Update UXN core to latest version

This modernizes the uxn core and emulator approach (dei/deo instead of
_talk), forgoing the previous uxn-fast core implementation. As
a consequence, there are some performance regressions. That tradeoff
gives us an easier way of keeping uxngba up to date as it follows more
closely the upstream version.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/ppu.c b/src/ppu.c
index 0f8fefd..1a13ba3 100644
--- a/src/ppu.c
+++ b/src/ppu.c
@@ -386,6 +386,13 @@ flipbuf(Ppu *p) {
     }
 }
 
+void
+redraw(void) {
+    for (size_t i = 0; i < 21; i++) {
+        dirty_tiles[i] = 0xFFFFFFFF;
+    }
+}
+
 typedef struct KeyboardChar {
     int x;
     int y;