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

19 lines
350 B
ArmAsm

;
; Maciej 'YTM/Elysium' Witkowiak
;
; 27.10.2001
; unsigned char kbhit (void);
.export _kbhit
.include "geossym.inc"
_kbhit:
ldx #0 ; High byte of result
lda pressFlag
rol ; Bit 7 is new key flag
txa ; A = 0
rol
rts