diff options
Diffstat (limited to 'rts/gmp/mpn/x86/pentium/aors_n.asm')
| -rw-r--r-- | rts/gmp/mpn/x86/pentium/aors_n.asm | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/rts/gmp/mpn/x86/pentium/aors_n.asm b/rts/gmp/mpn/x86/pentium/aors_n.asm new file mode 100644 index 0000000000..a61082a456 --- /dev/null +++ b/rts/gmp/mpn/x86/pentium/aors_n.asm @@ -0,0 +1,196 @@ +dnl Intel Pentium mpn_add_n/mpn_sub_n -- mpn addition and subtraction. +dnl +dnl P5: 2.375 cycles/limb + + +dnl Copyright (C) 1992, 1994, 1995, 1996, 1999, 2000 Free Software +dnl Foundation, Inc. +dnl +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 +dnl modify it under the terms of the GNU Lesser General Public License as +dnl published by the Free Software Foundation; either version 2.1 of the +dnl License, or (at your option) any later version. +dnl +dnl The GNU MP Library is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +dnl Lesser General Public License for more details. +dnl +dnl You should have received a copy of the GNU Lesser General Public +dnl License along with the GNU MP Library; see the file COPYING.LIB. If +dnl not, write to the Free Software Foundation, Inc., 59 Temple Place - +dnl Suite 330, Boston, MA 02111-1307, USA. + + +include(`../config.m4') + + +ifdef(`OPERATION_add_n',` + define(M4_inst, adcl) + define(M4_function_n, mpn_add_n) + define(M4_function_nc, mpn_add_nc) + +',`ifdef(`OPERATION_sub_n',` + define(M4_inst, sbbl) + define(M4_function_n, mpn_sub_n) + define(M4_function_nc, mpn_sub_nc) + +',`m4_error(`Need OPERATION_add_n or OPERATION_sub_n +')')') + +MULFUNC_PROLOGUE(mpn_add_n mpn_add_nc mpn_sub_n mpn_sub_nc) + + +C mp_limb_t M4_function_n (mp_ptr dst, mp_srcptr src1, mp_srcptr src2, +C mp_size_t size); +C mp_limb_t M4_function_nc (mp_ptr dst, mp_srcptr src1, mp_srcptr src2, +C mp_size_t size, mp_limb_t carry); + +defframe(PARAM_CARRY,20) +defframe(PARAM_SIZE, 16) +defframe(PARAM_SRC2, 12) +defframe(PARAM_SRC1, 8) +defframe(PARAM_DST, 4) + + .text + ALIGN(8) +PROLOGUE(M4_function_nc) + + pushl %edi + pushl %esi + pushl %ebx + pushl %ebp +deflit(`FRAME',16) + + movl PARAM_DST,%edi + movl PARAM_SRC1,%esi + movl PARAM_SRC2,%ebp + movl PARAM_SIZE,%ecx + + movl (%ebp),%ebx + + decl %ecx + movl %ecx,%edx + shrl $3,%ecx + andl $7,%edx + testl %ecx,%ecx C zero carry flag + jz L(endgo) + + pushl %edx +FRAME_pushl() + movl PARAM_CARRY,%eax + shrl $1,%eax C shift bit 0 into carry + jmp LF(M4_function_n,oop) + +L(endgo): +deflit(`FRAME',16) + movl PARAM_CARRY,%eax + shrl $1,%eax C shift bit 0 into carry + jmp LF(M4_function_n,end) + +EPILOGUE() + + + ALIGN(8) +PROLOGUE(M4_function_n) + + pushl %edi + pushl %esi + pushl %ebx + pushl %ebp +deflit(`FRAME',16) + + movl PARAM_DST,%edi + movl PARAM_SRC1,%esi + movl PARAM_SRC2,%ebp + movl PARAM_SIZE,%ecx + + movl (%ebp),%ebx + + decl %ecx + movl %ecx,%edx + shrl $3,%ecx + andl $7,%edx + testl %ecx,%ecx C zero carry flag + jz L(end) + pushl %edx +FRAME_pushl() + + ALIGN(8) +L(oop): movl 28(%edi),%eax C fetch destination cache line + leal 32(%edi),%edi + +L(1): movl (%esi),%eax + movl 4(%esi),%edx + M4_inst %ebx,%eax + movl 4(%ebp),%ebx + M4_inst %ebx,%edx + movl 8(%ebp),%ebx + movl %eax,-32(%edi) + movl %edx,-28(%edi) + +L(2): movl 8(%esi),%eax + movl 12(%esi),%edx + M4_inst %ebx,%eax + movl 12(%ebp),%ebx + M4_inst %ebx,%edx + movl 16(%ebp),%ebx + movl %eax,-24(%edi) + movl %edx,-20(%edi) + +L(3): movl 16(%esi),%eax + movl 20(%esi),%edx + M4_inst %ebx,%eax + movl 20(%ebp),%ebx + M4_inst %ebx,%edx + movl 24(%ebp),%ebx + movl %eax,-16(%edi) + movl %edx,-12(%edi) + +L(4): movl 24(%esi),%eax + movl 28(%esi),%edx + M4_inst %ebx,%eax + movl 28(%ebp),%ebx + M4_inst %ebx,%edx + movl 32(%ebp),%ebx + movl %eax,-8(%edi) + movl %edx,-4(%edi) + + leal 32(%esi),%esi + leal 32(%ebp),%ebp + decl %ecx + jnz L(oop) + + popl %edx +FRAME_popl() +L(end): + decl %edx C test %edx w/o clobbering carry + js L(end2) + incl %edx +L(oop2): + leal 4(%edi),%edi + movl (%esi),%eax + M4_inst %ebx,%eax + movl 4(%ebp),%ebx + movl %eax,-4(%edi) + leal 4(%esi),%esi + leal 4(%ebp),%ebp + decl %edx + jnz L(oop2) +L(end2): + movl (%esi),%eax + M4_inst %ebx,%eax + movl %eax,(%edi) + + sbbl %eax,%eax + negl %eax + + popl %ebp + popl %ebx + popl %esi + popl %edi + ret + +EPILOGUE() |