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'use strict';
const { AddrMode } = require('./enum.js');
exports.DAT = function(core, pc, ins) {
// do nothing and die
return [];
}
exports.MOV = function(core, pc, ins) {
if (ins.a.mode === AddrMode.Immediate) {
const dst = core.getValue(pc, ins.b);
dst.b.value = ins.a.value;
} else {
const src = core.getValue(pc, ins.a);
const dstLocation = core.getLocation(pc, ins.b);
// hacky deep copy
core.data[dstLocation] = JSON.parse(JSON.stringify(src));
}
return [pc + 1];
}
exports.ADD = function(core, pc, ins) {
if (ins.a.mode === AddrMode.Immediate) {
const dst = core.getValue(pc, ins.b);
dst.b.value += ins.a.value;
} else {
const src = core.getValue(pc, ins.a);
const dst = core.getValue(pc, ins.b);
dst.a.value += src.a.value;
dst.b.value += src.b.value;
}
return [pc + 1];
}
exports.SUB = function(core, pc, ins) {
if (ins.a.mode === AddrMode.Immediate) {
const dst = core.getValue(pc, ins.b);
dst.b.value -= ins.a.value;
} else {
const src = core.getValue(pc, ins.a);
const dst = core.getValue(pc, ins.b);
dst.a.value -= src.a.value;
dst.b.value -= src.b.value;
}
return [pc + 1];
}
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