moved SPI handling to new files

buildscript.sh

@@ -0,0 +1,2 @@
+cmake -B build
+cmake --build build -j$(nproc --all)

src/CMakeLists.txt

@@ -64,8 +64,10 @@ add_library(core STATIC
 
     sha1/sha1.c
     tiny-AES-c/aes.c
-    xxhash/xxhash.c)
+    xxhash/xxhash.c
 
+    H8300.cpp
+    H8300.h)
 if (ENABLE_GDBSTUB)
     message(NOTICE "Enabling GDB stub")
     target_sources(core PRIVATE
@@ -100,7 +102,7 @@ if (ENABLE_JIT)
         ARMJIT_Global.cpp
 
         dolphin/CommonFuncs.cpp)
-    
+
     if (WIN32)
         # Required for memory mapping-related functions introduced in Windows 8
         target_compile_definitions(core PRIVATE -D_WIN32_WINNT=_WIN32_WINNT_WIN8)
@@ -211,4 +213,3 @@ endif()
 #    BEFORE PUBLIC -fsanitize=undefined PUBLIC -fsanitize=address
 #  )
 #endif()
-

src/H8300.cpp

@@ -1 +1,53 @@
-//test
+/*
+	This file is copyright Barret Klics and maybe melonDS team I guess?
+   */
+
+
+#include "H8300.h"
+#include <string.h>
+#include "types.h"
+H8300::H8300(){
+	printf("H8/300 has been created");
+}
+
+H8300::~H8300(){
+
+	printf("H8/300 has been killed");
+
+}
+
+void H8300::speak(){
+	printf("H8 CHIP IS SPEAKING");
+}
+
+
+//A botched implementation
+u8 H8300::handleSPI(u8& IRCmd, u8& val, u32&pos, bool& last){
+
+    printf("IRCmd: %d		val:%d   pos: %ld   last: %d\n", IRCmd, val, pos, last);
+    switch (IRCmd)
+    {
+    case 0x00: // pass-through
+	printf("CRITICAL ERROR IN H8300 emu, should not have recieved 0x00 command!");
+        return 0xFF;
+
+
+    case 0x01:
+	u8 rtnval;
+	if (pos == 1){
+		rtnval = 0x01;
+	}
+	if (pos == 2){
+		rtnval = 0x56;
+	}
+	printf("	returning: 0x%02x   val: %d   pos: %ld   last: %d\n", rtnval, val, pos, last);
+	return rtnval;
+
+
+    case 0x08: // ID
+        return 0xAA;
+    }
+
+    printf("Unhandled: %d		val:%d   pos: %ld   last: %d\n", IRCmd, val, pos, last);
+    return 0x00;
+}

src/H8300.h

@@ -1,2 +1,31 @@
 //test
 
+#ifndef H8300_H
+#define H8300_H
+
+
+
+#include <array>
+#include <string>
+#include <memory>
+#include <variant>
+
+#include "types.h"
+
+
+using namespace melonDS;
+class H8300 {
+public:
+	H8300();
+	~H8300();
+
+	void speak();
+	u8 handleSPI(u8& IRCmd, u8& val, u32&pos, bool& last);
+
+
+private:
+	int exampleInt;
+};
+
+#endif
+

src/NDSCart.cpp

@@ -26,6 +26,7 @@
 #include "melonDLDI.h"
 #include "FATStorage.h"
 #include "Utils.h"
+#include "H8300.h"
 
 namespace melonDS
 {
@@ -907,7 +908,7 @@ int CartRetailNAND::ROMCommandStart(NDS& nds, NDSCart::NDSCartSlot& cartslot, co
 
     switch (cmd[0])
     {
-    case 0x81: // write data
+    case 0x81: // write data where H8300 is fully defined in the source file (e.g., .cpp or .h):
         if ((SRAMStatus & (1<<4)) && SRAMWindow >= SRAMBase && SRAMWindow < (SRAMBase+SRAMLength))
         {
             u32 addr = (cmd[1]<<24) | (cmd[2]<<16) | (cmd[3]<<8) | cmd[4];
@@ -1090,7 +1091,6 @@ CartRetailIR::CartRetailIR(const u8* rom, u32 len, u32 chipid, u32 irversion, bo
     CartRetailIR(CopyToUnique(rom, len), len, chipid, irversion, badDSiDump, romparams, std::move(sram), sramlen, userdata)
 {
 }
-
 CartRetailIR::CartRetailIR(
     std::unique_ptr<u8[]>&& rom,
     u32 len,
@@ -1103,7 +1103,8 @@ CartRetailIR::CartRetailIR(
     void* userdata
 ) :
     CartRetail(std::move(rom), len, chipid, badDSiDump, romparams, std::move(sram), sramlen, userdata, CartType::RetailIR),
-    IRVersion(irversion)
+    IRVersion(irversion),
+    IRChip()
 {
 }
 
@@ -1122,29 +1123,56 @@ void CartRetailIR::DoSavestate(Savestate* file)
 
     file->Var8(&IRCmd);
 }
-
+//BARRET BEGIN CHANGES
 u8 CartRetailIR::SPIWrite(u8 val, u32 pos, bool last)
 {
+	//Kind of like an init sequence, we only really care about commands after this first one
     if (pos == 0)
     {
+//	printf("IRCmd: %d		val:%d   pos: %ld   last: %d\n", val, val, pos, last);
         IRCmd = val;
         return 0;
     }
 
     // TODO: emulate actual IR comm
+    if (IRCmd == 0){
+	return CartRetail::SPIWrite(val, pos-1, last);
 
+    }
+
+    else{
+	return IRChip.handleSPI(IRCmd, val, pos, last);
+
+    }
+
+
+    /*
     switch (IRCmd)
     {
     case 0x00: // pass-through
         return CartRetail::SPIWrite(val, pos-1, last);
 
+
+    case 0xaa:
+	u8 rtnval;
+	if (pos == 1){
+		rtnval = 0x01;
+	}
+	if (pos == 2){
+		rtnval = 0x56;
+	}
+	printf("	returning: 0x%02x   val: %d   pos: %ld   last: %d\n", rtnval, val, pos, last);
+	return rtnval;
+
+
     case 0x08: // ID
         return 0xAA;
     }
-
-    return 0;
+    return IRChip.handleSPI(val, pos,last);
+    //printf("	Unhandled Case:   val: 0x%02x\n", val);
+    //return 0;*/
 }
-
+//BARRET END CHANGES
 CartRetailBT::CartRetailBT(const u8* rom, u32 len, u32 chipid, ROMListEntry romparams, std::unique_ptr<u8[]>&& sram, u32 sramlen, void* userdata) :
     CartRetailBT(CopyToUnique(rom, len), len, chipid, romparams, std::move(sram), sramlen, userdata)
 {
@@ -2045,4 +2073,4 @@ void NDSCartSlot::WriteSPIData(u8 val) noexcept
 
 }
 
-}
+}

src/NDSCart.h

@@ -29,7 +29,7 @@
 #include "NDS_Header.h"
 #include "FATStorage.h"
 #include "ROMList.h"
-
+#include "H8300.h"
 namespace melonDS
 {
 class NDS;
@@ -233,6 +233,7 @@ public:
 private:
     u32 IRVersion = 0;
     u8 IRCmd = 0;
+    H8300 IRChip;
 };
 
 // CartRetailBT - Pok<6F>mon Typing Adventure (SPI BT controller)
@@ -470,3 +471,4 @@ std::unique_ptr<CartCommon> ParseROM(std::unique_ptr<u8[]>&& romdata, u32 romlen
 }
 
 #endif
+