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Multibyte constant - Revision history
2026-04-16T04:31:48Z
Revision history for this page on the wiki
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https://gbdev.gg8.se/wiki/index.php?title=Multibyte_constant&diff=973&oldid=prev
PinoBatch: by ISSOtm
2020-07-26T23:12:54Z
<p>by ISSOtm</p>
<p><b>New page</b></p><div>A convenient way to declare a hexadecimal literal spanning multiple bytes<br />
<br />
== RGBDS ==<br />
<pre><br />
;;<br />
; Multibyte constant declaration macro<br />
; by ISSOtm, 2020-07-26, license: CC0<br />
; Example:<br />
; hexdata 0123, 45, 6789ABCDEF<br />
; produces this:<br />
; db $01,$23,$45,$67,$89,$AB,$CD,$EF<br />
hexdata: macro<br />
ARG_INDEX = 1<br />
REPT _NARG<br />
IF STRLEN("\1") % 2 == 1<br />
FAIL "Length of argument #{d:ARG_INDEX} is not even!"<br />
ENDC<br />
<br />
I = 1<br />
REPT STRLEN("\1") / 2<br />
BYTE equs STRCAT("$", STRSUB("\1", I, 2))<br />
db BYTE<br />
PURGE BYTE<br />
I = I + 2<br />
ENDR<br />
<br />
PURGE I<br />
SHIFT<br />
ARG_INDEX = ARG_INDEX + 1<br />
ENDR<br />
endm<br />
</pre><br />
<br />
== External links ==<br />
* [https://wiki.nesdev.com/w/index.php/Multibyte_constant Multibyte constant] on NESdev Wiki</div>
PinoBatch