From f6523e2c0111710fa79823331eff360f73f5641e Mon Sep 17 00:00:00 2001
From: negativeExponent <negativeExponent@users.noreply.github.com>
Date: Sun, 10 May 2020 19:03:04 +0800
Subject: [PATCH] libretro: Fix cheevos memory map for GB games using external
 RAM

---
 src/platform/libretro/libretro.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/platform/libretro/libretro.c b/src/platform/libretro/libretro.c
index 3e50f423b..0d2d0e60b 100644
--- a/src/platform/libretro/libretro.c
+++ b/src/platform/libretro/libretro.c
@@ -463,7 +463,7 @@ static void _setupMaps(struct mCore* core) {
 		/* Map VRAM */
 		descs[i].ptr    = gb->video.vram;
 		descs[i].start  = GB_BASE_VRAM;
-		descs[i].len    = GB_SIZE_VRAM;
+		descs[i].len    = GB_SIZE_VRAM_BANK0;
 		i++;
 
 		/* Map working RAM */
@@ -505,8 +505,8 @@ static void _setupMaps(struct mCore* core) {
 		i++;
 
 		/* Map External RAM */
-		if (savedataSize) {
-			descs[i].ptr    = savedata;
+		if (gb->memory.sram) {
+			descs[i].ptr    = gb->memory.sram;
 			descs[i].start  = GB_BASE_EXTERNAL_RAM;
 			descs[i].len    = savedataSize;
 			i++;