rickjr: makefile changes "make overlay" command has been added and works, but this is definitely messy right now

.gitignore

@@ -2,3 +2,14 @@
 *.vpw
 *.vpwhistxml
 *.vtg
+dep/
+lst/
+obj/
+bin/blockgen/.vs/
+*.user
+bin/blockgen/vcxproj/.vs/
+bin/blockgen/vcxproj/x64/
+*.pdb
+bin/overlayhelper/.vs/
+bin/overlayhelper/vcxproj/.vs/
+bin/overlayhelper/vcxproj/x64/

Makefile

@@ -29,7 +29,8 @@ F256         = $(HOME)/code/f256
 #SYSLIBDIR   = $(SYSTEM)/lib
 #SYSINCDIR   = $(SYSTEM)/include
 
-TMPFLAGS	= -D F256=1 -Wno-unknown-pragmas
+#TMPFLAGS	= -D F256=1 -include src/mapper.h -include blocks.h -Wno-unknown-pragmas
+TMPFLAGS	= -D F256=1 -include src/mapper.h -Wno-unknown-pragmas
 
 
 INCCMD		=	-I$(SYSINCDIR)
@@ -40,7 +41,6 @@ INCCMD          +=      -I$(F256)/f256lib
 
 OBJDIR		= $(PROJROOT)/obj
 DEPDIR		= $(PROJROOT)/dep
-LSTDIR		= $(PROJROOT)/lst
 
 #
 #  Special GnuMake Search Path Directive
@@ -95,7 +95,13 @@ OBJS		+= syssnd.o
 OBJS		+= system.o
 OBJS		+= sysvid.o
 OBJS		+= util.o
-OBJS		+= f256.o
+#OBJS		+= f256.o
+OBJS            += dat_spritesJR.o
+
+LIBS := $(OBJDIR)/f256.o
+
+# Data Objects
+#OBJS            += splash.o
 
 
 # change list of .o's into a list of .d's
@@ -105,12 +111,14 @@ DEPS	   := $(OBJS:%.o=%.d)
 AS          = merlin32
 CC          = mos-f256k-clang
 LD          = mos-f256k-clang
+OBJCOPY     = llvm-objcopy
 RM          = /bin/rm -rfv
 
 CFLAGS      = -Os -Wall -Werror -Wa,-al -fno-common
 CXXFLAGS    = -Os -Wall -Werror -Wa,-al -fno-common
 #ASFLAGS     = -c -xassembler-with-cpp -Wa,-al
 #LDFLAGS     = -Wl,-Map,$(TARGET).map $(LIBCMD)
+LDFLAGS     = -Trickjr.ld --verbose
 
 # Clear Default Suffixes
 .SUFFIXES:
@@ -119,20 +127,23 @@ CXXFLAGS    = -Os -Wall -Werror -Wa,-al -fno-common
 
 all: $(TARGET)
 
-$(TARGET): $(DEPS) $(OBJS) $(LIBS)
+#$(TARGET): $(DEPS) $(OBJS) $(LIBS)
-	${CC} $(CFLAGS) $(TMPFLAGS) $(INCCMD) -c ${F256}/f256lib/f256.c -o $(OBJDIR)/f256.o > $(LSTDIR)/$*.lst
+$(TARGET): $(DEPS) $(OBJS) overlay
+	${CC} $(CFLAGS) $(TMPFLAGS) $(INCCMD) -c ${F256}/f256lib/f256.c -o $(OBJDIR)/f256.o
 	$(LD) -o $@ $(addprefix $(OBJDIR)/,$(OBJS)) $(LIBS) $(LDFLAGS)
+	llvm-objdump --syms -d --print-imm-hex $(TARGET).elf > $(TARGET).lst
 
 # Object Rules
 
 .s.o:
-	$(AS) $(ASFLAGS) $(TMPFLAGS) $(INCCMD) -o $(OBJDIR)/$@ $< > $(LSTDIR)/$*.lst
+	$(AS) $(ASFLAGS) $(TMPFLAGS) $(INCCMD) -o $(OBJDIR)/$@ $<
 
 .c.o:
-	$(CC) $(CFLAGS) $(TMPFLAGS) $(INCCMD) -c $< -o $(OBJDIR)/$*.o > $(LSTDIR)/$*.lst
+	$(CC) $(CFLAGS) $(TMPFLAGS) $(INCCMD) -c $< -o $(OBJDIR)/$*.o
 
 .cc.o:
-	$(CC) $(CXXFLAGS) $(TMPFLAGS) $(INCCMD) -c $< -o $(OBJDIR)/$*.o > $(LSTDIR)/$*.lst
+	$(CC) $(CXXFLAGS) $(TMPFLAGS) $(INCCMD) -c $< -o $(OBJDIR)/$*.o
+
 
 # Dependencie Rules
 #
@@ -157,7 +168,20 @@ $(TARGET): $(DEPS) $(OBJS) $(LIBS)
 
 .PHONY: clean
 clean:
-	$(RM) $(OBJDIR) *.o $(DEPDIR) *.map $(LSTDIR) $(TARGET) $(TARGET).elf $(TARGET).pgz
+	$(RM) $(OBJDIR) *.o $(DEPDIR) *.map $(TARGET) $(TARGET).elf $(TARGET).pgz $(TARGET).lst
+
+# needed for the overlay input
+HELPER = $(HOME)/code/rickjr/bin/oh
+CFILES = $(patsubst %.o,src/%.c,$(OBJS))
+
+
+.PHONY: overlay
+
+overlay_reset:
+	@echo '/* Overlay Helper Generated Linker Script */' > overlay.ld
+
+overlay: overlay_reset $(CFILES)
+	$(foreach cfile,$(CFILES),$(shell $(HELPER) $(cfile) >> $(HOME)/code/rickjr/overlay.ld))
 
 
 ########################################
@@ -176,7 +200,7 @@ $(DEPS) : Makefile
 # Targets that create the output object directory if it doesn't already exist
 #
 
-Makefile : $(OBJDIR) $(DEPDIR) $(LSTDIR)
+Makefile : $(OBJDIR) $(DEPDIR)
 
 $(OBJDIR) :
 	$(MKDIR) $(OBJDIR)
@@ -188,16 +212,8 @@ $(OBJDIR) :
 $(DEPDIR) :
 	$(MKDIR) $(DEPDIR)
 
-#
-# Targets that create the output list directory if it doesn't already exist
-#
-  
-$(LSTDIR) :
-	$(MKDIR) $(LSTDIR)
-
 #
 # Generated Dependencie Files
 #
 -include $(wildcard $(DEPDIR)/*.d)
 
-

bin/blockgen/source/bctypes.h

@@ -0,0 +1,48 @@
+/*
+	bctypes.h
+
+	Because I need Standard Types
+*/
+
+#ifndef _bctypes_h
+#define _bctypes_h
+
+typedef	signed char			i8;
+typedef unsigned char		u8;
+typedef signed short		i16;
+typedef unsigned short		u16;
+typedef signed long			i32;
+typedef unsigned long		u32;
+
+typedef signed long long	i64;
+typedef unsigned long long	u64;
+
+// If we're using C, I still like having a bool around
+#ifndef __cplusplus
+typedef	i32					bool;
+#define false (0)
+#define true (!false)
+#define nullptr 0
+#endif
+
+typedef float				f32;
+typedef float				r32;
+typedef double				f64;
+typedef double				r64;
+
+
+#define null (0)
+
+// Odd Types
+typedef union {
+//  u128       ul128;
+  u64        ul64[2];
+  u32        ui32[4];
+} QWdata;
+
+
+#endif // _bctypes_h
+
+// EOF - bctypes.h
+
+

bin/blockgen/source/blockgen.cpp

@@ -0,0 +1,68 @@
+// omf2hex.cpp : This file contains the 'main' function. Program execution begins and ends there.
+//
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "symfile.h"
+
+//------------------------------------------------------------------------------
+void helpText()
+{
+	printf("blockgen - v1.0\n");
+	printf("--------------\n");
+	printf("Convert mos-llvm elf file symboles into a C header file\n");
+	printf("\nblock [options] <file.elf>\n");
+	printf("  -v  verbose\n\n");
+
+	exit(-1);
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+	char* pInfilePath  = nullptr;
+	bool bVerbose = false;
+
+	for (int idx = 1; idx < argc; ++idx )
+	{
+		char* arg = argv[ idx ];
+
+		if ('-' == arg[0])
+		{
+			// Parse as an option
+			if ('v'==arg[1])
+			{
+				bVerbose = true;
+			}
+		}
+		else if (nullptr == pInfilePath)
+		{
+			// Assume the first non-option is an input file path
+			pInfilePath = argv[ idx ];
+		}
+		else
+		{
+			// Oh Crap, we have a non-option, but we don't know what to do with
+			// it
+			printf("ERROR: Invalid option, Arg %d = %s\n\n", idx, argv[ idx ]);
+			helpText();
+		}
+	}
+
+	if (pInfilePath)
+	{
+		// Load the .sym File
+		SYMFile *pSymFile = new SYMFile(std::string(pInfilePath));
+		delete pSymFile;
+	}
+	else
+	{
+		helpText();
+	}
+
+
+	return 0;
+}
+

bin/blockgen/source/memstream.h

@@ -0,0 +1,164 @@
+//
+// Jason's Memory Stream Helper thing
+// Serialize a byte stream into real types
+// 
+// Currently only support Little Endian
+//
+
+#ifndef MEMSTREAM_H_
+#define MEMSTREAM_H_
+
+
+#include <string>
+
+// Prototypes
+void *memcpy(void *dest, const void *src, size_t n);
+
+class MemoryStream
+{
+public:
+	MemoryStream(unsigned char* pStreamStart, size_t streamSize)
+		: m_pStreamStart( pStreamStart )
+		, m_streamSize(streamSize)
+		, m_pStreamCurrent( pStreamStart )
+	{}
+
+	~MemoryStream()
+	{
+		m_pStreamStart = nullptr;
+		m_streamSize = 0;
+		m_pStreamCurrent = nullptr;
+	}
+
+	// Really Dumb Reader Template
+	template <class T>
+	T Read()
+	{
+		T result;
+	
+		memcpy(&result, m_pStreamCurrent, sizeof(T));
+		m_pStreamCurrent += sizeof(T);
+	
+		return result;
+	}
+
+	template <class T>
+	void Read(T& result)
+	{
+		memcpy(&result, m_pStreamCurrent, sizeof(result));
+		m_pStreamCurrent += sizeof(result);
+	}
+
+	void ReadBytes(u8* pDest, size_t numBytes)
+	{
+		memcpy(pDest, m_pStreamCurrent, numBytes);
+		m_pStreamCurrent += numBytes;
+	}
+
+	std::string ReadPString()
+	{
+		std::string result;
+
+		u8 length = *m_pStreamCurrent++;
+
+		result.insert(0, (char*)m_pStreamCurrent, (size_t)length);
+
+		m_pStreamCurrent += length;
+
+		return result;
+	}
+
+	std::string ReadLine()
+	{
+		unsigned char* pStreamEnd = m_pStreamStart + m_streamSize;
+
+		std::string result;
+
+		u8 *pEndOfLine = m_pStreamCurrent;
+
+		while (pEndOfLine < pStreamEnd)
+		{
+			if ((0x0a != *pEndOfLine) && (0x0d != *pEndOfLine))
+			{
+				pEndOfLine++;
+			}
+			else
+			{
+				break;
+			}
+		}
+
+		size_t length = pEndOfLine - m_pStreamCurrent;
+
+		if (length)
+		{
+			// Capture the line
+			result.insert(0, (char*)m_pStreamCurrent, (size_t)length);
+			m_pStreamCurrent += length;
+		}
+
+		// Figure out if that loop broke out because we hit the end of the file
+		while (pEndOfLine < pStreamEnd)
+		{
+			if ((0x0a == *pEndOfLine) || (0x0d == *pEndOfLine))
+			{
+				pEndOfLine++;
+			}
+			else
+			{
+				break;
+			}
+		}
+
+		m_pStreamCurrent = pEndOfLine;
+		if (m_pStreamCurrent > pStreamEnd)
+		{
+			m_pStreamCurrent = pStreamEnd;
+		}
+		return result;
+
+	}
+
+	size_t SeekCurrent(int delta)
+	{
+		m_pStreamCurrent += delta;
+		return m_pStreamCurrent - m_pStreamStart;
+	}
+
+	size_t SeekSet(size_t offset)
+	{
+		m_pStreamCurrent = m_pStreamStart + offset;
+		return m_pStreamCurrent - m_pStreamStart;
+	}
+
+	unsigned char* GetPointer() { return m_pStreamCurrent; }
+
+	size_t NumBytesAvailable() {
+
+		unsigned char* pStreamEnd = m_pStreamStart + m_streamSize;
+
+		if (pStreamEnd - m_pStreamCurrent >= 0)
+		{
+			return pStreamEnd - m_pStreamCurrent;
+		}
+		else
+		{
+			return 0;
+		}
+	}
+
+
+
+private:
+
+	unsigned char* m_pStreamStart;
+	size_t m_streamSize;
+
+	unsigned char* m_pStreamCurrent;
+	
+};
+
+
+#endif // MEMSTREAM_H_
+
+

bin/blockgen/source/symfile.cpp

@@ -0,0 +1,231 @@
+//
+// symfile.cpp
+//
+#include "symfile.h"
+#include <stdio.h>
+
+//------------------------------------------------------------------------------
+// Static Helpers
+
+static bool contains(char x, const char* pSeparators)
+{
+	while (*pSeparators)
+	{
+		if (x == *pSeparators)
+		{
+			return true;
+		}
+		pSeparators++;
+	}
+
+	return false;
+}
+
+static std::vector<std::string> split(const std::string& s, const char* separators)
+{
+	std::vector<std::string> output;
+	std::string::size_type prev_pos = 0, pos = 0;
+
+	for (int index = 0; index < s.length(); ++index)
+	{
+		pos = index;
+
+		// if the index is a separator
+		if (contains(s[index], separators))
+		{
+			// if we've skipped a token, collect it
+			if (prev_pos != index)
+			{
+				output.push_back(s.substr(prev_pos, index-prev_pos));
+
+				// skip white space here
+				while (index < s.length())
+				{
+					if (contains(s[index], separators))
+					{
+						++index;
+					}
+					else
+					{
+						prev_pos = index;
+						pos = index;
+						break;
+					}
+				}
+			}
+			else
+			{
+				prev_pos++;
+			}
+		}
+	}
+
+    output.push_back(s.substr(prev_pos, pos-prev_pos+1)); // Last word
+
+    return output;
+}
+
+// make this string lowercase
+static void tolower(std::string& s)
+{
+	for (int index = 0; index < s.length(); ++index)
+	{
+		s[index] = tolower( s[index] );
+	}
+}
+
+//------------------------------------------------------------------------------
+SYMFile::SYMFile( std::string filepath )
+	: m_filepath( filepath )
+{
+	FILE* pFile = nullptr;
+	errno_t err = fopen_s(&pFile, filepath.c_str(), "rb");
+
+	if (0==err)
+	{
+		fseek(pFile, 0, SEEK_END);
+		size_t length = ftell(pFile);
+		fseek(pFile, 0, SEEK_SET);
+
+		printf("\n// SYMFile %s - %lld bytes\n", filepath.c_str(), length);
+
+		printf("// Reading %s\n", filepath.c_str());
+
+		printf("//\n");
+		printf("// This file generated by blockgen.exe\n");
+		printf("//\n");
+		printf("//\n");
+
+		u8* pData = new u8[ length ];
+
+		fread(pData, sizeof(u8), length / sizeof(u8), pFile);
+
+		// Now we have a buffer, with the whole SYM File
+		// Read in the Sections
+		{
+			MemoryStream memStream(pData, length);
+
+			while (memStream.NumBytesAvailable())
+			{
+				std::string lineData = memStream.ReadLine();
+
+				// symbols are case sensitive
+
+				// we care about the first 32 bit value in hex, and the last value on the line, the symbol
+				std::vector<std::string> tokens = split(lineData, " \t");
+
+				if (tokens.size() >= 3)
+				{
+					if (IsHexAddress(tokens[0]))
+					{
+						// We're only interested in lines that start with a hex address
+
+						std::string sym_name = tokens[ tokens.size() - 1 ];
+
+						u32 address = strtoul(tokens[0].c_str(), nullptr, 16);
+
+						//printf("address = %08x\n", address);
+
+						if (0 != (address >> 24))
+						{
+							printf("#define %s_BLOCK %d\n", sym_name.c_str(), address>>24);
+						}
+						else if (0 != (address & 0xFF0000))
+						{
+							printf("#define %s_high %d\n", sym_name.c_str(), (address>>16) & 0xFF);
+							printf("#define %s_BLOCK %d\n", sym_name.c_str(), ((address&0xFFFFFF) / 0x2000));
+						}
+
+					}
+				}
+			}
+		}
+
+		delete[] pData;
+
+		fclose(pFile);
+
+		printf("\n// Read Completed\n");
+	}
+	else
+	{
+		printf("// SYMFile could not open %s\n", filepath.c_str());
+		printf("//\n");
+		printf("Feed in a symbol dump file, and I will print out a header file\n");
+		printf("Capture my output with a pipe.\n");
+		printf("\nGenerate a .sym file like this:\n");
+		printf("\nllvm-objdump --syms <program>.elf > program.sym\n");
+	}
+}
+
+//------------------------------------------------------------------------------
+
+SYMFile::~SYMFile()
+{
+}
+
+//------------------------------------------------------------------------------
+
+u32 SYMFile::GetAddress(std::string symbolName)
+{
+	u32 result_address = 0;
+	// If the address is in there, return it
+	// First remove trailing spaces from the sectionName
+
+	const size_t strEnd = symbolName.find_last_not_of(" ");
+
+	if (strEnd != std::string::npos)
+	{
+		if ((strEnd+1) != symbolName.length())
+		{
+			symbolName.resize(strEnd+1);
+		}
+	}
+
+	// Make sure not case sensitive
+	tolower(symbolName);
+
+	for (int labelIndex = 0; labelIndex < m_symbols.size(); ++labelIndex)
+	{
+		if (symbolName == m_symbols[labelIndex])
+		{
+			result_address = m_addresses[labelIndex];
+			break;
+		}
+	}
+
+	return result_address;
+}
+
+//------------------------------------------------------------------------------
+
+bool SYMFile::IsHexAddress(const std::string& address)
+{
+	if (8 == address.size())
+	{
+		for (int idx = 0; idx < 8; ++idx)
+		{
+			if ((address[idx] >= '0')&&(address[idx] <= '9'))
+			{
+				continue;  // this is good
+			}
+			else if ((address[idx] >= 'a')&&(address[idx] <= 'f'))
+			{
+				continue;  // this is good
+			}
+			else if ((address[idx] >= 'A')&&(address[idx] <= 'F'))
+			{
+				continue; // this is good
+			}
+			else
+			{
+				return false;
+			}
+		}
+
+		return true;
+	}
+	return false;
+}
+
+//------------------------------------------------------------------------------

bin/blockgen/source/symfile.h

@@ -0,0 +1,34 @@
+//
+// SYMFile Class
+//
+
+#ifndef SYMFILE_H_
+#define SYMFILE_H_
+
+#include <string>
+#include <vector>
+
+#include "bctypes.h"
+#include "memstream.h"
+
+//------------------------------------------------------------------------------
+
+class SYMFile
+{
+public:
+	SYMFile( std::string filepath );
+	~SYMFile();
+
+	u32 GetAddress(std::string symbolName);
+	bool IsHexAddress(const std::string& address);
+
+private:
+	std::string m_filepath;
+
+	std::vector<std::string> m_symbols;
+	std::vector<u32> m_addresses;
+};
+
+#endif // SYMFILE_H_
+
+

bin/blockgen/vcxproj/blockgen.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34309.116
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "blockgen", "blockgen.vcxproj", "{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Debug|x64.ActiveCfg = Debug|x64
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Debug|x64.Build.0 = Debug|x64
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Debug|x86.ActiveCfg = Debug|Win32
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Debug|x86.Build.0 = Debug|Win32
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Release|x64.ActiveCfg = Release|x64
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Release|x64.Build.0 = Release|x64
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Release|x86.ActiveCfg = Release|Win32
+		{3E291D4B-EB9C-439B-8090-A0F1D0BD21EB}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {43F6DB44-6241-4F87-B55D-35450E50405E}
+	EndGlobalSection
+EndGlobal

bin/blockgen/vcxproj/blockgen.vcxproj

@@ -0,0 +1,141 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{3e291d4b-eb9c-439b-8090-a0f1d0bd21eb}</ProjectGuid>
+    <RootNamespace>blockgen</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\source\blockgen.cpp" />
+    <ClCompile Include="..\source\symfile.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\source\bctypes.h" />
+    <ClInclude Include="..\source\memstream.h" />
+    <ClInclude Include="..\source\symfile.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

bin/blockgen/vcxproj/blockgen.vcxproj.filters

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\source\blockgen.cpp" />
+    <ClCompile Include="..\source\symfile.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\source\bctypes.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\source\memstream.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\source\symfile.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>

bin/overlayhelper/Makefile

@@ -0,0 +1,49 @@
+#
+# overlayhelper/Makefile
+#
+
+# Make and Build Variables
+
+VPATH = source:obj
+SOURCEFILES = $(wildcard source/*.cpp)
+OBJFILES = $(patsubst source/%.cpp,obj/%.o,$(SOURCEFILES))
+CC = clang++
+INCCMD = -Isource
+# List of directories to create
+DIRS=obj
+
+CFLAGS      = -std=c++17 -Os -Wall -Werror
+#CFLAGS      = -Os -Wall -Werror -S
+
+
+help:
+	@echo   
+	@echo overlayhelper Makefile
+	@echo -------------------------------------------------
+	@echo build commands:
+	@echo    make install - Compile / Install
+	@echo    make clean   - Clean intermediate/target files
+	@echo -------------------------------------------------
+	@echo  
+
+overlayhelper: $(OBJFILES)
+
+install: overlayhelper
+	$(CC) -o ../oh $(OBJFILES)
+#	$(CC) -o ../overlayhelper $(OBJFILES) -Wl,-Map,overlayhelper.map
+
+clean:
+	@echo Remove overlayhelper
+	$(shell if exist overlayhelper echo Y | rm overlayhelper)
+	@echo Remove Intermediate Files
+	@rm obj\*
+
+
+# Goofy Object File Rule
+obj/%.o : source/%.cpp
+	@echo Compiling $(<F)
+	$(CC) $(CFLAGS) $(INCCMD) -c $< -o obj/$*.o
+
+
+# Create all the directories
+$(shell if not exist $(DIRS) mkdir $(DIRS))

bin/overlayhelper/source/bctypes.h

@@ -0,0 +1,48 @@
+/*
+	bctypes.h
+
+	Because I need Standard Types
+*/
+
+#ifndef _bctypes_h
+#define _bctypes_h
+
+typedef	signed char			i8;
+typedef unsigned char		u8;
+typedef signed short		i16;
+typedef unsigned short		u16;
+typedef signed long			i32;
+typedef unsigned long		u32;
+
+typedef signed long long	i64;
+typedef unsigned long long	u64;
+
+// If we're using C, I still like having a bool around
+#ifndef __cplusplus
+typedef	i32					bool;
+#define false (0)
+#define true (!false)
+#define nullptr 0
+#endif
+
+typedef float				f32;
+typedef float				r32;
+typedef double				f64;
+typedef double				r64;
+
+
+#define null (0)
+
+// Odd Types
+typedef union {
+//  u128       ul128;
+  u64        ul64[2];
+  u32        ui32[4];
+} QWdata;
+
+
+#endif // _bctypes_h
+
+// EOF - bctypes.h
+
+

bin/overlayhelper/source/cfile.cpp

@@ -0,0 +1,220 @@
+//
+// cfile.cpp
+//
+#include "cfile.h"
+
+#ifdef __STDC_LIB_EXT1__
+#define __STDC_WANT_LIB_EXT1__ 1
+#endif
+
+#include <stdio.h>
+
+//------------------------------------------------------------------------------
+// Static Helpers
+
+static bool contains(char x, const char* pSeparators)
+{
+	while (*pSeparators)
+	{
+		if (x == *pSeparators)
+		{
+			return true;
+		}
+		pSeparators++;
+	}
+
+	return false;
+}
+
+static std::vector<std::string> split(const std::string& s, const char* separators)
+{
+	std::vector<std::string> output;
+	std::string::size_type prev_pos = 0, pos = 0;
+
+	for (int index = 0; index < s.length(); ++index)
+	{
+		pos = index;
+
+		// if the index is a separator
+		if (contains(s[index], separators))
+		{
+			// if we've skipped a token, collect it
+			if (prev_pos != index)
+			{
+				output.push_back(s.substr(prev_pos, index-prev_pos));
+
+				// skip white space here
+				while (index < s.length())
+				{
+					if (contains(s[index], separators))
+					{
+						++index;
+					}
+					else
+					{
+						prev_pos = index;
+						pos = index;
+						break;
+					}
+				}
+			}
+			else
+			{
+				prev_pos++;
+			}
+		}
+	}
+
+    output.push_back(s.substr(prev_pos, pos-prev_pos+1)); // Last word
+
+    return output;
+}
+
+#if 0
+// make this string lowercase
+static void tolower(std::string& s)
+{
+	for (int index = 0; index < s.length(); ++index)
+	{
+		s[index] = tolower( s[index] );
+	}
+}
+#endif
+
+static std::string next_token(std::vector<std::string>& tokens, MemoryStream& memStream)
+{
+	std::string result = "";
+
+	if (tokens.size() >= 1)
+	{
+		result = tokens[0];
+		tokens.erase(tokens.cbegin());
+	}
+	else
+	{
+		while (memStream.NumBytesAvailable())
+		{
+			std::string lineData = memStream.ReadLine();
+			tokens = split(lineData, "[](), \t");
+
+			if (tokens.size() >= 1)
+			{
+				return next_token(tokens, memStream);
+			}
+		}
+
+	}
+	return result;
+}
+
+//------------------------------------------------------------------------------
+CFile::CFile( std::string filepath )
+	: m_filepath( filepath )
+{
+	FILE* pFile = nullptr;
+#ifdef __STDC_LIB_EXT1__
+	int err = fopen_s(&pFile, filepath.c_str(), "rb");
+#else
+	int err = 0;
+	pFile = fopen(filepath.c_str(), "rb");
+#endif
+
+	if ((0==err) && (nullptr!=pFile))
+	{
+		fseek(pFile, 0, SEEK_END);
+		size_t length = ftell(pFile);
+		fseek(pFile, 0, SEEK_SET);
+
+		//printf("\n// CFile %s - %lld bytes\n", filepath.c_str(), length);
+		//printf("// Reading %s\n", filepath.c_str());
+		//printf("//\n");
+		//printf("// This file generated by overlayhelper.exe\n");
+		//printf("//\n");
+		//printf("//\n");
+
+		u8* pData = new u8[ length ];
+
+		fread(pData, sizeof(u8), length / sizeof(u8), pFile);
+
+		// Now we have a buffer, with the whole C File
+		// Looking to parse 2 types of things
+		// CODE_BLOCK macros
+		// DATA_BLOCK macros
+		// INCBIN macros
+		{
+			MemoryStream memStream(pData, length);
+
+			while (memStream.NumBytesAvailable())
+			{
+				std::string lineData = memStream.ReadLine();
+
+				// symbols are case sensitive
+
+				// we care about the first 32 bit value in hex, and the last value on the line, the symbol
+				std::vector<std::string> tokens = split(lineData, "[](), \t");
+
+				if (tokens.size() >= 2)
+				{
+					std::string token = next_token(tokens, memStream);
+
+					if (token == "INCBIN")
+					{
+						// section
+						token = next_token(tokens, memStream);
+						token = next_token(tokens, memStream);
+
+						printf("incbin_%s_start_high = incbin_%s_start>>16;\n", token.c_str(),token.c_str());
+						printf("incbin_%s_start_BLOCK = incbin_%s_start/0x2000;\n", token.c_str(),token.c_str());
+						printf("incbin_%s_length = incbin_%s_end-incbin_%s_start;\n", token.c_str(),token.c_str(),token.c_str());
+						printf("incbin_%s_length_high = incbin_%s_length>>16;\n", token.c_str(),token.c_str());
+
+					}
+					else if ( (token == "CODE_BLOCK") ||
+							  (token == "DATA_BLOCK")    )
+					{
+						// We aren't as good as the C Preprocessor, but we will allow this
+						// to span 1 line, because RickJr has weird syntax
+
+						// First get the block number
+						token = next_token(tokens, memStream);
+						u32 block_num = strtoul(token.c_str(), nullptr, 0);
+
+						// Next we need the function name
+						do
+						{
+							token = next_token(tokens, memStream);
+							
+						} while (token=="static" || token =="volatile");
+
+						// now token has return type
+
+						token = next_token(tokens, memStream);
+
+						// now token finally has our function or data name
+						printf("%s_BLOCK = %lu;\n", token.c_str(), block_num); // just need the block number for mapper
+					}
+				}
+			}
+		}
+
+		delete[] pData;
+
+		fclose(pFile);
+
+		//printf("\n// Read Completed\n");
+	}
+	else
+	{
+		printf("// CFile could not open %s\n", filepath.c_str());
+		printf("//\n");
+	}
+}
+
+//------------------------------------------------------------------------------
+
+CFile::~CFile()
+{
+}
+
+//------------------------------------------------------------------------------
+

bin/overlayhelper/source/cfile.h

@@ -0,0 +1,27 @@
+//
+// CFile Class
+//
+
+#ifndef CFILE_H_
+#define CFILE_H_
+
+#include <string>
+#include <vector>
+
+#include "bctypes.h"
+#include "memstream.h"
+
+//------------------------------------------------------------------------------
+
+class CFile
+{
+public:
+	CFile( std::string filepath );
+	~CFile();
+
+private:
+	std::string m_filepath;
+};
+
+#endif // CFILE_H_
+

bin/overlayhelper/source/memstream.h

@@ -0,0 +1,164 @@
+//
+// Jason's Memory Stream Helper thing
+// Serialize a byte stream into real types
+// 
+// Currently only support Little Endian
+//
+
+#ifndef MEMSTREAM_H_
+#define MEMSTREAM_H_
+
+
+#include <string>
+
+// Prototypes
+void *memcpy(void *dest, const void *src, size_t n);
+
+class MemoryStream
+{
+public:
+	MemoryStream(unsigned char* pStreamStart, size_t streamSize)
+		: m_pStreamStart( pStreamStart )
+		, m_streamSize(streamSize)
+		, m_pStreamCurrent( pStreamStart )
+	{}
+
+	~MemoryStream()
+	{
+		m_pStreamStart = nullptr;
+		m_streamSize = 0;
+		m_pStreamCurrent = nullptr;
+	}
+
+	// Really Dumb Reader Template
+	template <class T>
+	T Read()
+	{
+		T result;
+	
+		memcpy(&result, m_pStreamCurrent, sizeof(T));
+		m_pStreamCurrent += sizeof(T);
+	
+		return result;
+	}
+
+	template <class T>
+	void Read(T& result)
+	{
+		memcpy(&result, m_pStreamCurrent, sizeof(result));
+		m_pStreamCurrent += sizeof(result);
+	}
+
+	void ReadBytes(u8* pDest, size_t numBytes)
+	{
+		memcpy(pDest, m_pStreamCurrent, numBytes);
+		m_pStreamCurrent += numBytes;
+	}
+
+	std::string ReadPString()
+	{
+		std::string result;
+
+		u8 length = *m_pStreamCurrent++;
+
+		result.insert(0, (char*)m_pStreamCurrent, (size_t)length);
+
+		m_pStreamCurrent += length;
+
+		return result;
+	}
+
+	std::string ReadLine()
+	{
+		unsigned char* pStreamEnd = m_pStreamStart + m_streamSize;
+
+		std::string result;
+
+		u8 *pEndOfLine = m_pStreamCurrent;
+
+		while (pEndOfLine < pStreamEnd)
+		{
+			if ((0x0a != *pEndOfLine) && (0x0d != *pEndOfLine))
+			{
+				pEndOfLine++;
+			}
+			else
+			{
+				break;
+			}
+		}
+
+		size_t length = pEndOfLine - m_pStreamCurrent;
+
+		if (length)
+		{
+			// Capture the line
+			result.insert(0, (char*)m_pStreamCurrent, (size_t)length);
+			m_pStreamCurrent += length;
+		}
+
+		// Figure out if that loop broke out because we hit the end of the file
+		while (pEndOfLine < pStreamEnd)
+		{
+			if ((0x0a == *pEndOfLine) || (0x0d == *pEndOfLine))
+			{
+				pEndOfLine++;
+			}
+			else
+			{
+				break;
+			}
+		}
+
+		m_pStreamCurrent = pEndOfLine;
+		if (m_pStreamCurrent > pStreamEnd)
+		{
+			m_pStreamCurrent = pStreamEnd;
+		}
+		return result;
+
+	}
+
+	size_t SeekCurrent(int delta)
+	{
+		m_pStreamCurrent += delta;
+		return m_pStreamCurrent - m_pStreamStart;
+	}
+
+	size_t SeekSet(size_t offset)
+	{
+		m_pStreamCurrent = m_pStreamStart + offset;
+		return m_pStreamCurrent - m_pStreamStart;
+	}
+
+	unsigned char* GetPointer() { return m_pStreamCurrent; }
+
+	size_t NumBytesAvailable() {
+
+		unsigned char* pStreamEnd = m_pStreamStart + m_streamSize;
+
+		if (pStreamEnd - m_pStreamCurrent >= 0)
+		{
+			return pStreamEnd - m_pStreamCurrent;
+		}
+		else
+		{
+			return 0;
+		}
+	}
+
+
+
+private:
+
+	unsigned char* m_pStreamStart;
+	size_t m_streamSize;
+
+	unsigned char* m_pStreamCurrent;
+	
+};
+
+
+#endif // MEMSTREAM_H_
+
+

bin/overlayhelper/source/overlayhelper.cpp

@@ -0,0 +1,70 @@
+// overlayhelper
+//
+// - generate linker script crap, so that we can resolve addresses larger
+//   than 32-bit with mos llvm (hacky work around for 16 bit address linker)
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "cfile.h"
+
+//------------------------------------------------------------------------------
+void helpText()
+{
+	printf("overlayhelper - v1.0\n");
+	printf("--------------------\n");
+	printf("Convert macros found in C code, into mos-llvm .ld linker format\n");
+	printf("\noverlayhelper [options] <file.c>\n");
+	printf("  -v  verbose\n\n");
+
+	exit(-1);
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+	char* pInfilePath  = nullptr;
+	bool bVerbose = false;
+
+	for (int idx = 1; idx < argc; ++idx )
+	{
+		char* arg = argv[ idx ];
+
+		if ('-' == arg[0])
+		{
+			// Parse as an option
+			if ('v'==arg[1])
+			{
+				bVerbose = true;
+			}
+		}
+		else if (nullptr == pInfilePath)
+		{
+			// Assume the first non-option is an input file path
+			pInfilePath = argv[ idx ];
+		}
+		else
+		{
+			// Oh Crap, we have a non-option, but we don't know what to do with
+			// it
+			printf("ERROR: Invalid option, Arg %d = %s\n\n", idx, argv[ idx ]);
+			helpText();
+		}
+	}
+
+	if (pInfilePath)
+	{
+		// Load the .c File
+		CFile *pCFile = new CFile(std::string(pInfilePath));
+		delete pCFile;
+	}
+	else
+	{
+		helpText();
+	}
+
+
+	return 0;
+}
+

bin/overlayhelper/vcxproj/overlayhelper.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34309.116
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "overlayhelper", "overlayhelper.vcxproj", "{77D5186F-C388-4740-8BA7-23997A659FB8}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Debug|x64.ActiveCfg = Debug|x64
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Debug|x64.Build.0 = Debug|x64
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Debug|x86.ActiveCfg = Debug|Win32
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Debug|x86.Build.0 = Debug|Win32
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Release|x64.ActiveCfg = Release|x64
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Release|x64.Build.0 = Release|x64
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Release|x86.ActiveCfg = Release|Win32
+		{77D5186F-C388-4740-8BA7-23997A659FB8}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {4AE0A6E5-5981-4BAE-96E2-DDD5656B0B2E}
+	EndGlobalSection
+EndGlobal

bin/overlayhelper/vcxproj/overlayhelper.vcxproj

@@ -0,0 +1,147 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{77d5186f-c388-4740-8ba7-23997a659fb8}</ProjectGuid>
+    <RootNamespace>overlayhelper</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <OutDir>$(SolutionDir)\..\..</OutDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <OutDir>$(SolutionDir)\..\..</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="..\source\bctypes.h" />
+    <ClInclude Include="..\source\cfile.h" />
+    <ClInclude Include="..\source\memstream.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\source\cfile.cpp" />
+    <ClCompile Include="..\source\overlayhelper.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

bin/overlayhelper/vcxproj/overlayhelper.vcxproj.filters

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\source\bctypes.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\source\cfile.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\source\memstream.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\source\cfile.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\source\overlayhelper.cpp" />
+  </ItemGroup>
+</Project>

rickjr.ld

@@ -0,0 +1,183 @@
+/* RickJr Linker Script
+
+*/
+
+/*
+TARGET(binary)
+INPUT(./data/congrats.256)
+INPUT(./data/haf.256)
+INPUT(./data/splash.256)
+INPUT(./data/sprites_data.256)
+INPUT(./data/tiles_data.256)
+*/
+
+
+/* fake C Stack */
+PROVIDE(__stack = 0xA000);
+/* entry point to my program */
+PROVIDE(__f256_start = 0x300);
+/* page size of a block of memory */
+PROVIDE(__BLOCK_SIZE = 0x2000);
+/* swappable block address */
+PROVIDE(__SLOT_ADDR = 0xA000);
+
+/* f256k uses first 16 bytes of ZP for mmu control? */
+__rc0 = 0x10;
+INCLUDE imag-regs.ld
+ASSERT(__rc0 == 0x10, "Inconsistent zero page map.")
+ASSERT(__rc31 == 0x2f, "Inconsistent zero page map.")
+
+MEMORY {
+    /* kernel uses 0xf0-0xff for parameter passing */
+    zp : ORIGIN = __rc31 + 1, LENGTH = 0xF0 - (__rc31 + 1)
+    ram (rw) : ORIGIN = __f256_start, LENGTH = 0xA000-__f256_start
+}
+
+/* LMAs */
+__block8_lma	= ( 8<<24)|__SLOT_ADDR;
+__block9_lma	= ( 9<<24)|__SLOT_ADDR;
+__block10_lma	= (10<<24)|__SLOT_ADDR;
+__block11_lma	= (11<<24)|__SLOT_ADDR;
+__block12_lma	= (12<<24)|__SLOT_ADDR;
+__block13_lma	= (13<<24)|__SLOT_ADDR;
+__block14_lma	= (14<<24)|__SLOT_ADDR;
+__block15_lma	= (15<<24)|__SLOT_ADDR;
+__block16_lma	= (16<<24)|__SLOT_ADDR;
+__block17_lma	= (17<<24)|__SLOT_ADDR;
+__block18_lma	= (18<<24)|__SLOT_ADDR;
+__block19_lma	= (19<<24)|__SLOT_ADDR;
+__block20_lma	= (20<<24)|__SLOT_ADDR;
+__block21_lma	= (21<<24)|__SLOT_ADDR;
+__block22_lma	= (22<<24)|__SLOT_ADDR;
+__block23_lma	= (23<<24)|__SLOT_ADDR;
+
+/* Stash preloaded binary data */
+__binarydata_lma  = 0x70000;  /* At least now, its less than 64k */
+__BINARYDATA_SIZE = 0x10000;
+
+
+MEMORY {
+
+  binarydata : ORIGIN = __binarydata_lma, LENGTH = __BINARYDATA_SIZE
+
+  block8    : ORIGIN = __block8_lma,  LENGTH = __BLOCK_SIZE
+  block9    : ORIGIN = __block9_lma,  LENGTH = __BLOCK_SIZE
+  block10   : ORIGIN = __block10_lma, LENGTH = __BLOCK_SIZE
+  block11   : ORIGIN = __block11_lma, LENGTH = __BLOCK_SIZE
+  block12   : ORIGIN = __block12_lma, LENGTH = __BLOCK_SIZE
+  block13   : ORIGIN = __block13_lma, LENGTH = __BLOCK_SIZE
+  block14   : ORIGIN = __block14_lma, LENGTH = __BLOCK_SIZE
+  block15   : ORIGIN = __block15_lma, LENGTH = __BLOCK_SIZE
+  block16   : ORIGIN = __block16_lma, LENGTH = __BLOCK_SIZE
+  block17   : ORIGIN = __block17_lma, LENGTH = __BLOCK_SIZE
+  block18   : ORIGIN = __block18_lma, LENGTH = __BLOCK_SIZE
+  block19   : ORIGIN = __block19_lma, LENGTH = __BLOCK_SIZE
+  block20   : ORIGIN = __block20_lma, LENGTH = __BLOCK_SIZE
+  block21   : ORIGIN = __block21_lma, LENGTH = __BLOCK_SIZE
+  block22   : ORIGIN = __block22_lma, LENGTH = __BLOCK_SIZE
+  block23   : ORIGIN = __block23_lma, LENGTH = __BLOCK_SIZE
+}
+
+REGION_ALIAS("c_writeable", ram)
+/* REGION_ALIAS("c_readonly", fixed) */
+/* I want to use the lower 40k */
+REGION_ALIAS("c_readonly", ram)
+
+SECTIONS {
+
+  INCLUDE c.ld
+
+  .binarydata : { *(.binarydata  .binarydata.*) } >binarydata  end_binarydata = .;
+
+  .block8     : { *(.block8     .block8.*)     } >block8   end_block8 = .;
+  .block9     : { *(.block9     .block9.*)     } >block9   end_block9 = .;
+  .block10    : { *(.block10    .block10.*)    } >block10  end_block10 = .;
+  .block11    : { *(.block11    .block11.*)    } >block11  end_block11 = .;
+  .block12    : { *(.block12    .block12.*)    } >block12  end_block12 = .;
+  .block13    : { *(.block13    .block13.*)    } >block13  end_block13 = .;
+  .block14    : { *(.block14    .block14.*)    } >block14  end_block14 = .;
+  .block15    : { *(.block15    .block15.*)    } >block15  end_block15 = .;
+  .block16    : { *(.block16    .block16.*)    } >block16  end_block16 = .;
+  .block17    : { *(.block17    .block17.*)    } >block17  end_block17 = .;
+  .block18    : { *(.block18    .block18.*)    } >block18  end_block18 = .;
+  .block19    : { *(.block19    .block19.*)    } >block19  end_block19 = .;
+  .block20    : { *(.block20    .block20.*)    } >block20  end_block20 = .;
+  .block21    : { *(.block21    .block21.*)    } >block21  end_block21 = .;
+  .block22    : { *(.block22    .block22.*)    } >block22  end_block22 = .;
+  .block23    : { *(.block23    .block23.*)    } >block23  end_block23 = .;
+}
+
+/* Trick linker into exposing symbols with values larger than 16 bits */
+INCLUDE overlay.ld
+
+/* OUTPUT_FORMAT { FULL(cart_rom) } */
+OUTPUT_FORMAT {
+  BYTE(0x5A)    /* pgZ */
+
+/* ram segment */
+
+  SHORT(ORIGIN(ram))              /* where to load it, 24 bits */
+  BYTE(0x00)
+  SHORT(__bss_start-ORIGIN(ram))  /* size to load */
+  BYTE(0x00)
+  TRIM(ram)
+
+/* block8 */
+  SHORT(8*0x2000)
+  BYTE(8/8)            /* block#/8 = the actual system high byte */ 
+  SHORT(end_block8 - __block8_lma)
+  BYTE(0x00)
+  TRIM(block8)
+
+/* block9 */
+  SHORT(9*0x2000)
+  BYTE(9/8)            /* block#/8 = the actual system high byte */  
+  SHORT(end_block9 - __block9_lma)
+  BYTE(0x00)
+  TRIM(block9)
+
+/* block10 */
+  SHORT(10*0x2000)
+  BYTE(10/8)            /* block#/8 = the actual system high byte */ 
+  SHORT(end_block10 - __block10_lma)
+  BYTE(0x00)
+  TRIM(block10)
+
+/* block11 */
+  SHORT(11*0x2000)
+  BYTE(11/8)            /* block#/8 = the actual system high byte */ 
+  SHORT(end_block11 - __block11_lma)
+  BYTE(0x00)
+  TRIM(block11)
+
+
+/*
+  Empty Blocks are not allowed, bring these in as you use them
+
+  TRIM(block12)
+  TRIM(block13)
+  TRIM(block14)
+  TRIM(block15)
+  TRIM(block16)
+  TRIM(block17)
+  TRIM(block18)
+  TRIM(block19)
+  TRIM(block20)
+  TRIM(block21)
+  TRIM(block22)
+  TRIM(block23)
+*/
+
+/* Compressed Data */
+  SHORT(ORIGIN(binarydata))
+  BYTE(ORIGIN(binarydata)>>16)
+  SHORT(end_binarydata - __binarydata_lma)
+  BYTE((end_binarydata - __binarydata_lma)>>16)
+  TRIM(binarydata)
+
+ /* Launch the program, at _start */
+ SHORT(_start)
+ LONG(0)
+
+}
+

src/dat_ents.c

@@ -19,7 +19,7 @@
 segment "dat";
 #endif
 
-entdata_t ent_entdata[ENT_NBR_ENTDATA] = {
+DATA_BLOCK(10) entdata_t ent_entdata[ENT_NBR_ENTDATA] = {
   {0000, 0000, 000000, 000000, 0000, 0000, 0x00},
   {0x18, 0x15, 000000, 000000, 0000, 0000, 0x00},
   {0000, 0000, 000000, 000000, 0000, 0000, 0x00},
@@ -101,7 +101,7 @@ entdata_t ent_entdata[ENT_NBR_ENTDATA] = {
   {0x18, 0x10, 0x000c, 0x0005, 0x04, 0x04, 0x14},
 };
 
-U8 ent_sprseq[ENT_NBR_SPRSEQ] = {
+DATA_BLOCK(10) U8 ent_sprseq[ENT_NBR_SPRSEQ] = {
   0000, 0x01, 0000, 0x02, 0x05, 0x03, 0x04, 0x03,
   0x65, 0xff, 0x66, 0xff, 0x55, 0xff, 0000, 0x56,
   0xff, 0000, 0x57, 0xff, 0000, 0x58, 0x59, 0xff,
@@ -122,7 +122,7 @@ U8 ent_sprseq[ENT_NBR_SPRSEQ] = {
   0xff, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xff, 0x00,
 };
 
-mvstep_t ent_mvstep[ENT_NBR_MVSTEP] = {
+DATA_BLOCK(10) mvstep_t ent_mvstep[ENT_NBR_MVSTEP] = {
   { 0x10, 0, 0 } ,
   { 0x0c, 0, 4 } ,
   { 0xfa, 0, 0 } ,

src/dat_maps.c

@@ -19,7 +19,7 @@ segment "dat";
 #include "system.h"
 #include "maps.h"
 
-map_t map_maps[MAP_NBR_MAPS] = {
+DATA_BLOCK(9) map_t map_maps[MAP_NBR_MAPS] = {
 #ifdef IIGS
   {0x0008, 0x008b, 0x0008, 000000, &samerica_lz4},
   {0x0008, 0x008b, 0x0068, 0x0009, &egypt_lz4},
@@ -35,7 +35,7 @@ map_t map_maps[MAP_NBR_MAPS] = {
 #endif
 };
 
-submap_t map_submaps[MAP_NBR_SUBMAPS] = {
+DATA_BLOCK(9) submap_t map_submaps[MAP_NBR_SUBMAPS] = {
   {000000, 000000, 000000, 000000},
   {000000, 0x0078, 0x0003, 0x0005},
   {000000, 0x0150, 0x0006, 0x0011},
@@ -85,7 +85,7 @@ submap_t map_submaps[MAP_NBR_SUBMAPS] = {
   {0x0001, 0x1f5a, 0x0096, 0x0202},
 };
 
-connect_t map_connect[MAP_NBR_CONNECT] = {
+DATA_BLOCK(9) connect_t map_connect[MAP_NBR_CONNECT] = {
 
   /* map 0 */
 
@@ -1322,7 +1322,7 @@ U8 map_bnums[MAP_NBR_BNUMS] = {
   0xc0, 0xc0, 0000, 0000, 0000, 0000, 0000, 0000,
 };
 
-block_t map_blocks[MAP_NBR_BLOCKS] = {
+DATA_BLOCK(9) block_t map_blocks[MAP_NBR_BLOCKS] = {
   {0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
    0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000},
   {0x29, 0x2a, 0x2d, 0x2e, 0x2b, 0x2c, 0x2f, 0x30,
@@ -1837,7 +1837,7 @@ block_t map_blocks[MAP_NBR_BLOCKS] = {
    0x22, 0x2d, 0x2e, 0xe7, 0x28, 0x2b, 0x2c, 0xea},
 };
 
-mark_t map_marks[MAP_NBR_MARKS] = {
+DATA_BLOCK(9) mark_t map_marks[MAP_NBR_MARKS] = {
   {0x18, 0x16, 0000, 0x08, 0x08}, /* 0 */
   {0x18, 0x2a, 0x88, 0x01, 0x28},
   {0x38, 0x04, 0xf0, 0x15, 0x29},
@@ -2363,7 +2363,7 @@ mark_t map_marks[MAP_NBR_MARKS] = {
   {0xff, 0000, 0000, 0000, 0000},
 };
 
-U8 map_eflg_c[MAP_NBR_EFLGC] = {
+DATA_BLOCK(9) U8 map_eflg_c[MAP_NBR_EFLGC] = {
   0x4d, 0000, 0x0e, 0x02, 0x04, 0x04, 0x57, 0x08,
   0x08, 0x18, 0x03, 0x68, 0x3b, 0x48, 0x04, 0x80,
   0x37, 0000, 0x04, 0x02, 0x04, 0x04, 0x90, 0x08,

src/dat_spritesJR.c

@@ -0,0 +1,57 @@
+/*
+ * xrick/data/dat-sprites.c
+ *
+ * Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net). All rights reserved.
+ *
+ * The use and distribution terms for this software are contained in the file
+ * named README, which can be found in the root of this distribution. By
+ * using this software in any fashion, you are agreeing to be bound by the
+ * terms of this license.
+ *
+ * You must not remove this notice, or any other, from this software.
+ */
+
+#include "config.h"
+
+#ifdef GFXF256
+
+// $$TODO - move this macro into it's own header
+#define STR2(x) #x
+#define STR(x) STR2(x)
+
+// this aligns start address to 16 and terminates byte array with explict 0
+// which is not really needed, feel free to change it to whatever you want/need
+#define INCBIN(INCBIN_SECTION, name, file) \
+    __asm__(".section " INCBIN_SECTION ",\"aR\" \n" \
+            ".global incbin_" STR(name) "_start\n" \
+            ".balign 16\n" \
+            "incbin_" STR(name) "_start:\n" \
+            ".incbin \"" file "\"\n" \
+            \
+            ".global incbin_" STR(name) "_end\n" \
+            ".balign 1\n" \
+            "incbin_" STR(name) "_end:\n" \
+            ".byte 0\n" \
+    ); \
+    extern __attribute__((aligned(16))) const char incbin_ ## name ## _start[]; \
+    extern                              const char incbin_ ## name ## _end[]
+
+// Credits/Jr Title
+INCBIN(".binarydata.credits", credits_256, "data/credits.256");
+// Title Page
+INCBIN(".binarydata.splash", splash_256, "data/splash.256");
+// Map Tiles
+INCBIN(".binarydata.tiles", tiles_256, "data/tiles_data.256");
+// Sprite Frames (32x32 sprites)
+INCBIN(".binarydata.sprites", sprites_256, "data/sprites_data.256");
+// Hall of Fame
+INCBIN(".binarydata.haf", haf_256, "data/haf.256");
+// Congrats
+INCBIN(".binarydata.haf", congrats_256, "data/congrats.256");
+
+INCBIN(".block11.i256", i256lib, "lib/i256.flib");
+
+#endif /* GFXF256 */
+
+/* eof */
+

src/mapper.h

@@ -0,0 +1,29 @@
+/*
+	Special mapper macros for the F256 + mos-llvm, so we can put code
+	anywhere in physical ram
+	
+	Currently only blocks 8-23 are defined in the linker file
+	
+	If you need to go beyond the 128k of extra code, just add more definitions
+	into rickjr.ld
+*/
+
+#if defined(F256) && F256
+
+/*
+$$JGA TODO, sort out how to mark an entire file
+*/
+
+#define CODE_BLOCK(index) __attribute__((noinline, section(".block"#index)))
+#define DATA_BLOCK(index) __attribute__((section(".block"#index)))
+
+#define PAGEIN(_function_BLOCK) POKE(SWAP_SLOT, _function_BLOCK)
+
+#else
+
+#define CODE_BLOCK(index)
+#define DATA_BLOCK(index)
+
+#define PAGEIN(_function_BLOCK)
+
+#endif

src/scr_credit.c

@@ -13,9 +13,27 @@ segment "screen";
 #endif
 
 extern char credits_lz4;
+extern char incbin_sprites_256_start[];
+extern char incbin_sprites_256_start_high[];
+extern char incbin_tiles_256_start[];
+extern char incbin_splash_256_start[];
+extern char __block23_lma_high[];
+//extern char scr_credit_BLOCK[];
+extern const char scr_credit_BLOCK;
 
-void scr_credit()
+CODE_BLOCK(8) void scr_credit()
 {
+#ifdef F256
+	//$$JGA TODO - fix this
+	*((char*)0x200) = (char)(((long)(&incbin_sprites_256_start)));
+	*((char*)0x201) = (char)(((long)(&incbin_sprites_256_start))>>8);
+	*((char*)0x202) = (char)(((long)(&incbin_sprites_256_start_high)));
+//	*((char*)0x203) = (char)(((long)(&scr_credit_BLOCK)));
+	*((char*)0x203) = scr_credit_BLOCK;
+
+//	*((char*)0x203) = (char)(((long)(__block23_lma_high))>>8);
+#endif
+
 #ifdef IIGS
 	// Keep the Screen on
 	*VIDEO_REGISTER|=0xC0;

src/system.c

@@ -34,9 +34,6 @@
 void puts(char* c_str)
 {
 }
-void __putchar(char c)
-{
-}
 #endif
 
 
@@ -141,7 +138,7 @@ sys_sleep(int s)
 /*
  * Initialize system
  */
-void
+CODE_BLOCK(8) void
 sys_init(int argc, char **argv)
 {
 	sysarg_init(argc, argv);