Improved code generation

src/build/core/ExecuteRegisterNumber.go

@@ -0,0 +1,33 @@
+package core
+
+import (
+	"git.akyoto.dev/cli/q/src/build/asm"
+	"git.akyoto.dev/cli/q/src/build/cpu"
+	"git.akyoto.dev/cli/q/src/build/errors"
+	"git.akyoto.dev/cli/q/src/build/token"
+)
+
+// ExecuteRegisterNumber performs an operation on a register and a number.
+func (f *Function) ExecuteRegisterNumber(operation token.Token, register cpu.Register, number int) error {
+	switch operation.Text() {
+	case "+", "+=":
+		f.assembler.RegisterNumber(asm.ADD, register, number)
+
+	case "-", "-=":
+		f.assembler.RegisterNumber(asm.SUB, register, number)
+
+	case "*", "*=":
+		f.assembler.RegisterNumber(asm.MUL, register, number)
+
+	case "/", "/=":
+		f.assembler.RegisterNumber(asm.DIV, register, number)
+
+	case "=":
+		f.assembler.RegisterNumber(asm.MOVE, register, number)
+
+	default:
+		return errors.New(&errors.InvalidOperator{Operator: operation.Text()}, f.File, operation.Position)
+	}
+
+	return nil
+}