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Fixed isgraph() and ispunct() (macroes and library functions).

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Greg King
2013-05-01 15:04:36 -04:00
parent 42494c6323
commit b225adaf03
3 changed files with 37 additions and 27 deletions
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17
libsrc/common/ispunct.s
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@@ -1,22 +1,25 @@
;
; Ullrich von Bassewitz, 02.06.1998
; 1998-06-02, Ullrich von Bassewitz
; 2013-05-01, Greg King
;
; int ispunct (int c);
;
.export _ispunct
.include "ctype.inc"
.include "ctype.inc"
_ispunct:
cpx #$00 ; Char range ok?
cpx #>0 ; Char range OK?
bne @L1 ; Jump if no
tay
lda __ctype,y ; Get character classification
eor #CT_NOT_PUNCT ; NOT (space | control | digit | alpha)
and #CT_NOT_PUNCT ; Mask relevant bits
rts
and #CT_NOT_PUNCT ; Mask relevant bits
cmp #1 ; If false, then set "borrow" flag
lda #0
sbc #0 ; Invert logic
rts ; Return NOT (space | control | digit | alpha)
@L1: lda #$00 ; Return false
@L1: lda #<0 ; Return false
tax
rts