diff options
Diffstat (limited to 'mpn/x86_64/pentium4/aorslshC_n.asm')
| -rw-r--r-- | mpn/x86_64/pentium4/aorslshC_n.asm | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/mpn/x86_64/pentium4/aorslshC_n.asm b/mpn/x86_64/pentium4/aorslshC_n.asm new file mode 100644 index 000000000..edabdc0d8 --- /dev/null +++ b/mpn/x86_64/pentium4/aorslshC_n.asm @@ -0,0 +1,188 @@ +dnl AMD64 mpn_addlshC_n, mpn_sublshC_n -- rp[] = up[] +- (vp[] << C), where +dnl C is 1, 2, 3. Optimized for Pentium 4. + +dnl Contributed to the GNU project by Torbjorn Granlund. + +dnl Copyright 2008, 2010 Free Software Foundation, Inc. + +dnl This file is part of the GNU MP Library. + +dnl The GNU MP Library is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU Lesser General Public License as published +dnl by the Free Software Foundation; either version 3 of the License, or (at +dnl your option) any later version. + +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 Lesser General Public +dnl License for more details. + +dnl You should have received a copy of the GNU Lesser General Public License +dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. + +C cycles/limb +C AMD K8,K9 3.8 +C AMD K10 3.8 +C Intel P4 5.8 +C Intel core2 4.75 +C Intel corei 4.75 +C Intel atom ? +C VIA nano 4.75 + + +C INPUT PARAMETERS +define(`rp',`%rdi') +define(`up',`%rsi') +define(`vp',`%rdx') +define(`n', `%rcx') + +define(M, eval(1<<LSH)) + +ASM_START() + TEXT + ALIGN(16) +PROLOGUE(func) + push %rbx + push %r12 + push %rbp + + mov (vp), %r9 + shl $LSH, %r9 + mov 4(vp), R32(%rbp) + + xor R32(%rbx), R32(%rbx) + + mov R32(n), R32(%rax) + and $3, R32(%rax) + jne L(n00) C n = 0, 4, 8, ... + + mov (up), %r8 + mov 8(up), %r10 + shr $RSH, R32(%rbp) + ADDSUB %r9, %r8 + mov 8(vp), %r9 + lea (%rbp,%r9,M), %r9 + setc R8(%rax) + mov 12(vp), R32(%rbp) + lea -16(rp), rp + jmp L(L00) + +L(n00): cmp $2, R32(%rax) + jnc L(n01) C n = 1, 5, 9, ... + mov (up), %r11 + lea -8(rp), rp + shr $RSH, R32(%rbp) + ADDSUB %r9, %r11 + setc R8(%rbx) + dec n + jz L(1) C jump for n = 1 + mov 8(up), %r8 + mov 8(vp), %r9 + lea (%rbp,%r9,M), %r9 + mov 12(vp), R32(%rbp) + lea 8(up), up + lea 8(vp), vp + jmp L(L01) + +L(n01): jne L(n10) C n = 2, 6, 10, ... + mov (up), %r12 + mov 8(up), %r11 + shr $RSH, R32(%rbp) + ADDSUB %r9, %r12 + mov 8(vp), %r9 + lea (%rbp,%r9,M), %r9 + setc R8(%rax) + mov 12(vp), R32(%rbp) + lea 16(up), up + lea 16(vp), vp + jmp L(L10) + +L(n10): mov (up), %r10 + mov 8(up), %r12 + shr $RSH, R32(%rbp) + ADDSUB %r9, %r10 + mov 8(vp), %r9 + lea (%rbp,%r9,M), %r9 + setc R8(%rbx) + mov 12(vp), R32(%rbp) + lea -24(rp), rp + lea -8(up), up + lea -8(vp), vp + jmp L(L11) + +L(c0): mov $1, R8(%rbx) + jmp L(rc0) +L(c1): mov $1, R8(%rax) + jmp L(rc1) +L(c2): mov $1, R8(%rbx) + jmp L(rc2) + + ALIGN(16) +L(top): mov (up), %r8 C not on critical path + shr $RSH, R32(%rbp) + ADDSUB %r9, %r11 C not on critical path + mov (vp), %r9 + lea (%rbp,%r9,M), %r9 + setc R8(%rbx) C save carry out + mov 4(vp), R32(%rbp) + mov %r12, (rp) + ADDSUB %rax, %r11 C apply previous carry out + jc L(c0) C jump if ripple +L(rc0): +L(L01): mov 8(up), %r10 + shr $RSH, R32(%rbp) + ADDSUB %r9, %r8 + mov 8(vp), %r9 + lea (%rbp,%r9,M), %r9 + setc R8(%rax) + mov 12(vp), R32(%rbp) + mov %r11, 8(rp) + ADDSUB %rbx, %r8 + jc L(c1) +L(rc1): +L(L00): mov 16(up), %r12 + shr $RSH, R32(%rbp) + ADDSUB %r9, %r10 + mov 16(vp), %r9 + lea (%rbp,%r9,M), %r9 + setc R8(%rbx) + mov 20(vp), R32(%rbp) + mov %r8, 16(rp) + ADDSUB %rax, %r10 + jc L(c2) +L(rc2): +L(L11): mov 24(up), %r11 + shr $RSH, R32(%rbp) + ADDSUB %r9, %r12 + mov 24(vp), %r9 + lea (%rbp,%r9,M), %r9 + lea 32(up), up + lea 32(vp), vp + setc R8(%rax) + mov -4(vp), R32(%rbp) + mov %r10, 24(rp) + ADDSUB %rbx, %r12 + jc L(c3) +L(rc3): lea 32(rp), rp +L(L10): sub $4, n + ja L(top) + +L(end): + shr $RSH, R32(%rbp) + ADDSUB %r9, %r11 + setc R8(%rbx) + mov %r12, (rp) + ADDSUB %rax, %r11 + jnc L(1) + mov $1, R8(%rbx) +L(1): mov %r11, 8(rp) + lea (%rbx,%rbp), R32(%rax) + pop %rbp + pop %r12 + pop %rbx + emms + ret +L(c3): mov $1, R8(%rax) + jmp L(rc3) +EPILOGUE() +ASM_END() |