diff options
Diffstat (limited to 'gmp/mpn/sparc64/submul_1.asm')
| -rw-r--r-- | gmp/mpn/sparc64/submul_1.asm | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/gmp/mpn/sparc64/submul_1.asm b/gmp/mpn/sparc64/submul_1.asm new file mode 100644 index 0000000000..ba91200315 --- /dev/null +++ b/gmp/mpn/sparc64/submul_1.asm @@ -0,0 +1,57 @@ +dnl SPARC v9 64-bit mpn_submul_1 -- Multiply a limb vector with a limb and +dnl subtract the result from a second limb vector. + +dnl Copyright 2001, 2002, 2003 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/. + +include(`../config.m4') + +C cycles/limb +C UltraSPARC 1&2: 18 +C UltraSPARC 3: 23 + +C INPUT PARAMETERS +C rp i0 +C up i1 +C n i2 +C v i3 + +ASM_START() + REGISTER(%g2,#scratch) + +PROLOGUE(mpn_submul_1) + save %sp,-176,%sp + + sllx %i2, 3, %g2 + or %g0, %i1, %o1 + add %g2, 15, %o0 + or %g0, %i2, %o2 + and %o0, -16, %o0 + sub %sp, %o0, %sp + add %sp, 2223, %o0 + or %g0, %o0, %l0 + call mpn_mul_1 + or %g0, %i3, %o3 + or %g0, %o0, %l1 C preserve carry value from mpn_mul_1 + or %g0, %i0, %o0 + or %g0, %i0, %o1 + or %g0, %l0, %o2 + call mpn_sub_n + or %g0, %i2, %o3 + ret + restore %l1, %o0, %o0 C sum carry values +EPILOGUE(mpn_submul_1) |