rsi,%rbx,8),%rax
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adc %rdx,%r10
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mov $0,%r11
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mul %rcx
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add %r12,(%rdi,%rbx,8)
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adc %rax,%r9
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mov $0,%r12
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adc %rdx,%r10
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mov 8(%rsi,%rbx,8),%rax
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adc $0,%r11
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mul %r8
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add %r9,8(%rdi,%rbx,8)
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adc %rax,%r10
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adc %rdx,%r11
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mov 16(%rsi,%rbx,8),%rax
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mul %rcx
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add %rax,%r10
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mov 16(%rsi,%rbx,8),%rax
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adc %rdx,%r11
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adc $0,%r12
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mul %r8
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add %r10,16(%rdi,%rbx,8)
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adc %rax,%r11
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adc %rdx,%r12
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mov %r11,24(%rdi,%rbx,8)
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mov %r12,%rax
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pop %r12
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pop %rbx
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ret
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# case 1 1 more src so 8(rsi) is last
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ALIGN(16)
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case1:
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add %rax,%r9
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mov 8(%rsi,%rbx,8),%rax
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adc %rdx,%r10
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mov $0,%r11
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mul %rcx
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add %r12,(%rdi,%rbx,8)
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adc %rax,%r9
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mov $0,%r12
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adc %rdx,%r10
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mov 8(%rsi,%rbx,8),%rax
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adc $0,%r11
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mul %r8
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add %r9,8(%rdi,%rbx,8)
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adc %rax,%r10
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adc %rdx,%r11
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mov %r10,16(%rdi,%rbx,8)
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mov %r11,%rax
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pop %r12
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pop %rbx
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ret
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# case 0 no more src so (rsi) is last
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ALIGN(16)
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case0:
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add %r12,(%rdi,%rbx,8)
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adc %rax,%r9
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adc %rdx,%r10
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mov %r9,8(%rdi,%rbx,8)
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mov %r10,%rax
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pop %r12
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pop %rbx
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ret
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EPILOGUE()
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