added waitvblank and fixed get_tv

2015-07-15 19:46:26 +02:00
parent c3d45e4c47
commit 1414411bba
5 changed files with 39 additions and 9 deletions
--- a/libsrc/pce/waitvblank.s
+++ b/libsrc/pce/waitvblank.s
@@ -0,0 +1,18 @@
+;
+; void waitvblank (void);
+;
+
+        .include "pce.inc"
+
+        .export         _waitvblank
+;;        .importzp       tickcount
+
+.proc   _waitvblank
+
+        lda tickcount
+@lp:    cmp tickcount
+        beq @lp
+        rts
+
+.endproc
+