Simplified file structure

src/core/ExecuteRegisterRegister.go

@@ -0,0 +1,57 @@
+package core
+
+import (
+	"git.akyoto.dev/cli/q/src/arch/x64"
+	"git.akyoto.dev/cli/q/src/asm"
+	"git.akyoto.dev/cli/q/src/cpu"
+	"git.akyoto.dev/cli/q/src/errors"
+	"git.akyoto.dev/cli/q/src/token"
+)
+
+// ExecuteRegisterRegister performs an operation on two registers.
+func (f *Function) ExecuteRegisterRegister(operation token.Token, register cpu.Register, operand cpu.Register) error {
+	if !operation.IsAssignment() && !operation.IsComparison() {
+		f.SaveRegister(register)
+	}
+
+	switch operation.Kind {
+	case token.Add, token.AddAssign:
+		f.RegisterRegister(asm.ADD, register, operand)
+
+	case token.Sub, token.SubAssign:
+		f.RegisterRegister(asm.SUB, register, operand)
+
+	case token.Mul, token.MulAssign:
+		f.RegisterRegister(asm.MUL, register, operand)
+
+	case token.Div, token.DivAssign:
+		f.SaveRegister(x64.RAX)
+		f.SaveRegister(x64.RDX)
+		f.RegisterRegister(asm.DIV, register, operand)
+
+	case token.Mod, token.ModAssign:
+		f.SaveRegister(x64.RAX)
+		f.SaveRegister(x64.RDX)
+		f.RegisterRegister(asm.MODULO, register, operand)
+
+	case token.And, token.AndAssign:
+		f.RegisterRegister(asm.AND, register, operand)
+
+	case token.Or, token.OrAssign:
+		f.RegisterRegister(asm.OR, register, operand)
+
+	case token.Xor, token.XorAssign:
+		f.RegisterRegister(asm.XOR, register, operand)
+
+	case token.Assign:
+		f.RegisterRegister(asm.MOVE, register, operand)
+
+	case token.Equal, token.NotEqual, token.Less, token.LessEqual, token.Greater, token.GreaterEqual:
+		f.RegisterRegister(asm.COMPARE, register, operand)
+
+	default:
+		return errors.New(&errors.InvalidOperator{Operator: operation.Text(f.File.Bytes)}, f.File, operation.Position)
+	}
+
+	return nil
+}