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author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-04-20 15:07:00 +0000 |
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committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-04-20 15:07:00 +0000 |
commit | e5362a794d813e0c4fb7a8a680a915eb57deaa7f (patch) | |
tree | c5f86388f2f246fac1106faa66be131d1c9106ad /runtime/ia32/i64_utod.s | |
parent | 9b00b13ed8c4efc78f8644bae71c375087033f17 (diff) | |
download | compcert-e5362a794d813e0c4fb7a8a680a915eb57deaa7f.tar.gz compcert-e5362a794d813e0c4fb7a8a680a915eb57deaa7f.zip |
Split arch/int64.s into one file per function.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2206 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'runtime/ia32/i64_utod.s')
-rw-r--r-- | runtime/ia32/i64_utod.s | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/runtime/ia32/i64_utod.s b/runtime/ia32/i64_utod.s new file mode 100644 index 00000000..81673fdf --- /dev/null +++ b/runtime/ia32/i64_utod.s @@ -0,0 +1,54 @@ +# ***************************************************************** +# +# 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 <organization> 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 <COPYRIGHT +# HOLDER> 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. IA32 version. + + .text + +# Conversion unsigned long -> float + + .globl __i64_utod + .balign 16 +__i64_utod: + fildll 4(%esp) # convert as if signed + cmpl $0, 8(%esp) # is argument >= 2^63? + jns 1f + fadds LC1 # adjust by 2^64 +1: ret + .type __i64_utod, @function + .size __i64_utod, . - __i64_utod + + .balign 4 +LC1: .long 0x5f800000 # 2^64 in single precision + |