From aa94cbaeb0cca8c3f05639fd93a979b38757f899 Mon Sep 17 00:00:00 2001
From: Arisotura <thetotalworm@gmail.com>
Date: Thu, 3 Sep 2020 11:51:50 +0200
Subject: DSi: add support for 8-bit VRAM writes when enabled in SCFG_EXT.
 fixes #733

---
 src/DSi.cpp        | 14 ++++++++++++++
 src/DSi_Camera.cpp |  4 ++--
 2 files changed, 16 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/DSi.cpp b/src/DSi.cpp
index 66b8ed0..a96322b 100644
--- a/src/DSi.cpp
+++ b/src/DSi.cpp
@@ -912,6 +912,20 @@ void ARM9Write8(u32 addr, u8 val)
     case 0x04000000:
         ARM9IOWrite8(addr, val);
         return;
+
+    case 0x06000000:
+        if (!(SCFG_EXT[0] & (1<<13))) return;
+#ifdef JIT_ENABLED
+        ARMJIT::CheckAndInvalidate<0, ARMJIT_Memory::memregion_VRAM>(addr);
+#endif
+        switch (addr & 0x00E00000)
+        {
+        case 0x00000000: GPU::WriteVRAM_ABG<u8>(addr, val); return;
+        case 0x00200000: GPU::WriteVRAM_BBG<u8>(addr, val); return;
+        case 0x00400000: GPU::WriteVRAM_AOBJ<u8>(addr, val); return;
+        case 0x00600000: GPU::WriteVRAM_BOBJ<u8>(addr, val); return;
+        default: GPU::WriteVRAM_LCDC<u8>(addr, val); return;
+        }
     }
 
     return NDS::ARM9Write8(addr, val);
diff --git a/src/DSi_Camera.cpp b/src/DSi_Camera.cpp
index cc44052..56cba1c 100644
--- a/src/DSi_Camera.cpp
+++ b/src/DSi_Camera.cpp
@@ -140,7 +140,7 @@ u16 DSi_Camera::ReadReg(u16 addr)
     case 0x301A: return ((~StandbyCnt) & 0x4000) >> 12;
     }
 
-    printf("DSi_Camera%d: unknown read %04X\n", Num, addr);
+    //printf("DSi_Camera%d: unknown read %04X\n", Num, addr);
     return 0;
 }
 
@@ -162,5 +162,5 @@ void DSi_Camera::WriteReg(u16 addr, u16 val)
         return;
     }
 
-    printf("DSi_Camera%d: unknown write %04X %04X\n", Num, addr, val);
+    //printf("DSi_Camera%d: unknown write %04X %04X\n", Num, addr, val);
 }
-- 
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