/* * Hardware integer division and multiplication routines for SPARC v8 and higher. * * Copyright (C) 1996 David S. Miller (davem@redhat.com) * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * JAKUB JELINEK OR DAVID MILLER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ /* $XFree86: xc/programs/Xserver/hw/xfree86/loader/SparcMulDiv.S,v 1.1 2000/11/02 19:10:54 dawes Exp $ */ .globl urem_sparcv89, umul_sparcv89, udiv_sparcv89 .globl rem_sparcv89, mul_sparcv89, div_sparcv89 .align 32 urem_sparcv89: wr %g0, 0x0, %y nop nop nop udiv %o0, %o1, %o2 umul %o2, %o1, %o2 retl sub %o0, %o2, %o0 .align 32 umul_sparcv89: umul %o0, %o1, %o0 retl rd %y, %o1 .align 32 udiv_sparcv89: wr %g0, 0x0, %y nop nop retl udiv %o0, %o1, %o0 .align 32 rem_sparcv89: sra %o0, 0x1f, %o4 wr %o4, 0x0, %y nop nop nop sdivcc %o0, %o1, %o2 bvs,a 1f xnor %o2, %g0, %o2 1: smul %o2, %o1, %o2 retl sub %o0, %o2, %o0 .align 32 mul_sparcv89: smul %o0, %o1, %o0 retl rd %y, %o1 nop .align 32 div_sparcv89: sra %o0, 0x1f, %o2 wr %o2, 0x0, %y nop nop nop sdivcc %o0, %o1, %o0 bvs,a 1f xnor %o0, %g0, %o0 1: retl nop