#include <time.h>
#include "gui.h"
#include "log.h"
+#include "psg.h"
#include "screen.h"
#include "sound.h"
#include "v63701.h"
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 * gram, * grom; // Allocate RAM & ROM pointers
+// Actual memory
+uint8_t gram1[0x10000], gram2[0x10000], grom1[0x10000], grom2[0x10000];
+uint8_t grom3[0x8000], data_rom[0x40000], spr_rom[0x80000], voice_rom[0x20000];
+uint8_t chr_rom[0x60000]; // Character ROM pointer
uint8_t mcuMem[0x10000]; // 64K for MCU
-V6809REGS cpu1, cpu2;
+V6809REGS cpu1, cpu2; // CPU execution contexts
V63701REGS mcu;
bool trace1 = false; // ditto...
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];
Byte input1, input2, input3, input4, input5;
fstream tr; // Tracelog hook
uint16_t pcx; // Where we at?
+// 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 b;
- // $4000-4300 is RAM shared with the microcontroller...
-
if (addr < 0x8000)
{
// Memory shared with MCU (CPU #1 only! CPU #2 does not)
if ((addr >= 0x4000) && (addr <= 0x43FF))
return mcuMem[addr - 0x3000];
+// if ((addr >= 0x4000) && (addr <= 0x41FF))
+// return MCUReadMemory(addr - 0x3000);
+// if ((addr >= 0x4200) && (addr <= 0x43FF))
+// return mcuMem[addr - 0x3000];
- if (addr > 0x5FFF)
- b = data_rom[banksw1 + (addr - 0x6000)]; // Get char data
+ if (addr >= 0x6000)
+ return data_rom[banksw1 + (addr - 0x6000)]; // Get char data
else
- b = gram1[addr];
+ return gram1[addr];
}
- else
- b = grom1[addr];
- return b;
+ return grom1[addr];
}
//
// Write a byte to memory
//
-void WrMem(uint16_t addr, uint8_t b)
+void WrMem(uint16_t address, uint8_t data)
{
extern bool disasm;
extern bool charbase; // Needed for screen. Extern it in it??
#if 0
- if (addr == 0x4182)
+ if (address == 0x4182)
{
WriteLog("\nWriteMem: CPU #1 writing $%02X to $4182!\n\n", b);
}
#endif
#if 0
-if (((addr >= 0x4180) && (addr <= 0x4191)) || (addr == 0x4380))
- printf("WriteMem: CPU #1 writing $%02X to $%04X...\n", b, addr);
+if (((address >= 0x4180) && (address <= 0x4191)) || (address == 0x4380))
+ printf("WriteMem: CPU #1 writing $%02X to $%04X...\n", b, address);
#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 0
- if (addr == 0x4380)
- {
- SpawnSound(FMSOUND, b); // Do FM sound on channel 4
- if (b == 12)
- game_over_switch = 240; // Set game over delay...
- }
-#endif
-// if (addr < 0x423D || addr > 0x425C) // Protect writes to DSWs
-//if (addr == 0x4191)
+ if (address == 0x6000)
+{
+//printf("Spawning VOICE channel #1: $6000=$%02X, $6200=$%02X\n", b, gram1[0x6200]);
+ SpawnSound(GAMESOUND, gram1[0x6200], 0); // Do voice chan 1
+}
+ if (address == 0x6400)
+{
+//printf("Spawning VOICE channel #2: $6400=$%02X, $6600=$%02X\n", b, gram1[0x6600]);
+ SpawnSound(GAMESOUND, gram1[0x6600], 1); // Do voice chan 2
+}
+ if (address == 0x6800)
+ banksw1 = (uint32_t)data << 13; // Set char data bankswitch base address
+ if (address > 0x4284 && address < 0x42A5 && data)
+ SpawnSound(PSGSOUND, address - 0x4285); // Do PSG sound on chans 2, 3
+
+//if ((address >= 0x4284) && (address < 0x42A5))
//{
-// printf("V6809: Writing %02X to $4191...\n", b);
+// printf("WrMem: Wrote $%02X to PSG address $%04X...\n", data, address);
//}
// Memory shared with MCU (CPU #1 only! CPU #2 does not)
- if ((addr >= 0x4000) && (addr <= 0x43FF))
- mcuMem[addr - 0x3000] = b;
+ if ((address >= 0x4000) && (address <= 0x43FF))
+ mcuMem[address - 0x3000] = data;
+// if ((address >= 0x4000) && (address <= 0x41FF))
+// MCUWriteMemory(address - 0x3000, data);
+// if ((address >= 0x4200) && (address <= 0x43FF))
+// mcuMem[address - 0x3000] = data;
else
- gram1[addr] = b;
+ gram1[address] = data;
- if (addr == 0x8800)
- charbase = false; // Char banksw1
- if (addr == 0x8C00)
- charbase = true; // Char banksw2
- if (addr == 0x8400) // Frame go strobe? VBlank acknowledge?
+ if (address == 0x8800)
+ charbase = false; // Char banksw1
+ if (address == 0x8C00)
+ charbase = true; // Char banksw2
+ if (address == 0x8400) // Frame go strobe? VBlank acknowledge?
{
- if (refresh_++ == 1) // 30 Hz...
- {
- BlitChar(screen, chr_rom, gram1);
- refresh_ = (refresh2 ? 1 : 0); // 60/30 Hz...
- }
+ BlitChar(screen, chr_rom, gram1);
// IRQ Ack (may also be frame go...
ClearLineOfCurrentV6809(V6809_ASSERT_LINE_IRQ);
#if 1
if (disasm)
- WriteLog("WriteMem: CPU #1 Acknowledging IRQ...\n", b);
+ WriteLog("WriteMem: CPU #1 Acknowledging IRQ...\n", data);
#endif
}
}
//
-// Read a byte from memory (without touching PC. Not a Fetch!) (2nd processor)
+// Read a byte from memory (2nd processor)
//
-uint8_t RdMemB(uint16_t addr)
+uint8_t RdMemB(uint16_t address)
{
- uint8_t b;
-
- if (addr < 0x8000)
+ if (address < 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)];
+ 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)];
}
- else
- b = grom2[addr];
- return b;
+ return grom2[address];
}
//
// Write a byte to memory (2nd processor)
//
-void WrMemB(uint16_t addr, uint8_t b)
+void WrMemB(uint16_t address, uint8_t data)
{
extern bool disasm;
extern bool charbase;
-#if 0
- if (addr == 0x0182)
- {
- WriteLog("\nWriteMem: CPU #2 writing $%02X to $0182 ($4182)!\n\n", b);
- }
-#endif
-#if 0
-if (((addr >= 0x0180) && (addr <= 0x0191)) || (addr == 0x0380))
- printf("WriteMem: CPU #2 writing $%02X to $%04X...\n", b, addr);
-#endif
+ // Set sprite data bank switch
+ if (address == 0xD803)
+ banksw2 = (uint32_t)(data & 0x03) << 13;
-#if 0
- 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
-#endif
- if (addr == 0xD803)
- banksw2 = (uint32_t)(b & 0x03) << 13; // Set sprite data bank switch
-#if 0
- if (addr == 0x0380)
- {
- SpawnSound(FMSOUND, b); // Do FM sound on chan 4
- if (b == 12)
- game_over_switch = 240; // Set game over delay...
- }
-#endif
-// 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)
+ if (address < 0x2000)
+ gram1[address + 0x4000] = data;
+
+ if ((address >= 0x2000) && (address < 0x6000))
+ gram1[address - 0x2000] = data;
+
+ if (address == 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);
+ WriteLog("WriteMem: CPU #2 Acknowledging IRQ...\n", data);
#endif
}
}
uint8_t MCUReadMemory(uint16_t address)
{
if (address < 0x20)
- {
-// printf("V63701 read $%02X from $%02X...\n", memory[address], address);
return InternalRegisterRead(address);
- }
+ else if ((address >= 0x1000) && (address <= 0x113F))
+// else if ((address >= 0x1000) && (address <= 0x11FF))
+ return ReadPSG(address - 0x1000);
else if ((address >= 0x2000) && (address <= 0x2001))
- {
-// return 0; //for now
return YMReadReg(0);
- }
// Various joystick + buttons; all are active low.
else if (address == 0x2020)
- {
-//printf("MCURead: Returning $%02X from $2020...\n", input1.byte);
return input1.byte;
- }
else if (address == 0x2021)
- {
-//extern bool V63701LogGo;
-//if (input2.byte == 0xDF)
-// V63701LogGo = true;
-
-//printf("MCURead: Returning $%02X from $2021...\n", input2.byte);
return input2.byte;
- }
// This is DSW1 & 2. All switch settings are active low.
else if (address == 0x2030)
- {
-//printf("MCURead: Returning $%02X from $2030...\n", input4.byte);
return input4.byte;
- }
else if (address == 0x2031)
- {
-//printf("MCURead: Returning $%02X from $2031...\n", input5.byte);
return input5.byte;
- }
return mcuMem[address];
}
{
static uint8_t ymRegister;
-#if 1
if (address < 0x20)
{
-// printf("V63701 wrote $%02X to $%02X...\n", data, address);
InternalRegisterWrite(address, data);
return;
}
-#endif
-
-//if (address == 0x1191)
-//{
-// printf("V63701: Writing $%02X to $1191...\n", data);
-//}
-#if 0
- // Translate local reads @ $1000-$13FF to $4000-$43FF in shared RAM
- if ((address >= 0x1000) && (address <= 0x13FF))
+ else if (((address >= 0x4000) && (address <= 0xBFFF))
+ || (address >= 0xF000))
+ return;
+ else if ((address >= 0x1000) && (address <= 0x113F))
+// else if ((address >= 0x1000) && (address <= 0x11FF))
{
- gram1[0x3000 + address] = data;
+ WritePSG(address - 0x1000, data);
return;
}
-#endif
-
- if (((address >= 0x4000) && (address <= 0xBFFF))
- || (address >= 0xF000))
- return;
else if (address == 0x2000)
{
ymRegister = data;
}
else if (address == 0x2001)
{
-//printf("Writing $%02X to YM2151 register $%02X...\n", data, ymRegister);
YMWriteReg(0, ymRegister, data);
return;
}
}
+#if 0
//
// Load PSG samples from disk
//
}
}
}
-
-
-#if 0
-//
-// 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)
- continue;
-
- 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;
- printf("Found sample file: %s\t[Length: %u]\n", file, len);
- }
-
- fp.close();
- }
-}
#endif
+FILE * psg1, * psg2;
//
uint16_t debounce = 0; // Key de-bounce counter
uint16_t fire_debounce = 0; // Fire button debounce counter
uint8_t x; // General placeholder...
- bool active = true; // Program running flag
+// bool active = true; // Program running flag
SDL_Event event; // SDL "event"
extern uint8_t palette[768]; // Screen physical palette
if (!LoadImg(ROM3, grom3, 0, 0x8000)) // Load 3rd ROM into its own space
{ cout << "Could not open file '" << ROM3 << "'!" << endl; 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(ROM17, data_rom, 0, 0x10000)) // Load 17th ROM
{ cout << "Could not open file '" << ROM17 << "'!" << endl; return -1; }
if (!LoadImg(ROM4, mcuMem, 0x4000, 0x8000)) // Load 4th ROM
{ cout << "Could not open file '" << ROM4 << "'!" << endl; return -1; }
- // Load samples if they're there...
- LoadPSGs();
-// LoadFMs();
+// Now emulated! :-D
+ // Load PSG samples if they're there...
+// LoadPSGs();
// Set up V6809 execution contexts
mcu.WrMem = MCUWriteMemory;
mcu.cpuFlags |= V63701_ASSERT_LINE_RESET;
- uint32_t my_clock = 0;
+// uint32_t my_clock = 0;
running = true; // Set running status...
- trace1 = false;
- SetRefreshRate(refresh2); // Tell GUI our refresh rate
+// trace1 = false;
+// SetRefreshRate(refresh2); // Tell GUI our refresh rate
// Set all inputs to inactive...
input1.byte = input2.byte = input3.byte = input4.byte = input5.byte = 0xFF;
#endif
banksw1 = 0; // Will this work?
banksw2 = 0;
-// iclock = 0; // Reset instr clock #1...
InitGUI(); // Reset # of coins
WriteLog("About to set up screen...\n");
oldTicks = SDL_GetTicks();
WriteLog("About to set up audio...\n");
-#if 0
- // 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!
-#else
InitSound();
-#endif
memset(scrBuffer, 0xFF, VIRTUAL_SCREEN_WIDTH*VIRTUAL_SCREEN_HEIGHT*sizeof(uint32_t));
RenderScreenBuffer();
+#if 1
+psg1 = fopen("psgchan1.raw", "wb");
+psg2 = fopen("psgchan3.raw", "wb");
+#endif
+
WriteLog("About to enter main loop...\n");
while (running)
{
//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_Quit();
+#if 1
+fclose(psg1);
+fclose(psg2);
+#endif
+#if 0
// Deallocate sounds if they were loaded
for(int i=0; i<16; i++)
if (psg_adrs[i])
delete[] psg_adrs[i];
-
+#endif
#if 0
for(int i=0; i<14; i++)
if (fm_adrs[i])
projects / thunder / blobdiff