X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthunder.cpp;h=2914a96c5ae80eab26a7347e3e388609e6aa77ca;hb=a046907b274eb0cfa9c10a4c68fb38255f96714c;hp=9439026682dab5eb03a272f204baabbe473c0a4d;hpb=756fbabdd25117272164fd2d31810e6018a5990e;p=thunder diff --git a/src/thunder.cpp b/src/thunder.cpp index 9439026..2914a96 100644 --- a/src/thunder.cpp +++ b/src/thunder.cpp @@ -1,8 +1,8 @@ // -// Thunder: A Rolling Thunder Emulator w/6809 debugger +// Thunder: A Rolling Thunder Emulator // // by James Hammons -// (C) 2004, 2014 Underground Software +// (C) 2004, 2023 Underground Software // // JLH = James Hammons // @@ -11,30 +11,27 @@ // JLH 07/23/2009 Added changelog ;-) // JLH 08/12/2009 Stabilized emulation so that it works // JLH 04/04/2014 Converted to SDL 2 +// JLH 04/17/2014 Removed a metric fuck-tonne of cruft, added YM2151 & MCU +// JLH 01/13/2023 Finally fixed the sprite lag problem :-D // -#define THUNDER_VERSION "1.0.0" +#define THUNDER_VERSION "1.2.1" -#include -#include -#include +#include #include -#include #include #include #include -//#include // For getch() -#include // For getch() #include -#include // Get yer SDL out...! -#include "v6809.h" -#include "screen.h" #include "gui.h" #include "log.h" +#include "psg.h" +#include "screen.h" +#include "sound.h" +#include "v63701.h" +#include "v6809.h" #include "video.h" - -using namespace std; - +#include "ym2151.h" #define ROM1 "rt3-1b.9c" #define ROM2 "rt3-2b.12c" @@ -65,656 +62,194 @@ using namespace std; #define PROM5 "mb7112e.6u" #define MCUROM "rt1-mcu.bin" - // Global defines -SDL_Surface * screen; - -uint8_t * gram, * grom; // Allocate RAM & ROM pointers -uint8_t gram1[0x10000], gram2[0x10000], grom1[0x10000], grom2[0x10000]; // Actual memory -uint8_t grom3[0x8000], grom4[0x8000], data_rom[0x40000], spr_rom[0x80000], voice_rom[0x20000]; -uint8_t chr_rom[0x60000]; // Character ROM pointer +uint8_t gram1[0x10000], grom1[0x10000], grom2[0x10000]; +uint8_t grom3[0x8000], data_rom[0x40000], spr_rom[0x80000], voice_rom[0x20000]; +uint8_t charROM[0x60000]; // Character ROM +uint8_t mcuMem[0x10000]; // 64K for MCU +// CPU execution contexts V6809REGS cpu1, cpu2; +V63701REGS mcu; + +// Bank switch addresses +uint32_t banksw1, banksw2; -bool trace1 = false; // ditto... -bool looking_at_rom = true; // true = R1, false = R2 -uint32_t banksw1, banksw2; // Bank switch addresses -uint16_t game_over_switch; // Game over delay -uint16_t dpc; // Debug pc reg... -bool show_scr = true; // Whether or not to show background -bool enable_cpu = true; // Whether or not to enable CPUs -bool irqGoA = true; // IRQ switch for CPU #1 -bool irqGoB = true; // IRQ switch for CPU #2 - -uint16_t refresh_ = 0; // Crappy global screen stuff... -bool refresh2 = true; - -uint32_t psg_lens[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; -uint8_t * psg_adrs[16]; -uint32_t voc_lens[32] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; -uint8_t * voc_adrs[32]; -uint32_t fm_lens[14] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; -uint8_t * fm_adrs[14]; - -fstream tr; // Tracelog hook -uint16_t pcx; // Where we at? - -//kludge, for now -//static uint8_t keys[0x1000]; // SDL raw keyboard matrix - -static char op_mat1[256] = { - 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, - 0, 0, 5, 5, 0, 0, 4, 4, 0, 5, 8, 0, 8, 5, 6, 6, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 7, 7, 7, 7, 6, 6, 6, 6, 0, 5, 5, 5, 8, 5, 5, 5, - 5, 0, 0, 5, 5, 0, 5, 5, 5, 5, 5, 0, 5, 5, 0, 5, - 5, 0, 0, 5, 5, 0, 5, 5, 5, 5, 5, 0, 5, 5, 0, 5, - 7, 0, 0, 7, 7, 0, 7, 7, 7, 7, 7, 0, 7, 7, 7, 7, - 2, 0, 0, 2, 2, 0, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, - 8, 8, 8, 9, 8, 8, 8, 0, 8, 8, 8, 8, 9, 3, 9, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 8, 8, 8, 9, 8, 8, 8, 0, 8, 8, 8, 8, 9, 0, 9, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 }, -op_mat2[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 9, 0, - 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, - 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 7, 7, - 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 2, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 7, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2 }, -op_mat3[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, - 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; -static char mnemonics[256][6] = { - "NEG ","??? ","??? ","COM ","LSR ","??? ","ROR ","ASR ", - "LSL ","ROL ","DEC ","??? ","INC ","TST ","JMP ","CLR ", - "PAGE1","PAGE2","NOP ","SYNC ","??? ","??? ","LBRA ","LBSR ", - "??? ","DAA ","ORCC ","??? ","ANDCC","SEX ","EXG ","TFR ", - "BRA ","BRN ","BHI ","BLS ","BHS ","BLO ","BNE ","BEQ ", - "BVC ","BVS ","BPL ","BMI ","BGE ","BLT ","BGT ","BLE ", - "LEAX ","LEAY ","LEAS ","LEAU ","PSHS ","PULS ","PSHU ","PULU ", - "??? ","RTS ","ABX ","RTI ","CWAI ","MUL ","RESET","SWI ", - "NEGA ","??? ","??? ","COMA ","LSRA ","??? ","RORA ","ASRA ", - "LSLA ","ROLA ","DECA ","??? ","INCA ","TSTA ","??? ","CLRA ", - "NEGB ","??? ","??? ","COMB ","LSRB ","??? ","RORB ","ASRB ", - "LSLB ","ROLB ","DECB ","??? ","INCB ","TSTB ","??? ","CLRB ", - "NEG ","??? ","??? ","COM ","LSR ","??? ","ROR ","ASR ", - "LSL ","ROL ","DEC ","??? ","INC ","TST ","JMP ","CLR ", - "NEG ","??? ","??? ","COM ","LSR ","??? ","ROR ","ASR ", - "LSL ","ROL ","DEC ","??? ","INC ","TST ","JMP ","CLR ", - "SUBA ","CMPA ","SCBA ","SUBD ","ANDA ","BITA ","LDA ","??? ", - "EORA ","ADCA ","ORA ","ADDA ","CMPX ","BSR ","LDX ","??? ", - "SUBA ","CMPA ","SBCA ","SUBD ","ANDA ","BITA ","LDA ","STA ", - "EORA ","ADCA ","ORA ","ADDA ","CMPX ","JSR ","LDX ","STX ", - "SUBA ","CMPA ","SBCA ","SUBD ","ANDA ","BITA ","LDA ","STA ", - "EORA ","ADCA ","ORA ","ADDA ","CMPX ","JSR ","LDX ","STX ", - "SUBA ","CMPA ","SBCA ","SUBD ","ANDA ","BITA ","LDA ","STA ", - "EORA ","ADCA ","ORA ","ADDA ","CMPX ","JSR ","LDX ","STX ", - "SUBB ","CMPB ","SCBB ","ADDD ","ANDB ","BITB ","LDB ","??? ", - "EORB ","ADCB ","ORB ","ADDB ","LDD ","??? ","LDU ","??? ", - "SUBB ","CMPB ","SBCB ","ADDD ","ANDB ","BITB ","LDB ","STB ", - "EORB ","ADCB ","ORB ","ADDB ","LDD ","STD ","LDU ","STU ", - "SUBB ","CMPB ","SBCB ","ADDD ","ANDB ","BITB ","LDB ","STB ", - "EORB ","ADCB ","ORB ","ADDB ","LDD ","STD ","LDU ","STU ", - "SUBB ","CMPB ","SBCB ","ADDD ","ANDB ","BITB ","LDB ","STB ", - "EORB ","ADCB ","ORB ","ADDB ","LDD ","STD ","LDU ","STU " }, -mnemonics2[256][6] = { - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","LBRN ","LBHI ","LBLS ","LBHS ","LBLO ","LBNE ","LBEQ ", - "LBVC ","LBVS ","LBPL ","LBMI ","LBGE ","LBLT ","LBGT ","LBLE ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","SWI2 ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","CMPD ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPY ","??? ","LDY ","??? ", - "??? ","??? ","??? ","CMPD ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPY ","??? ","LDY ","STY ", - "??? ","??? ","??? ","CMPD ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPY ","??? ","LDY ","STY ", - "??? ","??? ","??? ","CMPD ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPY ","??? ","LDY ","STY ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","LDS ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","LDS ","STS ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","LDS ","STS ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","LDS ","STS " }, -mnemonics3[256][6] = { - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","SWI3 ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","CMPU ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPS ","??? ","??? ","??? ", - "??? ","??? ","??? ","CMPU ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPS ","??? ","??? ","??? ", - "??? ","??? ","??? ","CMPU ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPS ","??? ","??? ","??? ", - "??? ","??? ","??? ","CMPU ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","CMPS ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? ", - "??? ","??? ","??? ","??? ","??? ","??? ","??? ","??? " }, -tregs[16][3] = { - "D", "X", "Y", "U", "S", "PC", "??", "??", - "A", "B", "CC", "DP", "??", "??", "??", "??" }, -iregs[4][2] = {"X", "Y", "U", "S" }; +// MCU inputs +Byte input1, input2, input3, input4, input5; +// Copy sprites flag +bool copySprites = false; + +// Function prototypes +uint8_t MCUReadMemory(uint16_t address); +void MCUWriteMemory(uint16_t address, uint8_t data); // -// Read a byte from memory (without touching PC. Not a Fetch!) +// Read a byte from memory // -uint8_t RdMem(uint16_t addr) +uint8_t MainReadMemory(uint16_t addr) { uint8_t b; - // $4000-4300 is RAM shared with the microcontroller... - if (addr < 0x8000) { - if (addr > 0x5FFF) - b = data_rom[banksw1 + (addr - 0x6000)]; // Get char data - else - b = gram1[addr]; - } - else - b = grom1[addr]; - - return b; -} + // Memory shared with MCU (CPU #1 only! CPU #2 does not) + if ((addr >= 0x4000) && (addr <= 0x43FF)) + return mcuMem[addr - 0x3000]; + if (addr >= 0x6000) + return data_rom[banksw1 + (addr - 0x6000)]; // Get char data -// -// Write a byte to memory -// -void WrMem(uint16_t addr, uint8_t b) -{ - extern bool disasm; - extern bool charbase; // Needed for screen. Extern it in it?? - //extern uint16_t sr, ur, xr, yr; // Needed for tracelog - //extern uint16_t pcr; -/* if ((addr>0x40FF) && (addr<0x4390)) - { - tr << hex << addr << ":" << (int)b; - //for(int i=0; i<32; i++) - //{ - // if (gram1[0x4400+i]<0x10) tr << "0"; - // tr << hex << (uint16_t)gram1[0x4400+i] << " "; - //} - tr << endl; - }//*/ -#if 0 - if (addr == 0x4182) - { - WriteLog("\nWriteMem: CPU #1 writing $%02X to $4182!\n\n", b); - } -#endif -#if 1 -if (((addr >= 0x4180) && (addr <= 0x4191)) || (addr == 0x4380)) - printf("WriteMem: CPU #1 writing $%02X to $%04X...\n", b, addr); -#endif - - if (addr == 0x6000) - SpawnSound(GAMESOUND, gram1[0x6200], 0); // Do voice chan 1 - if (addr == 0x6400) - SpawnSound(GAMESOUND, gram1[0x6600], 1); // Do voice chan 2 - if (addr == 0x6800) - banksw1 = (uint32_t)b << 13; // Set char data bankswitch base address - if (addr > 0x4284 && addr < 0x42A5 && b) - SpawnSound(PSGSOUND, addr - 0x4285); // Do PSG sound on chans 2, 3 - if (addr == 0x4380) - { - SpawnSound(FMSOUND, b); // Do FM sound on channel 4 - if (b == 12) - game_over_switch = 240; // Set game over delay... + return gram1[addr]; } - if (addr < 0x423D || addr > 0x425C) // Protect writes to DSWs - gram1[addr] = b; - if (addr == 0x8800) - charbase = false; // Char banksw1 - if (addr == 0x8C00) - charbase = true; // Char banksw2 - if (addr == 0x8400) // Frame go strobe? VBlank acknowledge? - { - if (refresh_++ == 1) // 30 Hz... - { - BlitChar(screen, chr_rom, gram1); - refresh_ = (refresh2 ? 1 : 0); // 60/30 Hz... - } - // IRQ Ack (may also be frame go... - ClearLineOfCurrentV6809(V6809_ASSERT_LINE_IRQ); -#if 1 - if (disasm) - WriteLog("WriteMem: CPU #1 Acknowledging IRQ...\n", b); -#endif - } + return grom1[addr]; } - // -// Read a byte from memory (without touching PC. Not a Fetch!) (2nd processor) +// Write a byte to memory // -uint8_t RdMemB(uint16_t addr) +void MainWriteMemory(uint16_t address, uint8_t data) { -// extern uint16_t cpu2.s, cpu2.u, cpu2.x, cpu2.y; // Needed for tracelog - uint8_t b; - - if (addr < 0x8000) - { - if (addr < 0x2000) - b = gram1[addr + 0x4000]; - if (addr > 0x1FFF && addr < 0x6000) - b = gram1[addr - 0x2000]; - if (addr > 0x5FFF) - b = grom3[banksw2 + (addr - 0x6000)]; // Correct? - } + if (address == 0x6000) + SpawnSound(GAMESOUND, gram1[0x6200], 0); // Do voice chan 1 + if (address == 0x6400) + SpawnSound(GAMESOUND, gram1[0x6600], 1); // Do voice chan 2 + if (address == 0x6800) + banksw1 = (uint32_t)data << 13; // Set char data bankswitch base address + + // Memory shared with MCU (CPU #1 only! CPU #2 does not) + if ((address >= 0x4000) && (address <= 0x43FF)) + mcuMem[address - 0x3000] = data; else - b = grom2[addr]; - -/* if ((addr>0x3FFF) && (addr<0x4400)) tr << "R-" << hex << pcx << ": " - << addr << "-" - << (int)looking_at_rom - << " [" << (int)b - << "] XR:" << xr << " YR:" << yr - << " SR:" << sr << " UR:" << ur - << endl; //*/ - return b; + gram1[address] = data; + + if (address == 0x5FF2) + copySprites = true; + if (address == 0x8800) + charBankSwitch = false; // Char banksw1 + if (address == 0x8C00) + charBankSwitch = true; // Char banksw2 + if (address == 0x8400) // Frame go strobe? VBlank acknowledge? + ClearLineOfCurrentV6809(V6809_LINE_IRQ); // IRQ Ack } - // -// Write a byte to memory (2nd processor) +// Read a byte from memory (2nd processor) // -void WrMemB(uint16_t addr, uint8_t b) +uint8_t SubReadMemory(uint16_t address) { - extern bool disasm; - extern bool charbase; - //extern uint16_t sr, ur, xr, yr; // Needed for tracelog - //extern uint16_t pcr; -/* if ((addr>0x00FF) && (addr<0x0390)) - { - tr << hex << addr << ":" << (int)b; - //for(int i=0; i<32; i++) - //{ - // if (gram1[0x4400+i]<0x10) tr << "0"; - // tr << hex << (uint16_t)gram1[0x4400+i] << " "; - //} - tr << endl; - }//*/ -#if 0 - if (addr == 0x0182) + if (address < 0x8000) { - WriteLog("\nWriteMem: CPU #2 writing $%02X to $0182 ($4182)!\n\n", b); + if (address < 0x2000) + return gram1[address + 0x4000]; + else if ((address >= 0x2000) && (address < 0x6000)) + return gram1[address - 0x2000]; + else if (address >= 0x6000) + return grom3[banksw2 + (address - 0x6000)]; } -#endif -#if 1 -if (((addr >= 0x0180) && (addr <= 0x0191)) || (addr == 0x0380)) - printf("WriteMem: CPU #2 writing $%02X to $%04X...\n", b, addr); -#endif - if (addr == 0x6000) - SpawnSound(GAMESOUND, gram1[0x6200], 0); // Do voice chan 1 - if (addr == 0x6400) - SpawnSound(GAMESOUND, gram1[0x6600], 1); // Do voice chan 2 - if (addr > 0x0284 && addr < 0x02A5 && b) - SpawnSound(PSGSOUND, addr - 0x0285); // Do PSG sound on chans 2, 3 - if (addr == 0xD803) - banksw2 = (uint32_t)(b & 0x03) << 13; // Set sprite data bank switch - if (addr == 0x0380) - { - SpawnSound(FMSOUND, b); // Do FM sound on chan 4 - if (b == 12) - game_over_switch = 240; // Set game over delay... - } - if (addr < 0x023D || addr > 0x025C) // Protect writes against DSWs - { - if (addr < 0x2000) - gram1[addr + 0x4000] = b; - if (addr > 0x1FFF && addr < 0x6000) - gram1[addr - 0x2000] = b; - if (addr > 0x5FFF) - gram1[addr] = b; - } - if (addr == 0x8800) - { - // IRQ Ack (may also be frame go...) - ClearLineOfCurrentV6809(V6809_ASSERT_LINE_IRQ); -#if 1 - if (disasm) - WriteLog("WriteMem: CPU #2 Acknowledging IRQ...\n", b); -#endif - } + return grom2[address]; } - // -// Display bytes in mem in hex +// Write a byte to memory (2nd processor) // -void DisplayBytes(uint16_t src, unsigned long dst) +void SubWriteMemory(uint16_t address, uint8_t data) { - uint8_t cnt = 0; - WriteLog("%04X: ", src); - - if (src > dst) - dst += 0x10000; // That should fix the FFFF bug... + // Set sprite data bank switch + if (address == 0xD803) + banksw2 = (uint32_t)(data & 0x03) << 13; - for(unsigned long i=src; i= 0x2000) && (address < 0x6000)) + gram1[address - 0x2000] = data; + if (address == 0x1FF2) + copySprites = true; -// temp crap... -uint8_t Fetch(void) { return RdMem(dpc); } -uint16_t FetchW(void) { return (uint16_t)((RdMem(dpc) << 8) | RdMem(dpc+1)); } -uint8_t FetchB(void) { return RdMemB(dpc); } -uint16_t FetchWB(void) { return (uint16_t)((RdMemB(dpc) << 8) | RdMemB(dpc+1)); } + if (address == 0x8800) + ClearLineOfCurrentV6809(V6809_LINE_IRQ); // IRQ Ack +} +uint8_t MCUReadMemory(uint16_t address) +{ + if (address < 0x20) + return InternalRegisterRead(address); + else if ((address >= 0x1000) && (address <= 0x113F)) + return ReadPSG(address - 0x1000); + else if ((address >= 0x2000) && (address <= 0x2001)) + return YMReadReg(0); + // Various joystick + buttons; all are active low. + else if (address == 0x2020) + return input1.byte; + else if (address == 0x2021) + return input2.byte; + // This is DSW1 & 2. All switch settings are active low. + else if (address == 0x2030) + return input4.byte; + else if (address == 0x2031) + return input5.byte; + + return mcuMem[address]; +} -// -// Decode a 6809 instruction at 'addr' -// -void Decode_6809() +void MCUWriteMemory(uint16_t address, uint8_t data) { - uint8_t (* DFetch)(); // Decode Fetch() pointer... - uint16_t (* DFetchW)(); // Decode FetchW() pointer... - DFetch = (looking_at_rom ? Fetch : FetchB); - DFetchW = (looking_at_rom ? FetchW : FetchWB); - - /* extern*/ uint16_t pcr, pcrB; // Pull in 'pcr' from '6809.cpp' - uint16_t pc_save = pcr, pcB_save = pcrB; - pcr = dpc; pcrB = dpc; - uint8_t opcode = DFetch(); // Get the opcode ('fetch' cycle) - uint8_t opcode2, operand; - uint16_t loperand; - uint8_t admode = op_mat1[opcode]; // addressing mode - char outbuf[80], mnem[6], tmp[30]; - - strcpy(mnem, mnemonics[opcode]); // Copy page 1 opcode - - if (opcode == 0x10) // Extended opcode? - { - opcode2 = DFetch(); // Then get next byte - admode = op_mat2[opcode2]; // And use it as index into 'op_mat2' - strcpy(mnem, mnemonics2[opcode2]); // Overwrite mnemonic - } + static uint8_t ymRegister; - if (opcode == 0x11) // Same as above... + if (address < 0x20) { - opcode2 = DFetch(); - admode = op_mat3[opcode2]; - strcpy(mnem, mnemonics3[opcode2]); // Overwrite mnemonic + InternalRegisterWrite(address, data); + return; } - - // Decode it... - switch (admode) - { - case 0: // Illegal - sprintf(outbuf, "???"); - break; - case 1: // Zero page - operand = DFetch(); // Get ZP address - sprintf(outbuf, "%s $%02X", mnem, operand); - break; - case 2: // Absolute - loperand = DFetchW(); // Get ABS address - sprintf(outbuf, "%s $%04X", mnem, loperand); - break; - case 3: // Relative + else if (((address >= 0x4000) && (address <= 0xBFFF)) + || (address >= 0xF000)) + return; + else if ((address >= 0x1000) && (address <= 0x113F)) { - operand = DFetch(); // Get offset - uint16_t tmpc = (looking_at_rom ? pcr : pcrB); - sprintf(outbuf, "%s $%04X", mnem, tmpc+(int16_t)(int8_t)operand); - break; + WritePSG(address - 0x1000, data); + return; } - case 4: // Long Relative + else if (address == 0x2000) { - loperand = DFetchW(); // Get long offset - uint16_t tmpc = (looking_at_rom ? pcr : pcrB); - sprintf(outbuf, "%s $%04X", mnem, tmpc+(int16_t)loperand); - break; + ymRegister = data; + return; } - case 5: // Inherent - sprintf(outbuf, "%s ", mnem); - break; - case 6: // Txfr/exchg/push/pull + else if (address == 0x2001) { - operand = DFetch(); // Get txfr/exg/push/pull byte - - if ((opcode == 0x1E) || (opcode == 0x1F)) // Is it TXF/EXG? - { - sprintf(tmp, "%s,%s", tregs[operand>>4], tregs[operand&0x0F]); - } - else - { - tmp[0] = 0; - if (operand&0x01) strcat(tmp, "CC "); - if (operand&0x02) strcat(tmp, "A "); - if (operand&0x04) strcat(tmp, "B "); - if (operand&0x08) strcat(tmp, "DP "); - if (operand&0x10) strcat(tmp, "X "); - if (operand&0x20) strcat(tmp, "Y "); - if (operand&0x40) (((opcode==0x34)||(opcode==0x35)) - ? strcat(tmp, "U ") : strcat(tmp, "S ")); - if (operand&0x80) strcat(tmp, "PC"); - } - sprintf(outbuf, "%s %s", mnem, tmp); - break; + YMWriteReg(0, ymRegister, data); + return; } - case 7: // Indexed (the tough one!) - { - operand = DFetch(); // Get IDX byte - uint8_t reg = ((operand & 0x60) >> 5), idxind = ((operand & 0x10) >> 4), - lo_nyb = (operand & 0x0F), boff; - uint16_t woff; - strcpy(tmp, "??"); - - if (!(operand & 0x80)) // Hi bit set? Then decode 4 bit offset - { - sprintf(tmp, "(%d),%s", (idxind ? -(16-lo_nyb) : lo_nyb), - iregs[reg]); - } - else // Add the ($nnnn,R) code dude... - { - if (idxind) - { - switch (lo_nyb) - { - case 1: sprintf(tmp, "(,%s++)", iregs[reg]); break; - case 3: sprintf(tmp, "(,--%s)", iregs[reg]); break; - case 4: sprintf(tmp, "(,%s)", iregs[reg]); break; - case 5: sprintf(tmp, "(B,%s)", iregs[reg]); break; - case 6: sprintf(tmp, "(A,%s)", iregs[reg]); break; - case 8: - { boff = DFetch(); sprintf(tmp, "($%02X,%s)", boff, - iregs[reg]); break; } - case 9: - { woff = DFetchW(); sprintf(tmp, "($%04X,%s)", woff, - iregs[reg]); break; } - case 11: sprintf(tmp, "(D,%s)", iregs[reg]); break; - case 12: - { boff = DFetch(); sprintf(tmp, "($%02X,PC)", boff); break; } - case 13: - { woff = DFetchW(); sprintf(tmp, "($%04X,PC)", woff); break; } - case 15: - { woff = DFetchW(); sprintf(tmp, "[$%04X]", woff); break; } - default: strcpy(tmp, "??"); - } - } - else - { - switch (lo_nyb) - { - case 0: sprintf(tmp, ",%s+", iregs[reg]); break; - case 1: sprintf(tmp, ",%s++", iregs[reg]); break; - case 2: sprintf(tmp, ",-%s", iregs[reg]); break; - case 3: sprintf(tmp, ",--%s", iregs[reg]); break; - case 4: sprintf(tmp, ",%s", iregs[reg]); break; - case 5: sprintf(tmp, "(B),%s", iregs[reg]); break; - case 6: sprintf(tmp, "(A),%s", iregs[reg]); break; - case 8: - { boff = DFetch(); sprintf(tmp, "($%02X),%s", boff, - iregs[reg]); break; } - case 9: - { woff = DFetchW(); sprintf(tmp, "($%04X),%s", woff, - iregs[reg]); break; } - case 11: sprintf(tmp, "(D),%s", iregs[reg]); break; - case 12: - { boff = DFetch(); sprintf(tmp, "($%02X),PC", boff); break; } - case 13: - { woff = DFetchW(); sprintf(tmp, "($%04X),PC", woff); break; } - default: strcpy(tmp, "??"); - } - } - } - - sprintf(outbuf, "%s %s", mnem, tmp); - break; - } - case 8: // Immediate - operand = DFetch(); // Get IMM byte - sprintf(outbuf, "%s #$%02X", mnem, operand); - break; - case 9: // Long Immediate - loperand = DFetchW(); // Get IMM word - sprintf(outbuf, "%s #$%04X", mnem, loperand); - break; - } - - DisplayBytes(dpc, (looking_at_rom ? pcr : pcrB)); // Show bytes - WriteLog(outbuf); - WriteLog("\n"); // display opcode & addressing, etc - dpc = (looking_at_rom ? pcr : pcrB); // Advance debug PC - pcr = pc_save; - pcrB = pcB_save; // Restore PCs + // RAM is from $0 - $3FFF, $C000 - $EFFF + mcuMem[address] = data; } - -// -// Convert hex to dec -// -uint16_t htod(char * str) +uint8_t V63701ReadPort1(void) { - uint16_t value = 0; - int len = strlen(str); - - for(int i=0; i= '0' && str[i] <= '9') - value = (value << 4) | (unsigned)(str[i] - '0'); - else if (str[i] >= 'a' && str[i] <= 'f') - value = (value << 4) | (unsigned)((str[i] - 'a') + 10); - else if (str[i] >= 'A' && str[i] <= 'F') - value = (value << 4) | (unsigned)((str[i] - 'A') + 10); - } - - return value; +// printf("V63701ReadPort1: Read $%02X...\n", input3.byte); + return input3.byte; } - -// -// Load 32K file into ROM image space -// -bool Load32KImg(char * filename, uint16_t address) +uint8_t V63701ReadPort2(void) { -#if 0 - ifstream ff; - char ch; - - ff.open(filename, ios::binary | ios::in); - - if (ff) - { - // Read it in... - for(long i=0; i<32768; i++) - { - ff.get(ch); - grom[address+i] = ch; - } - - ff.close(); - } - - return ff; -#else - FILE * file = fopen(filename, "rb"); - - if (!file) - return false; - - fread(&grom[address], 1, 0x8000, file); + return 0xFF; +} - return true; -#endif +void V63701WritePort1(uint8_t data) +{ +// printf("V63701WritePort1: Wrote $%02X...\n", data); } +void V63701WritePort2(uint8_t data) +{ +// printf("V63701WritePort2: Wrote $%02X...\n", data); +} // // Generic Load file into image space @@ -722,281 +257,154 @@ bool Load32KImg(char * filename, uint16_t address) // bool LoadImg(const char * filename, uint8_t * mem, uint32_t address, uint32_t length) { - ifstream ff; - char path[80]; - char ch; + char path[128]; strcpy(path, "./ROMs/"); strcat(path, filename); -// ff.open(filename, ios::binary | ios::in); // Open 'da file... - ff.open(path, ios::binary | ios::in); // Open 'da file... + FILE * file = fopen(path, "rb"); - if (ff) + if (!file) { - for(uint32_t i=0; i> 4; - b = (uint8_t)c2; + uint8_t c1 = fgetc(file1); + uint8_t c2 = fgetc(file2); + uint8_t r = (uint8_t)c1 & 0x0F; + uint8_t g = (uint8_t)c1 >> 4; + uint8_t b = (uint8_t)c2; palette[i] = 0xFF000000 | (b << 20) | (b << 16) | (g << 12) | (g << 8) | (r << 4) | r; } - ff1.close(); - ff2.close(); + fclose(file1); + fclose(file2); } // PROM5 has the following in it (tile address decoder): - // 00: 00 20 40 60 02 22 42 62 04 24 44 64 06 26 46 66 - // 10: 88 A8 C8 E8 8A AA CA EA 8C AC CC EC 8E AE CE EE + // 00: 00 20 40 60 02 22 42 62 04 24 44 64 06 26 46 66 + // 10: 88 A8 C8 E8 8A AA CA EA 8C AC CC EC 8E AE CE EE - return ff1; -} + if (!file1) + { + printf("Could not open PROM files!\n"); + return false; + } + return true; +} // // Unpack font data // bool UnpackFonts(void) { -// uint8_t b1, b2, b3; - char b1, b2, b3; - fstream f1, f2; - //0x4000 $800 chars - f1.open("./ROMs/"ROM7, ios::binary | ios::in); - f2.open("./ROMs/"ROM8, ios::binary | ios::in); - - if ((!f1) || (!f2)) - return false; // Return if not found... + // 0x4000 $800 chars + FILE * file1 = fopen("./ROMs/" ROM7, "rb"); + FILE * file2 = fopen("./ROMs/" ROM8, "rb"); - for(long i=0; i<0x40000; i+=64) + if (!file1 || !file2) { - for(int j=0; j<64; j+=8) - { - f1.get(b1); f1.get(b2); f2.get(b3); - b3 ^= 0xFF; // Invert top data... - chr_rom[i+j] = ((b3 & 0x80) >> 5) | ((b1 & 0x80) >> 6) | ((b1 & 0x08) >> 3); - chr_rom[i+j+1] = ((b3 & 0x40) >> 4) | ((b1 & 0x40) >> 5) | ((b1 & 0x04) >> 2); - chr_rom[i+j+2] = ((b3 & 0x20) >> 3) | ((b1 & 0x20) >> 4) | ((b1 & 0x02) >> 1); - chr_rom[i+j+3] = ((b3 & 0x10) >> 2) | ((b1 & 0x10) >> 3) | (b1 & 0x01); - chr_rom[i+j+4] = ((b3 & 0x08) >> 1) | ((b2 & 0x80) >> 6) | ((b2 & 0x08) >> 3); - chr_rom[i+j+5] = (b3 & 0x04) | ((b2 & 0x40) >> 5) | ((b2 & 0x04) >> 2); - chr_rom[i+j+6] = ((b3 & 0x02) << 1) | ((b2 & 0x20) >> 4) | ((b2 & 0x02) >> 1); - chr_rom[i+j+7] = ((b3 & 0x01) << 2) | ((b2 & 0x10) >> 3) | (b2 & 0x01); - } + printf("Could not open either " ROM7 " or " ROM8 "!\n"); + return false; } - f1.close(); - f2.close(); - - f1.open("./ROMs/"ROM5, ios::binary | ios::in); - f2.open("./ROMs/"ROM6, ios::binary | ios::in); - - for(long i=0x40000; i<0x60000; i+=64) + for(long i=0; i<0x40000; i+=64) { for(int j=0; j<64; j+=8) { - f1.get(b1); f1.get(b2); f2.get(b3); - b3 ^= 0xFF; // Invert top data - chr_rom[i+j] = ((b3 & 0x80) >> 5) | ((b1 & 0x80) >> 6) | ((b1 & 0x08) >> 3); - chr_rom[i+j+1] = ((b3 & 0x40) >> 4) | ((b1 & 0x40) >> 5) | ((b1 & 0x04) >> 2); - chr_rom[i+j+2] = ((b3 & 0x20) >> 3) | ((b1 & 0x20) >> 4) | ((b1 & 0x02) >> 1); - chr_rom[i+j+3] = ((b3 & 0x10) >> 2) | ((b1 & 0x10) >> 3) | (b1 & 0x01); - chr_rom[i+j+4] = ((b3 & 0x08) >> 1) | ((b2 & 0x80) >> 6) | ((b2 & 0x08) >> 3); - chr_rom[i+j+5] = (b3 & 0x04) | ((b2 & 0x40) >> 5) | ((b2 & 0x04) >> 2); - chr_rom[i+j+6] = ((b3 & 0x02) << 1) | ((b2 & 0x20) >> 4) | ((b2 & 0x02) >> 1); - chr_rom[i+j+7] = ((b3 & 0x01) << 2) | ((b2 & 0x10) >> 3) | (b2 & 0x01); + uint8_t b1 = (uint8_t)fgetc(file1); + uint8_t b2 = (uint8_t)fgetc(file1); + uint8_t b3 = (uint8_t)fgetc(file2) ^ 0xFF; + charROM[i + j + 0] = ((b3 & 0x80) >> 5) | ((b1 & 0x80) >> 6) | ((b1 & 0x08) >> 3); + charROM[i + j + 1] = ((b3 & 0x40) >> 4) | ((b1 & 0x40) >> 5) | ((b1 & 0x04) >> 2); + charROM[i + j + 2] = ((b3 & 0x20) >> 3) | ((b1 & 0x20) >> 4) | ((b1 & 0x02) >> 1); + charROM[i + j + 3] = ((b3 & 0x10) >> 2) | ((b1 & 0x10) >> 3) | (b1 & 0x01); + charROM[i + j + 4] = ((b3 & 0x08) >> 1) | ((b2 & 0x80) >> 6) | ((b2 & 0x08) >> 3); + charROM[i + j + 5] = (b3 & 0x04) | ((b2 & 0x40) >> 5) | ((b2 & 0x04) >> 2); + charROM[i + j + 6] = ((b3 & 0x02) << 1) | ((b2 & 0x20) >> 4) | ((b2 & 0x02) >> 1); + charROM[i + j + 7] = ((b3 & 0x01) << 2) | ((b2 & 0x10) >> 3) | (b2 & 0x01); } } - f1.close(); - f2.close(); + fclose(file1); + fclose(file2); - return true; // Made it! -} - - -// -// Get length of sample from WAV format -// -uint32_t GetWAVLength(fstream & file) -{ - char ch; - uint32_t len; + file1 = fopen("./ROMs/" ROM5, "rb"); + file2 = fopen("./ROMs/" ROM6, "rb"); - file.ignore(16); // Skip header BS - - for(int i=0; i<2; i++) + if (!file1 || !file2) { - file.get(ch); len = (int)(uint8_t)ch; - file.get(ch); len |= (int)(uint8_t)ch << 8; - file.get(ch); len |= (int)(uint8_t)ch << 16; - file.get(ch); len |= (int)(uint8_t)ch << 24; - - file.ignore(len + 4); // Skip intermediate data + printf("Could not open either " ROM5 " or " ROM6 "!\n"); + return false; } - file.get(ch); len = (int)(uint8_t)ch; // & finally get length of data - file.get(ch); len |= (int)(uint8_t)ch << 8; - file.get(ch); len |= (int)(uint8_t)ch << 16; - file.get(ch); len |= (int)(uint8_t)ch << 24; - - return len; -} - - -// -// Load PSG samples from disk -// -void LoadPSGs(void) -{ - char file[40]; - char ch; - uint32_t len; - - for(int i=0; i<16; i++) + for(long i=0x40000; i<0x60000; i+=64) { - fstream fp; - - psg_adrs[i] = NULL; // Zero out pointer - sprintf(file, "./sounds/psg%i.wav", i); // Create filename - - fp.open(file, ios::binary | ios::in); // Attempt to open it... - - if (fp) + for(int j=0; j<64; j+=8) { - len = GetWAVLength(fp); // Get WAV data length... - psg_adrs[i] = new uint8_t[len]; // Attempt to allocate space... - - if (psg_adrs[i] != NULL) - { - for(int j=0; j<(signed)len; j++) - { - fp.get(ch); - psg_adrs[i][j] = ch; // & load it in... - } - - psg_lens[i] = len; -// cout << "Found sample file: " << file << "\t[Length: " << dec << len << "]" << endl; - printf("Found sample file: %s\t[Length: %u]\n", file, len); - } - - fp.close(); + uint8_t b1 = (uint8_t)fgetc(file1); + uint8_t b2 = (uint8_t)fgetc(file1); + uint8_t b3 = (uint8_t)fgetc(file2) ^ 0xFF; + charROM[i + j + 0] = ((b3 & 0x80) >> 5) | ((b1 & 0x80) >> 6) | ((b1 & 0x08) >> 3); + charROM[i + j + 1] = ((b3 & 0x40) >> 4) | ((b1 & 0x40) >> 5) | ((b1 & 0x04) >> 2); + charROM[i + j + 2] = ((b3 & 0x20) >> 3) | ((b1 & 0x20) >> 4) | ((b1 & 0x02) >> 1); + charROM[i + j + 3] = ((b3 & 0x10) >> 2) | ((b1 & 0x10) >> 3) | (b1 & 0x01); + charROM[i + j + 4] = ((b3 & 0x08) >> 1) | ((b2 & 0x80) >> 6) | ((b2 & 0x08) >> 3); + charROM[i + j + 5] = (b3 & 0x04) | ((b2 & 0x40) >> 5) | ((b2 & 0x04) >> 2); + charROM[i + j + 6] = ((b3 & 0x02) << 1) | ((b2 & 0x20) >> 4) | ((b2 & 0x02) >> 1); + charROM[i + j + 7] = ((b3 & 0x01) << 2) | ((b2 & 0x10) >> 3) | (b2 & 0x01); } } -} + fclose(file1); + fclose(file2); -// -// Load FM samples from disk -// -void LoadFMs(void) -{ - char file[200]; - char ch; - uint32_t len; - - for(int i=0; i<14; i++) - { - fstream fp; - - fm_adrs[i] = NULL; // Zero out pointer - sprintf(file, "./sounds/fm%i.wav", i); // Create filename - - fp.open(file, ios::binary | ios::in); // Attempt to open it... - - if (fp) - { - len = GetWAVLength(fp); // Get WAV length... - fm_adrs[i] = new uint8_t[len]; // Attempt to allocate space... - - if (fm_adrs[i] != NULL) - { - for(int j=0; j<(signed)len; j++) - { - fp.get(ch); - fm_adrs[i][j] = ch; // & load it in... - } - - fm_lens[i] = len; -// cout << "Found sample file: " << file << " [Length: " << dec << len << "]" << endl; - printf("Found sample file: %s\t[Length: %u]\n", file, len); - } - - fp.close(); - } - } + return true; } - // // Main loop // @@ -1004,399 +412,322 @@ int main(int argc, char * argv[]) { InitLog("thunder.log"); -extern bool disasm; // From 'V6809.CPP' - extern bool charbase; // From 'SCREEN.CPP' - charbase = false; - - char lbuff[80]; - fstream ff; // Declare fstream without file hooks... - bool brk = false, brk2 = false; // Breakpoint set flag - uint16_t brkpnt, brkpnt2; // Where the breakpoint is... - bool running; // CPU running state flag... - bool self_test = false; // Self-test switch - bool scr_type = false; // false=chars, true=pixels - uint16_t debounce = 0; // Key de-bounce counter - uint16_t fire_debounce = 0; // Fire button debounce counter -// bool refresh2 = true; // Default to 60 Hz... - uint8_t x; // General placeholder... - bool active = true; // Program running flag - - SDL_Event event; // SDL "event" - extern uint8_t palette[768]; // Screen physical palette + bool running; // CPU running state flag... + SDL_Event event; // SDL "event" uint32_t ticks, oldTicks; + uint8_t frameTickCount = 0; - cout << endl << "THUNDER v"THUNDER_VERSION" "; - cout << "by James Hammons" << endl; - cout << "Serial #20149404 / Prerelease" << endl; - cout << "© 2003, 2014 Underground Software" << endl << endl; + printf("THUNDER v" THUNDER_VERSION " by James Hammons\n"); + printf("Serial #20230113 / Prerelease\n"); + printf("© 2003, 2023 Underground Software\n\n"); + printf("This emulator is free software. If you paid for it you were RIPPED OFF\n\n"); - cout << "This emulator is free software. If you paid for it you were RIPPED OFF" - << endl << endl; +// SDL_WM_SetCaption("Thunder v"THUNDER_VERSION" ", "Thunder"); -#if 0 - cout << "Initializing SDL..." << endl; + printf("Loading ROMs...\n"); - if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER) < 0) - { - cout << "Couldn't initialize SDL: " << SDL_GetError() << endl; + if (!ReadColorPROMs()) return -1; - } -#endif - -// SDL_WM_SetCaption("Thunder v"THUNDER_VERSION" ", "Thunder"); -// keys = SDL_GetKeyState(NULL); // Get the SDL keyboard matrix + // Load $8000-$FFFF 1st ROM + if (!LoadImg(ROM1, grom1, 0x8000, 0x8000)) + return -1; - gram = gram1; grom = grom1; // Needed only for debugger + // Load $8000-$FFFF 2nd ROM + if (!LoadImg(ROM2, grom2, 0x8000, 0x8000)) + return -1; -#if 0 - for(long i=0; i<0x10000; i++) - { - gram[i] = 0; grom[i] = 0; // Zero out memory - gram2[i] = 0; grom2[i] = 0; - } -#else - memset(gram, 0, 0x10000); - memset(grom, 0, 0x10000); - memset(gram2, 0, 0x10000); - memset(grom2, 0, 0x10000); -#endif + // Load 3rd ROM into its own space + if (!LoadImg(ROM3, grom3, 0, 0x8000)) + return -1; - game_over_switch = 0; // Init game over delay -// cpu1.a = 0; cpu1.b = 0; cpu1.cc = 0; cpu1.dp = 0; cpu1.x = 0; cpu1.y = 0; cpu1.s = 0; ur = 0; cpu1.pc = 0; + if (!LoadImg(ROM17, data_rom, 0, 0x10000)) + return -1; - cout << "Loading ROMs..." << endl; -// LoadCMOS(); // Load CMOS at $CC00-$CFFF - if (!ReadColorPROMs()) // Load virtual PROMs - { cout << "Could not open PROM files!" << endl; return -1; } + if (!LoadImg(ROM18, data_rom, 0x10000, 0x10000)) + return -1; - if (!LoadImg(ROM1, grom1, 0x8000, 0x8000)) // Load $8000-$FFFF 1st ROM - { cout << "Could not open file '" << ROM1 << "'!" << endl; return -1; } + if (!LoadImg(ROM19, data_rom, 0x20000, 0x10000)) + return -1; - if (!LoadImg(ROM2, grom2, 0x8000, 0x8000)) // Load $8000-$FFFF 2nd ROM - { cout << "Could not open file '" << ROM2 << "'!" << endl; return -1; } + if (!LoadImg(ROM20, data_rom, 0x30000, 0x10000)) + return -1; - if (!LoadImg(ROM3, grom3, 0, 0x8000)) // Load 3rd ROM into its own space - { cout << "Could not open file '" << ROM3 << "'!" << endl; return -1; } + if (!LoadImg(ROM9, spr_rom, 0, 0x10000)) + return -1; - if (!LoadImg(ROM4, grom4, 0, 0x8000)) // Load 4rd ROM into its own space - { cout << "Could not open file '" << ROM4 << "'!" << endl; return -1; } + if (!LoadImg(ROM10, spr_rom, 0x10000, 0x10000)) + return -1; - if (!LoadImg(ROM17, data_rom, 0, 0x10000)) // Load 17th ROM - { cout << "Could not open file '" << ROM17 << "'!" << endl; return -1; } + if (!LoadImg(ROM11, spr_rom, 0x20000, 0x10000)) + return -1; - if (!LoadImg(ROM18, data_rom, 0x10000, 0x10000)) // Load 18th ROM - { cout << "Could not open file '" << ROM18 << "'!" << endl; return -1; } + if (!LoadImg(ROM12, spr_rom, 0x30000, 0x10000)) + return -1; - if (!LoadImg(ROM19, data_rom, 0x20000, 0x10000)) // Load 19th ROM - { cout << "Could not open file '" << ROM19 << "'!" << endl; return -1; } + if (!LoadImg(ROM13, spr_rom, 0x40000, 0x10000)) + return -1; - if (!LoadImg(ROM20, data_rom, 0x30000, 0x10000)) // Load 20th ROM - { cout << "Could not open file '" << ROM20 << "'!" << endl; return -1; } + if (!LoadImg(ROM14, spr_rom, 0x50000, 0x10000)) + return -1; - if (!LoadImg(ROM9, spr_rom, 0, 0x10000)) // Load 9th ROM - { cout << "Could not open file '" << ROM9 << "'!" << endl; return -1; } + if (!LoadImg(ROM15, spr_rom, 0x60000, 0x10000)) + return -1; - if (!LoadImg(ROM10, spr_rom, 0x10000, 0x10000)) // Load 10th ROM - { cout << "Could not open file '" << ROM10 << "'!" << endl; return -1; } + if (!LoadImg(ROM16, spr_rom, 0x70000, 0x10000)) + return -1; - if (!LoadImg(ROM11, spr_rom, 0x20000, 0x10000)) // Load 11th ROM - { cout << "Could not open file '" << ROM11 << "'!" << endl; return -1; } + if (!LoadImg(ROM21, voice_rom, 0, 0x10000)) + return -1; - if (!LoadImg(ROM12, spr_rom, 0x30000, 0x10000)) // Load 12th ROM - { cout << "Could not open file '" << ROM12 << "'!" << endl; return -1; } + if (!LoadImg(ROM22, voice_rom, 0x10000, 0x10000)) + return -1; - if (!LoadImg(ROM13, spr_rom, 0x40000, 0x10000)) // Load 13th ROM - { cout << "Could not open file '" << ROM13 << "'!" << endl; return -1; } + // Load 5, 6, 7, 8th ROMs + if (!UnpackFonts()) + return -1; - if (!LoadImg(ROM14, spr_rom, 0x50000, 0x10000)) // Load 14th ROM - { cout << "Could not open file '" << ROM14 << "'!" << endl; return -1; } + // Load MCU program + data + if (!LoadImg(MCUROM, mcuMem, 0xF000, 0x1000)) + return -1; - if (!LoadImg(ROM15, spr_rom, 0x60000, 0x10000)) // Load 15th ROM - { cout << "Could not open file '" << ROM15 << "'!" << endl; return -1; } + if (!LoadImg(ROM4, mcuMem, 0x4000, 0x8000)) + return -1; - if (!LoadImg(ROM16, spr_rom, 0x70000, 0x10000)) // Load 16th ROM - { cout << "Could not open file '" << ROM16 << "'!" << endl; return -1; } + // Set up V6809, V63701 execution contexts + memset(&cpu1, 0, sizeof(V6809REGS)); + cpu1.RdMem = MainReadMemory; + cpu1.WrMem = MainWriteMemory; + cpu1.cpuFlags |= V6809_LINE_RESET; - if (!LoadImg(ROM21, voice_rom, 0, 0x10000)) // Load 21st ROM - { cout << "Could not open file '" << ROM21 << "'!" << endl; return -1; } + memset(&cpu2, 0, sizeof(V6809REGS)); + cpu2.RdMem = SubReadMemory; + cpu2.WrMem = SubWriteMemory; + cpu2.cpuFlags |= V6809_LINE_RESET; + + memset(&mcu, 0, sizeof(V63701REGS)); + mcu.RdMem = MCUReadMemory; + mcu.WrMem = MCUWriteMemory; + mcu.cpuFlags |= V63701_LINE_RESET; + + running = true; + + // Set all inputs to inactive... + input1.byte = input2.byte = input3.byte = 0xFF; + banksw1 = 0; + banksw2 = 0; + InitGUI(); // Reset # of coins + + // Set up DIP switches... + input4.bit.b0 = 1; // DSW B-0: Continues (1 = 6, 0 = 3) + input4.bit.b1 = 1; // DSW B-2: ??? + input4.bit.b2 = 1; // DSW B-4: Difficulty (1 = normal, 0 = easy) + input4.bit.b3 = 1; // DSW B-6: Bonus lives (70K/200K = 1, 100K/300K = 0) + input4.bit.b4 = 1; // DSW A-0: Coin #2 credit + input4.bit.b5 = 1; // DSW A-2: Freeze mode (0 = freeze) + input4.bit.b6 = 1; // DSW A-4: Attract mode sound (1 = on) + input4.bit.b7 = 1; // DSW A-6: Coin #1 credit + + input5.bit.b0 = 1; // DSW B-1: Cabinet type (1 = A, 0 = B) + input5.bit.b1 = 0; // DSW B-3: Level select (0 = on) + input5.bit.b2 = 0; // DSW B-5: Time (1 = 120, 0 = 150) + input5.bit.b3 = 0; // DSW B-7: Lives (1 = 3, 0 = 5) + input5.bit.b4 = 1; // DSW A-1: Coin #2 credit + input5.bit.b5 = 1; // DSW A-3: Invulnerability (0 = on) + input5.bit.b6 = 1; // DSW A-5: Coin #1 credit + input5.bit.b7 = 1; // DSW A-7: Service mode - if (!LoadImg(ROM22, voice_rom, 0x10000, 0x10000)) // Load 22nd ROM - { cout << "Could not open file '" << ROM22 << "'!" << endl; return -1; } +WriteLog("About to set up screen...\n"); + InitVideo(); - if (!UnpackFonts()) // Load 5, 6, 7, 8th ROMs - { - cout << "Could not open font files!" << endl; - return -1; - } + oldTicks = SDL_GetTicks(); - // Load samples if they're there... - LoadPSGs(); - LoadFMs(); - - // Quick 'n' Dirty voice dump (sound 0x0E) -/* uint32_t adc = (voice_rom[26]<<8) | voice_rom[27]; - bool doneWitIt = false; - int crh = 0; - while (!doneWitIt) - { - if (voice_rom[adc] < 0x10) tr << "0"; - tr << hex << (int)voice_rom[adc] << " "; - if (crh++ > 24) { crh = 0; tr << endl; } - if ((voice_rom[adc] == 0xFF) && (voice_rom[adc-1] != 0x00)) - doneWitIt = true; - adc++; - }//*/ - - // Set up V6809 execution contexts +WriteLog("About to set up audio...\n"); + InitSound(); - memset(&cpu1, 0, sizeof(V6809REGS)); - cpu1.RdMem = RdMem; - cpu1.WrMem = WrMem; - cpu1.cpuFlags |= V6809_ASSERT_LINE_RESET; +WriteLog("About to enter main loop...\n"); + while (running) + { +// HandleGUIDebounce(); // Debounce GUI keys - memset(&cpu2, 0, sizeof(V6809REGS)); - cpu2.RdMem = RdMemB; - cpu2.WrMem = WrMemB; - cpu2.cpuFlags |= V6809_ASSERT_LINE_RESET; +// Dipswitches are presented to the main CPUs as 0 or 1 at locations +// $423D - $425B by the MCU - bool firstTime = true; // kludge... + // SDL key handling... -WriteLog("About to go to the main loop...\n"); - while (active) - { - cout << ">"; - if (firstTime) - { - firstTime = false; // crappy kludge... - lbuff[0] = 'r'; - lbuff[1] = 0; - } - else - cin >> lbuff; + SDL_Event event; - if (lbuff[0] == 'd') - { - if (lbuff[1] != 0) - { - lbuff[0] = 32; - dpc = htod(lbuff); - } - printf("%04X: ", dpc); - uint16_t pc_save = cpu1.pc, pcB_save = cpu2.pc; - cpu1.pc = dpc; cpu2.pc = dpc; - for(int i=0; i<16; i++) - printf("%02X ", (looking_at_rom ? Fetch() : FetchB())); - cout << " "; - cpu1.pc = dpc; cpu2.pc = dpc; - for(int i=0; i<16; i++) - { - uint8_t a = (looking_at_rom ? Fetch() : FetchB()); - if (a<10) cout << (char)(a+48); - if ((a>9) && (a<37)) cout << (char)(a+55); - if (a>36) cout << "."; - } - cout << endl; - dpc = (looking_at_rom ? cpu1.pc : cpu2.pc); - cpu1.pc = pc_save; cpu2.pc = pcB_save; - } - else if (lbuff[0] == 'e') - { - if (lbuff[1] != 0) - { - lbuff[0] = 32; - dpc = htod(lbuff); - } - printf("%04X: ", dpc); - for(int i=0; i<16; i++) printf("%02X ", (uint8_t)gram[dpc++]); - cout << endl; - } - else if (lbuff[0] == 'l') + while (SDL_PollEvent(&event)) { - if (lbuff[1] != 0) + switch (event.type) { - lbuff[0] = 32; - dpc = htod(lbuff); - } - for(int i=0; i<23; i++) - Decode_6809(); - } - else if (lbuff[0] == 't') - { - if (lbuff[1] != 0) - { - lbuff[0] = 32; - dpc = htod(lbuff); - } - if (looking_at_rom) - { - cpu1.pc = dpc; - Decode_6809(); - Execute6809(&cpu1, 1); - dpc = cpu1.pc; - printf("A=%02X B=%02X CC=%02X DP=%02X X=%04X Y=%04X S=%04X U=%04X PC=%04X", - cpu1.a, cpu1.b, cpu1.cc, cpu1.dp, cpu1.x, cpu1.y, cpu1.s, cpu1.u, cpu1.pc); - cout << " iclock=" << cpu1.clock << endl; - } - else - { - cpu2.pc = dpc; - Decode_6809(); - Execute6809(&cpu2, 1); - dpc = cpu2.pc; - printf("A=%02X B=%02X CC=%02X DP=%02X X=%04X Y=%04X S=%04X U=%04X PC=%04X", - cpu2.a, cpu2.b, cpu2.cc, cpu2.dp, cpu2.x, cpu2.y, cpu2.s, cpu2.u, cpu2.pc); - cout << " iclock=" << cpu2.clock << endl; - } - } - else if ((lbuff[0] == 'r') || (lbuff[0] == 'c')) // Run/continue... - { -WriteLog("Executing 'run' command...\n"); - uint32_t my_clock = 0; - running = true; // Set running status... - trace1 = false; - SetRefreshRate(refresh2); // Tell GUI our refresh rate - //for(uint16_t i=0; i<0x8000; i++) gram2[i] = grom3[i]; //Temp - - if (lbuff[0] == 'r') // If run, then reset CPUs - { -WriteLog("Executing secondary 'run' command...\n"); -#if 1 - // This is data that is supposed to come from the MCU... So that's why it hangs - gram1[0x4182] = 0xA6; // Temp kludge - gram1[0x4184] = 0xA6; - gram1[0x4183] = 0x00; // More of the same - gram1[0x4185] = 0x00; -#endif - banksw1 = 0; // Will this work? - banksw2 = 0; -// iclock = 0; // Reset instr clock #1... - InitGUI(); // Reset # of coins - -#if 0 - cpu1.pc = ((grom1[0xFFFE]<<8) | grom1[0xFFFF]); // Reset 6809 #1 - if (lbuff[1] != 0) - { - lbuff[0] = 32; cpu1.pc = htod(lbuff); - } - else cpu1.cc = 0xFF; // Set CC register - - cpu2.pc = ((grom2[0xFFFE]<<8) | grom2[0xFFFF]); // Reset 6809 #2 - cpu2.cc = 0xFF; // Set CC register - while(iclock < 8000) // was 17000, 20000, 5000 + case SDL_KEYDOWN: + if (event.key.keysym.sym == SDLK_ESCAPE) + running = false; + // Do PCX snapshot (F4) + else if (event.key.keysym.sym == SDLK_F4) { - Execute6809(&cpu1, 1); Execute6809(&cpu2, 1); +// SpawnSound(USERSOUND, SCAMERA); + SavePCXSnapshot(); } -#endif -#if 0 -WriteLog("--> CPU clock #1: %u\n", cpu1.clock); - // Will *this* help video sync? NO - while (cpu1.clock < 8000) // was 17000, 20000, 5000 - { - Execute6809(&cpu1, 1); - Execute6809(&cpu2, 1); - } -#endif - } +#if 1 + else if (event.key.keysym.sym == SDLK_5) + input1.bit.b5 = 0; + else if (event.key.keysym.sym == SDLK_1) + input1.bit.b6 = 0; + else if (event.key.keysym.sym == SDLK_2) + input2.bit.b6 = 0; + else if (event.key.keysym.sym == SDLK_c) // Left + input3.bit.b5 = 0; + else if (event.key.keysym.sym == SDLK_z) // Right + input3.bit.b4 = 0; + else if (event.key.keysym.sym == SDLK_s) // Up + input2.bit.b2 = 0; + else if (event.key.keysym.sym == SDLK_x) // Down + input1.bit.b2 = 0; + else if (event.key.keysym.sym == SDLK_k) // Jump + input1.bit.b1 = 0; + else if (event.key.keysym.sym == SDLK_l) // Fire + input3.bit.b3 = 0; + + else if (event.key.keysym.sym == SDLK_F1) // Service mode + input5.bit.b7 = !input5.bit.b7; + + else if (event.key.keysym.sym == SDLK_q) + input4.bit.b7 = !input4.bit.b7; + else if (event.key.keysym.sym == SDLK_w) + input5.bit.b6 = !input5.bit.b6; + else if (event.key.keysym.sym == SDLK_e) + input5.bit.b5 = !input5.bit.b5; + else if (event.key.keysym.sym == SDLK_r) + input5.bit.b4 = !input5.bit.b4; + else if (event.key.keysym.sym == SDLK_t) + input5.bit.b3 = !input5.bit.b3; + else if (event.key.keysym.sym == SDLK_y) + input5.bit.b2 = !input5.bit.b2; + else if (event.key.keysym.sym == SDLK_u) + input5.bit.b1 = !input5.bit.b1; + else if (event.key.keysym.sym == SDLK_i) + input5.bit.b0 = !input5.bit.b0; -WriteLog("About to set up screen...\n"); -#if 0 - screen = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH * 2, VIRTUAL_SCREEN_HEIGHT * 2, 8, SDL_SWSURFACE | SDL_DOUBLEBUF); - if (screen == NULL) - { - cout << "Failed to initialize screen!" << endl; - running = false; - } #else - InitVideo(); -#endif - -#if 0 - SDL_Color colors[256]; - - for(int i=0; i<256; i++) - { - colors[i].r = palette[i*3+0]; - colors[i].g = palette[i*3+1]; - colors[i].b = palette[i*3+2]; - } - - SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL, colors, 0, 256); -#endif - -#if 0 - for(int i=0; i<256; i++) - keys[i] = 0; // Clear keyboard buffer... + else if (event.key.keysym.sym == SDLK_1) + input1.bit.b0 = 0; + else if (event.key.keysym.sym == SDLK_2) + input1.bit.b1 = 0; + else if (event.key.keysym.sym == SDLK_3) + input1.bit.b2 = 0; + else if (event.key.keysym.sym == SDLK_4) + input1.bit.b3 = 0; + else if (event.key.keysym.sym == SDLK_5) + input1.bit.b4 = 0; + else if (event.key.keysym.sym == SDLK_6) + input1.bit.b5 = 0; + else if (event.key.keysym.sym == SDLK_7) + input1.bit.b6 = 0; + else if (event.key.keysym.sym == SDLK_8) + input1.bit.b7 = 0; + + else if (event.key.keysym.sym == SDLK_q) + input2.bit.b0 = 0; + else if (event.key.keysym.sym == SDLK_w) + input2.bit.b1 = 0; + else if (event.key.keysym.sym == SDLK_e) + input2.bit.b2 = 0; + else if (event.key.keysym.sym == SDLK_r) + input2.bit.b3 = 0; + else if (event.key.keysym.sym == SDLK_t) + input2.bit.b4 = 0; + else if (event.key.keysym.sym == SDLK_y) + input2.bit.b5 = 0; + else if (event.key.keysym.sym == SDLK_u) + input2.bit.b6 = 0; + else if (event.key.keysym.sym == SDLK_i) + input2.bit.b7 = 0; + + else if (event.key.keysym.sym == SDLK_a) + input3.bit.b0 = 0; + else if (event.key.keysym.sym == SDLK_s) + input3.bit.b1 = 0; + else if (event.key.keysym.sym == SDLK_d) + input3.bit.b2 = 0; + else if (event.key.keysym.sym == SDLK_f) + input3.bit.b3 = 0; + else if (event.key.keysym.sym == SDLK_g) + input3.bit.b4 = 0; #endif - oldTicks = SDL_GetTicks(); - -WriteLog("About to set up audio...\n"); + break; + case SDL_KEYUP: #if 1 - // This crap SHOULD be in sound.cpp (not yet created)... - SDL_AudioSpec desired, obtained; - desired.freq = 22050; - desired.format = AUDIO_U8; - desired.channels = 1; - desired.samples = 600; - desired.callback = SoundFunc; - desired.userdata = NULL; - // Also, should check to see if it got the hardware it needed, correct sample size, etc. - if (SDL_OpenAudio(&desired, &obtained) < 0) - { - cout << "Couldn't open audio: " << SDL_GetError() << endl; - return -1; - } - - SDL_PauseAudio(0); // Get that audio going! + if (event.key.keysym.sym == SDLK_5) + input1.bit.b5 = 1; + else if (event.key.keysym.sym == SDLK_1) + input1.bit.b6 = 1; + else if (event.key.keysym.sym == SDLK_2) + input2.bit.b6 = 1; + else if (event.key.keysym.sym == SDLK_c) + input3.bit.b5 = 1; + else if (event.key.keysym.sym == SDLK_z) + input3.bit.b4 = 1; + else if (event.key.keysym.sym == SDLK_s) + input2.bit.b2 = 1; + else if (event.key.keysym.sym == SDLK_x) + input1.bit.b2 = 1; + else if (event.key.keysym.sym == SDLK_k) // (Q) Jump + input1.bit.b1 = 1; + else if (event.key.keysym.sym == SDLK_l) // (E) Fire + input3.bit.b3 = 1; +#else + if (event.key.keysym.sym == SDLK_1) + input1.bit.b0 = 1; + else if (event.key.keysym.sym == SDLK_2) + input1.bit.b1 = 1; + else if (event.key.keysym.sym == SDLK_3) + input1.bit.b2 = 1; + else if (event.key.keysym.sym == SDLK_4) + input1.bit.b3 = 1; + else if (event.key.keysym.sym == SDLK_5) + input1.bit.b4 = 1; + else if (event.key.keysym.sym == SDLK_6) + input1.bit.b5 = 1; + else if (event.key.keysym.sym == SDLK_7) + input1.bit.b6 = 1; + else if (event.key.keysym.sym == SDLK_8) + input1.bit.b7 = 1; + + else if (event.key.keysym.sym == SDLK_q) + input2.bit.b0 = 1; + else if (event.key.keysym.sym == SDLK_w) + input2.bit.b1 = 1; + else if (event.key.keysym.sym == SDLK_e) + input2.bit.b2 = 1; + else if (event.key.keysym.sym == SDLK_r) + input2.bit.b3 = 1; + else if (event.key.keysym.sym == SDLK_t) + input2.bit.b4 = 1; + else if (event.key.keysym.sym == SDLK_y) + input2.bit.b5 = 1; + else if (event.key.keysym.sym == SDLK_u) + input2.bit.b6 = 1; + else if (event.key.keysym.sym == SDLK_i) + input2.bit.b7 = 1; + + else if (event.key.keysym.sym == SDLK_a) + input3.bit.b0 = 1; + else if (event.key.keysym.sym == SDLK_s) + input3.bit.b1 = 1; + else if (event.key.keysym.sym == SDLK_d) + input3.bit.b2 = 1; + else if (event.key.keysym.sym == SDLK_f) + input3.bit.b3 = 1; + else if (event.key.keysym.sym == SDLK_g) + input3.bit.b4 = 1; #endif -memset(scrBuffer, 0xFF, VIRTUAL_SCREEN_WIDTH*VIRTUAL_SCREEN_HEIGHT*sizeof(uint32_t)); -RenderScreenBuffer(); -WriteLog("About to enter main loop...\n"); - while (running) - { - HandleGUIDebounce(); // Debounce GUI keys - - if (game_over_switch) - { - game_over_switch--; // Countdown... - - if (game_over_switch == 0) - gram1[0x4380] = 0; // Kill music! - } - -//testing... (works) -//gram1[0x423D] = 1; - //gram1[0x423D] = self_test; // Reset DSW1-1 - gram1[0x4268] = 0; // Reset Video test - gram1[0x427A] = 0; gram1[0x427C] = 0; - gram1[0x427B] = 0; gram1[0x427D] = 0; - gram1[0x427E] = 0; gram1[0x427F] = 0; - gram1[0x4280] = 0; gram1[0x4281] = 0; - gram1[0x4276] = 0; gram1[0x426A] = 0; - gram1[0x4278] = 0; gram1[0x426C] = 0; - gram1[0x4262] = 0; gram1[0x4260] = 0; - //gram1[0x4247] = 0; - - // SDL key handling... - -// SDL_PumpEvents(); // Force key events into the buffer. - SDL_Event event; - - while (SDL_PollEvent(&event)) - { - switch (event.type) - { - case SDL_KEYDOWN: - if (event.key.keysym.sym == SDLK_ESCAPE) - running = false; - else if (event.key.keysym.sym == SDLK_F10) - gram1[0x41A5]++; // Coin? (F10) - else if (event.key.keysym.sym == SDLK_c) - gram1[0x418C]++; // ? (C) Start - } - } + break; + } + } #if 0 if (keys[SDLK_ESCAPE]) @@ -1572,51 +903,12 @@ WriteLog("About to enter main loop...\n"); if (keys[SDLK_F7]) SpawnSound(USERSOUND, 0); // Do user sound (F7) - -// if (keys[SDLK_F8]) -// { -// gram1[0x4380] = 0; // (F8) kill music (this worx) -// charbase = false; // Switch chars out... -// } -// if (keys[SDLK_F9]) gram1[0x4285] = 1; // (F9) strobe unknown loc - - if (keys[SDLK_F11]) // (F11) - { - Execute6809(&cpu1, 10); - Execute6809(&cpu2, 10); - } -// } -//F12 is used above, but the values are ignored. So we'll do it here too. - if (keys[SDLK_F12]) - { - cpu1.cpuFlags |= V6809_ASSERT_LINE_RESET; - cpu2.cpuFlags |= V6809_ASSERT_LINE_RESET; - } - - if (keys[SDLK_d]) // (D) start disassembly - disasm = true; -#if 0 - if (keys[SDLK_k]) - gram1[0x5606] = 0x00; - if (keys[SDLK_l]) - { - gram1[0x5607] = 0x01; // Hangs here... (CPU #1 waiting...) - WriteLog("\nMAIN: Stuffed $01 in $5607!!!\n\n"); - } - if (keys[SDLK_o]) - { - gram1[0x5FF3] = 0x02; - WriteLog("\nMAIN: Stuffed $02 in $5FF3!!!\n\n"); - } -#endif #endif - if (enable_cpu) -// if (true) - { - // We can do this here because we're not executing the cores yet. - cpu1.cpuFlags |= V6809_ASSERT_LINE_IRQ; - cpu2.cpuFlags |= V6809_ASSERT_LINE_IRQ; + // We can do this here because we're not executing the cores yet. + cpu1.cpuFlags |= V6809_LINE_IRQ; + cpu2.cpuFlags |= V6809_LINE_IRQ; + mcu.cpuFlags |= V63701_LINE_IRQ; // while (cpu1.clock < 25000) // 1.538 MHz = 25633.333... cycles per frame (1/60 s) // 25600 cycles/frame @@ -1625,291 +917,48 @@ WriteLog("About to enter main loop...\n"); // 40 works, until it doesn't... :-P // 640 * 40 // 800 * 32 +// 20 seems to work... :-) // Interesting, putting IRQs at 30 Hz makes it run at the correct speed. Still hangs in the demo, though. - for(uint32_t i=0; i<640; i++) -// for(uint32_t i=0; i<1280; i++) - { - // Gay, but what are ya gonna do? - // There's better ways, such as keeping track of when slave writes to master, etc... - Execute6809(&cpu1, 40); - Execute6809(&cpu2, 40); - } - } // END: enable_cpu - -// if (refresh_++ == 1) // 30 Hz... -// { -// if (scr_type) -// BlitWilliamsScreen(gram1); // Display the screen... -// else -// BlitChar(screen, chr_rom, gram1); -// refresh_ = (refresh2 ? 1 : 0); // 60/30 Hz... -// } - -#if 0 -//temp, for testing... -BlitChar(screen, chr_rom, gram1); -#endif - // Speed throttling happens here... - while (SDL_GetTicks() - oldTicks < 16) // Actually, it's 16.66... Need to account for that somehow -// while (SDL_GetTicks() - oldTicks < 32) // Actually, it's 16.66... Need to account for that somehow - SDL_Delay(1); // Release our timeslice... - - oldTicks = SDL_GetTicks(); -//cout << "Finished frame..." << endl; - } - -// Stop_audio_output(); -// ReleaseTimer(); -// ReleaseKeyboard(); // Release the interrupt... -// RestoreOldMode(); // Restore screen - if (brk && (cpu1.pc == brkpnt)) - cout << "CPU 1: Break at " << hex << cpu1.pc << endl; - if (brk2 && (cpu2.pc == brkpnt2)) - cout << "CPU 2: Break at " << hex << cpu2.pc << endl; - - lbuff[0] = 'q'; // Temp kludge... - } - else if (lbuff[0] == 'b') // Set/clear breakpoint - { - if (lbuff[1] != 0) - { - lbuff[0] = 32; - brkpnt = htod(lbuff); - brk = true; - cout << "Breakpoint #1 set at " << hex << brkpnt << dec << endl; - } - else - { - brk = false; - cout << "Breakpoint cleared" << endl; - } - } - else if (lbuff[0] == 'a') // Set/clear breakpoint #2 +// for(int i=0; i<640; i++) + for(int i=0; i<1280; i++) { - if (lbuff[1] != 0) - { - lbuff[0] = 32; - brkpnt2 = htod(lbuff); - brk2 = true; - cout << "Breakpoint #2 set at " << hex << brkpnt2 << dec << endl; - } - else - { - brk2 = false; - cout << "Breakpoint cleared" << endl; - } + // Gay, but what are ya gonna do? + // There's better ways, such as keeping track of when slave writes to master, etc... +// Execute6809(&cpu1, 40); +// Execute6809(&cpu2, 40); + Execute6809(&cpu1, 20); + Execute6809(&cpu2, 20); + + // MCU runs at 1,536,000 Hz + // 1536000 / 60 / 640 == 40 +// Execute63701(&mcu, 40); + Execute63701(&mcu, 20); } - else if (lbuff[0] == 'i') // Inspect registers - { - printf("CPU1: A=%02X B=%02X CC=%02X DP=%02X X=%04X Y=%04X S=%04X U=%04X PC=%04X", - cpu1.a, cpu1.b, cpu1.cc, cpu1.dp, cpu1.x, cpu1.y, cpu1.s, cpu1.u, cpu1.pc); - cout << " iclk=" << dec << cpu1.clock << endl; - printf("CPU2: A=%02X B=%02X CC=%02X DP=%02X X=%04X Y=%04X S=%04X U=%04X PC=%04X", - cpu2.a, cpu2.b, cpu2.cc, cpu2.dp, cpu2.x, cpu2.y, cpu2.s, cpu2.u, cpu2.pc); - cout << " iclk=" << dec << cpu2.clock << endl; - - if (brk) - cout << "Breakpoint #1 set at " << hex << brkpnt << dec << endl; - - if (brk2) - cout << "Breakpoint #2 set at " << hex << brkpnt2 << dec << endl; - } - else if (strncmp(lbuff, "swap", 4) == 0) // Swap ROMs - { - looking_at_rom = !looking_at_rom; - cout << "Swapped: Looking at "; - (looking_at_rom ? cout << "ROM #1" : cout << "ROM #2"); - cout << endl; - } - else if (strncmp(lbuff, "seek", 4) == 0) // Seek non-zero bytes in RAM - { - - if (lbuff[4] != 0) - { - for(int i=0; i<4; i++) - lbuff[i] = 32; - dpc = htod(lbuff); - } - - do - { - x = gram1[dpc++]; - } - while ((x == 0) && (dpc != 0xFFFF)); // Keep going until something found - dpc--; - - printf("%04X: ", dpc); // Show data found... - - for(int i=0; i<16; i++) - printf("%02X ", gram1[(uint16_t)(dpc+i)]); - cout << " "; + BlitChar(charROM, gram1); - for(int i=0; i<16; i++) - { - uint8_t a = gram1[dpc++]; - - if (a<10) - cout << (char)(a+48); - if ((a>9) && (a<37)) - cout << (char)(a+55); - if (a>36) - cout << "."; - } - - cout << endl; - } - else if (lbuff[0] == 'v') // View screen + // Make sure that the sprite RAM lags by one frame... :-) + if (copySprites) { - BlitChar(screen, chr_rom, gram1); - getch(); + CopySprites(); + copySprites = false; } - if (lbuff[0] == 'q') - active = false; //break; // Quit - } + frameTickCount++; - SDL_Quit(); // Shut down SDL + if (frameTickCount == 3) + frameTickCount = 0; - for(int i=0; i<16; i++) - if (psg_adrs[i]) - delete[] psg_adrs[i]; // Deallocate if loaded + // Speed throttling happens here... + // Actually, it's 16.66... Need to account for that somehow [DONE] + while (SDL_GetTicks() - oldTicks < (16 + (frameTickCount == 2 ? 1 : 0))) + SDL_Delay(1); // Release our timeslice... - for(int i=0; i<14; i++) - if (fm_adrs[i]) - delete[] fm_adrs[i]; // Deallocate if loaded + oldTicks = SDL_GetTicks(); + } + SDL_Quit(); LogDone(); return 1; } - -#if 0 -Hitachi uC runs at 6.144 MHz -YM2151 runs at 3.579580 MHz - - -Rolling Thunder Memory map --------------------------- -Most of the decoding is done by custom chips (CUS47 and CUS41), so the memory -map is inferred by program behaviour. The customs also handle internally irq -and watchdog. - -The main CPU memory map is the same in all games because CUS47 is used by all -games. The sub CPU and sound CPU, on the other hand, change because CUS41 is -replaced by other chips. - -All RAM is shared between main and sub CPU, except for sound RAM which is -shared between main and sound CPU; the portion of object RAM that is overlapped -by sound RAM is used exclusively by the sub CPU. - -MAIN CPU: - -Address Dir Data Name Description -------------------- --- -------- --------- ----------------------- -000x xxxx xxxx xxxx R/W xxxxxxxx SCROLL0 tilemap 0/1 RAM (shared with sub CPU) -001x xxxx xxxx xxxx R/W xxxxxxxx SCROLL1 tilemap 2/3 RAM (shared with sub CPU) -0100 00xx xxxx xxxx R/W xxxxxxxx SOUND sound RAM (through CUS30, shared with MCU) -0100 0000 xxxx xxxx R/W xxxxxxxx portion holding the sound wave data -0100 0001 00xx xxxx R/W xxxxxxxx portion holding the sound registers -010x xxxx xxxx xxxx R/W xxxxxxxx OBJECT work RAM (shared with sub CPU) [1] -0101 1xxx xxxx xxxx R/W xxxxxxxx portion holding sprite registers -011x xxxx xxxx xxxx R xxxxxxxx ROM 9D program ROM (banked) [2] -1xxx xxxx xxxx xxxx R xxxxxxxx ROM 9C program ROM -1000 00-- ---- ---- W -------- watchdog reset (RES generated by CUS47) -1000 01-- ---- ---- W -------- main CPU irq acknowledge (IRQ generated by CUS47) -1000 1x-- ---- ---- W -------- BANK tile gfx bank select (data is in A10) (latch in CUS47) -1001 00-- ---- -x0x W xxxxxxxx LATCH0 tilemap 0/1 X scroll + priority -1001 00-- ---- -x10 W xxxxxxxx LATCH0 tilemap 0/1 Y scroll -1001 00-- ---- --11 W ------xx BAMNKM ROM 9D bank select -1001 01-- ---- -x0x W xxxxxxxx LATCH1 tilemap 2/3 X scroll + priority -1001 01-- ---- -x10 W xxxxxxxx LATCH1 tilemap 2/3 Y scroll -1001 01-- ---- --11 W ------xx BAMNKS ROM 12D bank select -1100 00-- ---- ---- W xxxxxxxx BACKCOLOR background color - -[1] Note that this is partially overlapped by sound RAM -[2] In Rolling Thunder and others, replaced by the ROM/voice expansion board - - -SUB CPU: - -Address Dir Data Name Description -------------------- --- -------- --------- ----------------------- -000x xxxx xxxx xxxx R/W xxxxxxxx SUBOBJ work RAM (shared with main CPU) -0001 1xxx xxxx xxxx R/W xxxxxxxx portion holding sprite registers -001x xxxx xxxx xxxx R/W xxxxxxxx SUBSCR0 tilemap 0/1 RAM (shared with main CPU) -010x xxxx xxxx xxxx R/W xxxxxxxx SUBSCR1 tilemap 2/3 RAM (shared with main CPU) -011x xxxx xxxx xxxx R xxxxxxxx ROM 12D program ROM (banked) [1] -1xxx xxxx xxxx xxxx R xxxxxxxx ROM 12C program ROM -1000 0--- ---- ---- W -------- watchdog reset (MRESET generated by CUS41) -1000 1--- ---- ---- W -------- main CPU irq acknowledge (generated by CUS41) -1101 0--- ---- -x0x W xxxxxxxx LATCH0 tilemap 0/1 X scroll + priority -1101 0--- ---- -x10 W xxxxxxxx LATCH0 tilemap 0/1 Y scroll -1101 0--- ---- --11 W ------xx BAMNKM ROM 9D bank select -1101 1--- ---- -x0x W xxxxxxxx LATCH1 tilemap 2/3 X scroll + priority -1101 1--- ---- -x10 W xxxxxxxx LATCH1 tilemap 2/3 Y scroll -1101 1--- ---- --11 W ------xx BAMNKS ROM 12D bank select - -[1] Only used by Rolling Thunder - - -MCU: - -Address Dir Data Name Description -------------------- --- -------- --------- ----------------------- -0000 0000 xxxx xxxx MCU internal registers, timers, ports and RAM -0001 xxxx xxxx xxxx R/W xxxxxxxx RAM 3F sound RAM (through CUS30, partially shared with main CPU) -0001 0000 xxxx xxxx R/W xxxxxxxx portion holding the sound wave data -0001 0001 00xx xxxx R/W xxxxxxxx portion holding the sound registers -0010 0--- --00 ---x R/W xxxxxxxx YMCS YM2151 -0010 0--- --01 ---- n.c. -0010 0--- --10 ---- R xxxxxxxx PORTA switch inputs -0010 0--- --11 ---- R xxxxxxxx PORTB dip switches -01xx xxxx xxxx xxxx R xxxxxxxx ROM 6B program ROM (lower half) -10xx xxxx xxxx xxxx R xxxxxxxx ROM 6B program ROM (upper half) -1011 0--- ---- ---- W unknown (CUS41) -1011 1--- ---- ---- W unknown (CUS41) -1111 xxxx xxxx xxxx R xxxxxxxx MCU internal ROM - - -Notes: ------ -- we are using an unusually high CPU interleave factor (800) to avoid hangs - in rthunder. The two 6809 in this game synchronize using a semaphore at - 5606/5607 (CPU1) 1606/1607 (CPU2). CPU1 clears 5606, does some quick things, - and then increments 5606. While it does its quick things (which require - about 40 clock cycles) it expects CPU2 to clear 5607. - Raising the interleave factor to 1000 makes wndrmomo crash during attract - mode. I haven't investigated on the cause. - -- There are two watchdogs, one per CPU (or maybe three). Handling them - separately is necessary to allow entering service mode without manually - resetting in rthunder and genpeitd: only one of the CPUs stops writing to - the watchdog. - -- The sprite hardware buffers spriteram: the program writes the sprite list to - offsets 4-9 of every 16-byte block, then at the end writes to offset 0x1ff2 of - sprite RAM to signal the chip that the list is complete. The chip will copy - the list from 4-9 to 10-15 and use it from there. This has not been verified - on the real hardware, but it is the most logical way of doing it. - Emulating this behaviour and not using an external buffer is important in - rthunder: when you insert a coin, the whole sprite RAM is cleared, but 0x1ff2 - is not written to. If we buffered spriteram to an external buffer, this would - cause dangling sprites because the buffer would not be updated. - -- spriteram buffering fixes sprite lag, but causes a glitch in rthunder when - entering a door. The *closed* door is made of tiles, but the *moving* door is - made of sprites. Since sprites are delayed by 1 frame, when you enter a door - there is one frame where neither the tile-based closed door nor the - sprite-based moving door is shown, so it flickers. This behavior has been - confirmed on a real PCB. - -TODO: ----- -- The two unknown writes for the MCU are probably watchdog reset and irq acknowledge, - but they don't seem to work as expected. During the first few frames they are - written out of order and hooking them up in the usual way causes the MCU to - stop receiving interrupts. - -#endif -