times 1 - (($ - $$) & 1) nop    ; align in-code parameter
        call entry_to_code_sel, exc_code


                ; $ - $$        = offset into section
                ; % 2           = 1 if odd offset, 0 if even
                ; 2 -           = 1 if odd, 2 if even
                ; % 2           = 1 if odd, 0 if even
        ; resb (2 - (($-$$) % 2)) % 2
                ; $ - $$        = offset into section
                ; % 2           = 1 if odd offset, 0 if even
                ; 1 -           = 0 if odd, 1 if even
        resb 1 - (($-$$) % 2)           ; make line_out aligned
trim_overflow:  resb 1                  ; actually part of line_out to avoid overflow of trimputs loop
line_out:       resb 263
                resb 1                  ; reserved for terminating zero
line_out_end: