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Start of macro implementation

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Leeland Heins 2018-12-28 09:41:33 -06:00 committed by GitHub
parent 8857cddc31
commit a96df8db2f
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1 changed files with 138 additions and 54 deletions
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as65.pl
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@ -17,6 +17,9 @@ my $code_listing = 1; # Generated code listing.
my $symbol_table = 1; # Output symbol table. my $symbol_table = 1; # Output symbol table.
my %symbols = (); # Hash of symbol table values. my %symbols = (); # Hash of symbol table values.
my %macros = (); # Hash of macros.
my $in_macro = 0;
my $base = 0x800; # Default base address. Overide with -a (decimal) or -x (hex) from command line or .org or ORG directives in code. my $base = 0x800; # Default base address. Overide with -a (decimal) or -x (hex) from command line or .org or ORG directives in code.
@ -544,8 +547,8 @@ my %mnemonics = (
'Immediate' => 0xa0, 'Immediate' => 0xa0,
# Zero Page LDY Zpg A4 2 3 # Zero Page LDY Zpg A4 2 3
'Zero_Page' => 0xa4, 'Zero_Page' => 0xa4,
# Zero Page,Y LDY Zpg,X B4 2 4 # Zero Page,X LDY Zpg,X B4 2 4
'Zero_Page_Y' => 0xb4, 'Zero_Page_X' => 0xb4,
# Absolute LDY Abs AC 3 4 # Absolute LDY Abs AC 3 4
'Absolute' => 0xac, 'Absolute' => 0xac,
# Absolute,Y LDY Abs,X BC 3 4 # Absolute,Y LDY Abs,X BC 3 4
@ -1026,7 +1029,7 @@ sub handle_16_bit_symbol_sub {
sub is_Immediate { sub is_Immediate {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^#\$[0-9a-fA-f][0-9a-fA-F]$/) { if ($operand =~ /^#\$[0-9a-fA-f]{0,1}[0-9a-fA-F]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^#%([01]{8})$/) { } elsif ($operand =~ /^#%([01]{8})$/) {
@ -1036,7 +1039,7 @@ sub is_Immediate {
#return 0 if ($1 > 255); #return 0 if ($1 > 255);
return 2; return 2;
# Parse ASCII # Parse ASCII
} elsif ($operand =~ /^#"(.)$/) { } elsif ($operand =~ /^#"(.)["]*$/) {
return 2; return 2;
# Handle symbols. # Handle symbols.
} elsif ($operand =~ /^#[<>]*([A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)$/) { } elsif ($operand =~ /^#[<>]*([A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)$/) {
@ -1054,7 +1057,7 @@ sub is_Immediate {
sub generate_Immediate { sub generate_Immediate {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^#\$([0-9a-fA-F][0-9a-fA-F])$/) { if ($operand =~ /^#\$([0-9a-fA-F]{0,1}[0-9a-fA-F])$/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
generate_16($ofh, $addr, $opcode, $opval, $lineno, $line); generate_16($ofh, $addr, $opcode, $opval, $lineno, $line);
# Parse binary # Parse binary
@ -1065,7 +1068,7 @@ sub generate_Immediate {
} elsif ($operand =~ /^#(\d+)$/) { } elsif ($operand =~ /^#(\d+)$/) {
generate_16($ofh, $addr, $opcode, $1, $lineno, $line); generate_16($ofh, $addr, $opcode, $1, $lineno, $line);
# Parse ASCII # Parse ASCII
} elsif ($operand =~ /^#"(.)$/) { } elsif ($operand =~ /^#"(.)["]*$/) {
generate_16($ofh, $addr, $opcode, ord($1), $lineno, $line); generate_16($ofh, $addr, $opcode, ord($1), $lineno, $line);
# Handle symbol # Handle symbol
} elsif ($operand =~ /^#([<>]*[A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)/) { } elsif ($operand =~ /^#([<>]*[A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)/) {
@ -1111,7 +1114,7 @@ sub generate_Immediate {
sub is_Zero_Page { sub is_Zero_Page {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$[0-9a-fA-F][0-9a-fA-F]$/) { if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^#%([01]{8})$/) { } elsif ($operand =~ /^#%([01]{8})$/) {
@ -1158,7 +1161,7 @@ sub is_Zero_Page {
sub generate_Zero_Page { sub generate_Zero_Page {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$([0-9a-fA-F][0-9a-fA-F])/) { if ($operand =~ /^\$([0-9a-fA-F]{0,1}[0-9a-fA-F])/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
generate_16($ofh, $addr, $opcode, $opval, $lineno, $line); generate_16($ofh, $addr, $opcode, $opval, $lineno, $line);
# Parse binary # Parse binary
@ -1204,7 +1207,7 @@ sub generate_Zero_Page {
sub is_Zero_Page_X { sub is_Zero_Page_X {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$[0-9a-fA-F][0-9a-fA-F],[Xx]$/) { if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F],[Xx]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{8}),[Xx]$/) { } elsif ($operand =~ /^%([01]{8}),[Xx]$/) {
@ -1221,7 +1224,7 @@ sub is_Zero_Page_X {
if ($symval =~ /^\d+$/) { if ($symval =~ /^\d+$/) {
return 0 if ($symval > 255); return 0 if ($symval > 255);
} else { } else {
return 0 unless $symval =~ /^\$[0-9a-fA-F][0-9a-fA-F]|^%[01]{8}$$/; return 0 unless $symval =~ /^\$[0-9a-fA-F][0-9a-fA-F]$|^%[01]{8}$/;
} }
} else { } else {
# Assume that forward declared symbols are addresses. # Assume that forward declared symbols are addresses.
@ -1235,7 +1238,7 @@ sub is_Zero_Page_X {
if ($symval =~ /^\d+$/) { if ($symval =~ /^\d+$/) {
return 0 if ($symval > 255); return 0 if ($symval > 255);
} else { } else {
return 0 unless $symval =~ /^\$[0-9a-fA-F][0-9a-fA-F]|^%[01]{8}$$/; return 0 unless $symval =~ /^\$[0-9a-fA-F][0-9a-fA-F]$|^%[01]{8}$/;
} }
} else { } else {
# Assume that forward declared symbols are addresses. # Assume that forward declared symbols are addresses.
@ -1250,7 +1253,7 @@ sub is_Zero_Page_X {
sub generate_Zero_Page_X { sub generate_Zero_Page_X {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$([0-9a-fA-F][0-9a-fA-F]),[Xx]$/) { if ($operand =~ /^\$([0-9a-fA-F]{0,1}[0-9a-fA-F]),[Xx]$/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
generate_16($ofh, $addr, $opcode, $opval, $lineno, $line); generate_16($ofh, $addr, $opcode, $opval, $lineno, $line);
# Parse binary # Parse binary
@ -1281,7 +1284,7 @@ sub generate_Zero_Page_X {
sub is_Zero_Page_Y { sub is_Zero_Page_Y {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$[0-9a-fA-F][0-9a-fA-F],[Yy]$/) { if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F],[Yy]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{8}),[Yy]$/) { } elsif ($operand =~ /^%([01]{8}),[Yy]$/) {
@ -1327,7 +1330,7 @@ sub is_Zero_Page_Y {
sub generate_Zero_Page_Y { sub generate_Zero_Page_Y {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$([0-9a-fA-F][0-9a-fA-F]),[Yy]$/) { if ($operand =~ /^\$([0-9a-fA-F]{0,1}[0-9a-fA-F]),[Yy]$/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
generate_16($ofh, $addr, $opcode, $opval, $lineno, $line); generate_16($ofh, $addr, $opcode, $opval, $lineno, $line);
# Parse binary # Parse binary
@ -1382,7 +1385,7 @@ sub generate_Zero_Page_Y {
sub is_Absolute { sub is_Absolute {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$[0-9a-fA-F]*[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]$/) { if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{16})$/) { } elsif ($operand =~ /^%([01]{16})$/) {
@ -1413,8 +1416,10 @@ sub is_Absolute {
sub generate_Absolute { sub generate_Absolute {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$([0-9a-fA-F]*[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f])$/) { if ($operand =~ /^\$([0-9a-fA-F]{0,1}[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f])$/) {
generate_24($ofh, $addr, $opcode, hex(lc($2)), hex(lc($1)), $lineno, $line); my $opval1 = hex(lc($1));
my $opval2 = hex(lc($2));
generate_24($ofh, $addr, $opcode, $opval2, $opval1, $lineno, $line);
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{16})$/) { } elsif ($operand =~ /^%([01]{16})$/) {
my $opval1 = unpack('C', pack("B8", substr($1, 0, 8))); my $opval1 = unpack('C', pack("B8", substr($1, 0, 8)));
@ -1468,10 +1473,10 @@ sub is_Indirect_Absolute {
sub generate_Indirect_Absolute { sub generate_Indirect_Absolute {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$([0-9a-fA-F]*[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f])\)/) { if ($operand =~ /^\(\$([0-9a-fA-F]{0,1}[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f])\)/) {
#my $opval1 = hex(lc(substr($1, 0, 2))); my $opval1 = hex(lc($1));
#my $opval2 = hex(lc(substr($1, 2, 2))); my $opval2 = hex(lc($2));
generate_24($ofh, $addr, $opcode, $2, $1, $lineno, $line); generate_24($ofh, $addr, $opcode, $opval2, $opval1, $lineno, $line);
# Parse binary # Parse binary
} elsif ($operand =~ /^\(%([01]{16})\)$/) { } elsif ($operand =~ /^\(%([01]{16})\)$/) {
my $opval = unpack('C', pack("B16", $1)); my $opval = unpack('C', pack("B16", $1));
@ -1524,10 +1529,10 @@ sub is_Indirect_Absolute_X {
sub generate_Indirect_Absolute_X { sub generate_Indirect_Absolute_X {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$([0-9a-fA-F]*[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f]),[Xx]\)/) { if ($operand =~ /^\(\$([0-9a-fA-F]{0,1}[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f]),[Xx]\)/) {
#my $opval1 = hex(lc(substr($1, 0, 2))); my $opval1 = hex(lc($1));
#my $opval2 = hex(lc(substr($1, 2, 2))); my $opval2 = hex(lc($2));
generate_24($ofh, $addr, $opcode, $2, $1, $lineno, $line); generate_24($ofh, $addr, $opcode, $opval2, $opval1, $lineno, $line);
# Parse binary # Parse binary
} elsif ($operand =~ /^\(%([01]{16}),[Xx]\)$/) { } elsif ($operand =~ /^\(%([01]{16}),[Xx]\)$/) {
my $opval = unpack('C', pack("B16", $1)); my $opval = unpack('C', pack("B16", $1));
@ -1573,7 +1578,7 @@ sub generate_Indirect_Absolute_X {
sub is_Absolute_X { sub is_Absolute_X {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$[0-9a-fA-F]*[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F],[Xx]$/) { if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F],[Xx]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{16}),[Xx]$/) { } elsif ($operand =~ /^%([01]{16}),[Xx]$/) {
@ -1604,10 +1609,10 @@ sub is_Absolute_X {
sub generate_Absolute_X { sub generate_Absolute_X {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$([0-9a-fA-F]*[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f]),[Xx]/) { if ($operand =~ /^\$([0-9a-fA-F]{0,1}[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f]),[Xx]/) {
#my $opval1 = hex(lc(substr($1, 0, 2))); my $opval1 = hex(lc($1));
#my $opval2 = hex(lc(substr($1, 2, 2))); my $opval2 = hex(lc($2));
generate_24($ofh, $addr, $opcode, $2, $1, $lineno, $line); generate_24($ofh, $addr, $opcode, $opval2, $opval1, $lineno, $line);
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{16}),[Xx]$/) { } elsif ($operand =~ /^%([01]{16}),[Xx]$/) {
my $opval = unpack('C', pack("B16", $1)); my $opval = unpack('C', pack("B16", $1));
@ -1647,7 +1652,7 @@ sub generate_Absolute_X {
sub is_Absolute_Y { sub is_Absolute_Y {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$[0-9a-fA-F]*[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F],[Yy]$/) { if ($operand =~ /^\$[0-9a-fA-F]{0,1}[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F],[Yy]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{16}),[Yy]$/) { } elsif ($operand =~ /^%([01]{16}),[Yy]$/) {
@ -1677,10 +1682,10 @@ sub is_Absolute_Y {
sub generate_Absolute_Y { sub generate_Absolute_Y {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\$([0-9a-fA-F]*[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f]),[Yy]/) { if ($operand =~ /^\$([0-9a-fA-F]{0,1}[0-9a-fA-F])([0-9A-Fa-f][0-9A-Fa-f]),[Yy]/) {
#my $opval1 = hex(lc(substr($1, 0, 2))); my $opval1 = hex(lc($1));
#my $opval2 = hex(lc(substr($1, 2, 2))); my $opval2 = hex(lc($2));
generate_24($ofh, $addr, $opcode, $2, $1, $lineno, $line); generate_24($ofh, $addr, $opcode, $opval2, $opval1, $lineno, $line);
# Parse binary # Parse binary
} elsif ($operand =~ /^%([01]{16}),[Yy]$/) { } elsif ($operand =~ /^%([01]{16}),[Yy]$/) {
my $opval = unpack('C', pack("B16", $1)); my $opval = unpack('C', pack("B16", $1));
@ -1718,7 +1723,7 @@ sub generate_Absolute_Y {
sub is_Indirect_Zero_Page_X { sub is_Indirect_Zero_Page_X {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$[0-9a-fA-F][0-9a-fA-F],[Xx]\)$/) { if ($operand =~ /^\(\$[0-9a-fA-F]{0,1}[0-9a-fA-F],[Xx]\)$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^\(%([01]{8}),[Xx]\)$/) { } elsif ($operand =~ /^\(%([01]{8}),[Xx]\)$/) {
@ -1763,7 +1768,7 @@ sub is_Indirect_Zero_Page_X {
sub generate_Indirect_Zero_Page_X { sub generate_Indirect_Zero_Page_X {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$([0-9a-fA-f][0-9a-fA-f]),[Xx]\)$/) { if ($operand =~ /^\(\$([0-9a-fA-f]{0,1}[0-9a-fA-f]),[Xx]\)$/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
generate_16($ofh, $addr, $opcode, $opval, $lineno, $line); generate_16($ofh, $addr, $opcode, $opval, $lineno, $line);
# Parse binary # Parse binary
@ -1800,7 +1805,7 @@ sub generate_Indirect_Zero_Page_X {
sub is_Indirect_Zero_Page_Y { sub is_Indirect_Zero_Page_Y {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$([0-9a-fA-F][0-9a-fA-F])\),[Yy]$/) { if ($operand =~ /^\(\$([0-9a-fA-F]{0,1}[0-9a-fA-F])\),[Yy]$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^\(%([01]{8})\),[Yy]$/) { } elsif ($operand =~ /^\(%([01]{8})\),[Yy]$/) {
@ -1823,7 +1828,7 @@ sub is_Indirect_Zero_Page_Y {
sub generate_Indirect_Zero_Page_Y { sub generate_Indirect_Zero_Page_Y {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$([0-9a-fA-F][0-9a-fA-F])\),[Yy]$/) { if ($operand =~ /^\(\$([0-9a-fA-F]{0,1}[0-9a-fA-F])\),[Yy]$/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
generate_16($ofh, $addr, $opcode, $opval, $lineno, $line); generate_16($ofh, $addr, $opcode, $opval, $lineno, $line);
# Parse binary # Parse binary
@ -1860,7 +1865,7 @@ sub generate_Indirect_Zero_Page_Y {
sub is_Indirect_Zero_Page { sub is_Indirect_Zero_Page {
my ($operand, $lineno) = @_; my ($operand, $lineno) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$[0-9a-fA-F][0-9a-fA-F]\)$/) { if ($operand =~ /^\(\$[0-9a-fA-F]{0,1}[0-9a-fA-F]\)$/) {
return 2; return 2;
# Parse binary # Parse binary
} elsif ($operand =~ /^\(%([01]{8})\)$/) { } elsif ($operand =~ /^\(%([01]{8})\)$/) {
@ -1905,7 +1910,7 @@ sub is_Indirect_Zero_Page {
sub generate_Indirect_Zero_Page { sub generate_Indirect_Zero_Page {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Parse hex # Parse hex
if ($operand =~ /^\(\$([0-9a-fA-F][0-9a-fA-F])\)$/) { if ($operand =~ /^\(\$([0-9a-fA-F]{0,1}[0-9a-fA-F])\)$/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
generate_16($ofh, $addr, $opcode, $opval, $lineno, $line); generate_16($ofh, $addr, $opcode, $opval, $lineno, $line);
# Parse binary # Parse binary
@ -1970,7 +1975,7 @@ sub generate_Relative {
my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_; my ($addr, $operand, $opcode, $ofh, $lineno, $line) = @_;
# Decode hex # Decode hex
if ($operand =~ /^\$([0-9a-fA-F]{1,4}$)/) { if ($operand =~ /^\$([0-9a-fA-F]+$)/) {
my $opval = hex(lc($1)); my $opval = hex(lc($1));
my $rel = (0 - ($addr - $opval)) + 254; my $rel = (0 - ($addr - $opval)) + 254;
if ($rel < 0) { if ($rel < 0) {
@ -2002,10 +2007,11 @@ sub generate_Relative {
} }
# Handle symbols # Handle symbols
} elsif ($operand =~ /^([A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)$/) { } elsif ($operand =~ /^([A-Za-z\.\?:][A-Za-z0-9_\.\?:]*)$/) {
my $symval = $symbols{$1}; my $symbol = $1;
my $symval = $symbols{$symbol};
if (defined $symval) { if (defined $symval) {
my $opval = lc($symval); my $opval = lc($symval);
if ($symval =~ /^\$([0-9a-fA-F]{1,4})/) { if ($symval =~ /^\$([0-9a-fA-F]+)$/) {
$opval = hex(lc($1)); $opval = hex(lc($1));
} else { } else {
$opval = $symval; $opval = $symval;
@ -2032,7 +2038,7 @@ sub generate_Relative {
my $symval = $symbols{$1}; my $symval = $symbols{$1};
if (defined $symval) { if (defined $symval) {
my $opval = lc($symval); my $opval = lc($symval);
if ($symval =~ /^\$([0-9a-fA-F]{1,4})/) { if ($symval =~ /^\$([0-9a-fA-F]+)$/) {
$opval = hex(lc($1)); $opval = hex(lc($1));
} else { } else {
$opval = $symval; $opval = $symval;
@ -2218,6 +2224,48 @@ sub parse_line {
$mnemonic = $1; $mnemonic = $1;
$operand = $2; $operand = $2;
$comment = ''; $comment = '';
# Next 4 for things like LDA #" "
} elsif ($line =~ /^\s+(\S+)\s+(#\".\")\s+(;.*)$/) {
$label = '';
$mnemonic = $1;
$operand = $2;
$comment = $3;
} elsif ($line =~ /^\s+(\S+)\s+(#\".\")\s*$/) {
$label = '';
$mnemonic = $1;
$operand = $2;
$comment = '';
} elsif ($line =~ /^(\S+)\s+(\S+)\s+(#\".\")\s+(;.*)$/) {
$label = $1;
$mnemonic = $2;
$operand = $3;
$comment = $3;
} elsif ($line =~ /^(\S+)\s+(\S+)\s+(#\".\")\s*$/) {
$label = $1;
$mnemonic = $2;
$operand = $3;
$comment = '';
# Next 4 for things like DS 255," "
} elsif ($line =~ /^\s+([Dd][Ss])\s+(\d+,\".\")\s+(;.*)$/) {
$label = '';
$mnemonic = $1;
$operand = $2;
$comment = $3;
} elsif ($line =~ /^\s+([Dd][Ss])\s+(\d+,\".\")\s*$/) {
$label = '';
$mnemonic = $1;
$operand = $2;
$comment = '';
} elsif ($line =~ /^(\S+)\s+([Dd][Ss])\s+(\d+,\".\")\s+(;.*)$/) {
$label = $1;
$mnemonic = $2;
$operand = $3;
$comment = $3;
} elsif ($line =~ /^(\S+)\s+([Dd][Ss])\s+(\d+,\".\")\s*$/) {
$label = $1;
$mnemonic = $2;
$operand = $3;
$comment = '';
} else { } else {
print sprintf("SYNTAX ERROR! %-4d %s\n", $lineno, $line); print sprintf("SYNTAX ERROR! %-4d %s\n", $lineno, $line);
} }
@ -2227,6 +2275,8 @@ sub parse_line {
$mnemonic = '' unless defined $mnemonic; $mnemonic = '' unless defined $mnemonic;
$operand = '' unless defined $operand; $operand = '' unless defined $operand;
print "label=$label mnemonic=$mnemonic operand=$operand comment=$comment\n" if $debug;
return ($label, $mnemonic, $operand, $comment); return ($label, $mnemonic, $operand, $comment);
} }
@ -2389,9 +2439,17 @@ if (open($ifh, "<$input_file")) {
my $symbol = $label; my $symbol = $label;
$symbols{$symbol} = sprintf("\$%04x", $addr); $symbols{$symbol} = sprintf("\$%04x", $addr);
} }
my ($str) = $operand =~ /^\"(.+)\"([0-9a-fA-F]*)$/; my $str = '';
my $trl;
if ($operand =~ /^\"(.+)\"([0-9a-fA-F]*)$/) {
$str = $1;
$trl = $2;
} elsif ($operand =~ /^'(.+)'([0-9a-fA-F]*)$/) {
$str = $1;
$trl = $2;
}
$addr += length($str); $addr += length($str);
$addr++ if defined $2; $addr++ if defined $trl;
} elsif ($ucmnemonic =~ /HBY/) { } elsif ($ucmnemonic =~ /HBY/) {
if ($label ne '') { if ($label ne '') {
my $symbol = $label; my $symbol = $label;
@ -2410,10 +2468,15 @@ if (open($ifh, "<$input_file")) {
$symbols{$symbol} = sprintf("\$%04x", $addr); $symbols{$symbol} = sprintf("\$%04x", $addr);
} }
##FIXME -- implement this ##FIXME -- implement this
} elsif ($ucmnemonic =~ /OBJ|CHK|LST|END/) { } elsif ($ucmnemonic =~ /OBJ|CHK|LST|END|SAV/) {
# Just ignore this # Just ignore this
} elsif ($ucmnemonic =~ /MAC/) { } elsif ($ucmnemonic =~ /MAC/) {
print "**** Unsupported **** '$line'\n"; print "**** MACRO START **** '$line'\n";
$macros{$label} = '';
$in_macro = 1;
} elsif ($ucmnemonic =~ /\<\<\</) {
print "**** MACRO END **** '$line'\n";
$in_macro = 0;
# Mnemonic Addressing mode Form Opcode Size Timing # Mnemonic Addressing mode Form Opcode Size Timing
} elsif (defined $mnemonics{$ucmnemonic}) { } elsif (defined $mnemonics{$ucmnemonic}) {
my $foundit = 0; my $foundit = 0;
@ -2428,6 +2491,8 @@ if (open($ifh, "<$input_file")) {
if (! $foundit) { if (! $foundit) {
print "!!!! $lineno - Unrecognized addressing mode '$line'!\n"; print "!!!! $lineno - Unrecognized addressing mode '$line'!\n";
} }
} elsif (defined $macros{$ucmnemonic}) {
print "#### MACRO $ucmnemonic ####\n";
} else { } else {
print "$lineno - Unknown mnemonic '$mnemonic' in '$line'\n"; print "$lineno - Unknown mnemonic '$mnemonic' in '$line'\n";
} }
@ -2483,7 +2548,7 @@ if (open($ifh, "<$input_file")) {
my $ucmnemonic = uc($mnemonic); my $ucmnemonic = uc($mnemonic);
# Skip ORG, EQU and OBJ on pass 2. # Skip ORG, EQU and OBJ on pass 2.
if ($ucmnemonic =~ /ORG|EQU|\.EQ|OBJ|LST|^=$|END/) { if ($ucmnemonic =~ /ORG|EQU|\.EQ|OBJ|LST|^=$|END|SAV/) {
print sprintf(" %-4d %s\n", $lineno, $line) if $code_listing; print sprintf(" %-4d %s\n", $lineno, $line) if $code_listing;
next; next;
} }
@ -2509,7 +2574,14 @@ if (open($ifh, "<$input_file")) {
generate_bytes($ofh, $addr, \@bytes, $lineno, $line); generate_bytes($ofh, $addr, \@bytes, $lineno, $line);
} elsif ($ucmnemonic =~ /ASC|DCI|INV|FLS|BLK|REV|STR/) { } elsif ($ucmnemonic =~ /ASC|DCI|INV|FLS|BLK|REV|STR/) {
# Unpack string dats. # Unpack string dats.
my ($str, $trl) = $operand =~ /^\"(.+)\"([0-9a-fA-F]*)$/; my ($str, $trl);
if ($operand =~ /^\"(.+)\"([0-9a-fA-F]*)$/) {
$str = $1;
$trl = $2;
} elsif ($operand =~ /^'(.+)'([0-9a-fA-F]*)$/) {
$str = $1;
$trl = $2;
}
my @bytes = map { pack('C', ord($_) | 0x80) } ($str =~ /(.)/g); my @bytes = map { pack('C', ord($_) | 0x80) } ($str =~ /(.)/g);
if ($ucmnemonic eq 'REV') { if ($ucmnemonic eq 'REV') {
@bytes = reverse @bytes; @bytes = reverse @bytes;
@ -2578,15 +2650,19 @@ if (open($ifh, "<$input_file")) {
} elsif ($ucmnemonic =~ /^DS$/) { } elsif ($ucmnemonic =~ /^DS$/) {
# Decimal # Decimal
my $strlen = 0; my $strlen = 0;
my $val = 0x00;
if ($operand =~ /^(\d+)/) { if ($operand =~ /^(\d+)/) {
$strlen = $1; $strlen = $1;
} elsif ($operand =~ /^(\d+),"(.)["]*/) {
$val = ord($1);
# Hex # Hex
} elsif ($operand =~ /^\$([0-9a-fA-F][0-9a-fA-F])/) { } elsif ($operand =~ /^\$([0-9a-fA-F][0-9a-fA-F])/) {
$strlen = hex(lc($1)); $strlen = hex(lc($1));
##FIXME -- probably need to add ," " support here.
} }
my @bytes; my @bytes;
for (my $loopc = 0; $loopc < $strlen; $loopc++) { for (my $loopc = 0; $loopc < $strlen; $loopc++) {
push @bytes, pack('C', 0x00); push @bytes, pack('C', $val);
} }
generate_bytes($ofh, $addr, \@bytes, $lineno, $line); generate_bytes($ofh, $addr, \@bytes, $lineno, $line);
} elsif ($ucmnemonic =~ /^DB$/) { } elsif ($ucmnemonic =~ /^DB$/) {
@ -2621,10 +2697,18 @@ if (open($ifh, "<$input_file")) {
##FIXME -- implement this ##FIXME -- implement this
} elsif ($ucmnemonic =~ /DFS/) { } elsif ($ucmnemonic =~ /DFS/) {
##FIXME -- implement this ##FIXME -- implement this
} elsif ($ucmnemonic =~ /MAC/i) { } elsif ($ucmnemonic =~ /MAC/) {
print "**** Unsupported **** '$line'\n"; #print "**** Unsupported **** '$line'\n";
## Ignore
} elsif ($ucmnemonic =~ /\<\<\</) {
#print "**** Unsupported **** '$line'\n";
## Ignore
} elsif ($ucmnemonic eq 'CHK') { } elsif ($ucmnemonic eq 'CHK') {
generate_8($ofh, $addr, $checksum, $lineno, $line); generate_8($ofh, $addr, $checksum, $lineno, $line);
} elsif (defined $macros{$ucmnemonic}) {
print "#### MACRO $ucmnemonic ####\n";
print sprintf(" %-4d %s\n", $lineno, $line) if $code_listing;
print "**** Not yet implemented ****\n";
} else { } else {
print "$lineno - Unknown mnemonic '$mnemonic' in '$line'\n"; print "$lineno - Unknown mnemonic '$mnemonic' in '$line'\n";
} }