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Fix skipping 0270 code when searching for disasm prefixes

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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.
This commit is contained in:
H. Peter Anvin 2008-05-21 10:34:33 -07:00
parent 39d6ac6f79
commit eb9e093840
1 changed files with 6 additions and 4 deletions
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10
insns.pl
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@ -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