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| author | H. Peter Anvin <hpa@zytor.com> | 2008-05-21 10:34:33 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-05-21 10:34:33 -0700 |
| commit | eb9e0938403b63e6478d6d874285a39e9984dbda (patch) | |
| tree | 07ae5a0817f9e05b58cc7f256c48ab991aa446b0 /insns.pl | |
| parent | 39d6ac6f791bc2e16f09c47055b1a46e34445118 (diff) | |
| download | nasm-eb9e0938403b63e6478d6d874285a39e9984dbda.tar.gz nasm-eb9e0938403b63e6478d6d874285a39e9984dbda.tar.bz2 nasm-eb9e0938403b63e6478d6d874285a39e9984dbda.zip | |
Fix skipping 0270 code when searching for disasm prefixes
The 0270 code was incorrectly entered as 270 (decimal), which meant
that instructions with vex but no .nds got misfiled in the improper
opcode tables.
Diffstat (limited to 'insns.pl')
| -rw-r--r-- | insns.pl | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -406,6 +406,8 @@ sub hexstr(@) { # \1[0123] mean byte plus register value # \330 means byte plus condition code # \0 or \340 mean give up and return empty set +# \17[234] skip is4 control byte +# \26x \270 skip VEX control bytes sub startseq($) { my ($codestr) = @_; my $word, @range; @@ -461,11 +463,11 @@ sub startseq($) { return addprefix($prefix, $c1..($c1+15)); } elsif ($c0 == 0 || $c0 == 0340) { return $prefix; - } elsif (($c0 & ~3) == 0260 || $c0 == 270) { - shift(@codes); - shift(@codes); - } elsif ($c0 == 0172) { + } elsif (($c0 & ~3) == 0260 || $c0 == 0270) { + shift(@codes); # Skip VEX control bytes shift(@codes); + } elsif ($c0 >= 0172 && $c0 <= 174) { + shift(@codes); # Skip is4 control byte } else { # We really need to be able to distinguish "forbidden" # and "ignorable" codes here |