mirror of
https://github.com/cc65/cc65.git
synced 2024-06-08 15:29:37 +00:00
ae7a38f3de
The functions return the character, or its attributes, that is at the current screen location of conio's cursor. The values can be used directly by the output functions to reproduce that screen character.
29 lines
622 B
ArmAsm
29 lines
622 B
ArmAsm
;
|
|
; 2020-07-14, Groepaz
|
|
;
|
|
; unsigned char cpeekcolor (void);
|
|
;
|
|
; get color from current position, do NOT advance cursor
|
|
|
|
.export _cpeekcolor
|
|
|
|
.include "pce.inc"
|
|
.include "extzp.inc"
|
|
|
|
_cpeekcolor:
|
|
st0 #VDC_MARR ; Memory-Address Read
|
|
ldy SCREEN_PTR
|
|
ldx SCREEN_PTR+1
|
|
sty a:VDC_DATA_LO
|
|
stx a:VDC_DATA_HI
|
|
|
|
st0 #VDC_VRR ; VRAM Read Register
|
|
lda a:VDC_DATA_HI
|
|
and #<~$02
|
|
lsr a
|
|
lsr a
|
|
lsr a
|
|
lsr a
|
|
ldx #0
|
|
rts
|