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Bug fix for DS

This commit is contained in:
Leeland Heins 2018-12-28 14:16:01 -06:00 committed by GitHub
parent 2db741e827
commit 88e61b8f22
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 28 additions and 6 deletions
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34
as65.pl
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@ -2484,8 +2484,23 @@ if (open($ifh, "<$input_file")) {
$symbols{$symbol} = '$' . sprintf("%02x", unpack('C', pack("B8", $1))) . sprintf("%02x", unpack('C', pack("B8", $2)));
# Handle symbol
} elsif ($operand =~ /^([<>]*)([A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)$/) {
##FIXME -- need to handle < and > here
$symbols{$symbol} = $symbols{$2};
my $symval = $symbols{$2};
if (defined $symval) {
# Handle < and >.
if (defined $1 && $1 eq '<') {
if ($symval =~ /\$([0-9a-fA-F]{1,2})/) {
$symbols{$symbol} = $1;
}
} elsif (defined $1 && $1 eq '>') {
if ($symval =~ /\$[0-9a-fA-F]*([0-9a-fA-F]{1,2})/) {
$symbols{$symbol} = $1;
}
} else {
$symbols{$symbol} = $symval;
}
} else {
print "**** $lineno - Unknown symbol '$2' in '$line'\n";
}
# Allow arithmetic on symbol
} elsif ($operand =~ /^([<>]*)([A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)\s*[+]\s*(\$*[0-9a-fA-F]+)$/) {
# Add
@ -2504,14 +2519,14 @@ if (open($ifh, "<$input_file")) {
if ($operand =~ /([0-9a-fA-F]+)/) {
$addr += (length($1) / 2);
}
} elsif ($ucmnemonic =~ /^DS$/i) {
} elsif ($ucmnemonic =~ /^DS$/) {
if ($label ne '') {
my $symbol = $label;
$symbols{$symbol} = sprintf("\$%04x", $addr);
}
if ($operand =~ /\$([0-9a-fA-F]+)/) {
$addr += hex(lc($1));
} elsif ($operand =~ /(\d+)/) {
} elsif ($operand =~ /^(\d+)/) {
$addr += $1;
}
} elsif ($ucmnemonic =~ /^DB$/i) {
@ -2793,10 +2808,17 @@ if (open($ifh, "<$input_file")) {
# Decimal
my $strlen = 0;
my $val = 0x00;
if ($operand =~ /^(\d+)/) {
if ($operand =~ /^(\d+)$/) {
$strlen = $1;
} elsif ($operand =~ /^(\d+),"(.)["]*/) {
$val = ord($1);
$strlen = $1;
$val = ord($2);
} elsif ($operand =~ /^(\d+),'(.)[']*/) {
$strlen = $1;
$val = ord($2);
} elsif ($operand =~ /^(\d+),\$([0-9a-fA-F][0-9a-fA-F])/) {
$strlen = $1;
$val = hex(lc($2));
# Hex
} elsif ($operand =~ /^\$([0-9a-fA-F][0-9a-fA-F])/) {
$strlen = hex(lc($1));