Created a target and a library for the Commander X16 prototype computer.

2019-09-27 03:38:51 -04:00
parent 0896deedef
commit 18afc7c703
49 changed files with 2440 additions and 59 deletions
--- a/libsrc/cx16/kbhit.s
+++ b/libsrc/cx16/kbhit.s
@@ -0,0 +1,17 @@
+;
+; 2019-09-20, Greg King
+;
+; unsigned char kbhit (void);
+; /* Returns non-zero (true) if a typed character is waiting. */
+;
+
+        .export         _kbhit
+
+        .include        "cx16.inc"
+
+
+.proc   _kbhit
+        ldx     #>$0000         ; High byte of return
+        lda     KEY_COUNT       ; Get number of characters
+        rts
+.endproc