#include "apple2.h"
-#include <SDL.h>
+#include <SDL2/SDL.h>
#include <fstream>
#include <string>
#include <iomanip>
#define THREADED_65C02
#define CPU_THREAD_OVERFLOW_COMPENSATION
-//#define DEBUG_LC
+#define DEBUG_LC
//#define CPU_CLOCK_CHECKING
-#define THREAD_DEBUGGING
+//#define THREAD_DEBUGGING
+#define SOFT_SWITCH_DEBUGGING
// Global variables
-uint8 ram[0x10000], rom[0x10000]; // RAM & ROM spaces
-uint8 ram2[0x10000];
-uint8 diskRom[0x100]; // Disk ROM space
+uint8_t ram[0x10000], rom[0x10000]; // RAM & ROM spaces
+uint8_t ram2[0x10000]; // Auxillary RAM
+uint8_t diskRom[0x100]; // Disk ROM space
V65C02REGS mainCPU; // v65C02 execution context
-uint8 appleType = APPLE_TYPE_II;
+uint8_t appleType = APPLE_TYPE_IIE;
FloppyDrive floppyDrive;
// Local variables
-static uint8 lastKeyPressed = 0;
+static uint8_t lastKeyPressed = 0;
static bool keyDown = false;
+static bool openAppleDown = false;
+static bool closedAppleDown = false;
+static bool store80Mode = false;
+static bool vbl = false;
+static bool slotCXROM = false;
+static bool slotC3ROM = false;
+static bool ramrd = false;
+static bool ramwrt = false;
+static bool altzp = false;
+static bool ioudis = true;
+bool dhires = false;
//static FloppyDrive floppyDrive;
enum { LC_BANK_1, LC_BANK_2 };
-static uint8 visibleBank = LC_BANK_1;
+static uint8_t visibleBank = LC_BANK_1;
static bool readRAM = false;
static bool writeRAM = false;
static bool running = true; // Machine running state flag...
-static uint32 startTicks;
+static uint32_t startTicks;
+static bool pauseMode = false;
static GUI * gui = NULL;
// Local functions (technically, they're global...)
-bool LoadImg(char * filename, uint8 * ram, int size);
-uint8 RdMem(uint16 addr);
-void WrMem(uint16 addr, uint8 b);
+bool LoadImg(char * filename, uint8_t * ram, int size);
+uint8_t RdMem(uint16_t addr);
+void WrMem(uint16_t addr, uint8_t b);
static void SaveApple2State(const char * filename);
static bool LoadApple2State(const char * filename);
static bool cpuFinished = false;
static bool cpuSleep = false;
+
+// NB: Apple //e Manual sez 6502 is running @ 1,022,727 Hz
+
// Let's try a thread...
/*
Here's how it works: Execute 1 frame's worth, then sleep.
#endif
SDL_SemWait(mainSem);
- uint32 cycles = 17066;
+// There are exactly 800 slices of 21.333 cycles per frame, so it works out
+// evenly.
+#if 0
+ uint32_t cycles = 17066;
#ifdef CPU_THREAD_OVERFLOW_COMPENSATION
// ODD! It's closer *without* this overflow compensation. ??? WHY ???
overflow += 0.666666667;
WriteLog("CPU: AdjustLastToggleCycles(mainCPU.clock);\n");
#endif
AdjustLastToggleCycles(mainCPU.clock);
+#else
+#ifdef THREAD_DEBUGGING
+WriteLog("CPU: Execute65C02(&mainCPU, cycles);\n");
+#endif
+ for(int i=0; i<800; i++)
+ {
+ uint32_t cycles = 21;
+ overflow += 0.333333334;
+
+ if (overflow > 1.0)
+ {
+ cycles++;
+ overflow -= 1.0;
+ }
+
+ Execute65C02(&mainCPU, cycles);
+ WriteSampleToBuffer();
+ }
+#endif
+
+//WriteLog("CPUThread: Supposedly end of frame...\n");
#ifdef THREAD_DEBUGGING
WriteLog("CPU: SDL_mutexP(cpuMutex);\n");
}
#endif
+
// Test GUI function
Element * TestWindow(void)
return win;
}
+
Element * QuitEmulator(void)
{
gui->Stop();
return NULL;
}
+
/*
Small Apple II memory map:
// V65C02 read/write memory functions
//
-uint8 RdMem(uint16 addr)
+uint8_t RdMem(uint16_t addr)
{
- uint8 b;
+ uint8_t b;
#if 0
if (addr >= 0xC000 && addr <= 0xC0FF)
{
return lastKeyPressed | (keyDown ? 0x80 : 0x00);
}
- else if ((addr & 0xFFF0) == 0xC010) // Read $C010-$C01F
+// else if ((addr & 0xFFF8) == 0xC010) // Read $C010-$C01F
+ else if (addr == 0xC010)
{
//This is bogus: keyDown is set to false, so return val NEVER is set...
//Fixed...
//Also, this is IIe/IIc only...!
- uint8 retVal = lastKeyPressed | (keyDown ? 0x80 : 0x00);
+ uint8_t retVal = lastKeyPressed | (keyDown ? 0x80 : 0x00);
keyDown = false;
return retVal;
}
+ // These are //e locations
+ else if (addr == 0xC011)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RDBANK2 (read)\n");
+#endif
+ return (visibleBank == LC_BANK_2 ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC012)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RDLCRAM (read)\n");
+#endif
+ return (readRAM ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC013)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RAMRD (read)\n");
+#endif
+ return (ramrd ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC014)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RAMWRT (read)\n");
+#endif
+ return (ramwrt ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC015)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("SLOTCXROM (read)\n");
+#endif
+ return (slotCXROM ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC016)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("ALTZP (read)\n");
+#endif
+ return (altzp ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC017)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("SLOTC3ROM (read)\n");
+#endif
+ return (slotC3ROM ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC018)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("80STORE (read)\n");
+#endif
+ return (store80Mode ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC019)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("VBL (read)\n");
+#endif
+// NB: The doco suggests that this signal goes LOW when in the VBI.
+// Which means that we need to control this by counting lines somewhere.
+ return (vbl ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC01A)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("TEXT (read)\n");
+#endif
+ return (textMode ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC01B)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("MIXED (read)\n");
+#endif
+ return (mixedMode ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC01C)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("PAGE2 (read)\n");
+#endif
+ return (displayPage2 ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC01D)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("HIRES (read)\n");
+#endif
+ return (hiRes ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC01E)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("ALTCHARSET (read)\n");
+#endif
+ return (alternateCharset ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC01F)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("80COL (read)\n");
+#endif
+ return (col80Mode ? 0x80 : 0x00);
+ }
else if ((addr & 0xFFF0) == 0xC030) // Read $C030-$C03F
{
/*
}
else if (addr == 0xC050) // Read $C050
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("TEXT off (read)\n");
+#endif
textMode = false;
}
else if (addr == 0xC051) // Read $C051
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("TEXT on (read)\n");
+#endif
textMode = true;
}
else if (addr == 0xC052) // Read $C052
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("MIXED off (read)\n");
+#endif
mixedMode = false;
}
else if (addr == 0xC053) // Read $C053
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("MIXED on (read)\n");
+#endif
mixedMode = true;
}
else if (addr == 0xC054) // Read $C054
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("PAGE2 off (read)\n");
+#endif
displayPage2 = false;
}
else if (addr == 0xC055) // Read $C055
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("PAGE2 on (read)\n");
+#endif
displayPage2 = true;
}
else if (addr == 0xC056) // Read $C056
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("HIRES off (read)\n");
+#endif
hiRes = false;
}
else if (addr == 0xC057) // Read $C057
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("HIRES on (read)\n");
+#endif
hiRes = true;
}
+ else if (addr == 0xC05E)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("DHIRES on (read)\n");
+#endif
+ if (ioudis)
+ dhires = true;
+ }
+ else if (addr == 0xC05F)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("DHIRES off (read)\n");
+#endif
+ if (ioudis)
+ dhires = false;
+ }
+ else if (addr == 0xC061) // Read $C061
+ {
+ // Open Apple key (or push button 0)
+ return (openAppleDown ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC062) // Read $C062
+ {
+ // Open Apple key (or push button 0)
+ return (closedAppleDown ? 0x80 : 0x00);
+ }
+ // The way the paddles work is that a strobe is written (or read) to $C070,
+ // then software counts down the time that it takes for the paddle outputs
+ // to have bit 7 return to 0. If there are no paddles connected, bit 7
+ // stays at 1.
+ else if (addr == 0xC064) // Paddles 0-3
+ {
+ return 0xFF;
+ }
+ else if (addr == 0xC065)
+ {
+ return 0xFF;
+ }
+ else if (addr == 0xC066)
+ {
+ return 0xFF;
+ }
+ else if (addr == 0xC067)
+ {
+ return 0xFF;
+ }
+ else if (addr == 0xC07E)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("IOUDIS (read)\n");
+#endif
+ return (ioudis ? 0x80 : 0x00);
+ }
+ else if (addr == 0xC07F)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("DHIRES (read)\n");
+#endif
+ return (dhires ? 0x80 : 0x00);
+ }
//Note that this is a kludge: The $D000-$DFFF 4K space is shared (since $C000-$CFFF is
//memory mapped) between TWO banks, and that that $E000-$FFFF RAM space is a single bank.
else if (addr == 0xC0EC)
{
return floppyDrive.ReadWrite();
-//Hm, some stuff is looking at the return value. Dunno what it *should* be...
-// OK, it's from the ReadWrite routine...
-//return 0xFF;
}
else if (addr == 0xC0ED)
{
showpath = true;
#endif
//This sux...
- if (addr >= 0xC100 && addr <= 0xCFFF) // The $C000-$CFFF block is *never* RAM
-#ifdef LC_DEBUGGING
+ if (addr >= 0xC100 && addr <= 0xC7FF) // The $C000-$CFFF block is *never* RAM
{
-#endif
- b = rom[addr];
+// Looks like the ][e ref manual got this one wrong: slotCXROM set should mean
+// use internal ROM, NOT slot ROM. :-/
+// (fixed now, by setting the switch correctly in the write mem section :-P)
+ if (!slotCXROM)
+// if (slotCXROM)
+ b = rom[addr];
+ else
+ {
+ if (addr >= 0xC100 && addr <= 0xC1FF)
+ b = parallelROM[addr & 0xFF];
+ else if (addr >= 0xC600 && addr <= 0xC6FF)
+ b = diskROM[addr & 0xFF];
+ else if (addr >= 0xC300 && addr <= 0xC3FF && !slotC3ROM)
+ b = rom[addr];
+ else
+ b = 0xFF;
+// b = rom[addr];
+ }
#ifdef LC_DEBUGGING
if (showpath)
WriteLog("b is from $C100-$CFFF block...\n");
- }
#endif
+ }
+ else if (addr >= 0xC800 && addr <= 0xCFFF) // 2K peripheral or OS ROM
+ {
+ b = rom[addr];
+ }
else if (addr >= 0xD000)
{
if (readRAM)
{
if (addr <= 0xDFFF && visibleBank == LC_BANK_1)
#ifdef LC_DEBUGGING
- {
+ {
#endif
- b = ram[addr - 0x1000];
+// b = ram[addr - 0x1000];
+ b = (altzp ? ram2[addr - 0x1000] : ram[addr - 0x1000]);
#ifdef LC_DEBUGGING
if (showpath)
WriteLog("b is from LC bank #1 (ram[addr - 0x1000])...\n");
- }
+ }
#endif
else
#ifdef LC_DEBUGGING
- {
+ {
#endif
- b = ram[addr];
+// b = ram[addr];
+ b = (altzp ? ram2[addr] : ram[addr]);
#ifdef LC_DEBUGGING
if (showpath)
WriteLog("b is from LC bank #2 (ram[addr])...\n");
- }
+ }
#endif
}
else
#ifdef LC_DEBUGGING
- {
+ {
#endif
b = rom[addr];
#ifdef LC_DEBUGGING
if (showpath)
WriteLog("b is from LC ROM (rom[addr])...\n");
- }
+ }
#endif
}
else
-#ifdef LC_DEBUGGING
{
+// 80STORE only works for WRITING, not READING!
+#if 0
+ // Check for 80STORE mode (STORE80 takes precedence over RAMRD/WRT)...
+ if ((((addr >= 0x0400) && (addr <= 0x07FF)) || ((addr >= 0x2000) && (addr <= 0x3FFF))) && store80Mode)
+ {
+ if (displayPage2)
+ b = ram2[addr];
+ else
+ b = ram[addr];
+
+ return b;
+ }
#endif
- b = ram[addr];
+
+ // Finally, check for auxillary/altzp write switches
+ if (addr < 0x0200)
+ b = (altzp ? ram2[addr] : ram[addr]);
+ else
+ b = (ramrd ? ram2[addr] : ram[addr]);
#ifdef LC_DEBUGGING
if (showpath)
WriteLog("b is from ram[addr]...\n");
- }
#endif
+ }
#ifdef LC_DEBUGGING
if (addr >= 0xD000 && addr <= 0xD00F)
13 DDRB2 EQU $C482 ;DATA DIRECTION REGISTER (B)
14 DDRA2 EQU $C483 ;DATA DIRECTION REGISTER (A)
*/
-void WrMem(uint16 addr, uint8 b)
+void WrMem(uint16_t addr, uint8_t b)
{
//temp...
//extern V6809REGS regs;
CLRALTCH = $C00E ;use main char set- norm LC, Flash UC (WR-only)
SETALTCH = $C00F ;use alt char set- norm inverse, LC; no Flash (WR-only)
*/
- if (addr == 0xC00E)
+ if (addr == 0xC000)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("80STORE off (write)\n");
+#endif
+ store80Mode = false;
+ }
+ else if (addr == 0xC001)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("80STORE on (write)\n");
+#endif
+ store80Mode = true;
+ }
+ else if (addr == 0xC002)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RAMRD off (write)\n");
+#endif
+ ramrd = false;
+ }
+ else if (addr == 0xC003)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RAMRD on (write)\n");
+#endif
+ ramrd = true;
+ }
+ else if (addr == 0xC004)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RAMWRT off (write)\n");
+#endif
+ ramwrt = false;
+ }
+ else if (addr == 0xC005)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("RAMWRT on (write)\n");
+#endif
+ ramwrt = true;
+ }
+ else if (addr == 0xC006)
+ {
+ // This is the only soft switch that breaks the usual convention.
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("SLOTCXROM on (write)\n");
+#endif
+ slotCXROM = true;
+ }
+ else if (addr == 0xC007)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("SLOTCXROM off (write)\n");
+#endif
+ slotCXROM = false;
+ }
+ else if (addr == 0xC008)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("ALTZP off (write)\n");
+#endif
+ altzp = false;
+ }
+ else if (addr == 0xC009)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("ALTZP on (write)\n");
+#endif
+ altzp = true;
+ }
+ else if (addr == 0xC00A)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("SLOTC3ROM off (write)\n");
+#endif
+ slotC3ROM = false;
+ }
+ else if (addr == 0xC00B)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("SLOTC3ROM on (write)\n");
+#endif
+ slotC3ROM = true;
+ }
+ else if (addr == 0xC00C)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("80COL off (write)\n");
+#endif
+ col80Mode = false;
+ }
+ else if (addr == 0xC00D)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("80COL on (write)\n");
+#endif
+ col80Mode = true;
+ }
+ else if (addr == 0xC00E)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("ALTCHARSET off (write)\n");
+#endif
alternateCharset = false;
}
else if (addr == 0xC00F)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("ALTCHARSET on (write)\n");
+#endif
alternateCharset = true;
}
else if ((addr & 0xFFF0) == 0xC010) // Keyboard strobe
}
else if (addr == 0xC050)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("TEXT off (write)\n");
+#endif
textMode = false;
}
else if (addr == 0xC051)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("TEXT on (write)\n");
+#endif
textMode = true;
}
else if (addr == 0xC052)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("MIXED off (write)\n");
+#endif
mixedMode = false;
}
else if (addr == 0xC053)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("MIXED on (write)\n");
+#endif
mixedMode = true;
}
else if (addr == 0xC054)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("PAGE2 off (write)\n");
+#endif
displayPage2 = false;
}
else if (addr == 0xC055)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("PAGE2 on (write)\n");
+#endif
displayPage2 = true;
}
else if (addr == 0xC056)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("HIRES off (write)\n");
+#endif
hiRes = false;
}
else if (addr == 0xC057)
{
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("HIRES on (write)\n");
+#endif
hiRes = true;
}
+ else if (addr == 0xC05E)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("DHIRES on (write)\n");
+#endif
+ if (ioudis)
+ dhires = true;
+
+//static int goDumpDis = 0;
+//goDumpDis++;
+//if (goDumpDis == 2)
+// dumpDis = true;
+ }
+ else if (addr == 0xC05F)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("DHIRES off (write)\n");
+#endif
+ if (ioudis)
+ dhires = false;
+ }
+ else if (addr == 0xC07E)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("IOUDIS on (write)\n");
+#endif
+ ioudis = true;
+ }
+ else if (addr == 0xC07F)
+ {
+#ifdef SOFT_SWITCH_DEBUGGING
+WriteLog("IOUDIS off (write)\n");
+#endif
+ ioudis = false;
+ }
else if ((addr & 0xFFFB) == 0xC080)
{
#ifdef DEBUG_LC
{
if (writeRAM)
{
+#if 0
if (addr <= 0xDFFF && visibleBank == LC_BANK_1)
ram[addr - 0x1000] = b;
else
ram[addr] = b;
+#else
+ if (addr <= 0xDFFF && visibleBank == LC_BANK_1)
+ {
+ if (altzp)
+ ram2[addr - 0x1000] = b;
+ else
+ ram[addr - 0x1000] = b;
+ }
+ else
+ {
+ if (altzp)
+ ram2[addr] = b;
+ else
+ ram[addr] = b;
+ }
+#endif
}
return;
}
- ram[addr] = b;
+ // Check for 80STORE mode (STORE80 takes precedence over RAMRD/WRT)...
+ if ((((addr >= 0x0400) && (addr <= 0x07FF)) || ((addr >= 0x2000) && (addr <= 0x3FFF))) && store80Mode)
+ {
+ if (displayPage2)
+ ram2[addr] = b;
+ else
+ ram[addr] = b;
+
+ return;
+ }
+
+ // Finally, check for auxillary/altzp write switches
+#if 0
+ if (ramwrt)
+ ram2[addr] = b;
+ else
+ {
+ if (altzp)
+ ram2[addr] = b;
+ else
+ ram[addr] = b;
+ }
+#else
+ if (addr < 0x0200)
+// if (addr < 0x0200 || addr >= 0xD000)
+ {
+#if 0
+if (addr == 0x38)
+ WriteLog("Write $38: $%02X\n", b);
+else if (addr == 0x39)
+ WriteLog("Write $39: $%02X\n", b);
+#endif
+ if (altzp)
+ ram2[addr] = b;
+ else
+ ram[addr] = b;
+ }
+ else
+ {
+ if (ramwrt)
+ ram2[addr] = b;
+ else
+ ram[addr] = b;
+ }
+#endif
}
+
//
// Load a file into RAM/ROM image space
//
-bool LoadImg(char * filename, uint8 * ram, int size)
+bool LoadImg(char * filename, uint8_t * ram, int size)
{
FILE * fp = fopen(filename, "rb");
return true;
}
+
static void SaveApple2State(const char * filename)
{
}
+
static bool LoadApple2State(const char * filename)
{
return false;
}
+
#ifdef CPU_CLOCK_CHECKING
-uint8 counter = 0;
-uint32 totalCPU = 0;
-uint64 lastClock = 0;
+uint8_t counter = 0;
+uint32_t totalCPU = 0;
+uint64_t lastClock = 0;
#endif
//
// Main loop
srand(time(NULL)); // Initialize RNG
// Zero out memory
-//Need to bankify this stuff for the IIe emulation...
memset(ram, 0, 0x10000);
memset(rom, 0, 0x10000);
memset(ram2, 0, 0x10000);
mainCPU.WrMem = WrMem;
mainCPU.cpuFlags |= V65C02_ASSERT_LINE_RESET;
- if (!LoadImg(settings.BIOSPath, rom + 0xD000, 0x3000))
+// alternateCharset = true;
+// if (!LoadImg(settings.BIOSPath, rom + 0xD000, 0x3000))
+ if (!LoadImg(settings.BIOSPath, rom + 0xC000, 0x4000))
{
WriteLog("Could not open file '%s'!\n", settings.BIOSPath);
return -1;
//Kill the DOS ROM in slot 6 for now...
//not
- memcpy(rom + 0xC600, diskROM, 0x100);
+// memcpy(rom + 0xC600, diskROM, 0x100);
+// memcpy(rom + 0xC700, diskROM, 0x100); // Slot 7???
WriteLog("About to initialize video...\n");
+
if (!InitVideo())
{
std::cout << "Aborting!" << std::endl;
WriteLog("About to initialize audio...\n");
SoundInit();
- SDL_EnableUNICODE(1); // Needed to do key translation shit
+//nope SDL_EnableUNICODE(1); // Needed to do key translation shit
// gui = new GUI(surface); // Set up the GUI system object...
- gui = new GUI(mainSurface); // Set up the GUI system object...
+// gui = new GUI(mainSurface); // Set up the GUI system object...
+// SDL 2... this will likely cause Apple 2 to crash
+// gui = new GUI(NULL); // Set up the GUI system object...
#if 0
gui->AddMenuTitle("Apple2");
gui->AddMenuItem("Test!", TestWindow/*, hotkey*/);
#ifdef THREADED_65C02
cpuCond = SDL_CreateCond();
- cpuThread = SDL_CreateThread(CPUThreadFunc, NULL);
-//Hmm... CPU does POST (+1), wait, then WAIT (-1)
mainSem = SDL_CreateSemaphore(1);
+ cpuThread = SDL_CreateThread(CPUThreadFunc, NULL, NULL);
+//Hmm... CPU does POST (+1), wait, then WAIT (-1)
// SDL_sem * mainMutex = SDL_CreateMutex();
#endif
return 0;
}
+
/*
Apple II keycodes
-----------------
ESC $9B $9B $9B $9B No xlation
*/
+//static uint64_t lastCPUCycles = 0;
+static uint32_t frameCount = 0;
static void FrameCallback(void)
{
SDL_Event event;
{
switch (event.type)
{
- case SDL_KEYDOWN:
- if (event.key.keysym.unicode != 0)
- {
+ case SDL_TEXTINPUT:
//Need to do some key translation here, and screen out non-apple keys as well...
- if (event.key.keysym.sym == SDLK_TAB) // Prelim key screening...
- break;
-
- lastKeyPressed = event.key.keysym.unicode;
- keyDown = true;
- //kludge: should have a caps lock thingy here...
- //or all uppercase for ][+...
- if (lastKeyPressed >= 'a' && lastKeyPressed <='z')
- lastKeyPressed &= 0xDF; // Convert to upper case...
- }
+//(really, could do it all in SDL_KEYDOWN, would just have to get symbols &
+// everything else done separately. this is slightly easier. :-P)
+// if (event.key.keysym.sym == SDLK_TAB) // Prelim key screening...
+ if (event.edit.text[0] == '\t') // Prelim key screening...
+ break;
+
+ lastKeyPressed = event.edit.text[0];
+ keyDown = true;
+ //kludge: should have a caps lock thingy here...
+ //or all uppercase for ][+...
+// if (lastKeyPressed >= 'a' && lastKeyPressed <='z')
+// lastKeyPressed &= 0xDF; // Convert to upper case...
+
+ break;
+ case SDL_KEYDOWN:
// CTRL+RESET key emulation (mapped to CTRL+`)
// This doesn't work...
// if (event.key.keysym.sym == SDLK_BREAK && (event.key.keysym.mod & KMOD_CTRL))
lastKeyPressed = 0x15, keyDown = true;
else if (event.key.keysym.sym == SDLK_LEFT)
lastKeyPressed = 0x08, keyDown = true;
+ else if (event.key.keysym.sym == SDLK_UP)
+ lastKeyPressed = 0x0B, keyDown = true;
+ else if (event.key.keysym.sym == SDLK_DOWN)
+ lastKeyPressed = 0x0A, keyDown = true;
+ else if (event.key.keysym.sym == SDLK_RETURN)
+ lastKeyPressed = 0x0D, keyDown = true;
+ else if (event.key.keysym.sym == SDLK_ESCAPE)
+ lastKeyPressed = 0x1B, keyDown = true;
+ else if (event.key.keysym.sym == SDLK_BACKSPACE)
+ lastKeyPressed = 0x7F, keyDown = true;
+
+ // Fix CTRL+key combo...
+ if (event.key.keysym.mod & KMOD_CTRL)
+ {
+ if (event.key.keysym.sym >= SDLK_a && event.key.keysym.sym <= SDLK_z)
+ {
+ lastKeyPressed = (event.key.keysym.sym - SDLK_a) + 1;
+ keyDown = true;
+//printf("Key combo pressed: CTRL+%c\n", lastKeyPressed + 0x40);
+ }
+ }
// Use ALT+Q to exit, as well as the usual window decoration method
if (event.key.keysym.sym == SDLK_q && (event.key.keysym.mod & KMOD_ALT))
running = false;
- if (event.key.keysym.sym == SDLK_F12)
+ if (event.key.keysym.sym == SDLK_PAUSE)
+ {
+ pauseMode = !pauseMode;
+
+ if (pauseMode)
+ {
+ SoundPause();
+ SpawnMessage("*** PAUSED ***");
+ }
+ else
+ {
+ SoundResume();
+ SpawnMessage("*** RESUME ***");
+ }
+ }
+
+ // Paddle buttons 0 & 1
+ if (event.key.keysym.sym == SDLK_INSERT)
+ openAppleDown = true;
+ if (event.key.keysym.sym == SDLK_PAGEUP)
+ closedAppleDown = true;
+
+ if (event.key.keysym.sym == SDLK_F11)
dumpDis = !dumpDis; // Toggle the disassembly process
// else if (event.key.keysym.sym == SDLK_F11)
// floppyDrive.LoadImage("./disks/bt1_char.dsk");//Kludge to load char disk...
SpawnMessage("Volume: %s", volStr);
}
+ static bool fullscreenDebounce = false;
+
+ if (event.key.keysym.sym == SDLK_F12)
+ {
+ if (!fullscreenDebounce)
+ {
+ ToggleFullScreen();
+ fullscreenDebounce = true;
+ }
+ }
+// else
+
+ break;
+ case SDL_KEYUP:
+ if (event.key.keysym.sym == SDLK_F12)
+ fullscreenDebounce = false;
+
+ // Paddle buttons 0 & 1
+ if (event.key.keysym.sym == SDLK_INSERT)
+ openAppleDown = false;
+ if (event.key.keysym.sym == SDLK_PAGEUP)
+ closedAppleDown = false;
+
+// if (event.key.keysym.sym >= SDLK_a && event.key.keysym.sym <= SDLK_z)
+// keyDown = false;
+
break;
case SDL_QUIT:
running = false;
}
}
-#warning "!!! Taking MAJOR time hit with the video frame rendering !!!"
+//#warning "!!! Taking MAJOR time hit with the video frame rendering !!!"
RenderVideoFrame();
SetCallbackTime(FrameCallback, 16666.66666667);
counter++;
if (counter == 60)
{
- uint64 clock = GetCurrentV65C02Clock();
-//totalCPU += (uint32)(clock - lastClock);
+ uint64_t clock = GetCurrentV65C02Clock();
+//totalCPU += (uint32_t)(clock - lastClock);
- printf("Executed %u cycles...\n", (uint32)(clock - lastClock));
+ printf("Executed %u cycles...\n", (uint32_t)(clock - lastClock));
lastClock = clock;
// totalCPU = 0;
counter = 0;
//Actually, slows things down too much...
//SDL_Delay(10);
// while (SDL_GetTicks() - startTicks < 16); // Wait for next frame...
- while (SDL_GetTicks() - startTicks < 16)
+
+// This is the problem: If you set the interval to 16, it runs faster than
+// 1/60s per frame. If you set it to 17, it runs slower. What we need is to
+// have it do 16 for one frame, then 17 for two others. Then it should average
+// out to 1/60s per frame every 3 frames.
+ frameCount = (frameCount + 1) % 3;
+
+ uint32_t waitFrameTime = 17 - (frameCount == 0 ? 1 : 0);
+
+ while (SDL_GetTicks() - startTicks < waitFrameTime)
SDL_Delay(1); // Wait for next frame...
startTicks = SDL_GetTicks();
+#if 0
+ uint64_t cpuCycles = GetCurrentV65C02Clock();
+ uint32_t cyclesBurned = (uint32_t)(cpuCycles - lastCPUCycles);
+ WriteLog("FrameCallback: used %i cycles\n", cyclesBurned);
+ lastCPUCycles = cpuCycles;
+#endif
+
//let's wait, then signal...
//works longer, but then still falls behind...
#ifdef THREADED_65C02
- SDL_CondSignal(cpuCond);//OK, let the CPU go another frame...
+ if (!pauseMode)
+ SDL_CondSignal(cpuCond);//OK, let the CPU go another frame...
#endif
}
+
static void BlinkTimer(void)
{
flash = !flash;
SetCallbackTime(BlinkTimer, 250000); // Set up blinking at 1/4 sec intervals
}
+
/*
Next problem is this: How to have events occur and synchronize with the rest
of the threads?
time it overflows. Like so:
double overflow = 0;
-uint32 time = 20;
+uint32_t time = 20;
while (!done)
{
Execute6808(&soundCPU, time);
projects / apple2 / blobdiff