mirror of
https://github.com/cc65/cc65.git
synced 2024-06-01 13:41:34 +00:00
22 lines
547 B
ArmAsm
22 lines
547 B
ArmAsm
; isalnum.s
|
|
;
|
|
; This file is part of
|
|
; cc65 - a freeware C compiler for 6502 based systems
|
|
;
|
|
; https://cc65.github.io
|
|
;
|
|
; See "LICENSE" file for legal information.
|
|
;
|
|
; int isalnum (int c);
|
|
;
|
|
|
|
.export _isalnum
|
|
.include "ctype.inc"
|
|
.import ctype_preprocessor
|
|
|
|
_isalnum:
|
|
jsr ctype_preprocessor ; (clears always x)
|
|
bcs @L1 ; out of range? (everything already clear -> false)
|
|
and #CT_ALNUM ; mask character/digit bits
|
|
@L1: rts
|