From f4c8202b1a4a094680e9e84329bef88c2fc65885 Mon Sep 17 00:00:00 2001
From: Arisotura <thetotalworm@gmail.com>
Date: Wed, 17 Jan 2024 18:50:08 +0100
Subject: add missing 8/16-bit reads to ROMCnt and ROM SPICnt

---
 src/NDS.cpp | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/src/NDS.cpp b/src/NDS.cpp
index f67cb84..de21eb6 100644
--- a/src/NDS.cpp
+++ b/src/NDS.cpp
@@ -2728,11 +2728,37 @@ u8 NDS::ARM9IORead8(u32 addr)
     case 0x04000132: return KeyCnt[0] & 0xFF;
     case 0x04000133: return KeyCnt[0] >> 8;
 
+    case 0x040001A0:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return NDSCartSlot.GetSPICnt() & 0xFF;
+        return 0;
+    case 0x040001A1:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return NDSCartSlot.GetSPICnt() >> 8;
+        return 0;
+
     case 0x040001A2:
         if (!(ExMemCnt[0] & (1<<11)))
             return NDSCartSlot.ReadSPIData();
         return 0;
 
+    case 0x040001A4:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return NDSCartSlot.GetROMCnt() & 0xFF;
+        return 0;
+    case 0x040001A5:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return (NDSCartSlot.GetROMCnt() >> 8) & 0xFF;
+        return 0;
+    case 0x040001A6:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return (NDSCartSlot.GetROMCnt() >> 16) & 0xFF;
+        return 0;
+    case 0x040001A7:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return NDSCartSlot.GetROMCnt() >> 24;
+        return 0;
+
     case 0x040001A8:
         if (!(ExMemCnt[0] & (1<<11)))
             return NDSCartSlot.GetROMCommand(0);
@@ -2884,6 +2910,15 @@ u16 NDS::ARM9IORead16(u32 addr)
             return NDSCartSlot.ReadSPIData();
         return 0;
 
+    case 0x040001A4:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return NDSCartSlot.GetROMCnt() & 0xFFFF;
+        return 0;
+    case 0x040001A6:
+        if (!(ExMemCnt[0] & (1<<11)))
+            return NDSCartSlot.GetROMCnt() >> 16;
+        return 0;
+
     case 0x040001A8:
         if (!(ExMemCnt[0] & (1<<11)))
             return NDSCartSlot.GetROMCommand(0) |
@@ -3592,11 +3627,37 @@ u8 NDS::ARM7IORead8(u32 addr)
 
     case 0x04000138: return RTC.Read() & 0xFF;
 
+    case 0x040001A0:
+        if (ExMemCnt[0] & (1<<11))
+            return NDSCartSlot.GetSPICnt() & 0xFF;
+        return 0;
+    case 0x040001A1:
+        if (ExMemCnt[0] & (1<<11))
+            return NDSCartSlot.GetSPICnt() >> 8;
+        return 0;
+
     case 0x040001A2:
         if (ExMemCnt[0] & (1<<11))
             return NDSCartSlot.ReadSPIData();
         return 0;
 
+    case 0x040001A4:
+        if (ExMemCnt[0] & (1<<11))
+            return NDSCartSlot.GetROMCnt() & 0xFF;
+        return 0;
+    case 0x040001A5:
+        if (ExMemCnt[0] & (1<<11))
+            return (NDSCartSlot.GetROMCnt() >> 8) & 0xFF;
+        return 0;
+    case 0x040001A6:
+        if (ExMemCnt[0] & (1<<11))
+            return (NDSCartSlot.GetROMCnt() >> 16) & 0xFF;
+        return 0;
+    case 0x040001A7:
+        if (ExMemCnt[0] & (1<<11))
+            return NDSCartSlot.GetROMCnt() >> 24;
+        return 0;
+
     case 0x040001A8:
         if (ExMemCnt[0] & (1<<11))
             return NDSCartSlot.GetROMCommand(0);
@@ -3697,6 +3758,15 @@ u16 NDS::ARM7IORead16(u32 addr)
     case 0x040001A0: if (ExMemCnt[0] & (1<<11)) return NDSCartSlot.GetSPICnt();   return 0;
     case 0x040001A2: if (ExMemCnt[0] & (1<<11)) return NDSCartSlot.ReadSPIData(); return 0;
 
+    case 0x040001A4:
+        if (ExMemCnt[0] & (1<<11))
+            return NDSCartSlot.GetROMCnt() & 0xFFFF;
+        return 0;
+    case 0x040001A6:
+        if (ExMemCnt[0] & (1<<11))
+            return NDSCartSlot.GetROMCnt() >> 16;
+        return 0;
+
     case 0x040001A8:
         if (ExMemCnt[0] & (1<<11))
             return NDSCartSlot.GetROMCommand(0) |
-- 
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