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cc65/libsrc/telestrat/cgetc.s
Christian Groessler 58484449b4 remove TABs
2019-02-05 23:27:52 +01:00

29 lines
942 B
ArmAsm

;
; jede jede@oric.org 2017-10-01
;
.export _cgetc
.import cursor
.include "telestrat.inc"
.proc _cgetc
; this routine could be quicker if we wrote in page 2 variables,
; but it's better to use telemon routine in that case, because telemon can manage 4 I/O
ldx cursor ; if cursor equal to 0, then switch off cursor
beq switchoff_cursor
ldx #$00 ; x is the first screen
BRK_TELEMON(XCSSCR) ; display cursor
jmp loop ; could be replaced by a bne/beq but 'jmp' is cleaner than a bne/beq which could expect some matters
switchoff_cursor:
; at this step X is equal to $00, X must be set, because it's the id of the screen (telestrat can handle 4 virtuals screen)
BRK_TELEMON(XCOSCR) ; switch off cursor
loop:
BRK_TELEMON XRD0 ; waits until key is pressed
bcs loop
rts
.endproc