Пример #1
0
func compileComparison(ctx *context, n *node.BinaryNode) {
	compileBinaryOperands(ctx, n)
	switch n.Type() {
	case node.Equals:
		ctx.AppendOp(vm.TXOPEquals)
	case node.NotEquals:
		ctx.AppendOp(vm.TXOPNotEquals)
	case node.LT:
		ctx.AppendOp(vm.TXOPLessThan)
	case node.GT:
		ctx.AppendOp(vm.TXOPGreaterThan)
	default:
		panic("Unknown operator")
	}
}
Пример #2
0
func compileBinaryArithmetic(ctx *context, n *node.BinaryNode) {
	var optype vm.OpType
	switch n.Type() {
	case node.Plus:
		optype = vm.TXOPAdd
	case node.Minus:
		optype = vm.TXOPSub
	case node.Mul:
		optype = vm.TXOPMul
	case node.Div:
		optype = vm.TXOPDiv
	default:
		panic("Unknown arithmetic")
	}
	ctx.AppendOp(vm.TXOPNoop).SetComment("BEGIN " + optype.String())
	compileBinaryOperands(ctx, n)
	ctx.AppendOp(optype).SetComment("Execute " + optype.String() + " on registers sa and sb")
}