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cc65/libsrc/cbm510/kbhit.s
cuz dada43f570 More cbm510 changes to make file I/O and kernal access work
git-svn-id: svn://svn.cc65.org/cc65/trunk@2846 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-12-27 16:11:14 +00:00

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260 B
ArmAsm

;
; Ullrich von Bassewitz, 06.08.1998
;
; int kbhit (void);
;
.export _kbhit
.import return0, return1
.import keyidx: zp
.proc _kbhit
lda keyidx ; Get number of characters
bne L1
jmp return0
L1: jmp return1
.endproc