M CHANGES → CHANGES

@@ -7,6 +7,7 @@ - GBA Audio: Fix stereo in XQ audio
  - GBA Audio: Fix volume/mute in XQ audio (fixes mgba.io/i/1864)
  - GBA Hardware: Fix GB Player detection on big endian platforms
  - GBA Video: Invalidate map cache when modifying BGCNT (fixes mgba.io/i/1846)
+ - GBA Video: Don't draw sprites using unmapped VRAM in GL renderer (fixes mgba.io/i/1865)
 Other fixes:
  - 3DS: Redo video sync to be more precise
  - 3DS: Fix crash with libctru 2.0 when exiting

M src/gba/renderers/gl.c → src/gba/renderers/gl.c

@@ -1647,6 +1647,10 @@ int height = GBAVideoObjSizes[GBAObjAttributesAGetShape(sprite->a) * 4 + GBAObjAttributesBGetSize(sprite->b)][1];
 	int32_t x = (uint32_t) GBAObjAttributesBGetX(sprite->b) << 23;
 	x >>= 23;
 
+	if (GBARegisterDISPCNTGetMode(renderer->dispcnt) >= 3 && GBAObjAttributesCGetTile(sprite->c) < 512) {
+		return;
+	}
+
 	int align = GBAObjAttributesAIs256Color(sprite->a) && !GBARegisterDISPCNTIsObjCharacterMapping(renderer->dispcnt);
 	unsigned charBase = (BASE_TILE >> 1) + (GBAObjAttributesCGetTile(sprite->c) & ~align) * 0x10;
 	int stride = GBARegisterDISPCNTIsObjCharacterMapping(renderer->dispcnt) ? (width >> 3) : (0x20 >> GBAObjAttributesAGet256Color(sprite->a));