mirror of
https://codeberg.org/cryu/micro-sci-a2-controller
synced 2024-12-03 14:49:18 +00:00
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
; Convert characters to screen codes
|
|
; Modified to pass through codes below 12
|
|
|
|
; Helper macro that converts and outputs one character
|
|
.macro _screencode char
|
|
.if (char < 256)
|
|
.if (char > 11)
|
|
.byte (char | $80)
|
|
.else
|
|
.byte (char)
|
|
.endif
|
|
.else
|
|
.error "screencode: Character constant out of range"
|
|
.endif
|
|
.endmacro
|
|
|
|
.macro screencode arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
|
|
|
|
; Bail out if next argument is empty
|
|
.if .blank (arg1)
|
|
.exitmacro
|
|
.endif
|
|
|
|
; Check for a string
|
|
.if .match ({arg1}, "")
|
|
|
|
; Walk over all string chars
|
|
.repeat .strlen (arg1), i
|
|
_screencode {.strat (arg1, i)}
|
|
.endrepeat
|
|
|
|
; Check for a number
|
|
.elseif .match (.left (1, {arg1}), 0)
|
|
|
|
; Just output the number
|
|
_screencode arg1
|
|
|
|
; Check for a character
|
|
.elseif .match (.left (1, {arg1}), 'a')
|
|
|
|
; Just output the character
|
|
_screencode arg1
|
|
|
|
; Anything else is an error
|
|
.else
|
|
|
|
.error "screencode: invalid argument type"
|
|
|
|
.endif
|
|
|
|
; Call the macro recursively with the remaining args
|
|
screencode arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
|
|
.endmacro
|