-<<<<<<< HEAD
//\r
// FILE.CPP\r
//\r
Start of Data Segment = 0x00803dd0\r
*/\r
#endif\r
-=======
-//
-// FILE.CPP
-//
-// File support
-// by James Hammons
-// (C) 2010 Underground Software
-//
-// JLH = James Hammons <jlhamm@acm.org>
-// JPM = Jean-Paul Mari <djipi.mari@gmail.com>
-//
-// Who When What
-// --- ---------- ------------------------------------------------------------
-// JLH 01/16/2010 Created this log ;-)
-// JLH 02/28/2010 Added functions to look inside .ZIP files and handle
-// contents
-// JLH 06/01/2012 Added function to check ZIP file CRCs against file DB
-// JPM 06/06/2016 Visual Studio support
-// JPM 06/15/2016 ELF format support
-// JPM 06/19/2016 Soft debugger support
-// JPM 07/15/2016 DWARF format support
-//
-
-#include "file.h"
-#if defined(_MSC_VER)
-#include "_MSC_VER/config.h"
-#endif // _MSC_VER
-#include <stdarg.h>
-#include <string.h>
-#include "crc32.h"
-#include "filedb.h"
-#include "eeprom.h"
-#include "jaguar.h"
-#include "log.h"
-#include "memory.h"
-#include "universalhdr.h"
-#include "unzip.h"
-#include "zlib.h"
-#include "libelf/libelf.h"
-#include "libelf/gelf.h"
-#include "libdwarf.h"
-#include "debugger/ELFManager.h"
-#include "debugger/DBGManager.h"
-
-
-// Private function prototypes
-
-static int gzfilelength(gzFile gd);
-#if defined(_MSC_VER) || defined(__MINGW64__)|| defined(__MINGW32__) || defined(__CYGWIN__)
-static bool CheckExtension(const uint8_t * filename, const char * ext);
-#else
-static bool CheckExtension(const char * filename, const char * ext);
-#endif // _MSC_VER
-//static int ParseFileType(uint8_t header1, uint8_t header2, uint32_t size);
-
-// Private variables/enums
-
-
-//
-// Generic ROM loading
-//
-uint32_t JaguarLoadROM(uint8_t * &rom, char * path)
-{
-// We really should have some kind of sanity checking for the ROM size here to prevent
-// a buffer overflow... !!! FIX !!!
-#if defined(_MSC_VER)
-#pragma message("Warning: !!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!")
-#else
-#warning "!!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!"
-#endif // _MSC_VER
- uint32_t romSize = 0;
-
- WriteLog("FILE: JaguarLoadROM attempting to load file '%s'...", path);
- char * ext = strrchr(path, '.');
-
- // No filename extension == YUO FAIL IT (it is loading the file).
- // This is naive, but it works. But should probably come up with something a little
- // more robust, to prevent problems with dopes trying to exploit this.
- if (ext == NULL)
- {
- WriteLog("FAILED!\n");
- return 0;
- }
-
- WriteLog("\nFILE: Succeeded in finding extension (%s)!\n", ext);
- WriteLog("FILE: Loading \"%s\"...", path);
-
- if (strcasecmp(ext, ".zip") == 0)
- {
- // Handle ZIP file loading here...
- WriteLog("(ZIPped)...");
-
-// uint8_t * buffer = NULL;
-// romSize = GetFileFromZIP(path, FT_SOFTWARE, buffer);
- romSize = GetFileFromZIP(path, FT_SOFTWARE, rom);
-
- if (romSize == 0)
- {
- WriteLog("Failed!\n");
- return 0;
- }
-
-// memcpy(rom, buffer, romSize);
-// delete[] buffer;
- }
- else
- {
- // Handle gzipped files transparently [Adam Green]...
-
- gzFile fp = gzopen(path, "rb");
-
- if (fp == NULL)
- {
- WriteLog("Failed!\n");
- return 0;
- }
-
- romSize = gzfilelength(fp);
- rom = new uint8_t[romSize];
- gzseek(fp, 0, SEEK_SET);
- gzread(fp, rom, romSize);
- gzclose(fp);
- }
-
- WriteLog("OK (%i bytes)\n", romSize);
-
- return romSize;
-}
-
-
-//
-// Jaguar file loading
-// We do a more intelligent file analysis here instead of relying on (possible
-// false) file extensions which people don't seem to give two shits about
-// anyway. :-(
-//
-bool JaguarLoadFile(char * path)
-{
- Elf *ElfMem;
- GElf_Ehdr ElfEhdr, *PtrGElfEhdr;
- Elf_Scn *PtrElfScn;
- Elf_Data *PtrElfData;
- GElf_Shdr GElfShdr, *PtrGElfShdr;
- size_t NbrSect;
- uint8_t *buffer = NULL;
- char *NameSection;
- size_t ElfSectionNameType;
- int DBGType = DBG_NO_TYPE;
- bool error;
- int err;
-
- jaguarROMSize = JaguarLoadROM(buffer, path);
-
- if (jaguarROMSize == 0)
- {
- // It's up to the GUI to report errors, not us. :-)
- WriteLog("FILE: Could not load ROM from file \"%s\"...\nAborting load!\n", path);
- return false;
- }
-
- jaguarMainROMCRC32 = crc32_calcCheckSum(buffer, jaguarROMSize);
- WriteLog("CRC: %08X\n", (unsigned int)jaguarMainROMCRC32);
-// TODO: Check for EEPROM file in ZIP file. If there is no EEPROM in the user's EEPROM
-// directory, copy the one from the ZIP file, if it exists.
- EepromInit();
- jaguarRunAddress = 0x802000; // For non-BIOS runs, this is true
- int fileType = ParseFileType(buffer, jaguarROMSize);
- jaguarCartInserted = false;
- DBGManager_Reset();
-
- if (fileType == JST_ROM)
- {
- jaguarCartInserted = true;
- memcpy(jagMemSpace + 0x800000, buffer, jaguarROMSize);
-// Checking something...
-jaguarRunAddress = GET32(jagMemSpace, 0x800404);
-WriteLog("FILE: Cartridge run address is reported as $%X...\n", jaguarRunAddress);
- delete[] buffer;
- return true;
- }
- else if (fileType == JST_ALPINE)
- {
- // File extension ".ROM": Alpine image that loads/runs at $802000
- WriteLog("FILE: Setting up Alpine ROM... Run address: 00802000, length: %08X\n", jaguarROMSize);
- memset(jagMemSpace + 0x800000, 0xFF, 0x2000);
- memcpy(jagMemSpace + 0x802000, buffer, jaguarROMSize);
- delete[] buffer;
-
-// Maybe instead of this, we could try requiring the STUBULATOR ROM? Just a thought...
- // Try setting the vector to say, $1000 and putting an instruction there that loops forever:
- // This kludge works! Yeah!
- SET32(jaguarMainRAM, 0x10, 0x00001000);
- SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here
- return true;
- }
- else if (fileType == JST_ELF32)
- {
- DBGType = DBG_ELF;
-
- char *PtrELFExe = (char *)ELFManager_ExeCopy(buffer, jaguarROMSize);
-
- if (PtrELFExe != NULL)
- {
- if ((elf_version(EV_CURRENT) != EV_NONE) && (ElfMem = ELFManager_MemOpen(PtrELFExe, jaguarROMSize)))
- {
- if (ELFManager_DwarfInit(ElfMem))
- {
- DBGType |= DBG_ELFDWARF;
- }
-
- if (!elf_getshdrnum(ElfMem, &NbrSect))
- {
- if (((PtrGElfEhdr = gelf_getehdr(ElfMem, &ElfEhdr)) != NULL) && ((PtrElfScn = elf_getscn(ElfMem, 0)) != NULL))
- {
- for (error = false; (PtrElfScn != NULL) && (error == false); PtrElfScn = elf_nextscn(ElfMem, PtrElfScn))
- {
- PtrElfData = NULL;
-
- if ((PtrGElfShdr = gelf_getshdr(PtrElfScn, &GElfShdr)) == NULL)
- {
- error = true;
- }
- else
- {
- NameSection = elf_strptr(ElfMem, PtrGElfEhdr->e_shstrndx, (size_t)PtrGElfShdr->sh_name);
- WriteLog("FILE: ELF Section name: %s\n", NameSection);
-
- if ((ElfSectionNameType = ELFManager_GetSectionType(NameSection)) == ELF_NO_TYPE)
- {
- WriteLog("FILE: ELF Section not listed\n");
- error = true;
- }
- else
- {
- switch (PtrGElfShdr->sh_type)
- {
- case SHT_NULL:
- break;
-
- case SHT_PROGBITS:
- if ((PtrGElfShdr->sh_flags & (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR)))
- {
- if (PtrGElfShdr->sh_addr >= 0x800000)
- {
- memcpy(jagMemSpace + PtrGElfShdr->sh_addr, buffer + PtrGElfShdr->sh_offset, PtrGElfShdr->sh_size);
- //error = false;
- }
- else
- {
- memcpy(jaguarMainRAM + PtrGElfShdr->sh_addr, buffer + PtrGElfShdr->sh_offset, PtrGElfShdr->sh_size);
- }
- }
- else
- {
- switch (ElfSectionNameType)
- {
- case ELF_debug_aranges_TYPE:
- case ELF_debug_info_TYPE:
- case ELF_debug_abbrev_TYPE:
- case ELF_debug_line_TYPE:
- case ELF_debug_frame_TYPE:
- case ELF_debug_ranges_TYPE:
- case ELF_debug_str_TYPE:
- case ELF_debug_loc_TYPE:
- break;
-
- case ELF_comment_TYPE:
- break;
-
- default:
- error = true;
- break;
- }
- }
- break;
-
- case SHT_NOBITS:
- break;
-
- case SHT_STRTAB:
- case SHT_SYMTAB:
- while ((error == false) && ((PtrElfData = elf_getdata(PtrElfScn, PtrElfData)) != NULL))
- {
- if (!ELFManager_AddTab(PtrElfData, ElfSectionNameType))
- {
- error = true;
- }
- }
- break;
-
- default:
- error = true;
- break;
- }
- }
- }
- }
-
- jaguarRunAddress = (uint32_t)PtrGElfEhdr->e_entry;
- WriteLog("FILE: Setting up ELF 32bits... Run address: %08X\n", jaguarRunAddress);
- }
- else
- {
- error = true;
- }
- }
- else
- {
- error = true;
- }
- }
- else
- {
- error = true;
- WriteLog("FILE: libelf version is not recognized or libelf memory cannot be opened\n");
- }
- }
- else
- {
- error = true;
- WriteLog("FILE: ELFManager cannot allocate memory\n");
- }
-
- delete[] buffer;
-
- if (error)
- {
- WriteLog("FILE: ELF parsing error\n");
-
- if (err = elf_errno())
- {
- WriteLog("FILE: ELF error: %s\n", elf_errmsg(err));
- }
-
- return false;
- }
- else
- {
- DBGManager_SetType(DBGType);
- return true;
- }
- }
- else if (fileType == JST_ABS_TYPE1)
- {
- // For ABS type 1, run address == load address
- uint32_t loadAddress = GET32(buffer, 0x16),
- codeSize = GET32(buffer, 0x02) + GET32(buffer, 0x06);
- WriteLog("FILE: Setting up homebrew (ABS-1)... Run address: %08X, length: %08X\n", loadAddress, codeSize);
- memcpy(jagMemSpace + loadAddress, buffer + 0x24, codeSize);
- delete[] buffer;
- jaguarRunAddress = loadAddress;
- return true;
- }
- else if (fileType == JST_ABS_TYPE2)
- {
- uint32_t loadAddress = GET32(buffer, 0x28), runAddress = GET32(buffer, 0x24),
- codeSize = GET32(buffer, 0x18) + GET32(buffer, 0x1C);
- WriteLog("FILE: Setting up homebrew (ABS-2)... Run address: %08X, length: %08X\n", runAddress, codeSize);
- memcpy(jagMemSpace + loadAddress, buffer + 0xA8, codeSize);
- delete[] buffer;
- jaguarRunAddress = runAddress;
- return true;
- }
- // NB: This is *wrong*
- /*
- Basically, if there is no "JAG" at position $1C, then the long there is the load/start
- address in LITTLE ENDIAN.
- If "JAG" is present, the the next character ("R" or "L") determines the size of the
- JagServer command (2 bytes vs. 4). Following that are the commands themselves;
- typically it will either be 2 (load) or 3 (load & run). Command headers go like so:
- 2:
- Load address (long)
- Length (long)
- payload
- 3:
- Load address (long)
- Length (long)
- Run address (long)
- payload
- 5: (Reset)
- [command only]
- 7: (Run at address)
- Run address (long)
- [no payload]
- 9: (Clear memory)
- Start address (long)
- End address (long)
- [no payload]
- 10: (Poll for commands)
- [command only]
- 12: (Load & run user program)
- filname, terminated with NULL
- [no payload]
- $FFFF: (Halt)
- [no payload]
- */
- else if (fileType == JST_JAGSERVER)
- {
- // This kind of shiaut should be in the detection code below...
- // (and now it is! :-)
-// if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')
-// {
- // Still need to do some checking here for type 2 vs. type 3. This assumes 3
- // Also, JAGR vs. JAGL (word command size vs. long command size)
- uint32_t loadAddress = GET32(buffer, 0x22), runAddress = GET32(buffer, 0x2A);
- WriteLog("FILE: Setting up homebrew (Jag Server)... Run address: $%X, length: $%X\n", runAddress, jaguarROMSize - 0x2E);
- memcpy(jagMemSpace + loadAddress, buffer + 0x2E, jaguarROMSize - 0x2E);
- delete[] buffer;
- jaguarRunAddress = runAddress;
-
-// Hmm. Is this kludge necessary?
-SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)
-SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here
-
- return true;
-// }
-// else // Special WTFOMGBBQ type here...
-// {
-// uint32_t loadAddress = (buffer[0x1F] << 24) | (buffer[0x1E] << 16) | (buffer[0x1D] << 8) | buffer[0x1C];
-// WriteLog("FILE: Setting up homebrew (GEMDOS WTFOMGBBQ type)... Run address: $%X, length: $%X\n", loadAddress, jaguarROMSize - 0x20);
-// memcpy(jagMemSpace + loadAddress, buffer + 0x20, jaguarROMSize - 0x20);
-// delete[] buffer;
-// jaguarRunAddress = loadAddress;
-// return true;
-// }
- }
- else if (fileType == JST_WTFOMGBBQ)
- {
- uint32_t loadAddress = (buffer[0x1F] << 24) | (buffer[0x1E] << 16) | (buffer[0x1D] << 8) | buffer[0x1C];
- WriteLog("FILE: Setting up homebrew (GEMDOS WTFOMGBBQ type)... Run address: $%X, length: $%X\n", loadAddress, jaguarROMSize - 0x20);
- memcpy(jagMemSpace + loadAddress, buffer + 0x20, jaguarROMSize - 0x20);
- delete[] buffer;
- jaguarRunAddress = loadAddress;
- return true;
- }
-
- // We can assume we have JST_NONE at this point. :-P
- WriteLog("FILE: Failed to load headerless file.\n");
- return false;
-}
-
-
-//
-// "Debugger" file loading
-// To keep the things separate between "Debugger" and "Alpine" loading until usage clarification has been done
-//
-bool DebuggerLoadFile(char * path)
-{
- return (AlpineLoadFile(path));
-}
-
-
-//
-// "Alpine" file loading
-// Since the developers were coming after us with torches and pitchforks, we
-// decided to allow this kind of thing. ;-) But ONLY FOR THE DEVS, DAMMIT! >:-U
-// O_O
-//
-bool AlpineLoadFile(char * path)
-{
- uint8_t * buffer = NULL;
- jaguarROMSize = JaguarLoadROM(buffer, path);
-
- if (jaguarROMSize == 0)
- {
- // It's up to the GUI to deal with failure, not us. ;-)
- WriteLog("FILE: Could not load Alpine from file \"%s\"...\nAborting load!\n", path);
- return false;
- }
-
- jaguarMainROMCRC32 = crc32_calcCheckSum(buffer, jaguarROMSize);
- WriteLog("FILE: CRC is %08X\n", (unsigned int)jaguarMainROMCRC32);
- EepromInit();
-
- jaguarRunAddress = 0x802000;
-
- WriteLog("FILE: Setting up Alpine ROM with non-standard length... Run address: 00802000, length: %08X\n", jaguarROMSize);
-
- memset(jagMemSpace + 0x800000, 0xFF, 0x2000);
- memcpy(jagMemSpace + 0x802000, buffer, jaguarROMSize);
- delete[] buffer;
-
-// Maybe instead of this, we could try requiring the STUBULATOR ROM? Just a thought...
- // Try setting the vector to say, $1000 and putting an instruction there
- // that loops forever:
- // This kludge works! Yeah!
- SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)
- SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here
-
- return true;
-}
-
-
-//
-// Get the length of a (possibly) gzipped file
-//
-static int gzfilelength(gzFile gd)
-{
- int size = 0, length = 0;
- unsigned char buffer[0x10000];
-
- gzrewind(gd);
-
- do
- {
- // Read in chunks until EOF
- size = gzread(gd, buffer, 0x10000);
-
- if (size <= 0)
- break;
-
- length += size;
- }
- while (!gzeof(gd));
-
- gzrewind(gd);
- return length;
-}
-
-
-//
-// Compare extension to passed in filename. If equal, return true; otherwise false.
-//
-#if defined(_MSC_VER) || defined(__MINGW64__)|| defined(__MINGW32__) || defined(__CYGWIN__)
-static bool CheckExtension(const uint8_t * filename, const char * ext)
-#else
-static bool CheckExtension(const char * filename, const char * ext)
-#endif // _MSC_VER
-{
- // Sanity checking...
- if ((filename == NULL) || (ext == NULL))
- return false;
-
- const char * filenameExt = strrchr((const char *)filename, '.'); // Get the file's extension (if any)
-
- if (filenameExt == NULL)
- return false;
-
- return (strcasecmp(filenameExt, ext) == 0 ? true : false);
-}
-
-
-//
-// Get file from .ZIP
-// Returns the size of the file inside the .ZIP file that we're looking at
-// NOTE: If the thing we're looking for is found, it allocates it in the passed in buffer.
-// Which means we have to deallocate it later.
-//
-uint32_t GetFileFromZIP(const char * zipFile, FileType type, uint8_t * &buffer)
-{
-// NOTE: We could easily check for this by discarding anything that's larger than the RAM/ROM
-// size of the Jaguar console.
-#if defined(_MSC_VER)
-#pragma message("Warning: !!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!")
-#else
-#warning "!!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!"
-#endif // _MSC_VER
- const char ftStrings[5][32] = { "Software", "EEPROM", "Label", "Box Art", "Controller Overlay" };
-// ZIP * zip = openzip(0, 0, zipFile);
- FILE * zip = fopen(zipFile, "rb");
-
- if (zip == NULL)
- {
- WriteLog("FILE: Could not open file '%s'!\n", zipFile);
- return 0;
- }
-
-// zipent * ze;
- ZipFileEntry ze;
- bool found = false;
-
- // The order is here is important: If the file is found, we need to short-circuit the
- // readzip() call because otherwise, 'ze' will be pointing to the wrong file!
-// while (!found && readzip(zip))
- while (!found && GetZIPHeader(zip, ze))
- {
-// ze = &zip->ent;
-
- // Here we simply rely on the file extension to tell the truth, but we know
- // that extensions lie like sons-a-bitches. So this is naive, we need to do
- // something a little more robust to keep bad things from happening here.
-#if defined(_MSC_VER)
-#pragma message("Warning: !!! Checking for image by extension can be fooled !!!")
-#else
-#warning "!!! Checking for image by extension can be fooled !!!"
-#endif // _MSC_VER
- if ((type == FT_LABEL) && (CheckExtension(ze.filename, ".png") || CheckExtension(ze.filename, ".jpg") || CheckExtension(ze.filename, ".gif")))
- {
- found = true;
- WriteLog("FILE: Found image file '%s'.\n", ze.filename);
- }
-
- if ((type == FT_SOFTWARE) && (CheckExtension(ze.filename, ".j64")
- || CheckExtension(ze.filename, ".rom") || CheckExtension(ze.filename, ".abs")
- || CheckExtension(ze.filename, ".cof") || CheckExtension(ze.filename, ".coff")
- || CheckExtension(ze.filename, ".jag") || CheckExtension(ze.filename, ".elf")))
- {
- found = true;
- WriteLog("FILE: Found software file '%s'.\n", ze.filename);
- }
-
- if ((type == FT_EEPROM) && (CheckExtension(ze.filename, ".eep") || CheckExtension(ze.filename, ".eeprom")))
- {
- found = true;
- WriteLog("FILE: Found EEPROM file '%s'.\n", ze.filename);
- }
-
- if (!found)
- fseek(zip, ze.compressedSize, SEEK_CUR);
- }
-
- uint32_t fileSize = 0;
-
- if (found)
- {
- WriteLog("FILE: Uncompressing...");
-// Insert file size sanity check here...
- buffer = new uint8_t[ze.uncompressedSize];
-
-// if (readuncompresszip(zip, ze.compressedSize, buffer) == 0)
-// if (UncompressFileFromZIP(zip, ze.compressedSize, buffer) == 0)
- if (UncompressFileFromZIP(zip, ze, buffer) == 0)
- {
- fileSize = ze.uncompressedSize;
- WriteLog("success! (%u bytes)\n", fileSize);
- }
- else
- {
- delete[] buffer;
- buffer = NULL;
- WriteLog("FAILED!\n");
- }
- }
- else
- // Didn't find what we're looking for...
- WriteLog("FILE: Failed to find file of type %s...\n", ftStrings[type]);
-
-// closezip(zip);
- fclose(zip);
- return fileSize;
-}
-
-
-uint32_t GetFileDBIdentityFromZIP(const char * zipFile)
-{
- FILE * zip = fopen(zipFile, "rb");
-
- if (zip == NULL)
- {
- WriteLog("FILE: Could not open file '%s'!\n", zipFile);
- return 0;
- }
-
- ZipFileEntry ze;
-
- // Loop through all files in the zip file under consideration
- while (GetZIPHeader(zip, ze))
- {
- // & loop through all known CRC32s in our file DB to see if it's there!
- uint32_t index = 0;
-
- while (romList[index].crc32 != 0xFFFFFF)
- {
- if (romList[index].crc32 == ze.crc32)
- {
- fclose(zip);
- return index;
- }
-
- index++;
- }
-
- // We didn't find it, so skip the compressed data...
- fseek(zip, ze.compressedSize, SEEK_CUR);
- }
-
- fclose(zip);
- return -1;
-}
-
-
-bool FindFileInZIPWithCRC32(const char * zipFile, uint32_t crc)
-{
- FILE * zip = fopen(zipFile, "rb");
-
- if (zip == NULL)
- {
- WriteLog("FILE: Could not open file '%s'!\n", zipFile);
- return 0;
- }
-
- ZipFileEntry ze;
-
- // Loop through all files in the zip file under consideration
- while (GetZIPHeader(zip, ze))
- {
- if (ze.crc32 == crc)
- {
- fclose(zip);
- return true;
- }
-
- fseek(zip, ze.compressedSize, SEEK_CUR);
- }
-
- fclose(zip);
- return false;
-}
-
-
-//
-// Parse the file type based upon file size and/or headers.
-//
-uint32_t ParseFileType(uint8_t * buffer, uint32_t size)
-{
- // Check headers first...
-
- // ELF 32bits
- if (buffer[EI_CLASS] == ELFCLASS32)
- {
- if (((BigToLittleEndian16(((Elf32_Ehdr *)buffer)->e_machine) & 0xFF) == EM_68K) && (BigToLittleEndian16(((Elf32_Ehdr *)buffer)->e_type) == ET_EXEC) && (buffer[0] == ELFMAG0) && (buffer[1] == ELFMAG1) && (buffer[2] == ELFMAG2) && (buffer[3] == ELFMAG3))
- return JST_ELF32;
- }
-
- // ABS/COFF type 1
- if (buffer[0] == 0x60 && buffer[1] == 0x1B)
- return JST_ABS_TYPE1;
-
- // ABS/COFF type 2
- if (buffer[0] == 0x01 && buffer[1] == 0x50)
- return JST_ABS_TYPE2;
-
- // Jag Server & other old shite
- if (buffer[0] == 0x60 && buffer[1] == 0x1A)
- {
- if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')
- return JST_JAGSERVER;
- else
- return JST_WTFOMGBBQ;
- }
-
- // And if that fails, try file sizes...
-
- // If the file size is divisible by 1M, we probably have an regular ROM.
- // We can also check our CRC32 against the internal ROM database to be sure.
- // (We also check for the Memory Track cartridge size here as well...)
- if ((size % 1048576) == 0 || size == 131072)
- return JST_ROM;
-
- // If the file size + 8192 bytes is divisible by 1M, we probably have an
- // Alpine format ROM.
- if (((size + 8192) % 1048576) == 0)
- return JST_ALPINE;
-
- // Headerless crap
- return JST_NONE;
-}
-
-//
-// Check for universal header
-//
-bool HasUniversalHeader(uint8_t * rom, uint32_t romSize)
-{
- // Sanity check
- if (romSize < 8192)
- return false;
-
- for(int i=0; i<8192; i++)
- if (rom[i] != universalCartHeader[i])
- return false;
-
- return true;
-}
-
-#if 0
-// Misc. doco
-
-/*
-Stubulator ROM vectors...
-handler 001 at $00E00008
-handler 002 at $00E008DE
-handler 003 at $00E008E2
-handler 004 at $00E008E6
-handler 005 at $00E008EA
-handler 006 at $00E008EE
-handler 007 at $00E008F2
-handler 008 at $00E0054A
-handler 009 at $00E008FA
-handler 010 at $00000000
-handler 011 at $00000000
-handler 012 at $00E008FE
-handler 013 at $00E00902
-handler 014 at $00E00906
-handler 015 at $00E0090A
-handler 016 at $00E0090E
-handler 017 at $00E00912
-handler 018 at $00E00916
-handler 019 at $00E0091A
-handler 020 at $00E0091E
-handler 021 at $00E00922
-handler 022 at $00E00926
-handler 023 at $00E0092A
-handler 024 at $00E0092E
-handler 025 at $00E0107A
-handler 026 at $00E0107A
-handler 027 at $00E0107A
-handler 028 at $00E008DA
-handler 029 at $00E0107A
-handler 030 at $00E0107A
-handler 031 at $00E0107A
-handler 032 at $00000000
-
-Let's try setting up the illegal instruction vector for a stubulated jaguar...
-
- SET32(jaguar_mainRam, 0x08, 0x00E008DE);
- SET32(jaguar_mainRam, 0x0C, 0x00E008E2);
- SET32(jaguar_mainRam, 0x10, 0x00E008E6); // <-- Should be here (it is)...
- SET32(jaguar_mainRam, 0x14, 0x00E008EA);//*/
-
-/*
-ABS Format sleuthing (LBUGDEMO.ABS):
-
-000000 60 1B 00 00 05 0C 00 04 62 C0 00 00 04 28 00 00
-000010 12 A6 00 00 00 00 00 80 20 00 FF FF 00 80 25 0C
-000020 00 00 40 00
-
-DRI-format file detected...
-Text segment size = 0x0000050c bytes
-Data segment size = 0x000462c0 bytes
-BSS Segment size = 0x00000428 bytes
-Symbol Table size = 0x000012a6 bytes
-Absolute Address for text segment = 0x00802000
-Absolute Address for data segment = 0x0080250c
-Absolute Address for BSS segment = 0x00004000
-
-(CRZDEMO.ABS):
-000000 01 50 00 03 00 00 00 00 00 03 83 10 00 00 05 3b
-000010 00 1c 00 03 00 00 01 07 00 00 1d d0 00 03 64 98
-000020 00 06 8b 80 00 80 20 00 00 80 20 00 00 80 3d d0
-
-000030 2e 74 78 74 00 00 00 00 00 80 20 00 00 80 20 00 .txt (+36 bytes)
-000040 00 00 1d d0 00 00 00 a8 00 00 00 00 00 00 00 00
-000050 00 00 00 00 00 00 00 20
-000058 2e 64 74 61 00 00 00 00 00 80 3d d0 00 80 3d d0 .dta (+36 bytes)
-000068 00 03 64 98 00 00 1e 78 00 00 00 00 00 00 00 00
-000078 00 00 00 00 00 00 00 40
-000080 2e 62 73 73 00 00 00 00 00 00 50 00 00 00 50 00 .bss (+36 bytes)
-000090 00 06 8b 80 00 03 83 10 00 00 00 00 00 00 00 00
-0000a0 00 00 00 00 00 00 00 80
-
-Header size is $A8 bytes...
-
-BSD/COFF format file detected...
-3 sections specified
-Symbol Table offset = 230160 ($00038310)
-Symbol Table contains 1339 symbol entries ($0000053B)
-The additional header size is 28 bytes ($001C)
-Magic Number for RUN_HDR = 0x00000107
-Text Segment Size = 7632 ($00001DD0)
-Data Segment Size = 222360 ($00036498)
-BSS Segment Size = 428928 ($00068B80)
-Starting Address for executable = 0x00802000
-Start of Text Segment = 0x00802000
-Start of Data Segment = 0x00803dd0
-*/
-#endif
->>>>>>> parent of dfd8b1d... Delete file.cpp
HCoop / clinton / Virtual-Jaguar-Rx.git / commitdiff