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setcursor now updates OLDADR from COLCRS and ROWCRS

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1655 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cpg 2002-11-26 21:31:01 +00:00
parent 6598be68b2
commit 16af39de8d
1 changed files with 22 additions and 5 deletions
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25
libsrc/atari/cgetc.s
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@ -6,8 +6,8 @@
;
.include "atari.inc"
.export _cgetc
.import cursor
.export _cgetc,setcursor
.import cursor,mul40
_cgetc:
jsr setcursor
@ -26,8 +26,25 @@ _cgetc:
.proc setcursor
lda OLDCHR ; get char at current cursor position
ldy #0 ; needed later
ldy #0
lda OLDCHR
sta (OLDADR),y
lda ROWCRS
jsr mul40
clc
adc SAVMSC ; add start of screen memory
sta OLDADR
txa
adc SAVMSC+1
sta OLDADR+1
lda COLCRS
adc OLDADR
sta OLDADR
bcc nc
inc OLDADR+1
nc: lda (OLDADR),y
sta OLDCHR
ldx cursor ; current cursor setting as requested by the user
beq off