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Diffstat (limited to 'gmp/mpn/vax/rshift.asm')
| -rw-r--r-- | gmp/mpn/vax/rshift.asm | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/gmp/mpn/vax/rshift.asm b/gmp/mpn/vax/rshift.asm new file mode 100644 index 0000000000..00b2daac01 --- /dev/null +++ b/gmp/mpn/vax/rshift.asm @@ -0,0 +1,57 @@ +dnl VAX mpn_rshift -- right shift. + +dnl Copyright 1999-2001, 2012 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') + +ASM_START() +PROLOGUE(mpn_rshift) + .word 0x1c0 + movl 4(ap), r7 + movl 8(ap), r6 + movl 12(ap), r1 + movl 16(ap), r8 + + movl (r6)+, r2 + subl3 r8, $32, r8 + ashl r8, r2, r0 + decl r1 + jeql L(end) + +L(top): movl (r6)+, r3 + ashq r8, r2, r4 + movl r5, (r7)+ + movl r3, r2 + sobgtr r1, L(top) + +L(end): clrl r3 + ashq r8, r2, r4 + movl r5, (r7) + ret +EPILOGUE() |