//
// JAGUAR.CPP
//
-// by cal16
+// by cal2
// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
// Cleanups and endian wrongness amelioration by James L. Hammons
// Note: Endian wrongness probably stems from the MAME origins of this emu and
//
#include "jaguar.h"
-#include "m68kdasmAG.h"
-#include "crc32.h"
+//#include "m68kdasmAG.h"
-//#define LOG_UNMAPPED_MEMORY_ACCESSES
-//#define SOUND_OUTPUT
+#define CPU_DEBUG
+//Do this in makefile??? Yes! Could, but it's easier to define here...
+#define LOG_UNMAPPED_MEMORY_ACCESSES
-// Some handy macros to help converting native endian to big endian (jaguar native)
+// Private function prototypes
-#define SET32(r, a, v) r[a] = ((v) & 0xFF000000) >> 24, r[a+1] = ((v) & 0x00FF0000) >> 16, \
- r[a+2] = ((v) & 0x0000FF00) >> 8, r[a+3] = (v) & 0x000000FF
+unsigned jaguar_unknown_readbyte(unsigned address, uint32 who = UNKNOWN);
+unsigned jaguar_unknown_readword(unsigned address, uint32 who = UNKNOWN);
+void jaguar_unknown_writebyte(unsigned address, unsigned data, uint32 who = UNKNOWN);
+void jaguar_unknown_writeword(unsigned address, unsigned data, uint32 who = UNKNOWN);
+void M68K_show_context(void);
-//
-// Function Prototypes
-//
+// External variables
-unsigned jaguar_unknown_readbyte(unsigned address);
-unsigned jaguar_unknown_readword(unsigned address);
-void jaguar_unknown_writebyte(unsigned address, unsigned data);
-void jaguar_unknown_writeword(unsigned address, unsigned data);
+extern bool hardwareTypeNTSC; // Set to false for PAL
+// Memory debugging identifiers
-#ifdef SOUND_OUTPUT
-int dsp_enabled = 1;
-#else
-int dsp_enabled = 0;
-#endif
-uint32 jaguar_active_memory_dumps = 0;
-uint32 jaguar_use_bios = 0;
-#define JAGUAR_WIP_RELEASE
-#define JAGUAR_REAL_SPEED
+char * whoName[9] =
+ { "Unknown", "Jaguar", "DSP", "GPU", "TOM", "JERRY", "M68K", "Blitter", "OP" };
+// These values are overridden by command line switches...
-//////////////////////////////////////////////////////////////////////////////
-// Bios path
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-//static char *jaguar_bootRom_path="c:/jaguarEmu/newload.img";
-static char * jaguar_bootRom_path = "./bios/jagboot.rom";
-//static char *jaguar_bootRom_path="./bios/JagOS.bin";
-char * jaguar_eeproms_path = "./eeproms/";
+bool dsp_enabled = false;
+bool jaguar_use_bios = true; // Default is now to USE the BIOS
+uint32 jaguar_active_memory_dumps = 0;
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
uint32 jaguar_mainRom_crc32;
static uint32 m68k_cycles_per_scanline;
static uint32 dsp_cycles_per_scanline;
static uint32 jaguar_screen_scanlines;
-static uint8 * jaguar_mainRam = NULL;
-static uint8 * jaguar_bootRom = NULL;
-static uint8 * jaguar_mainRom = NULL;
-//////////////////////////////////////////////////////////////////////////////
+/*static*/ uint8 * jaguar_mainRam = NULL;
+/*static*/ uint8 * jaguar_bootRom = NULL;
+/*static*/ uint8 * jaguar_mainRom = NULL;
+//
+// Callback function to detect illegal instructions
+//
+void M68KInstructionHook(void)
+{
+ uint32 m68kPC = m68k_get_reg(NULL, M68K_REG_PC);
+
+/* static char buffer[2048];
+ m68k_disassemble(buffer, m68kPC, M68K_CPU_TYPE_68000);
+ WriteLog("%08X: %s \t\tD0=%08X, A0=%08X\n", m68kPC, buffer, m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_A0));//*/
+
+/* if (m68kPC == 0x803F16)
+ {
+ WriteLog("M68K: Registers found at $803F16:\n");
+ WriteLog("\t68K PC=%06X\n", m68k_get_reg(NULL, M68K_REG_PC));
+ for(int i=M68K_REG_D0; i<=M68K_REG_D7; i++)
+ WriteLog("\tD%i = %08X\n", i-M68K_REG_D0, m68k_get_reg(NULL, (m68k_register_t)i));
+ WriteLog("\n");
+ for(int i=M68K_REG_A0; i<=M68K_REG_A7; i++)
+ WriteLog("\tA%i = %08X\n", i-M68K_REG_A0, m68k_get_reg(NULL, (m68k_register_t)i));
+ }*/
+
+ if (!m68k_is_valid_instruction(JaguarReadWord(m68kPC), M68K_CPU_TYPE_68000))
+ {
+ WriteLog("\nM68K encountered an illegal instruction at %08X!!!\n\nAborting!\n", m68kPC);
+ uint32 topOfStack = m68k_get_reg(NULL, M68K_REG_A7);
+ WriteLog("M68K: Top of stack: %08X. Stack trace:\n", JaguarReadLong(topOfStack));
+ for(int i=0; i<10; i++)
+ WriteLog("%06X: %08X\n", topOfStack - (i * 4), JaguarReadLong(topOfStack - (i * 4)));
+ WriteLog("Jaguar: VBL interrupt is %s\n", ((tom_irq_enabled(IRQ_VBLANK)) && (jaguar_interrupt_handler_is_valid(64))) ? "enabled" : "disabled");
+ M68K_show_context();
+ log_done();
+ exit(0);
+ }
+}
+
//
// Musashi 68000 read/write/IRQ functions
//
{
int vector = M68K_INT_ACK_AUTOVECTOR;
- if (level = 7)
+ // The GPU/DSP/etc are probably *not* issuing an NMI, but it seems to work OK...
+
+ if (level == 7)
{
m68k_set_irq(0); // Clear the IRQ...
vector = 64; // Set user interrupt #0
return vector;
}
-//Do this in makefile???
-//#define LOG_UNMAPPED_MEMORY_ACCESSES 1
-
unsigned int m68k_read_memory_8(unsigned int address)
{
-//fprintf(log_get(), "[RM8] Addr: %08X\n", address);
+//WriteLog("[RM8] Addr: %08X\n", address);
unsigned int retVal = 0;
if ((address >= 0x000000) && (address <= 0x3FFFFF))
else if ((address >= 0xE00000) && (address <= 0xE3FFFF))
retVal = jaguar_bootRom[address - 0xE00000];
else if ((address >= 0xDFFF00) && (address <= 0xDFFFFF))
- retVal = cdrom_byte_read(address);
+ retVal = CDROMReadByte(address);
else if ((address >= 0xF00000) && (address <= 0xF0FFFF))
- retVal = tom_byte_read(address);
+ retVal = TOMReadByte(address, M68K);
else if ((address >= 0xF10000) && (address <= 0xF1FFFF))
- retVal = jerry_byte_read(address);
+ retVal = JERRYReadByte(address, M68K);
else
- retVal = jaguar_unknown_readbyte(address);
+ retVal = jaguar_unknown_readbyte(address, M68K);
return retVal;
}
+void gpu_dump_disassembly(void);
+void gpu_dump_registers(void);
+
unsigned int m68k_read_memory_16(unsigned int address)
{
-//fprintf(log_get(), "[RM16] Addr: %08X\n", address);
+//WriteLog("[RM16] Addr: %08X\n", address);
+/*if (m68k_get_reg(NULL, M68K_REG_PC) == 0x00005FBA)
+// for(int i=0; i<10000; i++)
+ WriteLog("[M68K] In routine #6!\n");//*/
+//if (m68k_get_reg(NULL, M68K_REG_PC) == 0x00006696) // GPU Program #4
+//if (m68k_get_reg(NULL, M68K_REG_PC) == 0x00005B3C) // GPU Program #2
+/*if (m68k_get_reg(NULL, M68K_REG_PC) == 0x00005BA8) // GPU Program #3
+{
+ WriteLog("[M68K] About to run GPU! (Addr:%08X, data:%04X)\n", address, TOMReadWord(address));
+ gpu_dump_registers();
+ gpu_dump_disassembly();
+// for(int i=0; i<10000; i++)
+// WriteLog("[M68K] About to run GPU!\n");
+}//*/
+//WriteLog("[WM8 PC=%08X] Addr: %08X, val: %02X\n", m68k_get_reg(NULL, M68K_REG_PC), address, value);
+/*if (m68k_get_reg(NULL, M68K_REG_PC) >= 0x00006696 && m68k_get_reg(NULL, M68K_REG_PC) <= 0x000066A8)
+{
+ if (address == 0x000066A0)
+ {
+ gpu_dump_registers();
+ gpu_dump_disassembly();
+ }
+ for(int i=0; i<10000; i++)
+ WriteLog("[M68K] About to run GPU! (Addr:%08X, data:%04X)\n", address, TOMReadWord(address));
+}//*/
unsigned int retVal = 0;
if ((address >= 0x000000) && (address <= 0x3FFFFE))
else if ((address >= 0xE00000) && (address <= 0xE3FFFE))
retVal = (jaguar_bootRom[address - 0xE00000] << 8) | jaguar_bootRom[address - 0xE00000 + 1];
else if ((address >= 0xDFFF00) && (address <= 0xDFFFFE))
- retVal = cdrom_word_read(address);
+ retVal = CDROMReadWord(address, M68K);
else if ((address >= 0xF00000) && (address <= 0xF0FFFE))
- retVal = tom_word_read(address);
+ retVal = TOMReadWord(address, M68K);
else if ((address >= 0xF10000) && (address <= 0xF1FFFE))
- retVal = jerry_word_read(address);
+ retVal = JERRYReadWord(address, M68K);
else
-//{
-//fprintf(log_get(), "[RM16] Unknown address: %08X\n", address);
- retVal = jaguar_unknown_readword(address);
-//}
+ retVal = jaguar_unknown_readword(address, M68K);
return retVal;
}
unsigned int m68k_read_memory_32(unsigned int address)
{
-//fprintf(log_get(), "--> [RM32]\n");
+//WriteLog("--> [RM32]\n");
return (m68k_read_memory_16(address) << 16) | m68k_read_memory_16(address + 2);
}
void m68k_write_memory_8(unsigned int address, unsigned int value)
{
-//fprintf(log_get(), "[WM8 PC=%08X] Addr: %08X, val: %02X\n", m68k_get_reg(NULL, M68K_REG_PC), address, value);
+//if ((address >= 0x1FF020 && address <= 0x1FF03F) || (address >= 0x1FF820 && address <= 0x1FF83F))
+// WriteLog("M68K: Writing %02X at %08X\n", value, address);
+//WriteLog("[WM8 PC=%08X] Addr: %08X, val: %02X\n", m68k_get_reg(NULL, M68K_REG_PC), address, value);
if ((address >= 0x000000) && (address <= 0x3FFFFF))
jaguar_mainRam[address] = value;
else if ((address >= 0xDFFF00) && (address <= 0xDFFFFF))
- cdrom_byte_write(address, value);
+ CDROMWriteByte(address, value, M68K);
else if ((address >= 0xF00000) && (address <= 0xF0FFFF))
- tom_byte_write(address, value);
+ TOMWriteByte(address, value, M68K);
else if ((address >= 0xF10000) && (address <= 0xF1FFFF))
- jerry_byte_write(address, value);
+ JERRYWriteByte(address, value, M68K);
else
- jaguar_unknown_writebyte(address, value);
+ jaguar_unknown_writebyte(address, value, M68K);
}
void m68k_write_memory_16(unsigned int address, unsigned int value)
{
-//fprintf(log_get(), "[WM16 PC=%08X] Addr: %08X, val: %04X\n", m68k_get_reg(NULL, M68K_REG_PC), address, value);
+//if ((address >= 0x1FF020 && address <= 0x1FF03F) || (address >= 0x1FF820 && address <= 0x1FF83F))
+// WriteLog("M68K: Writing %04X at %08X\n", value, address);
+//WriteLog("[WM16 PC=%08X] Addr: %08X, val: %04X\n", m68k_get_reg(NULL, M68K_REG_PC), address, value);
+//if (address >= 0xF02200 && address <= 0xF0229F)
+// WriteLog("M68K: Writing to blitter --> %04X at %08X\n", value, address);
+//if (address >= 0x0E75D0 && address <= 0x0E75E7)
+// WriteLog("M68K: Writing %04X at %08X, M68K PC=%08X\n", value, address, m68k_get_reg(NULL, M68K_REG_PC));
+/*extern uint32 totalFrames;
+extern bool suppressOutput;
+if (totalFrames >= 59)
+ suppressOutput = false;//*/
+/*if (address == 0xF02114)
+ WriteLog("M68K: Writing to GPU_CTRL (frame:%u)... [M68K PC:%08X]\n", totalFrames, m68k_get_reg(NULL, M68K_REG_PC));
+if (address == 0xF02110)
+ WriteLog("M68K: Writing to GPU_PC (frame:%u)... [M68K PC:%08X]\n", totalFrames, m68k_get_reg(NULL, M68K_REG_PC));//*/
+//if (address >= 0xF03B00 && address <= 0xF03DFF)
+// WriteLog("M68K: Writing %04X to %08X...\n", value, address);
+
if ((address >= 0x000000) && (address <= 0x3FFFFE))
{
- jaguar_mainRam[address] = value >> 8;
- jaguar_mainRam[address + 1] = value & 0xFF;
+/* jaguar_mainRam[address] = value >> 8;
+ jaguar_mainRam[address + 1] = value & 0xFF;*/
+ SET16(jaguar_mainRam, address, value);
}
else if ((address >= 0xDFFF00) && (address <= 0xDFFFFE))
- cdrom_word_write(address, value);
+ CDROMWriteWord(address, value, M68K);
else if ((address >= 0xF00000) && (address <= 0xF0FFFE))
- tom_word_write(address, value);
+ TOMWriteWord(address, value, M68K);
else if ((address >= 0xF10000) && (address <= 0xF1FFFE))
- jerry_word_write(address, value);
+ JERRYWriteWord(address, value, M68K);
else
- jaguar_unknown_writeword(address, value);
+ jaguar_unknown_writeword(address, value, M68K);
}
void m68k_write_memory_32(unsigned int address, unsigned int value)
{
-//fprintf(log_get(), "--> [WM32]\n");
+//WriteLog("--> [WM32]\n");
m68k_write_memory_16(address, value >> 16);
m68k_write_memory_16(address + 2, value & 0xFFFF);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-/*struct STARSCREAM_PROGRAMREGION *jaguar_programfetch;
-struct STARSCREAM_DATAREGION *jaguar_readbyte;
-struct STARSCREAM_DATAREGION *jaguar_readword;
-struct STARSCREAM_DATAREGION *jaguar_writebyte;
-struct STARSCREAM_DATAREGION *jaguar_writeword;
-UINT16 jaguar_regionsCount[6];*/
-
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
uint32 jaguar_get_handler(uint32 i)
{
-// return (jaguar_word_read(i<<2) << 16) | jaguar_word_read((i<<2) + 2);
- return (jaguar_word_read(i*4) << 16) | jaguar_word_read((i*4) + 2);
+ return JaguarReadLong(i * 4);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-static char romLoadDialog_filePath[1024];
-#ifndef __PORT__
-static char romLoadDialog_initialDirectory[1024];
-
-int jaguar_open_rom(HWND hWnd,char *title,char *filterString)
-{
- OPENFILENAME ofn;
-
-
- romLoadDialog_initialDirectory[0] = 0;
-
-
- romLoadDialog_filePath[0] = 0;
-
- ZeroMemory(&ofn, sizeof(OPENFILENAME));
- ofn.lStructSize = sizeof(OPENFILENAME);
- ofn.hwndOwner = hWnd;
- ofn.lpstrFile = romLoadDialog_filePath;
- ofn.nMaxFile = sizeof(romLoadDialog_filePath);
- ofn.lpstrFilter = filterString;
- ofn.nFilterIndex = 0;
- ofn.lpstrFileTitle = NULL;
- ofn.nMaxFileTitle = 0;
- ofn.lpstrInitialDir = (const char *)romLoadDialog_initialDirectory;
- ofn.lpstrTitle = title;
- ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
-
- if(GetOpenFileName(&ofn) == FALSE)
- {
- DWORD res = CommDlgExtendedError();
- SendMessage(hWnd, WM_MOVE, 0,0);
- return 0;
- }
-
-
- SendMessage(hWnd, WM_MOVE, 0,0);
- return 1;
-}
-#endif
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
uint32 jaguar_interrupt_handler_is_valid(uint32 i)
{
uint32 handler = jaguar_get_handler(i);
else
return 0;
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void s68000show_context(void)
+
+void M68K_show_context(void)
{
-// fprintf(log_get(),"\t68k PC=0x%.6x\n",s68000readPC());
- fprintf(log_get(),"\t68k PC=0x%.6x\n", m68k_get_reg(NULL, M68K_REG_PC));
-// for (int i=0;i<8;i++)
-// fprintf(log_get(),"\tD%i = 0x%.8x\n",i,s68000context.dreg[i]);
+ WriteLog("\t68K PC=%06X\n", m68k_get_reg(NULL, M68K_REG_PC));
for(int i=M68K_REG_D0; i<=M68K_REG_D7; i++)
- fprintf(log_get(), "\tD%i = 0x%.8x\n", i-M68K_REG_D0, m68k_get_reg(NULL, (m68k_register_t)i));
- fprintf(log_get(), "\n");
-// for (i=0;i<8;i++)
-// fprintf(log_get(),"\tA%i = 0x%.8x\n",i,s68000context.areg[i]);
+ WriteLog("\tD%i = %08X\n", i-M68K_REG_D0, m68k_get_reg(NULL, (m68k_register_t)i));
+ WriteLog("\n");
for(int i=M68K_REG_A0; i<=M68K_REG_A7; i++)
- fprintf(log_get(), "\tA%i = 0x%.8x\n", i-M68K_REG_A0, m68k_get_reg(NULL, (m68k_register_t)i));
+ WriteLog("\tA%i = %08X\n", i-M68K_REG_A0, m68k_get_reg(NULL, (m68k_register_t)i));
- fprintf(log_get(), "68k dasm\n");
+ WriteLog("68K disasm\n");
// jaguar_dasm(s68000readPC()-0x1000,0x20000);
-// jaguar_dasm(m68k_get_reg(NULL, M68K_REG_PC) - 0x1000, 0x20000);
jaguar_dasm(m68k_get_reg(NULL, M68K_REG_PC) - 0x80, 0x200);
- fprintf(log_get(), "..................\n");
+// jaguar_dasm(0x5000, 0x14414);
+ WriteLog("..................\n");
if (tom_irq_enabled(IRQ_VBLANK))
{
- fprintf(log_get(), "vblank int: enabled\n");
+ WriteLog("vblank int: enabled\n");
jaguar_dasm(jaguar_get_handler(64), 0x200);
}
else
- fprintf(log_get(), "vblank int: disabled\n");
- fprintf(log_get(), "..................\n");
+ WriteLog("vblank int: disabled\n");
+
+ WriteLog("..................\n");
for(int i=0; i<256; i++)
- fprintf(log_get(), "handler %03i at $%08X\n", i, jaguar_get_handler(i));
+ WriteLog("handler %03i at $%08X\n", i, (unsigned int)jaguar_get_handler(i));
}
-// Starscream crap ripped out...
-
//
// Unknown read/write byte/word routines
//
-void jaguar_unknown_writebyte(unsigned address, unsigned data)
+void jaguar_unknown_writebyte(unsigned address, unsigned data, uint32 who/*=UNKNOWN*/)
{
#ifdef LOG_UNMAPPED_MEMORY_ACCESSES
- fprintf(log_get(), "jaguar: unknown byte %02X write at %08X (PC=%06X)\n", data, address, m68k_get_reg(NULL, M68K_REG_PC));
+ WriteLog("Jaguar: Unknown byte %02X written at %08X by %s (M68K PC=%06X)\n", data, address, whoName[who], m68k_get_reg(NULL, M68K_REG_PC));
+ extern bool finished;
+ finished = true;
+ extern bool doDSPDis;
+ if (who == DSP)
+ doDSPDis = true;
#endif
}
-void jaguar_unknown_writeword(unsigned address, unsigned data)
+void jaguar_unknown_writeword(unsigned address, unsigned data, uint32 who/*=UNKNOWN*/)
{
#ifdef LOG_UNMAPPED_MEMORY_ACCESSES
- fprintf(log_get(), "jaguar: unknown word %04X write at %08X (PC=%06X)\n", data, address, m68k_get_reg(NULL, M68K_REG_PC));
+ WriteLog("Jaguar: Unknown word %04X written at %08X by %s (M68K PC=%06X)\n", data, address, whoName[who], m68k_get_reg(NULL, M68K_REG_PC));
+ extern bool finished;
+ finished = true;
+ extern bool doDSPDis;
+ if (who == DSP)
+ doDSPDis = true;
#endif
}
-unsigned jaguar_unknown_readbyte(unsigned address)
+unsigned jaguar_unknown_readbyte(unsigned address, uint32 who/*=UNKNOWN*/)
{
#ifdef LOG_UNMAPPED_MEMORY_ACCESSES
- fprintf(log_get(), "jaguar: unknown byte read at %08X (PC=%06X)\n", address, m68k_get_reg(NULL, M68K_REG_PC));
+ WriteLog("Jaguar: Unknown byte read at %08X by %s (M68K PC=%06X)\n", address, whoName[who], m68k_get_reg(NULL, M68K_REG_PC));
+ extern bool finished;
+ finished = true;
+ extern bool doDSPDis;
+ if (who == DSP)
+ doDSPDis = true;
#endif
return 0xFF;
}
-unsigned jaguar_unknown_readword(unsigned address)
+unsigned jaguar_unknown_readword(unsigned address, uint32 who/*=UNKNOWN*/)
{
#ifdef LOG_UNMAPPED_MEMORY_ACCESSES
- fprintf(log_get(), "jaguar: unknown word read at %08X (PC=%06X)\n", address, m68k_get_reg(NULL, M68K_REG_PC));
+ WriteLog("Jaguar: Unknown word read at %08X by %s (M68K PC=%06X)\n", address, whoName[who], m68k_get_reg(NULL, M68K_REG_PC));
+ extern bool finished;
+ finished = true;
+ extern bool doDSPDis;
+ if (who == DSP)
+ doDSPDis = true;
#endif
return 0xFFFF;
}
//
-// Jaguar ROM loading
+// Disassemble M68K instructions at the given offset
//
-uint8 * jaguar_rom_load(char * path, uint32 * romSize)
+unsigned int m68k_read_disassembler_8(unsigned int address)
{
- uint8 * rom = NULL;
- fpos_t pos;
- int x;
- __int64 filepos;
-
- fprintf(log_get(), "jaguar: loading %s...", path);
- FILE * fp = fopen(path, "rb");
- if (fp == NULL)
- {
- fprintf(log_get(), "failed\n");
- log_done();
- exit(0);
- return NULL;
- }
- fseek(fp, 0, SEEK_END);
-
- /* Added by SDLEMU (http://sdlemu.ngemu.com) */
- /* Added for GCC UNIX compatibility */
- #ifdef __GCCUNIX__
- fgetpos(fp, (fpos_t *)&filepos);
- #else
- fgetpos(fp, &filepos);
- #endif
-
- *romSize = (int)filepos;
- fseek(fp, 0, SEEK_SET);
- rom = (uint8 *)malloc(*romSize);
- fread(rom, 1, *romSize, fp);
- fclose(fp);
- fprintf(log_get(), "ok (%i bytes)\n", *romSize);
-// jaguar_mainRom_crc32=crc32_calcCheckSum(jaguar_mainRom,*romSize);
-// fprintf(log_get(),"crc: 0x%.8x\n",jaguar_mainRom_crc32);
- return rom;
+ return m68k_read_memory_8(address);
}
-//
-// Load a ROM at a specific address
-//
-
-void jaguar_rom_load_to(uint8 * rom, char * path, uint32 * romSize)
+unsigned int m68k_read_disassembler_16(unsigned int address)
{
- __int64 filepos;
-
- fprintf(log_get(), "jaguar: loading %s...", path);
- FILE * fp = fopen(path, "rb");
- if (fp == NULL)
- {
- fprintf(log_get(), "failed\n");
- log_done();
- exit(0);
- return;
- }
- fseek(fp, 0, SEEK_END);
-
- /* Added by SDLEMU (http://sdlemu.ngemu.com) */
- /* Added for GCC UNIX compatibility */
- #ifdef __GCCUNIX__
- fgetpos(fp, (fpos_t *)&filepos);
- #else
- fgetpos(fp, &filepos);
- #endif
-
- *romSize = (int)filepos;
- fseek(fp, 0, SEEK_SET);
- fread(rom, 1, *romSize, fp);
- fclose(fp);
- fprintf(log_get(), "ok (%i bytes)\n", *romSize);
+ return m68k_read_memory_16(address);
}
-//
-// Byte swap a region of memory
-//
-
-void jaguar_byte_swap(uint8 * rom, uint32 size)
+unsigned int m68k_read_disassembler_32(unsigned int address)
{
- while (size > 0)
- {
- uint8 tmp = rom[0];
- rom[0] = rom[1];
- rom[1] = tmp;
- rom += 2;
- size -= 2;
- }
+ return m68k_read_memory_32(address);
}
-//
-// Disassemble instructions at the given offset
-//
-
void jaguar_dasm(uint32 offset, uint32 qt)
{
- static char buffer[2048], mem[64];
+#ifdef CPU_DEBUG
+ static char buffer[2048];//, mem[64];
int pc = offset, oldpc;
- for(int i=0; i<qt; i++)
+ for(uint32 i=0; i<qt; i++)
{
- oldpc = pc;
+/* oldpc = pc;
for(int j=0; j<64; j++)
-// mem[j^0x01] = jaguar_byte_read(pc + j);
mem[j^0x01] = jaguar_byte_read(pc + j);
pc += Dasm68000((char *)mem, buffer, 0);
-#ifdef CPU_DEBUG
- fprintf(log_get(), "%08X: %s\n", oldpc, buffer);
-#endif
- }
-}
-
-//
-// Jaguar cartridge ROM loading
-//
-
-void jaguar_load_cart(char * path, uint8 * mem, uint32 offs, uint32 boot, uint32 header)
-{
- uint32 romsize;
-
- jaguar_rom_load_to(mem+offs-header, path, &romsize);
-// Is there a need for this? The answer is !!! NO !!!
-// jaguar_byte_swap(mem+offs, romsize);
- jaguar_mainRom_crc32 = crc32_calcCheckSum(jaguar_mainRom, romsize);
- fprintf(log_get(), "crc: %08X\n", jaguar_mainRom_crc32);
-
-// Brain dead endian dependent crap
-// *((uint32 *)&jaguar_mainRam[4]) = boot;
-// This is how it *should* have been done...
- SET32(jaguar_mainRam, 4, boot);
-// Same as above...
-// jaguar_dasm((boot>>16) | (boot<<16), 32*4);
- jaguar_dasm(boot, 32*4);
-}
-
-//
-// Jaguar initialization
-//
-
-#ifdef __PORT__
-void jaguar_init(const char * filename)
-#else
-void jaguar_init(void)
-#endif
-{
- uint32 romsize;
-
- jaguar_screen_scanlines = 525; // PAL screen size
- m68k_cycles_per_scanline = 13300000 / (jaguar_screen_scanlines * 60);
- gpu_cycles_per_scanline = (26591000 / 4) / (jaguar_screen_scanlines * 60);
- dsp_cycles_per_scanline = (26591000 / 4) / (jaguar_screen_scanlines * 60);
-
- memory_malloc_secure((void**)&jaguar_mainRam, 0x400000, "Jaguar 68k cpu ram");
- memory_malloc_secure((void**)&jaguar_bootRom, 0x040000, "Jaguar 68k cpu boot rom");
- memory_malloc_secure((void**)&jaguar_mainRom, 0x600000, "Jaguar 68k cpu rom");
- memset(jaguar_mainRam, 0x00, 0x400000);
-
- jaguar_rom_load_to(jaguar_bootRom, jaguar_bootRom_path, &romsize);
-// No need to do this anymore, since Starcrap is gone!
-// jaguar_byte_swap(jaguar_bootRom, romsize);
- memcpy(jaguar_mainRam, jaguar_bootRom, 8);
-// More braindead endian dependent crap
-//WAS: *((uint32 *)&jaguar_mainRam[0]) = 0x00000020;
- SET32(jaguar_mainRam, 0, 0x00200000);
-
-#ifdef JAGUAR_WIP_RELEASE
-#ifdef __PORT__
- strcpy(romLoadDialog_filePath, filename);
-#else
- jaguar_open_rom(GetForegroundWindow(), "Load", "Jaguar roms (*.JAG)\0*.JAG\0\0");
-#endif
-//WAS: jaguar_load_cart(romLoadDialog_filePath, jaguar_mainRom, 0x0000, 0x20000080, 0);
- jaguar_load_cart(romLoadDialog_filePath, jaguar_mainRom, 0x0000, 0x00802000, 0);
- if ((jaguar_mainRom_crc32 == 0x3966698f) || (jaguar_mainRom_crc32 == 0x5e705756)
- || (jaguar_mainRom_crc32 == 0x2630cbc4) || (jaguar_mainRom_crc32 == 0xd46437e8)
- || (jaguar_mainRom_crc32 == 0x2630cbc4))
- dsp_enabled = 1;
-
- if ((jaguar_mainRom_crc32 == 0x6e90989f) || (jaguar_mainRom_crc32 == 0xfc8f0dcd)
- || (jaguar_mainRom_crc32 == 0x2a512a83) || (jaguar_mainRom_crc32 == 0x41307601)
- || (jaguar_mainRom_crc32 == 0x3c7bfda8) || (jaguar_mainRom_crc32 == 0x5e705756))
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
-
- if (jaguar_mainRom_crc32 == 0x7ae20823)
- {
- dsp_enabled = 1;
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- dsp_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- }
- if (jaguar_mainRom_crc32 == 0xe21d0e2f)
- {
- dsp_enabled = 1;
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- dsp_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- }
- if (jaguar_mainRom_crc32 == 0x66f8914c)
- {
- gpu_cycles_per_scanline = (26591000 / 1) /(jaguar_screen_scanlines * 60);
- }
- if (jaguar_mainRom_crc32 == 0x5a5b9c68)
- {
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- }
- if (jaguar_mainRom_crc32 == 0xdcb0197a)
- {
- dsp_enabled = 0; // dsp not needed
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- //dsp_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
- if ((jaguar_mainRom_crc32 == 0x3966698f) || (jaguar_mainRom_crc32 == 0xe21d0e2f))
- dsp_enabled = 1;
- if (jaguar_mainRom_crc32 == 0x5e705756)
- {
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- dsp_enabled = 1;
- }
- if (jaguar_mainRom_crc32 == 0x2630cbc4)
- {
- // ultra vortek
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- dsp_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- dsp_enabled = 1;
- }
- if ((jaguar_mainRom_crc32 == 0xd46437e8) || (jaguar_mainRom_crc32 == 0xba74c3ed))
- {
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- dsp_enabled = 1;
- }
- if (jaguar_mainRom_crc32 == 0x6e90989f)
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
-
- if (jaguar_mainRom_crc32 == 0x41307601)
- {
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- }
-
- if (jaguar_mainRom_crc32 == 0x8483392b)
- {
- dsp_enabled = 1;
- }
-
-#else // #ifdef JAGUAR_WIP_RELEASE
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/flashback.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Pinball Fantasies.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/alien vs predator (1994).jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/cannon fodder (1995) (computer west).jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/double dragon v (1995) (williams).jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Dragon - The Bruce Lee Story.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Syndicate.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Theme Park.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Brutal Sports Football.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/International Sensible Soccer.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Defender 2000.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Fever Pitch Soccer.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Rayman.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Tempest 2000.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/zool 2 (1994).jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Bubsy - Fractured Furry Tails.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Raiden.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Dino Olympics.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/I-War.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Attack of the Mutant Penguins.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Cybermorph.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Troy Aikman NFL Football (1995) (Williams).jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Power Drive Rally (1995) (TWI).jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Zoop! (1996).jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Missile Command 3D.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Hover Strike.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/worms.bin",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Atari Kart.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/native.bin",jaguar_mainRam,0x5000, 0x50000000,0x00);
-
- if (jaguar_mainRom_crc32==0xe21d0e2f)
- {
- dsp_enabled=1;
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- dsp_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
- if (jaguar_mainRom_crc32==0x66f8914c)
- {
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
- if (jaguar_mainRom_crc32==0x5a5b9c68)
- {
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Super Cross 3D.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0xdcb0197a)
- {
- dsp_enabled=0; // dsp not needed
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- //dsp_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/wolfenstein 3d (1994).jag",jaguar_mainRom,0x0000, 0x20000080,0);
- if ((jaguar_mainRom_crc32==0x3966698f)||(jaguar_mainRom_crc32==0xe21d0e2f))
- dsp_enabled=1;
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/NBA JAM.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Doom - Evil Unleashed.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x5e705756)
- {
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- dsp_enabled=1;
- }
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Ultra Vortek.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x2630cbc4)
- {
- // ultra vortek
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- dsp_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- dsp_enabled=1;
- }
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/fflbeta.rom",jaguar_mainRom,0x0000, 0x20000080,0);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Fight for Your Life.jag",jaguar_mainRom,0x0000, 0x20000080,0);
- if ((jaguar_mainRom_crc32==0xd46437e8)||(jaguar_mainRom_crc32==0xba74c3ed))
- {
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
-// dsp_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- dsp_enabled=1;
- }
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Pitfall - The Mayan Adventure.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x6e90989f)
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
-
-// missing some sprites
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Crescent Galaxy.jag",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x41307601)
- {
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
-
-// missing vertical bar shades
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Phase Zero (2000) (PD).rom",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x8483392b)
- {
- dsp_enabled=1;
- }
-// cpu/dsp/gpu synchronization problems
-
-
-// locks up during the game
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Club Drive.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-
-// no parallax floor, locks up at the start of the game
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Kasumi Ninja.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-
-// displaying the sound control dialog. no way to exit from it
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Checkered Flag.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
-
-// no 3d
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Iron Soldier.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-
-// locks up at the start of the game
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Super Burnout.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x20ae75f4)
- {
- dsp_enabled=1;
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- dsp_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
-// locks up at the start of the game
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Val D'Isere Skiing & Snowboarding (1994).jag",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x4664ebd1)
- {
- dsp_enabled=1;
- }
-
-// fonctionne avec le gpu et le dsp activés et gpu à frequence nominale, et dsp à 1/4 de la frequence nominale
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/white men can't jump (1995).jag",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x7ae20823)
- {
- dsp_enabled=1;
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- }
-// not working at all
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/Flip Out.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x6f57dcd2)
- {
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- dsp_enabled=0;
-
- }
-
- jaguar_load_cart("C:/ftp/jaguar/roms/roms/Ruiner.JAG",jaguar_mainRom,0x0000, 0x20000080,0);
- if (jaguar_mainRom_crc32==0x6a7c7430)
- {
- dsp_enabled=1;
- }
-
- if (jaguar_mainRom_crc32==0x2f032271)
- {
- dsp_enabled=1;
- dsp_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
- gpu_cycles_per_scanline=(26591000/1) /((jaguar_screen_scanlines)*60);
+ WriteLog("%08X: %s\n", oldpc, buffer);//*/
+ oldpc = pc;
+ pc += m68k_disassemble(buffer, pc, M68K_CPU_TYPE_68000);
+ WriteLog("%08X: %s\n", oldpc, buffer);//*/
}
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/tetris.bin",jaguar_mainRam,0x4fe4, 0x50000000,0x00);
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/painter.bin",jaguar_mainRam,0xffe4, 0x00000001,0x00);
-// jaguar_load_cart("./roms/jagcd.rom",jaguar_mainRom,0x0000, 0x20000080,0);
-
-// jaguar_load_cart("cart.jag",jaguar_mainRom,0x0000, 0x20000080,0);
-
-
-// cd_bios_boot("C:\\ftp\\jaguar\\cd\\Brain Dead 13.cdi");
-// cd_bios_boot("C:\\ftp\\jaguar\\cd\\baldies.cdi");
-// cd_bios_boot("C:\\ftp\\jaguar\\cd\\mystdemo.cdi");
-// cd_bios_boot("C:\\ftp\\jaguar\\cd\\battlemorph.cdi");
-// cd_bios_boot("C:\\ftp\\jaguar\\cd\\primalrage.cdi");
-// cd_bios_boot("C:\\ftp\\jaguar\\cd\\Dragons Lair.cdi");
-
-// jaguar_load_cart("C:/ftp/jaguar/roms/roms/raw.jag",jaguar_mainRam,0x4000, 0x40000000,0x00);
-#endif // #ifdef JAGUAR_WIP_RELEASE
-
-#ifdef JAGUAR_REAL_SPEED
- gpu_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
- dsp_cycles_per_scanline = (26591000 / 1) / (jaguar_screen_scanlines * 60);
-#endif
-#ifdef SOUND_OUTPUT
- ws_audio_init();
#endif
- if (jaguar_use_bios)
- {
- memcpy(jaguar_mainRam, jaguar_bootRom, 8);
- *((uint32 *)&jaguar_mainRam[0]) = 0x00000020;
- }
-
-// s68000init();
- m68k_set_cpu_type(M68K_CPU_TYPE_68000);
- gpu_init();
- dsp_init();
- tom_init();
- jerry_init();
- cdrom_init();
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-unsigned jaguar_byte_read(unsigned int offset)
+
+uint8 JaguarReadByte(uint32 offset, uint32 who/*=UNKNOWN*/)
{
uint8 data = 0x00;
offset &= 0xFFFFFF;
if (offset < 0x400000)
-// data = (jaguar_mainRam[(offset^0x01) & 0x3FFFFF]);
- data = (jaguar_mainRam[offset & 0x3FFFFF]);
+ data = jaguar_mainRam[offset & 0x3FFFFF];
else if ((offset >= 0x800000) && (offset < 0xC00000))
-// data = (jaguar_mainRom[(offset^0x01)-0x800000]);
- data = (jaguar_mainRom[offset - 0x800000]);
- else if ((offset >= 0xDFFF00) && (offset < 0xDFFF00))
- data = cdrom_byte_read(offset);
+ data = jaguar_mainRom[offset - 0x800000];
+ else if ((offset >= 0xDFFF00) && (offset <= 0xDFFFFF))
+ data = CDROMReadByte(offset, who);
else if ((offset >= 0xE00000) && (offset < 0xE40000))
-// data = (jaguar_bootRom[(offset^0x01) & 0x3FFFF]);
- data = (jaguar_bootRom[offset & 0x3FFFF]);
+ data = jaguar_bootRom[offset & 0x3FFFF];
else if ((offset >= 0xF00000) && (offset < 0xF10000))
- data = (tom_byte_read(offset));
+ data = TOMReadByte(offset, who);
else if ((offset >= 0xF10000) && (offset < 0xF20000))
- data = (jerry_byte_read(offset));
+ data = JERRYReadByte(offset, who);
else
- data = jaguar_unknown_readbyte(offset);
+ data = jaguar_unknown_readbyte(offset, who);
return data;
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-unsigned jaguar_word_read(unsigned int offset)
+
+uint16 JaguarReadWord(uint32 offset, uint32 who/*=UNKNOWN*/)
{
offset &= 0xFFFFFF;
- if (offset < 0x400000)
+ if (offset <= 0x3FFFFE)
{
-// return (jaguar_mainRam[(offset+1) & 0x3FFFFF] << 8) | jaguar_mainRam[(offset+0) & 0x3FFFFF];
return (jaguar_mainRam[(offset+0) & 0x3FFFFF] << 8) | jaguar_mainRam[(offset+1) & 0x3FFFFF];
}
- else if ((offset >= 0x800000) && (offset < 0xC00000))
+ else if ((offset >= 0x800000) && (offset <= 0xBFFFFE))
{
offset -= 0x800000;
-// return (jaguar_mainRom[offset+1] << 8) | jaguar_mainRom[offset+0];
return (jaguar_mainRom[offset+0] << 8) | jaguar_mainRom[offset+1];
}
- else if ((offset >= 0xDFFF00) && (offset < 0xDFFF00))
- return cdrom_word_read(offset);
- else if ((offset >= 0xE00000) && (offset < 0xE40000))
- return *((uint16 *)&jaguar_bootRom[offset & 0x3FFFF]);
- else if ((offset >= 0xF00000) && (offset < 0xF10000))
- return tom_word_read(offset);
- else if ((offset >= 0xF10000) && (offset < 0xF20000))
- return jerry_word_read(offset);
-
- return jaguar_unknown_readword(offset);
+// else if ((offset >= 0xDFFF00) && (offset < 0xDFFF00))
+ else if ((offset >= 0xDFFF00) && (offset <= 0xDFFFFE))
+ return CDROMReadWord(offset, who);
+ else if ((offset >= 0xE00000) && (offset <= 0xE3FFFE))
+ return (jaguar_bootRom[(offset+0) & 0x3FFFF] << 8) | jaguar_bootRom[(offset+1) & 0x3FFFF];
+ else if ((offset >= 0xF00000) && (offset <= 0xF0FFFE))
+ return TOMReadWord(offset, who);
+ else if ((offset >= 0xF10000) && (offset <= 0xF1FFFE))
+ return JERRYReadWord(offset, who);
+
+ return jaguar_unknown_readword(offset, who);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void jaguar_byte_write(unsigned offset, unsigned data)
+
+void JaguarWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
{
offset &= 0xFFFFFF;
if (offset < 0x400000)
{
-// jaguar_mainRam[(offset^0x01) & 0x3FFFFF] = data;
jaguar_mainRam[offset & 0x3FFFFF] = data;
return;
}
- else if ((offset >= 0xDFFF00) && (offset < 0xDFFF00))
+ else if ((offset >= 0xDFFF00) && (offset <= 0xDFFFFF))
{
- cdrom_byte_write(offset, data);
+ CDROMWriteByte(offset, data, who);
return;
}
- else if ((offset >= 0xF00000) && (offset < 0xF10000))
+ else if ((offset >= 0xF00000) && (offset <= 0xF0FFFF))
{
- tom_byte_write(offset, data);
+ TOMWriteByte(offset, data, who);
return;
}
- else if ((offset >= 0xF10000) && (offset < 0xF20000))
+ else if ((offset >= 0xF10000) && (offset <= 0xF1FFFF))
{
- jerry_byte_write(offset, data);
+ JERRYWriteByte(offset, data, who);
return;
}
- jaguar_unknown_writebyte(offset, data);
+ jaguar_unknown_writebyte(offset, data, who);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void jaguar_word_write(unsigned offset, unsigned data)
+
+void JaguarWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
{
+//TEMP--Mirror of F03000? Yes, but only 32-bit CPUs can do it (i.e., NOT the 68K!)
+//if (offset >= 0xF0B000 && offset <= 0xF0BFFF)
+//WriteLog("[JWW16] --> Possible GPU RAM mirror access! [%08X]", offset);
+//if ((offset >= 0x1FF020 && offset <= 0x1FF03F) || (offset >= 0x1FF820 && offset <= 0x1FF83F))
+// WriteLog("JagWW: Writing %04X at %08X\n", data, offset);
offset &= 0xFFFFFF;
- if (offset < 0x400000)
+ if (offset <= 0x3FFFFE)
{
-// jaguar_mainRam[(offset+0) & 0x3FFFFF] = data & 0xFF;
-// jaguar_mainRam[(offset+1) & 0x3FFFFF] = (data>>8) & 0xFF;
jaguar_mainRam[(offset+0) & 0x3FFFFF] = (data>>8) & 0xFF;
jaguar_mainRam[(offset+1) & 0x3FFFFF] = data & 0xFF;
return;
}
- else if ((offset >= 0xDFFF00) && (offset < 0xDFFFFF))
+ else if ((offset >= 0xDFFF00) && (offset <= 0xDFFFFE))
{
- cdrom_word_write(offset, data);
+ CDROMWriteWord(offset, data, who);
return;
}
- else if ((offset >= 0xF00000) && (offset < 0xF10000))
+ else if ((offset >= 0xF00000) && (offset <= 0xF0FFFE))
{
- tom_word_write(offset, data);
+ TOMWriteWord(offset, data, who);
return;
}
- else if ((offset >= 0xF10000) && (offset < 0xF20000))
+ else if ((offset >= 0xF10000) && (offset <= 0xF1FFFE))
{
- jerry_word_write(offset, data);
+ JERRYWriteWord(offset, data, who);
return;
}
- jaguar_unknown_writeword(offset, data);
+ jaguar_unknown_writeword(offset, data, who);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-unsigned jaguar_long_read(unsigned int offset)
+
+// We really should re-do this so that it does *real* 32-bit access... !!! FIX !!!
+uint32 JaguarReadLong(uint32 offset, uint32 who/*=UNKNOWN*/)
{
-/* uint32 data = jaguar_word_read(offset);
- data = (data<<16) | jaguar_word_read(offset+2);
- return data;*/
- return (jaguar_word_read(offset) << 16) | jaguar_word_read(offset+2);
+ return (JaguarReadWord(offset, who) << 16) | JaguarReadWord(offset+2, who);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void jaguar_long_write(unsigned offset, unsigned data)
+
+// We really should re-do this so that it does *real* 32-bit access... !!! FIX !!!
+void JaguarWriteLong(uint32 offset, uint32 data, uint32 who/*=UNKNOWN*/)
{
- jaguar_word_write(offset, data >> 16);
- jaguar_word_write(offset+2, data & 0xFFFF);
+ JaguarWriteWord(offset, data >> 16, who);
+ JaguarWriteWord(offset+2, data & 0xFFFF, who);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
//
+// Jaguar console initialization
//
-//////////////////////////////////////////////////////////////////////////////
+void jaguar_init(void)
+{
+ memory_malloc_secure((void **)&jaguar_mainRam, 0x400000, "Jaguar 68K CPU RAM");
+ memory_malloc_secure((void **)&jaguar_bootRom, 0x040000, "Jaguar 68K CPU BIOS ROM");
+ memory_malloc_secure((void **)&jaguar_mainRom, 0x600000, "Jaguar 68K CPU ROM");
+ memset(jaguar_mainRam, 0x00, 0x400000);
+// memset(jaguar_mainRom, 0xFF, 0x200000); // & set it to all Fs...
+ memset(jaguar_mainRom, 0x00, 0x200000); // & set it to all 0s...
+
+// cd_bios_boot("C:\\ftp\\jaguar\\cd\\Brain Dead 13.cdi");
+// cd_bios_boot("C:\\ftp\\jaguar\\cd\\baldies.cdi");
+// cd_bios_boot("C:\\ftp\\jaguar\\cd\\mystdemo.cdi");
+// cd_bios_boot("C:\\ftp\\jaguar\\cd\\battlemorph.cdi");
+// cd_bios_boot("C:\\ftp\\jaguar\\cd\\primalrage.cdi");
+// cd_bios_boot("C:\\ftp\\jaguar\\cd\\Dragons Lair.cdi");
+
+ // Should these be hardwired or read from VP?
+ jaguar_screen_scanlines = (hardwareTypeNTSC ? 524 : 624);
+//Should the divisor be 50 for PAL??? Let's try it!
+ m68k_cycles_per_scanline = (hardwareTypeNTSC ? M68K_CLOCK_RATE_NTSC : M68K_CLOCK_RATE_PAL) / (jaguar_screen_scanlines * (hardwareTypeNTSC ? 60 : 50));
+ gpu_cycles_per_scanline = dsp_cycles_per_scanline
+ = (hardwareTypeNTSC ? RISC_CLOCK_RATE_NTSC : RISC_CLOCK_RATE_PAL) / (jaguar_screen_scanlines * (hardwareTypeNTSC ? 60 : 50));
+
+//#ifdef SOUND_OUTPUT
+// ws_audio_init();
+//#endif
+
+ m68k_set_cpu_type(M68K_CPU_TYPE_68000);
+ gpu_init();
+ DSPInit();
+ tom_init();
+ jerry_init();
+ cdrom_init();
+}
+
void jaguar_done(void)
{
- fprintf(log_get(), "jaguar: top of stack: %08X\n", jaguar_long_read(0x001FFFF8));
-// fprintf(log_get(),"jaguar: cd bios version 0x%.4x\n",jaguar_word_read(0x3004));
-// fprintf(log_get(),"jaguar: vbl interrupt is %s\n",((tom_irq_enabled(IRQ_VBLANK))&&(jaguar_interrupt_handler_is_valid(64)))?"enabled":"disabled");
- s68000show_context();
-#ifdef SOUND_OUTPUT
- ws_audio_done();
-#endif
+//#ifdef CPU_DEBUG
+// for(int i=M68K_REG_A0; i<=M68K_REG_A7; i++)
+// WriteLog("\tA%i = 0x%.8x\n", i-M68K_REG_A0, m68k_get_reg(NULL, (m68k_register_t)i));
+ int32 topOfStack = m68k_get_reg(NULL, M68K_REG_A7);
+ WriteLog("M68K: Top of stack: %08X. Stack trace:\n", JaguarReadLong(topOfStack));
+ for(int i=-2; i<9; i++)
+ WriteLog("%06X: %08X\n", topOfStack + (i * 4), JaguarReadLong(topOfStack + (i * 4)));
+
+/* WriteLog("\nM68000 disassembly at $802288...\n");
+ jaguar_dasm(0x802288, 3);
+ WriteLog("\nM68000 disassembly at $802200...\n");
+ jaguar_dasm(0x802200, 500);
+ WriteLog("\nM68000 disassembly at $802518...\n");
+ jaguar_dasm(0x802518, 100);//*/
+
+/* WriteLog("\n\nM68000 disassembly at $803F00 (look @ $803F2A)...\n");
+ jaguar_dasm(0x803F00, 500);
+ WriteLog("\n");//*/
+
+/* WriteLog("\n\nM68000 disassembly at $802B00 (look @ $802B5E)...\n");
+ jaguar_dasm(0x802B00, 500);
+ WriteLog("\n");//*/
+
+// WriteLog("Jaguar: CD BIOS version %04X\n", JaguarReadWord(0x3004));
+ WriteLog("Jaguar: Interrupt enable = %02X\n", TOMReadByte(0xF000E1) & 0x1F);
+ WriteLog("Jaguar: VBL interrupt is %s\n", ((tom_irq_enabled(IRQ_VBLANK)) && (jaguar_interrupt_handler_is_valid(64))) ? "enabled" : "disabled");
+ M68K_show_context();
+//#endif
+//#ifdef SOUND_OUTPUT
+// ws_audio_done();
+//#endif
cd_bios_done();
cdrom_done();
+ gpu_done();
+ DSPDone();
tom_done();
jerry_done();
-// jaguar_regionsDone();
+
memory_free(jaguar_mainRom);
memory_free(jaguar_bootRom);
memory_free(jaguar_mainRam);
-// fprintf(log_get(),"jaguar_done()\n");
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
void jaguar_reset(void)
{
-// fprintf(log_get(),"jaguar_reset():\n");
-#ifdef SOUND_OUTPUT
- ws_audio_reset();
-#endif
+ if (jaguar_use_bios)
+ memcpy(jaguar_mainRam, jaguar_bootRom, 8);
+ else
+ {
+ SET32(jaguar_mainRam, 4, 0x00802000);
+ // Handle PD stuff...
+ // This should definitely go elsewhere (like in the cart load section)!
+ if (jaguar_mainRom[0] == 0x60 && jaguar_mainRom[1] == 0x1A)
+ {
+ uint32 runAddress = GET32(jaguar_mainRom, 0x2A);
+ uint32 progLength = GET32(jaguar_mainRom, 0x02);
+ WriteLog("Setting up PD ROM... Run address: %08X, length: %08X\n", runAddress, progLength);
+ memcpy(jaguar_mainRam + runAddress, jaguar_mainRom + 0x2E, progLength);
+ SET32(jaguar_mainRam, 4, runAddress);
+ }
+ }
+
+// WriteLog("jaguar_reset():\n");
+//#ifdef SOUND_OUTPUT
+// ws_audio_reset();
+//#endif
cd_bios_reset();
tom_reset();
jerry_reset();
gpu_reset();
- dsp_reset();
+ DSPReset();
cdrom_reset();
-// s68000reset();
m68k_pulse_reset(); // Reset the 68000
- fprintf(log_get(), "\t68K PC=%06X SP=%08X\n", m68k_get_reg(NULL, M68K_REG_PC), m68k_get_reg(NULL, M68K_REG_A7));
+ WriteLog("\t68K PC=%06X SP=%08X\n", m68k_get_reg(NULL, M68K_REG_PC), m68k_get_reg(NULL, M68K_REG_A7));
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
void jaguar_reset_handler(void)
{
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void jaguar_exec(int16 * backbuffer, uint8 render)
+
+void jaguar_exec(int16 * backbuffer, bool render)
{
- int i;
- uint32 vblank_duration = tom_get_vdb();
+ uint32 i, vblank_duration = tom_get_vdb();
// vblank
- if ((tom_irq_enabled(IRQ_VBLANK)) && (jaguar_interrupt_handler_is_valid(64)))
+ if (tom_irq_enabled(IRQ_VBLANK) && jaguar_interrupt_handler_is_valid(64))
{
- if (jaguar_word_read(0xF0004E) != 0xFFFF)
+ if (JaguarReadWord(0xF0004E) != 0x07FF) // VI (11 bits wide!)
{
tom_set_pending_video_int();
// s68000interrupt(7, IRQ_VBLANK+64);
// Then again, since IRQ_VBLANK is set to zero, this would not be necessary in this case.
}
}
+
for(i=0; i<vblank_duration; i++)
{
/* uint32 invalid_instruction_address = s68000exec(m68k_cycles_per_scanline);
if (invalid_instruction_address != 0x80000000)
cd_bios_process(invalid_instruction_address);*/
m68k_execute(m68k_cycles_per_scanline);
- // No CD handling... Hmm...
+ // No CD handling... !!! FIX !!!
cd_bios_exec(i);
tom_pit_exec(m68k_cycles_per_scanline);
- tom_exec_scanline(backbuffer, i, 0);
+ tom_exec_scanline(backbuffer, i, false);
jerry_pit_exec(m68k_cycles_per_scanline);
jerry_i2s_exec(m68k_cycles_per_scanline);
gpu_exec(gpu_cycles_per_scanline);
if (dsp_enabled)
- dsp_exec(dsp_cycles_per_scanline);
+ DSPExec(dsp_cycles_per_scanline);
}
for (; i<jaguar_screen_scanlines; i++)
if (invalid_instruction_address != 0x80000000)
cd_bios_process(invalid_instruction_address);*/
m68k_execute(m68k_cycles_per_scanline);
- // No CD handling... Hmm...
+ // No CD handling... !!! FIX !!!
cd_bios_exec(i);
tom_pit_exec(m68k_cycles_per_scanline);
jerry_pit_exec(m68k_cycles_per_scanline);
tom_exec_scanline(backbuffer, i, render);
gpu_exec(gpu_cycles_per_scanline);
if (dsp_enabled)
- dsp_exec(dsp_cycles_per_scanline);
+ DSPExec(dsp_cycles_per_scanline);
backbuffer += tom_width;
}
-#ifdef SOUND_OUTPUT
- system_sound_update();
-#endif
+//#ifdef SOUND_OUTPUT
+// system_sound_update();
+//#endif
+}
+
+//
+// Main Jaguar execution loop (1 frame)
+//
+void JaguarExecute(int16 * backbuffer, bool render)
+{
+ uint16 vp = TOMReadWord(0xF0003E);//Hmm. This is a WO register. Will work? Looks like. But wrong behavior!
+ uint16 vi = TOMReadWord(0xF0004E);//Another WO register...
+ uint16 vdb = TOMReadWord(0xF00046);
+// uint16 endingLine =
+//Note: This is the *definite* end of the display, though VDE *might* be less than this...
+// uint16 vbb = TOMReadWord(0xF00040);
+//It seems that they mean it when they say that VDE is the end of object processing.
+//However, we need to be able to tell the OP (or TOM) that we've reached the end of the
+//buffer and not to write any more pixels... !!! FIX !!!
+ uint16 vde = TOMReadWord(0xF00048);
+
+/*extern int effect_start;
+if (effect_start)
+{
+ WriteLog("JagExe: VP=%u, VI=%u, VDB=%u, VBB=%u CPU CPS=%u, GPU CPS=%u\n", vp, vi, vdb, vbb, m68k_cycles_per_scanline, gpu_cycles_per_scanline);
+}//*/
+
+ for(uint16 i=0; i<vp; i++)
+ {
+ // Increment the horizontal count (why? RNG?)
+ TOMWriteWord(0xF00004, TOMReadWord(0xF00004) + 1);
+
+ TOMWriteWord(0xF00006, i); // Write the VC
+
+ if (i == vi) // Time for Vertical Interrupt?
+ {
+ if (tom_irq_enabled(IRQ_VBLANK) && jaguar_interrupt_handler_is_valid(64))
+ {
+ // We don't have to worry about autovectors & whatnot because the Jaguar
+ // tells you through registers who sent the interrupt...
+ tom_set_pending_video_int();
+ m68k_set_irq(7);
+ }
+ }
+
+// uint32 invalid_instruction_address = s68000exec(m68k_cycles_per_scanline);
+// if (invalid_instruction_address != 0x80000000)
+// cd_bios_process(invalid_instruction_address);
+ // These are divided by 2 because we're executing *half* lines...!
+ m68k_execute(m68k_cycles_per_scanline / 2);
+ // No CD handling... !!! FIX !!!
+ cd_bios_exec(i); // NOTE: Ignores parameter...
+//I'm pretty sure these run at the RISC clock rate...
+// tom_pit_exec(m68k_cycles_per_scanline / 2);
+// jerry_pit_exec(m68k_cycles_per_scanline / 2);
+// jerry_i2s_exec(m68k_cycles_per_scanline / 2);
+ tom_pit_exec(gpu_cycles_per_scanline / 2);
+ jerry_pit_exec(gpu_cycles_per_scanline / 2);
+ jerry_i2s_exec(gpu_cycles_per_scanline / 2);
+ gpu_exec(gpu_cycles_per_scanline / 2);
+ if (dsp_enabled)
+ DSPExec(dsp_cycles_per_scanline / 2);
+
+//Interlacing is still not handled correctly here...
+ if (i >= vdb && i < vde)//vbb)
+ {
+ if (!(i & 0x01)) // Execute OP only on even lines (non-interlaced only!)
+ {
+ tom_exec_scanline(backbuffer, i/2, render); // i/2 is a kludge...
+ backbuffer += TOMGetSDLScreenPitch() / 2; // Convert bytes to words...
+ }
+ }
+ }
+
+//#ifdef SOUND_OUTPUT
+// system_sound_update();
+//#endif
+}
+
+// Temp debugging stuff
+
+void DumpMainMemory(void)
+{
+ FILE * fp = fopen("./memdump.bin", "wb");
+
+ if (fp == NULL)
+ return;
+
+ fwrite(jaguar_mainRam, 1, 0x400000, fp);
+ fclose(fp);
+}
+
+uint8 * GetRamPtr(void)
+{
+ return jaguar_mainRam;
}
projects / virtualjaguar / blobdiff