145 lines
3.2 KiB
ActionScript
145 lines
3.2 KiB
ActionScript
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; mpn_addlsh_n
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; Copyright 2009 Jason Moxham
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; This file is part of the MPIR Library.
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; The MPIR Library is free software; you can redistribute it and/or modify
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; it under the terms of the GNU Lesser General Public License as published
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; by the Free Software Foundation; either version 2.1 of the License, or (at
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; your option) any later version.
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; The MPIR Library is distributed in the hope that it will be useful, but
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; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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; License for more details.
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; You should have received a copy of the GNU Lesser General Public License
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; along with the MPIR Library; see the file COPYING.LIB. If not, write
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; to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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; Boston, MA 02110-1301, USA.
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%include 'yasm_mac.inc'
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; ret mpn_addlsh_n(mp_ptr,mp_ptr,mp_ptr,mp_size_t,shift)
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; rax rdi, rsi, rdx, rcx r8
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ASM_START
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GLOBAL_FUNC mpn_addlsh_n
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lea rdi, [rdi+rcx*8-32]
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lea rsi, [rsi+rcx*8-32]
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lea rdx, [rdx+rcx*8-32]
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push r12
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push rbx
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mov rbx, 4
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sub rbx, rcx
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mov rcx, 64
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sub rcx, r8
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mov r12, 0
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mov rax, 0
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mov r8, [rdx+rbx*8]
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cmp rbx, 0
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jge L_skiplp
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align 16
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L_lp:
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mov r9, [rdx+rbx*8+8]
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mov r10, [rdx+rbx*8+16]
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mov r11, [rdx+rbx*8+24]
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shrd r12, r8, cl
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shrd r8, r9, cl
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shrd r9, r10, cl
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shrd r10, r11, cl
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sahf
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adc r12, [rsi+rbx*8]
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mov [rdi+rbx*8], r12
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adc r8, [rsi+rbx*8+8]
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mov r12, r11
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mov [rdi+rbx*8+8], r8
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adc r9, [rsi+rbx*8+16]
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adc r10, [rsi+rbx*8+24]
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mov [rdi+rbx*8+24], r10
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mov [rdi+rbx*8+16], r9
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lahf
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mov r8, [rdx+rbx*8+32]
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add rbx, 4
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jnc L_lp
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align 16
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L_skiplp:
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cmp rbx, 2
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ja L_case0
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je L_case1
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jp L_case2
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L_case3:
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shrd r12, r8, cl
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mov r9, [rdx+rbx*8+8]
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mov r10, [rdx+rbx*8+16]
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mov r11, [rdx+rbx*8+24]
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shrd r8, r9, cl
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shrd r9, r10, cl
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shrd r10, r11, cl
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sahf
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adc r12, [rsi+rbx*8]
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mov [rdi+rbx*8], r12
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adc r8, [rsi+rbx*8+8]
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mov r12, r11
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mov [rdi+rbx*8+8], r8
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adc r9, [rsi+rbx*8+16]
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adc r10, [rsi+rbx*8+24]
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mov [rdi+rbx*8+24], r10
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mov [rdi+rbx*8+16], r9
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lahf
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shr r12, cl
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sahf
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adc r12, 0
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mov rax, r12
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pop rbx
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pop r12
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ret
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L_case2:
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shrd r12, r8, cl
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mov r9, [rdx+rbx*8+8]
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shrd r8, r9, cl
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mov r10, [rdx+rbx*8+16]
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shrd r9, r10, cl
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shr r10, cl
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sahf
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adc r12, [rsi+rbx*8]
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mov [rdi+rbx*8], r12
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adc r8, [rsi+rbx*8+8]
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mov rax, 0
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mov [rdi+rbx*8+8], r8
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adc r9, [rsi+rbx*8+16]
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adc rax, r10
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mov [rdi+rbx*8+16], r9
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pop rbx
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pop r12
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ret
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L_case1:
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shrd r12, r8, cl
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mov r9, [rdx+rbx*8+8]
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shrd r8, r9, cl
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shr r9, cl
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sahf
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adc r12, [rsi+rbx*8]
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mov [rdi+rbx*8], r12
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adc r8, [rsi+rbx*8+8]
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mov rax, 0
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mov [rdi+rbx*8+8], r8
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adc rax, r9
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pop rbx
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pop r12
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ret
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L_case0:
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shrd r12, r8, cl
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shr r8, cl
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sahf
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adc r12, [rsi+rbx*8]
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mov [rdi+rbx*8], r12
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adc r8, 0
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mov rax, r8
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pop rbx
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pop r12
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ret
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end
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