| /* |
| YAPE - Yet Another Plus/4 Emulator |
| |
| The program emulates the Commodore 264 family of 8 bit microcomputers |
| |
| This program is free software, you are welcome to distribute it, |
| and/or modify it under certain conditions. For more information, |
| read 'Copying'. |
| |
| (c) 2000, 2001, 2004, 2007, 2015 Attila Grósz |
| */ |
| #ifndef _TEDMEM_H |
| #define _TEDMEM_H |
| |
| #include "types.h" |
| #include "mem.h" |
| #include "serial.h" |
| #include "sound.h" |
| #include "SaveState.h" |
| |
| #define RAMSIZE 65536 |
| #define ROMSIZE 16384 |
| #define SCR_HSIZE 456 |
| #define SCR_VSIZE 312 |
| #define TED_CLOCK (312*114*500) |
| #define TED_REAL_CLOCK_M10 17734475 |
| #define TED_SOUND_CLOCK (TED_CLOCK / 10 ) |
| #define TED_REAL_SOUND_CLOCK (TED_REAL_CLOCK_M10 / 10 / 8) |
| |
| #define TEXTMODE 0x00000000 |
| #define MULTICOLOR 0x00000010 |
| #define GRAPHMODE 0x00000020 |
| #define EXTCOLOR 0x00000040 |
| #define REVERSE 0x00000080 |
| #define ILLEGAL 0x0000000F |
| |
| #define DRAW_BORDER(OFFS,COL) { *((unsigned int *) (scrptr + OFFS)) = COL; }; |
| |
| class TED; |
| class CPU; |
| class KEYS; |
| class TAP; |
| class CTCBM; |
| class SIDsound; |
| struct Color; |
| |
| typedef void (TED::*delayedEventCallback)(); |
| |
| class TED : public CSerial , public MemoryHandler, public SoundSource, public SaveState { |
| public: |
| TED(); |
| virtual ~TED(); |
| TAP *tap; |
| virtual KEYS *getKeys() { return keys; } |
| virtual void UpdateSerialState(unsigned char portval); |
| virtual void Reset(bool clearmem); |
| virtual void Reset() { Reset(true); }; |
| void soundReset(); |
| // read memory through memory decoder |
| virtual unsigned char Read(unsigned int addr); |
| virtual void Write(unsigned int addr, unsigned char value); |
| // read memory directly |
| unsigned char readDMA(unsigned int addr) { return Ram[addr]; } |
| // same as above but with writing |
| void wrtDMA(unsigned int addr, unsigned char value) { Ram[addr]=value; } |
| void setRamMask(unsigned int value) { RAMMask=value;} |
| unsigned int getRamMask(void) { return RAMMask;} |
| // are the ROMs disabled? |
| bool RAMenable; |
| // indicates whether 256K RAM is on |
| bool bigram, bramsm; |
| // /ram/rom path/load variables |
| virtual void loadroms(void); |
| void loadloromfromfile(int nr, char fname[256]); |
| void loadhiromfromfile(int nr, char fname[256]); |
| char romlopath[4][256]; |
| char romhighpath[4][256]; |
| // this is for the FRE support |
| virtual void dumpState(); |
| virtual void readState(); |
| // screen rendering |
| // raster co-ordinates and boundaries |
| unsigned int beamx, beamy; |
| unsigned char screen[512*(SCR_VSIZE*2)]; |
| bool render_ok; |
| void texttoscreen(int x, int y, const char *scrtxt); |
| void chrtoscreen(int x, int y, char scrchr); |
| virtual void copyToKbBuffer(const char *text, unsigned int length = 0); |
| // cursor stuff |
| unsigned int crsrpos; |
| int crsrphase; |
| bool crsrblinkon; |
| // CPU class pointer |
| CPU *cpuptr; |
| // TED process (main loop of emulation) |
| virtual void ted_process(const unsigned int continuous); |
| |
| unsigned char Ram[RAMSIZE]; |
| unsigned char RomHi[4][ROMSIZE]; |
| void ChangeMemBankSetup(); |
| |
| // timer stuff |
| bool t1on, t2on, t3on; |
| unsigned int timer1, timer2, timer3, t1start; |
| |
| virtual void setCpuPtr(CPU *cpu) { cpuptr = cpu; }; |
| void HookTCBM(CTCBM *pTcbmbus) { tcbmbus = pTcbmbus; }; |
| ClockCycle GetClockCount(); |
| static TED *instance() { return instance_; }; |
| unsigned char *getScreenData() { return screen; }; |
| bool enableSidCard(bool enable, unsigned int disableMask); |
| SIDsound *getSidCard(); |
| static void writeSoundReg(ClockCycle cycle, unsigned int reg, unsigned char value); |
| static void tedSoundInit(unsigned int mixingFreq); |
| |
| // |
| void showled(int x, int y, unsigned char onoff); |
| virtual unsigned int getColorCount() { return 128; }; |
| virtual Color getColor(unsigned int ix); |
| virtual unsigned int getCyclesPerRow() const { return SCR_HSIZE; } |
| virtual unsigned char *getIrqReg() { return &irqFlag; } |
| virtual unsigned int getSoundClock() { return TED_SOUND_CLOCK; } |
| virtual unsigned int getEmulationLevel() { return 0; } |
| virtual unsigned int getAutostartDelay() { return 70; } |
| virtual unsigned short getEndLoadAddressPtr() { return 0x9D; }; |
| virtual void calcSamples(short *buffer, unsigned int nrsamples); |
| virtual void setFrequency(unsigned int sid_frequency); |
| virtual void setSampleRate(unsigned int sampleRate_); |
| |
| private: |
| KEYS *keys; |
| |
| protected: |
| static TED *instance_; |
| CTCBM *tcbmbus; |
| unsigned int loop_continuous; |
| // memory variables |
| unsigned char RomLo[4][ROMSIZE]; |
| unsigned char *actromlo, *actromhi; |
| unsigned char *mem_8000_bfff, *mem_c000_ffff, *mem_fc00_fcff; |
| unsigned int RAMMask; |
| unsigned char RamExt[4][RAMSIZE]; // Ram slots for 256 K RAM |
| unsigned char *actram; |
| unsigned char prp, prddr; |
| unsigned char pio1; |
| // indicates if screen blank is off |
| bool scrblank; |
| // for vertical/horizontal smooth scroll |
| unsigned int hshift, vshift; |
| unsigned int nrwscr, fltscr; |
| // char/color buffers |
| unsigned char DMAbuf[64*3]; |
| unsigned char *chrbuf, *clrbuf, *tmpClrbuf; |
| int cposy; |
| // rendering functions |
| void (TED::*scrmode)(); |
| inline void hi_text(); |
| void mc_text(); |
| void mc_text_rvs(); |
| void ec_text(); |
| void mcec(); |
| void rv_text(); |
| void hi_bitmap(); |
| void mc_bitmap(); |
| void illegalbank(); |
| void render(); |
| bool charrom; |
| int rvsmode, grmode, ecmode; |
| int scrattr, charbank; |
| void changeCharsetBank(); |
| |
| // border color |
| unsigned int framecol; |
| // various memory pointers |
| unsigned char *charrombank, *charrambank; |
| unsigned char *grbank; |
| unsigned char *scrptr, *endptr, *ramptr; |
| const char *DMAptr; |
| unsigned int fastmode, irqline; |
| unsigned char hcol[2], mcol[4], ecol[4], bmmcol[4], *cset; |
| // |
| static unsigned int vertSubCount; |
| static int x; |
| static unsigned char *VideoBase; |
| |
| static ClockCycle CycleCounter; |
| static bool ScreenOn, attribFetch; |
| static bool SideBorderFlipFlop, CharacterWindow; |
| static unsigned int BadLine; |
| static unsigned int clockingState; |
| static unsigned int CharacterCount; |
| static bool VertSubActive; |
| static unsigned int CharacterPosition; |
| static unsigned int CharacterPositionReload; |
| //static unsigned int CharacterPositionCount; |
| static unsigned int TVScanLineCounter; |
| static bool HBlanking; |
| static bool VBlanking; |
| static bool aligned_write; |
| static unsigned char *aw_addr_ptr; |
| static unsigned char aw_value; |
| static unsigned int ff1d_latch; |
| static bool charPosLatchFlag; |
| static bool endOfScreen; |
| static bool delayedDMA; |
| // |
| void doDMA( unsigned char *Buf, unsigned int Offset ); |
| SIDsound *sidCard; |
| // |
| void doHRetrace(); |
| void doVRetrace(); |
| void newLine(); |
| // |
| void updateSerialDevices(unsigned char newAtn); |
| // |
| static const int hue(unsigned int i) |
| { |
| const int HUE[16] = { -2, -1, |
| /*RED*/ 103, /*CYAN */ 283, |
| /*MAGENTA*/ 53,/*GREEN*/ 241, /*BLUE*/347, |
| /*YELLOW*/ 167,/*ORANGE*/123, /*BROWN*/ 148, |
| /*YLLW-GRN*/ 195, /*PINK*/ 83, /*BLU-GRN*/ 265, |
| /*LT-BLU*/ 323, /*DK-BLU*/ /*23 original, but wrong...*/ 355, /*LT-GRN */ 213}; |
| return HUE[i]; |
| } |
| static const double luma(unsigned int i) |
| { |
| /* |
| Luminance Voltages |
| */ |
| const double luma[9] = { 2.00, 2.4, 2.55, 2.7, 2.9, 3.3, 3.6, 4.1, 4.8 }; |
| return luma[i + 1]; |
| } |
| }; |
| |
| class TEDFAST : public TED { |
| public: |
| TEDFAST(); |
| virtual ~TEDFAST() {}; |
| virtual void ted_process(const unsigned int continuous); |
| virtual void process_debug(unsigned int continuous); |
| virtual unsigned int getEmulationLevel() { return 1; } |
| protected: |
| virtual unsigned char getHorizontalCount(); |
| private: |
| bool endOfDMA; |
| inline void countTimers(unsigned int clocks); |
| inline void dmaLineBased(); |
| inline void renderLine(); |
| }; |
| |
| #define theTed TED::instance() |
| |
| #endif //_TEDMEM_H |