// What this really does is expand the # of handlers, which is why the
// opcode has to be passed into the opcode handler...
// E.g., $F620 maps into $F621-F627 as well; this code does this expansion.
// What this really does is expand the # of handlers, which is why the
// opcode has to be passed into the opcode handler...
// E.g., $F620 maps into $F621-F627 as well; this code does this expansion.