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Diffstat (limited to 'gmp-6.3.0/tune/powerpc.asm')
| -rw-r--r-- | gmp-6.3.0/tune/powerpc.asm | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gmp-6.3.0/tune/powerpc.asm b/gmp-6.3.0/tune/powerpc.asm new file mode 100644 index 0000000..2f4ac27 --- /dev/null +++ b/gmp-6.3.0/tune/powerpc.asm @@ -0,0 +1,53 @@ +dnl PowerPC mftb_function -- read time base registers. + +dnl Copyright 2002 Free Software Foundation, Inc. + +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 modify +dnl it under the terms of either: +dnl +dnl * the GNU Lesser General Public License as published by the Free +dnl Software Foundation; either version 3 of the License, or (at your +dnl option) any later version. +dnl +dnl or +dnl +dnl * the GNU General Public License as published by the Free Software +dnl Foundation; either version 2 of the License, or (at your option) any +dnl later version. +dnl +dnl or both in parallel, as here. +dnl +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 General Public License +dnl for more details. +dnl +dnl You should have received copies of the GNU General Public License and the +dnl GNU Lesser General Public License along with the GNU MP Library. If not, +dnl see https://www.gnu.org/licenses/. + +include(`../config.m4') + + +C void mftb_function (unsigned a[2]); +C + +ASM_START() +PROLOGUE(mftb_function) + + C r3 a + +L(again): + mftbu r4 + mftb r5 + mftbu r6 + cmpw cr0, r4, r6 + bne L(again) + + stw r5, 0(r3) + stw r4, 4(r3) + blr + +EPILOGUE() |