add method
void
add()
Implementation
void add() {
//Debugger.verbose('${pcHex(-1)} [add]');
final operands = mem.loadb(programCounter- 1) < 193
? visitOperandsLongForm()
: visitOperandsVar(2, false);
final resultTo = readb();
final result = MathHelper.toSigned(operands[0].value!) + MathHelper.toSigned(operands[1].value!);
//Debugger.verbose(' >>> (add ${pc.toRadixString(16)}) ${operands[0].value}(${toSigned(operands[0].value)}) + ${operands[1].value}(${toSigned(operands[1].value)}) = $result');
writeVariable(resultTo, result);
}