diff --git a/src/DMA.cpp b/src/DMA.cpp
index 6a3b4137..4cf60419 100644
--- a/src/DMA.cpp
+++ b/src/DMA.cpp
@@ -297,6 +297,7 @@ u32 DMA::UnitTimings9_16(bool burststart)
         }
         else
         {
+            // TODO: not quite right for GBA slot
             return (((CurSrcAddr & 0x1F) == 0x1E) ? 7 : 8) +
                    (burststart ? dst_n : dst_s);
         }
@@ -384,7 +385,8 @@ u32 DMA::UnitTimings9_32(bool burststart)
         }
         else
         {
-            return (((CurSrcAddr & 0x1F) == 0x1C) ? 8 : 9) +
+            // TODO: not quite right for GBA slot
+            return (((CurSrcAddr & 0x1F) == 0x1C) ? (dst_n==2 ? 7:8) : 9) +
                    (burststart ? dst_n : dst_s);
         }
     }
diff --git a/src/DSi.cpp b/src/DSi.cpp
index 0070c41f..53846539 100644
--- a/src/DSi.cpp
+++ b/src/DSi.cpp
@@ -739,7 +739,7 @@ void Set_SCFG_Clock9(u16 val)
 
     NDS::ARM9Timestamp <<= NDS::ARM9ClockShift;
     NDS::ARM9Target    <<= NDS::ARM9ClockShift;
-    NDS::ARM9->UpdateRegionTimings(0x00000000, 0xFFFFFFFF);
+    NDS::ARM9->UpdateRegionTimings(0x00000, 0x100000);
 }
 
 void Set_SCFG_MC(u32 val)
diff --git a/src/NDS.cpp b/src/NDS.cpp
index f3943ea9..c43caeab 100644
--- a/src/NDS.cpp
+++ b/src/NDS.cpp
@@ -2011,7 +2011,7 @@ u16 ARM9Read16(u32 addr)
               (GBACart::SRAMRead(addr+1) << 8);
     }
 
-    if (addr) printf("unknown arm9 read16 %08X %08X\n", addr, ARM9->R[15]);
+    //if (addr) printf("unknown arm9 read16 %08X %08X\n", addr, ARM9->R[15]);
     return 0;
 }
 
@@ -2072,7 +2072,7 @@ u32 ARM9Read32(u32 addr)
               (GBACart::SRAMRead(addr+3) << 24);
     }
 
-    printf("unknown arm9 read32 %08X | %08X %08X\n", addr, ARM9->R[15], ARM9->R[12]);
+    //printf("unknown arm9 read32 %08X | %08X %08X\n", addr, ARM9->R[15], ARM9->R[12]);
     return 0;
 }