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cc65/libsrc/geos-common/conio/cgetc.s

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;
; Maciej 'YTM/Elysium' Witkowiak
;
; 27.10.2001
; 06.03.2002
; unsigned char cgetc (void);
.export _cgetc
.import cursor, _PromptOff
.importzp cursor_x, cursor_y
.include "jumptab.inc"
.include "geossym.inc"
_cgetc:
; show cursor if needed
lda cursor
beq L0
; prepare cursor
lda #7
jsr InitTextPrompt
lda cursor_x
ldx cursor_x+1
sta stringX
stx stringX+1
lda cursor_y
sta stringY
jsr PromptOn
L0: jsr GetNextChar
tax
beq L0
pha
jsr _PromptOff
pla
ldx #0
rts