1; 2; Ullrich von Bassewitz, 06.08.1998 3; 4; unsigned char kbhit (void); 5; 6 7 .export _kbhit 8 9 .include "plus4.inc" 10 11 12.proc _kbhit 13 14 ldx #0 ; High byte of return is always zero 15 lda KEY_COUNT ; Get number of characters 16 ora FKEY_COUNT ; Or with number of chars from function keys 17 beq L9 18 lda #1 19L9: rts 20 21.endproc 22 23 24 25