ref: b037d54f64917b1df175f33226ef21f20f94b0f7
dir: /test/asm/ff00+c-bad.err/
error: ff00+c-bad.asm(8): Expected constant expression equal to $FF00 for "$ff00+c" error: ff00+c-bad.asm(9): Expected constant expression equal to $FF00 for "$ff00+c" error: Assembly aborted (2 errors)!