From e7f4ad9168349c5465b6e215acddd1ca9f9cc20f Mon Sep 17 00:00:00 2001
From: pagefault <>
Date: Sun, 20 Jul 2003 01:48:42 +0000
Subject: [PATCH] SRAM memory map fix for loroms

---
 zsnes/src/cpu/memory.asm | 12 ++++++++++++
 zsnes/src/init.asm       | 20 ++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/zsnes/src/cpu/memory.asm b/zsnes/src/cpu/memory.asm
index 013dbdd6..7c3f71dc 100644
--- a/zsnes/src/cpu/memory.asm
+++ b/zsnes/src/cpu/memory.asm
@@ -4285,6 +4285,10 @@ NEWSYM memaccessbankr1648mb
 
 NEWSYM sramaccessbankr8
     push ecx
+    cmp bl,0F0h
+    jne .notf0
+    sub bl,80h
+.notf0
     sub bl,70h
     shl ebx,15
     add ecx,ebx
@@ -4302,6 +4306,10 @@ NEWSYM sramaccessbankr16
 NEWSYM sramaccessbankw8
     push ecx
     sub bl,70h
+    cmp bl,0F0h
+    jne .notf0
+    sub bl,80h
+.notf0
     shl ebx,15
     add ecx,ebx
     call sramaccessbankw8b
@@ -4309,6 +4317,10 @@ NEWSYM sramaccessbankw8
     ret
 NEWSYM sramaccessbankw16
     push ecx
+    cmp bl,0F0h
+    jne .notf0
+    sub bl,80h
+.notf0
     sub bl,70h
     shl ebx,15
     add ecx,ebx
diff --git a/zsnes/src/init.asm b/zsnes/src/init.asm
index fd40129d..29403f5a 100644
--- a/zsnes/src/init.asm
+++ b/zsnes/src/init.asm
@@ -5993,6 +5993,26 @@ NEWSYM CheckROMType
     mov dword[memtabler16+79h*4],memaccessbankr16
     mov dword[memtablew16+79h*4],memaccessbankw16
 
+    cmp byte[romtype],1
+    jne near .notlorom
+    mov dword[memtabler8+0F0h*4],sramaccessbankr8
+    mov dword[memtablew8+0F0h*4],sramaccessbankw8
+    mov dword[memtabler16+0F0h*4],sramaccessbankr16
+    mov dword[memtablew16+0F0h*4],sramaccessbankw16
+    mov dword[memtabler8+0F1h*4],sramaccessbankr8
+    mov dword[memtablew8+0F1h*4],sramaccessbankw8
+    mov dword[memtabler16+0F1h*4],sramaccessbankr16
+    mov dword[memtablew16+0F1h*4],sramaccessbankw16
+    mov dword[memtabler8+0F2h*4],sramaccessbankr8
+    mov dword[memtablew8+0F2h*4],sramaccessbankw8
+    mov dword[memtabler16+0F2h*4],sramaccessbankr16
+    mov dword[memtablew16+0F2h*4],sramaccessbankw16
+    mov dword[memtabler8+0F3h*4],sramaccessbankr8
+    mov dword[memtablew8+0F3h*4],sramaccessbankw8
+    mov dword[memtabler16+0F3h*4],sramaccessbankr16
+    mov dword[memtablew16+0F3h*4],sramaccessbankw16
+.notlorom
+
     ; Chip Detection
     mov byte[SFXEnable],0
     mov byte[C4Enable],0