Get rid of UB when calculating tile target memory location

ArqueologiaDigital · Jun 27, 2022 · 81a1cbe · 81a1cbe
1 parent 879e973
commit 81a1cbe
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/platforms/msdos/video.c b/platforms/msdos/video.c
@@ -207,7 +207,7 @@ static inline void set_tile_full(uint8_t dst_x, uint8_t dst_y, uint8_t tile, int
 {
     static uint8_t __far *video_seg = (uint8_t __far *)0xa0000000;
     uint8_t __far *video_seg_start =
-        &video_seg[320 * (int)dst_y * 8 + (int)dst_x * 8];
+        &video_seg[320 * (unsigned int)dst_y * 8 + (unsigned int)dst_x * 8];
     const uint16_t offs = get_tile_offset(tile);
     const uint16_t off_high = 8 * (offs >> 4);
     const uint16_t off_low = 8 * (offs & 0xf);