mirror of
https://github.com/cc65/cc65.git
synced 2024-08-17 03:29:15 +00:00
26 lines
666 B
ArmAsm
26 lines
666 B
ArmAsm
;
|
|
; 1998-06-02, Ullrich von Bassewitz
|
|
; 2013-05-01, Greg King
|
|
;
|
|
; int isgraph (int c);
|
|
;
|
|
|
|
.export _isgraph
|
|
.include "ctype.inc"
|
|
|
|
_isgraph:
|
|
cpx #>0 ; Char range OK?
|
|
bne @L1 ; Jump if no
|
|
tay
|
|
lda __ctype,y ; Get character classification
|
|
and #CT_CTRL_SPACE ; Mask character bits
|
|
cmp #1 ; If false, then set "borrow" flag
|
|
lda #0
|
|
sbc #0 ; Invert logic
|
|
rts ; Return NOT control and NOT space
|
|
|
|
@L1: lda #<0 ; Return false
|
|
tax
|
|
rts
|
|
|