Initial Creativision Import

2013-12-05 11:40:44 +00:00
parent b5ed9a1eff
commit 11be575b6d
23 changed files with 956 additions and 0 deletions
--- a/libsrc/creativision/cgetc.s
+++ b/libsrc/creativision/cgetc.s
@@ -0,0 +1,17 @@
+;* cgetc
+
+    .export   _cgetc
+    .include  "creativision.inc"
+    
+_cgetc:
+    lda #$80
+    
+L1:     
+    bit ZP_KEYBOARD
+    bpl L1
+    
+    lda ZP_KEYBOARD
+    and #$7f
+    rts
+    
+