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Fix a bug for Accumulator mode identification.

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Leeland Heins 2019-02-20 15:57:19 -06:00 committed by GitHub
parent fbccd70b5b
commit d6c2f4d123
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 0 deletions
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as65.pl
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@ -1176,6 +1176,10 @@ sub generate_Immediate {
# TSB Zpg 04
sub is_Zero_Page {
my ($operand, $lineno) = @_;
# Don't mistake Accumulator mode for instructions like LSR.
return 0 if $operand =~ /^[Aa]$/;
# Parse hex
if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F]$/) {
return 2;
@ -1279,6 +1283,10 @@ sub generate_Zero_Page {
# STZ Zpg,X 74
sub is_Zero_Page_X {
my ($operand, $lineno) = @_;
# Don't mistake Accumulator mode for instructions like LSR.
return 0 if $operand =~ /^[Aa]$/;
# Parse hex
if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F],[Xx]$/) {
return 2;
@ -1477,6 +1485,10 @@ sub generate_Zero_Page_Y {
# TSB Abs 0C
sub is_Absolute {
my ($operand, $lineno) = @_;
# Don't mistake Accumulator mode for instructions like LSR.
return 0 if $operand =~ /^[Aa]$/;
# Parse hex
if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]$/) {
return 2;
@ -1688,6 +1700,10 @@ sub generate_Indirect_Absolute_X {
# STZ Abs,X 9E
sub is_Absolute_X {
my ($operand, $lineno) = @_;
# Don't mistake Accumulator mode for instructions like LSR.
return 0 if $operand =~ /^[Aa]$/;
# Parse hex
if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F],[Xx]$/) {
return 2;
@ -2292,6 +2308,7 @@ sub generate_Implied {
# ROR A 6A
sub is_Accumulator {
my ($operand, $lineno) = @_;
if ($operand =~ /^[Aa]$/ || $operand eq '') {
return 1;
}