Russ Cox <******@****.***> 1692199082 -0400

		result := drain(input)
		if result != test.output {
			t.Errorf("%s: got %q expected %q", test.name, result, test.output)
		}
	}
}

// lines joins the arguments together as complete lines.
func lines(a ...string) string {
	return strings.Join(a, "\n") + "\n"
}

// drain returns a single string representing the processed input tokens.

	XOR $-32768, R6                 // 3be080007fe63278
	XOR $-32768, R6, R7             // 3be080007fe73278
	XOR $1234567, R5                // 6ca5001268a5d687
	XOR $1234567, R5, R3            // 6ca300126863d687
	XORIS $15, R3, R4               // 6c64000f
	XOR   $983040, R3, R4           // 6c64000f

	// TODO: the order of CR operands don't match
	CMP R3, R4                      // 7c232000
	CMPU R3, R4                     // 7c232040