Simplified code

src/build/register/RegisterRegister.go

@@ -0,0 +1,24 @@
+package register
+
+import (
+	"git.akyoto.dev/cli/q/src/build/asm"
+	"git.akyoto.dev/cli/q/src/build/cpu"
+)
+
+func (f *Machine) RegisterRegister(mnemonic asm.Mnemonic, a cpu.Register, b cpu.Register) {
+	if mnemonic == asm.MOVE && a == b {
+		return
+	}
+
+	if f.RegisterIsUsed(a) && isDestructive(mnemonic) {
+		f.SaveRegister(a)
+	}
+
+	f.Assembler.RegisterRegister(mnemonic, a, b)
+
+	if mnemonic == asm.MOVE {
+		f.UseRegister(a)
+	}
+
+	f.postInstruction()
+}