Started mapping out two byte instructions

diff --git a/ROM/makeasm.pl b/ROM/makeasm.pl
index 98faa9e..bdc48a9 100755 (executable)
--- a/ROM/makeasm.pl
+++ b/ROM/makeasm.pl
@@ -11,6 +11,7 @@ my %transtable = ( '02' => 'IDIV' ,
                        '0E' => 'CLI',
                        '0F' => 'SEI',
                        '19' => 'DAA',
+                       '1B' => 'ABA',
                        '30' => 'TSX',
                        '31' => 'INS',
                        '32' => 'PULA',
@@ -21,6 +22,7 @@ my %transtable = ( '02' => 'IDIV' ,
                        '37' => 'PSHB',
                        '3C' => 'PSHX',
                        '38' => 'PULX',
+                       '3A' => 'ABX',
                        '3B' => 'RTI',
                        '3E' => 'WAI',
                        '43' => 'COMA',
@@ -40,6 +42,12 @@ my %transtable = ( '02' => 'IDIV' ,
                #       '10' => 'SBA',
 
 
+my %twobytefirst = ( '18' => '1' );
+
+my %twobytesecond = ( '18 38' => 'PULY',
+                       '18 3A' => 'ABY',
+                       '18 3C' => 'PSHY');
+
 LINE: while (<>) {
 
 # if blank line, print blank line
@@ -85,40 +93,16 @@ sub instruction {
        return;
     }
    
-    # FIXME: parse instruction
-    #if (defined($transtable{$instruction})) {
-    #  print "\t$transtable{$instruction}";
-#      if (defined($comment)) { print "; $comment"; }
-#      print "\n";
-#      return;
-#    }
-
-#        chomp;
-#        $l = length;
-#        if ($l == 42) {
-#                print "$_\n";
-#                next;
-#        } elsif ($l != 33) {
-#                print "$_\n";
-#                next;
-#        } else {
-# 
-#        $addr = substr($_,0,4);
-#        $inst = substr($_,27,3);
-#        $val = substr($_,31,2);
-# 
-#        #print "$val\n";
-#        $daddr = (hex $addr) + 2 + convert($val);
-# 
-# 
-#        if (defined $commands{$inst}) {
-#                print "$_\t\t;";
-#                printf "%4X", $daddr;
-#                #print " $addr $inst $val\n";
-#                print "\n";
-#        }
-#        }
-
+    if (defined $twobytefirst{$instruction}) {
+       $thing = substr($line,5,5);
+       if (defined $twobytesecond{$thing}) {
+               print "\t" . $twobytesecond{$thing};
+               $line =~ /$twobytesecond{$thing}(.*)$/i;
+               print "$1\n";
+               return;
+       }
+    }
+   
     if ($line =~ /^([A-F0-9]{4}) ((([A-F0-9]{2}) )*[A-F0-9]{2})/) {
         @_=split(' ',$2);
         print "\tFCB\t\$".join(', $',@_)."\n";