fixed screensize, timertick, revers mode

2015-07-16 16:00:32 +02:00
parent 1414411bba
commit 21ef6b8510
8 changed files with 86 additions and 27 deletions
--- a/libsrc/pce/_scrsize.s
+++ b/libsrc/pce/_scrsize.s
@@ -0,0 +1,18 @@
+;
+; Screen size variables
+;
+                .include "pce.inc"
+
+                .export screensize
+screensize:
+                ldx     xsize
+                ldy     ysize
+                rts
+
+; FIXME: changing the video mode allows for different screen sizes
+
+.rodata
+                .export xsize, ysize
+
+xsize:          .byte charsperline
+ysize:          .byte screenrows