X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fjaguar.cpp;h=0a54ea4ba1579d5d47f78b44d2e57f4bf128c030;hb=d239de704f276a75d927900e3d413a44cc87116c;hp=7f3d3c0d61410e200edb25ab6dce8ac664fa7447;hpb=4a9e75bf88e044c9f24f6d2d5f9858d0b0857cc3;p=virtualjaguar diff --git a/src/jaguar.cpp b/src/jaguar.cpp index 7f3d3c0..0a54ea4 100644 --- a/src/jaguar.cpp +++ b/src/jaguar.cpp @@ -1,21 +1,37 @@ // // JAGUAR.CPP // -// by Cal2 -// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS) +// Originally by David Raingeard (Cal2) +// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Carwin Jones (BeOS) // Cleanups and endian wrongness amelioration by James L. Hammons // Note: Endian wrongness probably stems from the MAME origins of this emu and // the braindead way in which MAME handles memory. :-) -// +// #include "jaguar.h" -#include "video.h" + +#include +#include "SDL_opengl.h" +#include "cdrom.h" +#include "dsp.h" +#include "event.h" +#include "gpu.h" +#include "gui.h" +#include "jerry.h" +#include "joystick.h" +#include "log.h" +#include "m68k.h" +#include "memory.h" #include "settings.h" -//#include "m68kdasmAG.h" +#include "tom.h" +#include "video.h" #define CPU_DEBUG //Do this in makefile??? Yes! Could, but it's easier to define here... -#define LOG_UNMAPPED_MEMORY_ACCESSES +//#define LOG_UNMAPPED_MEMORY_ACCESSES +//#define ABORT_ON_UNMAPPED_MEMORY_ACCESS +#define ABORT_ON_ILLEGAL_INSTRUCTIONS +//#define ABORT_ON_OFFICIAL_ILLEGAL_INSTRUCTION #define CPU_DEBUG_MEMORY // Private function prototypes @@ -37,34 +53,66 @@ extern int effect_start2, effect_start3, effect_start4, effect_start5, effect_st // Memory debugging identifiers -char * whoName[9] = +const char * whoName[9] = { "Unknown", "Jaguar", "DSP", "GPU", "TOM", "JERRY", "M68K", "Blitter", "OP" }; -// These values are overridden by command line switches... - -//extern bool dsp_enabled; -//extern bool jaguar_use_bios; // Default is now to USE the BIOS uint32 jaguar_active_memory_dumps = 0; -uint32 jaguar_mainRom_crc32; +uint32 jaguarMainRomCRC32, jaguarRomSize, jaguarRunAddress; + +uint8 * jaguarMainRam = NULL; +uint8 * jaguarMainRom = NULL; +uint8 * jaguarBootRom = NULL; +uint8 * jaguarCDBootROM = NULL; +bool BIOSLoaded = false; +bool CDBIOSLoaded = false; -/*static*/ uint8 * jaguar_mainRam = NULL; -/*static*/ uint8 * jaguar_bootRom = NULL; -/*static*/ uint8 * jaguar_mainRom = NULL; #ifdef CPU_DEBUG_MEMORY uint8 writeMemMax[0x400000], writeMemMin[0x400000]; uint8 readMem[0x400000]; uint32 returnAddr[4000], raPtr = 0xFFFFFFFF; #endif +uint32 pcQueue[0x400]; +uint32 pcQPtr = 0; + // // Callback function to detect illegal instructions // -//void GPUDumpDisassembly(void); -//void GPUDumpRegisters(void); +void GPUDumpDisassembly(void); +void GPUDumpRegisters(void); + static bool start = false; void M68KInstructionHook(void) { uint32 m68kPC = m68k_get_reg(NULL, M68K_REG_PC); + +// For tracebacks... +// Ideally, we'd save all the registers as well... + pcQueue[pcQPtr++] = m68kPC; + pcQPtr &= 0x3FF; + + if (m68kPC & 0x01) // Oops! We're fetching an odd address! + { + WriteLog("M68K: Attempted to execute from an odd adress!\n\nBacktrace:\n\n"); + + static char buffer[2048]; + for(int i=0; i<0x400; i++) + { + m68k_disassemble(buffer, pcQueue[(pcQPtr + i) & 0x3FF], M68K_CPU_TYPE_68000); + WriteLog("\t%08X: %s\n", pcQueue[(pcQPtr + i) & 0x3FF], buffer); + } + WriteLog("\n"); + + 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", ((TOMIRQEnabled(IRQ_VBLANK)) && (JaguarInterruptHandlerIsValid(64))) ? "enabled" : "disabled"); + M68K_show_context(); + LogDone(); + exit(0); + } + /* if (m68kPC >= 0x807EC4 && m68kPC <= 0x807EDB) { static char buffer[2048]; @@ -107,9 +155,43 @@ void M68KInstructionHook(void) } }//*/ +//Flip Out! debugging... +//805F46, 806486 +/* +00805FDC: movea.l #$9c6f8, A0 D0=00100010, A0=00100000 +00805FE2: move.w #$10, (A0)+ D0=00100010, A0=0009C6F8 +00805FE6: cmpa.l #$c96f8, A0 D0=00100010, A0=0009C6FA +00805FEC: bne 805fe2 D0=00100010, A0=0009C6FA + +0080603A: move.l #$11ed7c, $100.w D0=61700080, A0=000C96F8, D1=00000000, A1=000040D8 + +0012314C: move.l (A0)+, (A1)+ D0=61700080, A0=00124174, D1=00000000, A1=00F03FFC +0012314E: cmpa.l #$f04000, A1 D0=61700080, A0=00124178, D1=00000000, A1=00F04000 +00123154: blt 12314c D0=61700080, A0=00124178, D1=00000000, A1=00F04000 +00123156: move.l #$0, $f035d0.l D0=61700080, A0=00124178, D1=00000000, A1=00F04000 +00123160: move.l #$f03000, $f02110.l D0=61700080, A0=00124178, D1=00000000, A1=00F04000 +0012316A: move.l #$1, $f02114.l D0=61700080, A0=00124178, D1=00000000, A1=00F04000 +00123174: rts D0=61700080, A0=00124178, D1=00000000, A1=00F04000 +*/ /* static char buffer[2048]; +//if (m68kPC > 0x805F48) start = true; +//if (m68kPC > 0x806486) start = true; +//if (m68kPC == 0x805FEE) start = true; +//if (m68kPC == 0x80600C)// start = true; +if (m68kPC == 0x802058) start = true; +//{ +// GPUDumpRegisters(); +// GPUDumpDisassembly(); +// +// M68K_show_context(); +// log_done(); +// exit(0); +//} + if (start) + { 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));//*/ + WriteLog("%08X: %s \t\tD0=%08X, A0=%08X, D1=%08X, A1=%08X\n", m68kPC, buffer, m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_A0), m68k_get_reg(NULL, M68K_REG_D1), m68k_get_reg(NULL, M68K_REG_A1)); + }//*/ /* if (m68kPC == 0x803F16) { @@ -121,19 +203,147 @@ void M68KInstructionHook(void) 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)); }*/ - +//Looks like the DSP is supposed to return $12345678 when it finishes its validation routine... +// !!! Investigate !!! +/*extern bool doDSPDis; + static bool disgo = false; + if (m68kPC == 0x50222) + { + // CD BIOS hacking +// WriteLog("M68K: About to stuff $12345678 into $F1B000 (=%08X)...\n", DSPReadLong(0xF1B000, M68K)); +// DSPWriteLong(0xF1B000, 0x12345678, M68K); +// disgo = true; + } + if (m68kPC == 0x5000) +// doDSPDis = true; + disgo = true; + if (disgo) + { + static char buffer[2048]; + m68k_disassemble(buffer, m68kPC, M68K_CPU_TYPE_68000); + WriteLog("%08X: %s", m68kPC, buffer); + WriteLog("\t\tA0=%08X, A1=%08X, D0=%08X, D1=%08X, D2=%08X\n", + m68k_get_reg(NULL, M68K_REG_A0), m68k_get_reg(NULL, M68K_REG_A1), + m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_D1), m68k_get_reg(NULL, M68K_REG_D2)); + }//*/ + if (m68kPC == 0x82E1A) + { + static char buffer[2048]; + m68k_disassemble(buffer, m68kPC, M68K_CPU_TYPE_68000); + WriteLog("--> [Routine start] %08X: %s", m68kPC, buffer); + WriteLog("\t\tA0=%08X, A1=%08X, D0=%08X(cmd), D1=%08X(# bytes), D2=%08X\n", + m68k_get_reg(NULL, M68K_REG_A0), m68k_get_reg(NULL, M68K_REG_A1), + m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_D1), m68k_get_reg(NULL, M68K_REG_D2)); + }//*/ + if (m68kPC == 0x82E58) + WriteLog("--> [Routine end]\n"); + if (m68kPC == 0x80004) + { + WriteLog("--> [Calling BusWrite2] D2: %08X\n", m68k_get_reg(NULL, M68K_REG_D2)); +// m68k_set_reg(M68K_REG_D2, 0x12345678); + }//*/ +/* +CD_init:: -> $3000 +BIOS_VER:: -> $3004 +CD_mode:: -> $3006 +CD_ack:: -> $300C +CD_jeri:: -> $3012 +CD_spin:: -> $3018 +CD_stop:: -> $301E +CD_mute:: -> $3024 +CD_umute:: -> $302A +CD_paus:: -> $3030 +CD_upaus:: -> $3036 +CD_read:: -> $303C +CD_uread:: -> $3042 +CD_setup:: -> $3048 +CD_ptr:: -> $304E +CD_osamp:: -> $3054 +CD_getoc:: -> $305A +CD_initm:: -> $3060 +CD_initf:: -> $3066 +CD_switch:: -> $306C +*/ + if (m68kPC == 0x3000) + WriteLog("M68K: CD_init\n"); + else if (m68kPC == 0x3006 + (6 * 0)) + WriteLog("M68K: CD_mode\n"); + else if (m68kPC == 0x3006 + (6 * 1)) + WriteLog("M68K: CD_ack\n"); + else if (m68kPC == 0x3006 + (6 * 2)) + WriteLog("M68K: CD_jeri\n"); + else if (m68kPC == 0x3006 + (6 * 3)) + WriteLog("M68K: CD_spin\n"); + else if (m68kPC == 0x3006 + (6 * 4)) + WriteLog("M68K: CD_stop\n"); + else if (m68kPC == 0x3006 + (6 * 5)) + WriteLog("M68K: CD_mute\n"); + else if (m68kPC == 0x3006 + (6 * 6)) + WriteLog("M68K: CD_umute\n"); + else if (m68kPC == 0x3006 + (6 * 7)) + WriteLog("M68K: CD_paus\n"); + else if (m68kPC == 0x3006 + (6 * 8)) + WriteLog("M68K: CD_upaus\n"); + else if (m68kPC == 0x3006 + (6 * 9)) + WriteLog("M68K: CD_read\n"); + else if (m68kPC == 0x3006 + (6 * 10)) + WriteLog("M68K: CD_uread\n"); + else if (m68kPC == 0x3006 + (6 * 11)) + WriteLog("M68K: CD_setup\n"); + else if (m68kPC == 0x3006 + (6 * 12)) + WriteLog("M68K: CD_ptr\n"); + else if (m68kPC == 0x3006 + (6 * 13)) + WriteLog("M68K: CD_osamp\n"); + else if (m68kPC == 0x3006 + (6 * 14)) + WriteLog("M68K: CD_getoc\n"); + else if (m68kPC == 0x3006 + (6 * 15)) + WriteLog("M68K: CD_initm\n"); + else if (m68kPC == 0x3006 + (6 * 16)) + WriteLog("M68K: CD_initf\n"); + else if (m68kPC == 0x3006 + (6 * 17)) + WriteLog("M68K: CD_switch\n"); + + if (m68kPC >= 0x3000 && m68kPC <= 0x306C) + WriteLog("\t\tA0=%08X, A1=%08X, D0=%08X, D1=%08X, D2=%08X\n", + m68k_get_reg(NULL, M68K_REG_A0), m68k_get_reg(NULL, M68K_REG_A1), + m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_D1), m68k_get_reg(NULL, M68K_REG_D2)); +//*/ +#ifdef ABORT_ON_ILLEGAL_INSTRUCTIONS if (!m68k_is_valid_instruction(m68k_read_memory_16(m68kPC), M68K_CPU_TYPE_68000)) { +#ifndef ABORT_ON_OFFICIAL_ILLEGAL_INSTRUCTION + if (m68k_read_memory_16(m68kPC) == 0x4AFC) + { + // This is a kludge to let homebrew programs work properly (i.e., let the other processors + // keep going even when the 68K dumped back to the debugger or what have you). +//dis no wok right! +// m68k_set_reg(M68K_REG_PC, m68kPC - 2); +// Try setting the vector to the illegal instruction... +//This doesn't work right either! Do something else! Quick! +// SET32(jaguar_mainRam, 0x10, m68kPC); + + return; + } +#endif + 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"); + WriteLog("Jaguar: VBL interrupt is %s\n", ((TOMIRQEnabled(IRQ_VBLANK)) && (JaguarInterruptHandlerIsValid(64))) ? "enabled" : "disabled"); M68K_show_context(); - log_done(); + +//temp +// WriteLog("\n\n68K disasm\n\n"); +// jaguar_dasm(0x802000, 0x50C); +// WriteLog("\n\n"); +//endoftemp + + LogDone(); exit(0); }//*/ +#endif } // @@ -165,14 +375,19 @@ unsigned int m68k_read_memory_8(unsigned int address) } #endif //WriteLog("[RM8] Addr: %08X\n", address); +//; So, it seems that it stores the returned DWORD at $51136 and $FB074. +/* if (address == 0x51136 || address == 0x51138 || address == 0xFB074 || address == 0xFB076 + || address == 0x1AF05E) + WriteLog("[RM8 PC=%08X] Addr: %08X, val: %02X\n", m68k_get_reg(NULL, M68K_REG_PC), address, jaguar_mainRam[address]);//*/ unsigned int retVal = 0; if ((address >= 0x000000) && (address <= 0x3FFFFF)) - retVal = jaguar_mainRam[address]; - else if ((address >= 0x800000) && (address <= 0xDFFFFF)) - retVal = jaguar_mainRom[address - 0x800000]; + retVal = jaguarMainRam[address]; +// else if ((address >= 0x800000) && (address <= 0xDFFFFF)) + else if ((address >= 0x800000) && (address <= 0xDFFEFF)) + retVal = jaguarMainRom[address - 0x800000]; else if ((address >= 0xE00000) && (address <= 0xE3FFFF)) - retVal = jaguar_bootRom[address - 0xE00000]; + retVal = jaguarBootRom[address - 0xE00000]; else if ((address >= 0xDFFF00) && (address <= 0xDFFFFF)) retVal = CDROMReadByte(address); else if ((address >= 0xF00000) && (address <= 0xF0FFFF)) @@ -182,6 +397,10 @@ unsigned int m68k_read_memory_8(unsigned int address) else retVal = jaguar_unknown_readbyte(address, M68K); +//if (address >= 0x2800 && address <= 0x281F) +// WriteLog("M68K: Read byte $%02X at $%08X [PC=%08X]\n", retVal, address, m68k_get_reg(NULL, M68K_REG_PC)); +//if (address >= 0x8B5E4 && address <= 0x8B5E4 + 16) +// WriteLog("M68K: Read byte $%02X at $%08X [PC=%08X]\n", retVal, address, m68k_get_reg(NULL, M68K_REG_PC)); return retVal; } @@ -246,14 +465,20 @@ unsigned int m68k_read_memory_16(unsigned int address) for(int i=0; i<10000; i++) WriteLog("[M68K] About to run GPU! (Addr:%08X, data:%04X)\n", address, TOMReadWord(address)); }//*/ +//; So, it seems that it stores the returned DWORD at $51136 and $FB074. +/* if (address == 0x51136 || address == 0x51138 || address == 0xFB074 || address == 0xFB076 + || address == 0x1AF05E) + WriteLog("[RM16 PC=%08X] Addr: %08X, val: %04X\n", m68k_get_reg(NULL, M68K_REG_PC), address, GET16(jaguar_mainRam, address));//*/ unsigned int retVal = 0; if ((address >= 0x000000) && (address <= 0x3FFFFE)) - retVal = (jaguar_mainRam[address] << 8) | jaguar_mainRam[address+1]; - else if ((address >= 0x800000) && (address <= 0xDFFFFE)) - retVal = (jaguar_mainRom[address - 0x800000] << 8) | jaguar_mainRom[address - 0x800000 + 1]; +// retVal = (jaguar_mainRam[address] << 8) | jaguar_mainRam[address+1]; + retVal = GET16(jaguarMainRam, address); +// else if ((address >= 0x800000) && (address <= 0xDFFFFE)) + else if ((address >= 0x800000) && (address <= 0xDFFEFE)) + retVal = (jaguarMainRom[address - 0x800000] << 8) | jaguarMainRom[address - 0x800000 + 1]; else if ((address >= 0xE00000) && (address <= 0xE3FFFE)) - retVal = (jaguar_bootRom[address - 0xE00000] << 8) | jaguar_bootRom[address - 0xE00000 + 1]; + retVal = (jaguarBootRom[address - 0xE00000] << 8) | jaguarBootRom[address - 0xE00000 + 1]; else if ((address >= 0xDFFF00) && (address <= 0xDFFFFE)) retVal = CDROMReadWord(address, M68K); else if ((address >= 0xF00000) && (address <= 0xF0FFFE)) @@ -263,11 +488,23 @@ unsigned int m68k_read_memory_16(unsigned int address) else retVal = jaguar_unknown_readword(address, M68K); +//if (address >= 0xF1B000 && address <= 0xF1CFFF) +// WriteLog("M68K: Read word $%04X at $%08X [PC=%08X]\n", retVal, address, m68k_get_reg(NULL, M68K_REG_PC)); +//if (address >= 0x2800 && address <= 0x281F) +// WriteLog("M68K: Read word $%04X at $%08X [PC=%08X]\n", retVal, address, m68k_get_reg(NULL, M68K_REG_PC)); +//$8B3AE -> Transferred from $F1C010 +//$8B5E4 -> Only +1 read at $808AA +//if (address >= 0x8B5E4 && address <= 0x8B5E4 + 16) +// WriteLog("M68K: Read word $%04X at $%08X [PC=%08X]\n", retVal, address, m68k_get_reg(NULL, M68K_REG_PC)); return retVal; } unsigned int m68k_read_memory_32(unsigned int address) { +//; So, it seems that it stores the returned DWORD at $51136 and $FB074. +/* if (address == 0x51136 || address == 0xFB074 || address == 0x1AF05E) + WriteLog("[RM32 PC=%08X] Addr: %08X, val: %08X\n", m68k_get_reg(NULL, M68K_REG_PC), address, (m68k_read_memory_16(address) << 16) | m68k_read_memory_16(address + 2));//*/ + //WriteLog("--> [RM32]\n"); return (m68k_read_memory_16(address) << 16) | m68k_read_memory_16(address + 2); } @@ -289,8 +526,12 @@ void m68k_write_memory_8(unsigned int address, unsigned int 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 (effect_start) + if (address >= 0x18FA70 && address < (0x18FA70 + 8000)) + WriteLog("M68K: Byte %02X written at %08X by 68K\n", value, address);//*/ + if ((address >= 0x000000) && (address <= 0x3FFFFF)) - jaguar_mainRam[address] = value; + jaguarMainRam[address] = value; else if ((address >= 0xDFFF00) && (address <= 0xDFFFFF)) CDROMWriteByte(address, value, M68K); else if ((address >= 0xF00000) && (address <= 0xF0FFFF)) @@ -337,11 +578,20 @@ if (address == 0xF02110) //if (address >= 0xF03B00 && address <= 0xF03DFF) // WriteLog("M68K: Writing %04X to %08X...\n", value, address); +/*if (address == 0x0100)//64*4) + WriteLog("M68K: Wrote word to VI vector value %04X...\n", value);//*/ +/*if (effect_start) + if (address >= 0x18FA70 && address < (0x18FA70 + 8000)) + WriteLog("M68K: Word %04X written at %08X by 68K\n", value, address);//*/ +/* if (address == 0x51136 || address == 0x51138 || address == 0xFB074 || address == 0xFB076 + || address == 0x1AF05E) + WriteLog("[WM16 PC=%08X] Addr: %08X, val: %04X\n", m68k_get_reg(NULL, M68K_REG_PC), address, value);//*/ + if ((address >= 0x000000) && (address <= 0x3FFFFE)) { /* jaguar_mainRam[address] = value >> 8; jaguar_mainRam[address + 1] = value & 0xFF;*/ - SET16(jaguar_mainRam, address, value); + SET16(jaguarMainRam, address, value); } else if ((address >= 0xDFFF00) && (address <= 0xDFFFFE)) CDROMWriteWord(address, value, M68K); @@ -352,32 +602,43 @@ if (address == 0xF02110) else { jaguar_unknown_writeword(address, value, M68K); +#ifdef LOG_UNMAPPED_MEMORY_ACCESSES WriteLog("\tA0=%08X, A1=%08X, D0=%08X, D1=%08X\n", m68k_get_reg(NULL, M68K_REG_A0), m68k_get_reg(NULL, M68K_REG_A1), m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_D1)); +#endif } } void m68k_write_memory_32(unsigned int address, unsigned int value) { //WriteLog("--> [WM32]\n"); +/*if (address == 0x0100)//64*4) + WriteLog("M68K: Wrote dword to VI vector value %08X...\n", value);//*/ +/*if (address >= 0xF03214 && address < 0xF0321F) + WriteLog("M68K: Writing DWORD (%08X) to GPU RAM (%08X)...\n", value, address);//*/ +//M68K: Writing DWORD (88E30047) to GPU RAM (00F03214)... +/*extern bool doGPUDis; +if (address == 0xF03214 && value == 0x88E30047) +// start = true; + doGPUDis = true;//*/ +/* if (address == 0x51136 || address == 0xFB074) + WriteLog("[WM32 PC=%08X] Addr: %08X, val: %02X\n", m68k_get_reg(NULL, M68K_REG_PC), address, value);//*/ + m68k_write_memory_16(address, value >> 16); m68k_write_memory_16(address + 2, value & 0xFFFF); } -uint32 jaguar_get_handler(uint32 i) +uint32 JaguarGetHandler(uint32 i) { return JaguarReadLong(i * 4); } -uint32 jaguar_interrupt_handler_is_valid(uint32 i) +bool JaguarInterruptHandlerIsValid(uint32 i) // Debug use only... { - uint32 handler = jaguar_get_handler(i); - if (handler && (handler != 0xFFFFFFFF)) - return 1; - else - return 0; + uint32 handler = JaguarGetHandler(i); + return (handler && (handler != 0xFFFFFFFF) ? 1 : 0); } void M68K_show_context(void) @@ -391,15 +652,18 @@ void M68K_show_context(void) WriteLog("68K disasm\n"); // jaguar_dasm(s68000readPC()-0x1000,0x20000); - jaguar_dasm(m68k_get_reg(NULL, M68K_REG_PC) - 0x80, 0x200); + JaguarDasm(m68k_get_reg(NULL, M68K_REG_PC) - 0x80, 0x200); // jaguar_dasm(0x5000, 0x14414); +// WriteLog("\n.......[Cart start]...........\n\n"); +// jaguar_dasm(0x192000, 0x1000);//0x200); + WriteLog("..................\n"); - if (tom_irq_enabled(IRQ_VBLANK)) + if (TOMIRQEnabled(IRQ_VBLANK)) { WriteLog("vblank int: enabled\n"); - jaguar_dasm(jaguar_get_handler(64), 0x200); + JaguarDasm(JaguarGetHandler(64), 0x200); } else WriteLog("vblank int: disabled\n"); @@ -407,7 +671,7 @@ void M68K_show_context(void) WriteLog("..................\n"); for(int i=0; i<256; i++) - WriteLog("handler %03i at $%08X\n", i, (unsigned int)jaguar_get_handler(i)); + WriteLog("handler %03i at $%08X\n", i, (unsigned int)JaguarGetHandler(i)); } // @@ -434,9 +698,11 @@ void jaguar_unknown_writebyte(unsigned address, unsigned data, uint32 who/*=UNKN { #ifdef LOG_UNMAPPED_MEMORY_ACCESSES 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; +#endif +#ifdef ABORT_ON_UNMAPPED_MEMORY_ACCESS +// extern bool finished; finished = true; - extern bool doDSPDis; +// extern bool doDSPDis; if (who == DSP) doDSPDis = true; #endif @@ -446,9 +712,11 @@ void jaguar_unknown_writeword(unsigned address, unsigned data, uint32 who/*=UNKN { #ifdef LOG_UNMAPPED_MEMORY_ACCESSES 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; +#endif +#ifdef ABORT_ON_UNMAPPED_MEMORY_ACCESS +// extern bool finished; finished = true; - extern bool doDSPDis; +// extern bool doDSPDis; if (who == DSP) doDSPDis = true; #endif @@ -458,9 +726,11 @@ unsigned jaguar_unknown_readbyte(unsigned address, uint32 who/*=UNKNOWN*/) { #ifdef LOG_UNMAPPED_MEMORY_ACCESSES 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; +#endif +#ifdef ABORT_ON_UNMAPPED_MEMORY_ACCESS +// extern bool finished; finished = true; - extern bool doDSPDis; +// extern bool doDSPDis; if (who == DSP) doDSPDis = true; #endif @@ -471,9 +741,11 @@ unsigned jaguar_unknown_readword(unsigned address, uint32 who/*=UNKNOWN*/) { #ifdef LOG_UNMAPPED_MEMORY_ACCESSES 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; +#endif +#ifdef ABORT_ON_UNMAPPED_MEMORY_ACCESS +// extern bool finished; finished = true; - extern bool doDSPDis; +// extern bool doDSPDis; if (who == DSP) doDSPDis = true; #endif @@ -499,7 +771,7 @@ unsigned int m68k_read_disassembler_32(unsigned int address) return m68k_read_memory_32(address); } -void jaguar_dasm(uint32 offset, uint32 qt) +void JaguarDasm(uint32 offset, uint32 qt) { #ifdef CPU_DEBUG static char buffer[2048];//, mem[64]; @@ -526,13 +798,13 @@ uint8 JaguarReadByte(uint32 offset, uint32 who/*=UNKNOWN*/) offset &= 0xFFFFFF; if (offset < 0x400000) - data = jaguar_mainRam[offset & 0x3FFFFF]; + data = jaguarMainRam[offset & 0x3FFFFF]; else if ((offset >= 0x800000) && (offset < 0xC00000)) - data = jaguar_mainRom[offset - 0x800000]; + data = jaguarMainRom[offset - 0x800000]; else if ((offset >= 0xDFFF00) && (offset <= 0xDFFFFF)) data = CDROMReadByte(offset, who); else if ((offset >= 0xE00000) && (offset < 0xE40000)) - data = jaguar_bootRom[offset & 0x3FFFF]; + data = jaguarBootRom[offset & 0x3FFFF]; else if ((offset >= 0xF00000) && (offset < 0xF10000)) data = TOMReadByte(offset, who); else if ((offset >= 0xF10000) && (offset < 0xF20000)) @@ -548,18 +820,18 @@ uint16 JaguarReadWord(uint32 offset, uint32 who/*=UNKNOWN*/) offset &= 0xFFFFFF; if (offset <= 0x3FFFFE) { - return (jaguar_mainRam[(offset+0) & 0x3FFFFF] << 8) | jaguar_mainRam[(offset+1) & 0x3FFFFF]; + return (jaguarMainRam[(offset+0) & 0x3FFFFF] << 8) | jaguarMainRam[(offset+1) & 0x3FFFFF]; } else if ((offset >= 0x800000) && (offset <= 0xBFFFFE)) { offset -= 0x800000; - return (jaguar_mainRom[offset+0] << 8) | jaguar_mainRom[offset+1]; + return (jaguarMainRom[offset+0] << 8) | jaguarMainRom[offset+1]; } // 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]; + return (jaguarBootRom[(offset+0) & 0x3FFFF] << 8) | jaguarBootRom[(offset+1) & 0x3FFFF]; else if ((offset >= 0xF00000) && (offset <= 0xF0FFFE)) return TOMReadWord(offset, who); else if ((offset >= 0xF10000) && (offset <= 0xF1FFFE)) @@ -570,10 +842,15 @@ uint16 JaguarReadWord(uint32 offset, uint32 who/*=UNKNOWN*/) void JaguarWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/) { +//Need to check for writes in the range of $18FA70 + 8000... +/*if (effect_start) + if (offset >= 0x18FA70 && offset < (0x18FA70 + 8000)) + WriteLog("JWB: Byte %02X written at %08X by %s\n", data, offset, whoName[who]);//*/ + offset &= 0xFFFFFF; if (offset < 0x400000) { - jaguar_mainRam[offset & 0x3FFFFF] = data; + jaguarMainRam[offset & 0x3FFFFF] = data; return; } else if ((offset >= 0xDFFF00) && (offset <= 0xDFFFFF)) @@ -591,24 +868,118 @@ void JaguarWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/) JERRYWriteByte(offset, data, who); return; } - + jaguar_unknown_writebyte(offset, data, who); } +uint32 starCount; void JaguarWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/) { +/*if (offset == 0x0100)//64*4) + WriteLog("M68K: %s wrote word to VI vector value %04X...\n", whoName[who], data); +if (offset == 0x0102)//64*4) + WriteLog("M68K: %s wrote word to VI vector+2 value %04X...\n", whoName[who], data);//*/ //TEMP--Mirror of F03000? Yes, but only 32-bit CPUs can do it (i.e., NOT the 68K!) // PLUS, you would handle this in the GPU/DSP WriteLong code! Not here! +//Need to check for writes in the range of $18FA70 + 8000... +/*if (effect_start) + if (offset >= 0x18FA70 && offset < (0x18FA70 + 8000)) + WriteLog("JWW: Word %04X written at %08X by %s\n", data, offset, whoName[who]);//*/ +/*if (offset >= 0x2C00 && offset <= 0x2CFF) + WriteLog("Jaguar: Word %04X written to TOC+%02X by %s\n", data, offset-0x2C00, whoName[who]);//*/ + offset &= 0xFFFFFF; if (offset <= 0x3FFFFE) { +/* +GPU Table (CD BIOS) + +1A 69 F0 ($0000) -> Starfield +1A 73 C8 ($0001) -> Final clearing blit & bitmap blit? +1A 79 F0 ($0002) +1A 88 C0 ($0003) +1A 8F E8 ($0004) -> "Jaguar" small color logo? +1A 95 20 ($0005) +1A 9F 08 ($0006) +1A A1 38 ($0007) +1A AB 38 ($0008) +1A B3 C8 ($0009) +1A B9 C0 ($000A) +*/ + //This MUST be done by the 68K! /*if (offset == 0x670C) WriteLog("Jaguar: %s writing to location $670C...\n", whoName[who]);*/ - jaguar_mainRam[(offset+0) & 0x3FFFFF] = (data>>8) & 0xFF; - jaguar_mainRam[(offset+1) & 0x3FFFFF] = data & 0xFF; +/*extern bool doGPUDis; +//if ((offset == 0x100000 + 75522) && who == GPU) // 76,226 -> 75522 +if ((offset == 0x100000 + 128470) && who == GPU) // 107,167 -> 128470 (384 x 250 screen size 16BPP) +//if ((offset >= 0x100000 && offset <= 0x12C087) && who == GPU) + doGPUDis = true;//*/ +/*if (offset == 0x100000 + 128470) // 107,167 -> 128470 (384 x 250 screen size 16BPP) + WriteLog("JWW: Writing value %04X at %08X by %s...\n", data, offset, whoName[who]); +if ((data & 0xFF00) != 0x7700) + WriteLog("JWW: Writing value %04X at %08X by %s...\n", data, offset, whoName[who]);//*/ +/*if ((offset >= 0x100000 && offset <= 0x147FFF) && who == GPU) + return;//*/ +/*if ((data & 0xFF00) != 0x7700 && who == GPU) + WriteLog("JWW: Writing value %04X at %08X by %s...\n", data, offset, whoName[who]);//*/ +/*if ((offset >= 0x100000 + 0x48000 && offset <= 0x12C087 + 0x48000) && who == GPU) + return;//*/ +/*extern bool doGPUDis; +if (offset == 0x120216 && who == GPU) + doGPUDis = true;//*/ +/*extern uint32 gpu_pc; +if (who == GPU && (gpu_pc == 0xF03604 || gpu_pc == 0xF03638)) +{ + uint32 base = offset - (offset > 0x148000 ? 0x148000 : 0x100000); + uint32 y = base / 0x300; + uint32 x = (base - (y * 0x300)) / 2; + WriteLog("JWW: Writing starfield star %04X at %08X (%u/%u) [%s]\n", data, offset, x, y, (gpu_pc == 0xF03604 ? "s" : "L")); +}//*/ +/* +JWW: Writing starfield star 775E at 0011F650 (555984/1447) +*/ +//if (offset == (0x001E17F8 + 0x34)) +/*if (who == GPU && offset == (0x001E17F8 + 0x34)) + data = 0xFE3C;//*/ +// WriteLog("JWW: Write at %08X written to by %s.\n", 0x001E17F8 + 0x34, whoName[who]);//*/ +/*extern uint32 gpu_pc; +if (who == GPU && (gpu_pc == 0xF03604 || gpu_pc == 0xF03638)) +{ + extern int objectPtr; +// if (offset > 0x148000) +// return; + starCount++; + if (starCount > objectPtr) + return; + +// if (starCount == 1) +// WriteLog("--> Drawing 1st star...\n"); +// +// uint32 base = offset - (offset > 0x148000 ? 0x148000 : 0x100000); +// uint32 y = base / 0x300; +// uint32 x = (base - (y * 0x300)) / 2; +// WriteLog("JWW: Writing starfield star %04X at %08X (%u/%u) [%s]\n", data, offset, x, y, (gpu_pc == 0xF03604 ? "s" : "L")); + +//A star of interest... +//-->JWW: Writing starfield star 77C9 at 0011D31A (269/155) [s] +//1st trail +3(x), -1(y) -> 272, 154 -> 0011D020 +//JWW: Blitter writing echo 77B3 at 0011D022... +}//*/ +//extern bool doGPUDis; +/*if (offset == 0x11D022 + 0x48000 || offset == 0x11D022)// && who == GPU) +{ +// doGPUDis = true; + WriteLog("JWW: %s writing echo %04X at %08X...\n", whoName[who], data, offset); +// LogBlit(); +} +if (offset == 0x11D31A + 0x48000 || offset == 0x11D31A) + WriteLog("JWW: %s writing star %04X at %08X...\n", whoName[who], data, offset);//*/ + + jaguarMainRam[(offset+0) & 0x3FFFFF] = data >> 8; + jaguarMainRam[(offset+1) & 0x3FFFFF] = data & 0xFF; return; } else if (offset >= 0xDFFF00 && offset <= 0xDFFFFE) @@ -642,6 +1013,15 @@ uint32 JaguarReadLong(uint32 offset, uint32 who/*=UNKNOWN*/) // We really should re-do this so that it does *real* 32-bit access... !!! FIX !!! void JaguarWriteLong(uint32 offset, uint32 data, uint32 who/*=UNKNOWN*/) { +/* extern bool doDSPDis; + if (offset < 0x400 && !doDSPDis) + { + WriteLog("JLW: Write to %08X by %s... Starting DSP log!\n\n", offset, whoName[who]); + doDSPDis = true; + }//*/ +/*if (offset == 0x0100)//64*4) + WriteLog("M68K: %s wrote dword to VI vector value %08X...\n", whoName[who], data);//*/ + JaguarWriteWord(offset, data >> 16, who); JaguarWriteWord(offset+2, data & 0xFFFF, who); } @@ -649,47 +1029,67 @@ void JaguarWriteLong(uint32 offset, uint32 data, uint32 who/*=UNKNOWN*/) // // Jaguar console initialization // -void jaguar_init(void) +void JaguarInit(void) { #ifdef CPU_DEBUG_MEMORY memset(readMem, 0x00, 0x400000); memset(writeMemMin, 0xFF, 0x400000); memset(writeMemMax, 0x00, 0x400000); #endif - 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); + memory_malloc_secure((void **)&jaguarMainRam, 0x400000, "Jaguar 68K CPU RAM"); + memory_malloc_secure((void **)&jaguarMainRom, 0x600000, "Jaguar 68K CPU ROM"); + memory_malloc_secure((void **)&jaguarBootRom, 0x040000, "Jaguar 68K CPU BIOS ROM"); // Only uses half of this! + memory_malloc_secure((void **)&jaguarCDBootROM, 0x040000, "Jaguar 68K CPU CD BIOS ROM"); + memset(jaguarMainRam, 0x00, 0x400000); // memset(jaguar_mainRom, 0xFF, 0x200000); // & set it to all Fs... // memset(jaguar_mainRom, 0x00, 0x200000); // & set it to all 0s... //NOTE: This *doesn't* fix FlipOut... - memset(jaguar_mainRom, 0x01, 0x600000); // & set it to all 01s... - -// 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"); +//Or does it? Hmm... +//Seems to want $01010101... Dunno why. Investigate! + memset(jaguarMainRom, 0x01, 0x600000); // & set it to all 01s... +// memset(jaguar_mainRom, 0xFF, 0x600000); // & set it to all Fs... m68k_set_cpu_type(M68K_CPU_TYPE_68000); - gpu_init(); + GPUInit(); DSPInit(); - tom_init(); - jerry_init(); - cdrom_init(); + TOMInit(); + JERRYInit(); + CDROMInit(); } -void jaguar_done(void) +//New timer based code stuffola... +void ScanlineCallback(void); +void RenderCallback(void); +//extern uint32 * backbuffer; +void JaguarReset(void) { -#ifdef CPU_DEBUG_MEMORY -/* WriteLog("\n\nM68000 disassembly at $8D0D44 (collision routine!)...\n"); - jaguar_dasm(0x8D0D44, 5000); - WriteLog("\n");//*/ -/* WriteLog("\n\nM68000 disassembly at $806300 (look @ $806410)...\n"); - jaguar_dasm(0x806300, 5000); - WriteLog("\n");//*/ +//NOTE: This causes a (virtual) crash if this is set in the config but not found... !!! FIX !!! + if (vjs.useJaguarBIOS) + memcpy(jaguarMainRam, jaguarBootRom, 8); + else + SET32(jaguarMainRam, 4, jaguarRunAddress); + +// WriteLog("jaguar_reset():\n"); + TOMReset(); + JERRYReset(); + GPUReset(); + DSPReset(); + CDROMReset(); + m68k_pulse_reset(); // Reset the 68000 + WriteLog("Jaguar: 68K reset. PC=%06X SP=%08X\n", m68k_get_reg(NULL, M68K_REG_PC), m68k_get_reg(NULL, M68K_REG_A7)); + + // New timer base code stuffola... + InitializeEventList(); + TOMResetBackbuffer(backbuffer); +// SetCallbackTime(ScanlineCallback, 63.5555); + SetCallbackTime(ScanlineCallback, 31.77775); +// SetCallbackTime(RenderCallback, 33303.082); // # Scanlines * scanline time +// SetCallbackTime(RenderCallback, 16651.541); // # Scanlines * scanline time +} +void JaguarDone(void) +{ +#ifdef CPU_DEBUG_MEMORY /* WriteLog("\nJaguar: Memory Usage Stats (return addresses)\n\n"); for(uint32 i=0; i<=raPtr; i++) @@ -756,65 +1156,38 @@ void jaguar_done(void) /* WriteLog("\n\nM68000 disassembly at $90006C...\n"); jaguar_dasm(0x90006C, 500); WriteLog("\n");//*/ +/* WriteLog("\n\nM68000 disassembly at $1AC000...\n"); + jaguar_dasm(0x1AC000, 6000); + 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"); + WriteLog("Jaguar: VBL interrupt is %s\n", ((TOMIRQEnabled(IRQ_VBLANK)) && (JaguarInterruptHandlerIsValid(64))) ? "enabled" : "disabled"); M68K_show_context(); //#endif - cd_bios_done(); - cdrom_done(); - gpu_done(); + CDROMDone(); + GPUDone(); DSPDone(); - tom_done(); - jerry_done(); - - memory_free(jaguar_mainRom); - memory_free(jaguar_bootRom); - memory_free(jaguar_mainRam); -} - -void jaguar_reset(void) -{ - if (vjs.useJaguarBIOS) - 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); - } - } + TOMDone(); + JERRYDone(); -// WriteLog("jaguar_reset():\n"); -//#ifdef SOUND_OUTPUT -// ws_audio_reset(); -//#endif - cd_bios_reset(); - tom_reset(); - jerry_reset(); - gpu_reset(); - DSPReset(); - cdrom_reset(); - m68k_pulse_reset(); // Reset the 68000 - WriteLog("\t68K PC=%06X SP=%08X\n", m68k_get_reg(NULL, M68K_REG_PC), m68k_get_reg(NULL, M68K_REG_A7)); + memory_free(jaguarMainRom); + memory_free(jaguarMainRam); + memory_free(jaguarBootRom); + memory_free(jaguarCDBootROM); } // // Main Jaguar execution loop (1 frame) // -void JaguarExecute(int16 * backbuffer, bool render) +void JaguarExecute(uint32 * backbuffer, bool render) { - uint16 vp = TOMReadWord(0xF0003E) + 1;//Hmm. This is a WO register. Will work? Looks like. But wrong behavior! - uint16 vi = TOMReadWord(0xF0004E);//Another WO register... + uint16 vp = TOMReadWord(0xF0003E) + 1; + uint16 vi = TOMReadWord(0xF0004E); +//Using WO registers is OK, since we're the ones controlling access--there's nothing wrong here! ;-) +//Though we shouldn't be able to do it using TOMReadWord... !!! FIX !!! + // uint16 vdb = TOMReadWord(0xF00046); //Note: This is the *definite* end of the display, though VDE *might* be less than this... // uint16 vbb = TOMReadWord(0xF00040); @@ -824,6 +1197,9 @@ void JaguarExecute(int16 * backbuffer, bool render) // uint16 vde = TOMReadWord(0xF00048); uint16 refreshRate = (vjs.hardwareTypeNTSC ? 60 : 50); +//Not sure the above is correct, since the number of lines and timings given in the JTRM +//seem to indicate the refresh rate is *half* the above... +// uint16 refreshRate = (vjs.hardwareTypeNTSC ? 30 : 25); // Should these be hardwired or read from VP? Yes, from VP! uint32 M68KCyclesPerScanline = (vjs.hardwareTypeNTSC ? M68K_CLOCK_RATE_NTSC : M68K_CLOCK_RATE_PAL) / (vp * refreshRate); @@ -833,44 +1209,56 @@ void JaguarExecute(int16 * backbuffer, bool render) TOMResetBackbuffer(backbuffer); /*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, M68KCyclesPerScanline, RISCCyclesPerScanline); -}//*/ + WriteLog("JagExe: VP=%u, VI=%u, CPU CPS=%u, GPU CPS=%u\n", vp, vi, M68KCyclesPerScanline, RISCCyclesPerScanline);//*/ +//extern int start_logging; for(uint16 i=0; i 0 && TOMIRQEnabled(IRQ_VBLANK)) // 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 its HW registers who sent the interrupt... - tom_set_pending_video_int(); - m68k_set_irq(7); - } + // We don't have to worry about autovectors & whatnot because the Jaguar + // tells you through its HW registers who sent the interrupt... + TOMSetPendingVideoInt(); + m68k_set_irq(7); } - -// uint32 invalid_instruction_address = s68000exec(M68KCyclesPerScanline); -// if (invalid_instruction_address != 0x80000000) -// cd_bios_process(invalid_instruction_address); + +//if (start_logging) +// WriteLog("About to execute M68K (%u)...\n", i); m68k_execute(M68KCyclesPerScanline); - // No CD handling... !!! FIX !!! - cd_bios_exec(i); // NOTE: Ignores parameter... +//if (start_logging) +// WriteLog("About to execute TOM's PIT (%u)...\n", i); TOMExecPIT(RISCCyclesPerScanline); - jerry_pit_exec(RISCCyclesPerScanline); - jerry_i2s_exec(RISCCyclesPerScanline); - gpu_exec(RISCCyclesPerScanline); +//if (start_logging) +// WriteLog("About to execute JERRY's PIT (%u)...\n", i); + JERRYExecPIT(RISCCyclesPerScanline); +//if (start_logging) +// WriteLog("About to execute JERRY's SSI (%u)...\n", i); + JERRYI2SExec(RISCCyclesPerScanline); + BUTCHExec(RISCCyclesPerScanline); +//if (start_logging) +// WriteLog("About to execute GPU (%u)...\n", i); + GPUExec(RISCCyclesPerScanline); if (vjs.DSPEnabled) -// DSPExec(RISCCyclesPerScanline); -// Do pipelined DSP execution... - DSPExecP3(RISCCyclesPerScanline); + { + if (vjs.usePipelinedDSP) + DSPExecP2(RISCCyclesPerScanline); // Pipelined DSP execution (3 stage)... + else + DSPExec(RISCCyclesPerScanline); // Ordinary non-pipelined DSP +// DSPExecComp(RISCCyclesPerScanline); // Comparison core + } +//if (start_logging) +// WriteLog("About to execute OP (%u)...\n", i); TOMExecScanline(i, render); } } @@ -884,11 +1272,202 @@ void DumpMainMemory(void) if (fp == NULL) return; - fwrite(jaguar_mainRam, 1, 0x400000, fp); + fwrite(jaguarMainRam, 1, 0x400000, fp); fclose(fp); } uint8 * GetRamPtr(void) { - return jaguar_mainRam; + return jaguarMainRam; +} + +// +// New Jaguar execution stack +// + +#if 0 + +void JaguarExecuteNew(void) +{ + extern bool finished, showGUI; + extern bool debounceRunKey; + // Pass a message to the "joystick" code to debounce the ESC key... + debounceRunKey = true; + finished = false; +/* InitializeEventList(); + TOMResetBackbuffer(backbuffer); +// SetCallbackTime(ScanlineCallback, 63.5555); + SetCallbackTime(ScanlineCallback, 31.77775); +// SetCallbackTime(RenderCallback, 33303.082); // # Scanlines * scanline time +// SetCallbackTime(RenderCallback, 16651.541); // # Scanlines * scanline time//*/ +// uint8 * keystate = SDL_GetKeyState(NULL); + + do + { + double timeToNextEvent = GetTimeToNextEvent(); +//WriteLog("JEN: Time to next event (%u) is %f usec (%u RISC cycles)...\n", nextEvent, timeToNextEvent, USEC_TO_RISC_CYCLES(timeToNextEvent)); + + m68k_execute(USEC_TO_M68K_CYCLES(timeToNextEvent)); + gpu_exec(USEC_TO_RISC_CYCLES(timeToNextEvent)); + + if (vjs.DSPEnabled) + { + if (vjs.usePipelinedDSP) + DSPExecP2(USEC_TO_RISC_CYCLES(timeToNextEvent)); // Pipelined DSP execution (3 stage)... + else + DSPExec(USEC_TO_RISC_CYCLES(timeToNextEvent)); // Ordinary non-pipelined DSP + } + + HandleNextEvent(); + +// if (keystate[SDLK_ESCAPE]) +// break; + +// SDL_PumpEvents(); // Needed to keep the keystate current... + } + while (!finished); +} + +void ScanlineCallback(void) +{ + uint16 vc = TOMReadWord(0xF00006); + uint16 vp = TOMReadWord(0xF0003E) + 1; + uint16 vi = TOMReadWord(0xF0004E); +// uint16 vbb = TOMReadWord(0xF00040); + vc++; + + if (vc >= vp) + vc = 0; + +//WriteLog("SLC: Currently on line %u (VP=%u)...\n", vc, vp); + TOMWriteWord(0xF00006, vc); + +//This is a crappy kludge, but maybe it'll work for now... +//Maybe it's not so bad, since the IRQ happens on a scanline boundary... + if (vc == vi && vc > 0 && tom_irq_enabled(IRQ_VBLANK)) // Time for Vertical Interrupt? + { + // We don't have to worry about autovectors & whatnot because the Jaguar + // tells you through its HW registers who sent the interrupt... + tom_set_pending_video_int(); + m68k_set_irq(7); + } + + TOMExecScanline(vc, true); + +//Change this to VBB??? +//Doesn't seem to matter (at least for Flip Out & I-War) + if (vc == 0) +// if (vc == vbb) + { +joystick_exec(); + + RenderBackbuffer(); + TOMResetBackbuffer(backbuffer); + }//*/ + +// if (vc == 0) +// TOMResetBackbuffer(backbuffer); + +// SetCallbackTime(ScanlineCallback, 63.5555); + SetCallbackTime(ScanlineCallback, 31.77775); +} + +#else + +bool frameDone; +void JaguarExecuteNew(void) +{ +// extern bool finished, showGUI; +// extern bool debounceRunKey; + // Pass a message to the "joystick" code to debounce the ESC key... +// debounceRunKey = true; +// finished = false; +/* InitializeEventList(); + TOMResetBackbuffer(backbuffer); +// SetCallbackTime(ScanlineCallback, 63.5555); + SetCallbackTime(ScanlineCallback, 31.77775); +// SetCallbackTime(RenderCallback, 33303.082); // # Scanlines * scanline time +// SetCallbackTime(RenderCallback, 16651.541); // # Scanlines * scanline time//*/ +// uint8 * keystate = SDL_GetKeyState(NULL); + frameDone = false; + + do + { + double timeToNextEvent = GetTimeToNextEvent(); +//WriteLog("JEN: Time to next event (%u) is %f usec (%u RISC cycles)...\n", nextEvent, timeToNextEvent, USEC_TO_RISC_CYCLES(timeToNextEvent)); + + m68k_execute(USEC_TO_M68K_CYCLES(timeToNextEvent)); + GPUExec(USEC_TO_RISC_CYCLES(timeToNextEvent)); + + if (vjs.DSPEnabled) + { + if (vjs.usePipelinedDSP) + DSPExecP2(USEC_TO_RISC_CYCLES(timeToNextEvent)); // Pipelined DSP execution (3 stage)... + else + DSPExec(USEC_TO_RISC_CYCLES(timeToNextEvent)); // Ordinary non-pipelined DSP + } + + HandleNextEvent(); + +// if (keystate[SDLK_ESCAPE]) +// break; + +// SDL_PumpEvents(); // Needed to keep the keystate current... + } + while (!frameDone); +} + +void ScanlineCallback(void) +{ + uint16 vc = TOMReadWord(0xF00006); + uint16 vp = TOMReadWord(0xF0003E) + 1; + uint16 vi = TOMReadWord(0xF0004E); +// uint16 vbb = TOMReadWord(0xF00040); + vc++; + + if (vc >= vp) + vc = 0; + +//WriteLog("SLC: Currently on line %u (VP=%u)...\n", vc, vp); + TOMWriteWord(0xF00006, vc); + +//This is a crappy kludge, but maybe it'll work for now... +//Maybe it's not so bad, since the IRQ happens on a scanline boundary... + if (vc == vi && vc > 0 && TOMIRQEnabled(IRQ_VBLANK)) // Time for Vertical Interrupt? + { + // We don't have to worry about autovectors & whatnot because the Jaguar + // tells you through its HW registers who sent the interrupt... + TOMSetPendingVideoInt(); + m68k_set_irq(7); + } + + TOMExecScanline(vc, true); + +//Change this to VBB??? +//Doesn't seem to matter (at least for Flip Out & I-War) + if (vc == 0) +// if (vc == vbb) + { + JoystickExec(); + RenderBackbuffer(); + TOMResetBackbuffer(backbuffer); + frameDone = true; + }//*/ + +// if (vc == 0) +// TOMResetBackbuffer(backbuffer); + +// SetCallbackTime(ScanlineCallback, 63.5555); + SetCallbackTime(ScanlineCallback, 31.77775); +} + +#endif + +// This isn't currently used, but maybe it should be... +void RenderCallback(void) +{ + RenderBackbuffer(); + TOMResetBackbuffer(backbuffer); +// SetCallbackTime(RenderCallback, 33303.082); // # Scanlines * scanline time + SetCallbackTime(RenderCallback, 16651.541); // # Scanlines * scanline time }