1
0
mirror of https://github.com/cc65/cc65.git synced 2024-06-18 07:29:36 +00:00
cc65/asminc/cbm.mac
Oliver Schmidt 54299fae5a Replaced builtin macro packages with .mac files that are included like ordinary .inc files.
The benefits are:
- Independency of ca65 build from perl
- More transparent behaviour
2013-04-08 00:11:05 +02:00

63 lines
1.6 KiB
Plaintext

; Convert characters to screen codes
; Helper macro that converts and outputs one character
.macro _scrcode char
.if (char >= '@' .and char <= 'z')
.byte (char - '@')
.elseif (char >= 'A' .and char <= 'Z')
.byte (char - 'A' + 65)
.elseif (char = '[')
.byte 27
.elseif (char = ']')
.byte 29
.elseif (char = '^')
.byte 30
.elseif (char = '_')
.byte 31
.elseif (char < 256)
.byte char
.else
.error "scrcode: Character constant out of range"
.endif
.endmacro
.macro scrcode 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
_scrcode {.strat (arg1, i)}
.endrepeat
; Check for a number
.elseif .match (.left (1, {arg1}), 0)
; Just output the number
_scrcode arg1
; Check for a character
.elseif .match (.left (1, {arg1}), 'a')
; Just output the character
_scrcode arg1
; Anything else is an error
.else
.error "scrcode: invalid argument type"
.endif
; Call the macro recursively with the remaining args
scrcode arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
.endmacro