# ***************************************************************** # # The Compcert verified compiler # # Xavier Leroy, INRIA Paris-Rocquencourt # # Copyright (c) 2013 Institut National de Recherche en Informatique et # en Automatique. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # * Neither the name of the nor the # names of its contributors may be used to endorse or promote products # derived from this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR # PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # ********************************************************************* # Helper functions for 64-bit integer arithmetic. PowerPC 64 version. .text ### Unsigned modulus .balign 16 .globl __i64_umod __i64_umod: rldimi r4, r3, 32, 0 # reassemble (r3,r4) as a 64-bit integer in r4 rldimi r6, r5, 32, 0 # reassemble (r5,r6) as a 64-bit integer in r6 divdu r0, r4, r6 mulld r0, r0, r6 subf r4, r0, r4 srdi r3, r4, 32 # split r4 into (r3,r4) blr .type __i64_umod, @function .size __i64_umod, .-__i64_umod