error: Must specify exactly 2 characters for option 'b'
    at invalid-opt.asm(1)
error: Invalid digit for binary constant '_'
    at invalid-opt.asm(2)
error: Changed digit for binary constant '1'
    at invalid-opt.asm(3)
error: Repeated digit for binary constant '0'
    at invalid-opt.asm(4)
error: Must specify exactly 4 characters for option 'g'
    at invalid-opt.asm(5)
error: Invalid digit for graphics constant '_'
    at invalid-opt.asm(6)
error: Invalid digit for graphics constant '$'
    at invalid-opt.asm(7)
error: Changed digit for graphics constant '2'
    at invalid-opt.asm(8)
error: Repeated digit for graphics constant 'x'
    at invalid-opt.asm(9)
error: Repeated digit for graphics constant 'y'
    at invalid-opt.asm(10)
error: Invalid argument for option 'p'
    at invalid-opt.asm(11)
error: Argument for option 'p' must be between 0 and 0xFF
    at invalid-opt.asm(12)
error: Invalid argument for option 'Q'
    at invalid-opt.asm(13)
error: Argument for option 'Q' must be between 1 and 31
    at invalid-opt.asm(14)
error: Argument for option 'Q' must be between 1 and 31
    at invalid-opt.asm(15)
error: Argument for option 'r' is out of range
    at invalid-opt.asm(16)
error: Must specify an argument for option 'W'
    at invalid-opt.asm(17)
error: syntax error, unexpected end of line, expecting string
    at invalid-opt.asm(18)
error: No entries in the option stack
    at invalid-opt.asm(19)
Assembly aborted with 19 errors
