/*
	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 Attila Grósz
*/
#ifndef _TEDMEM_H
#define _TEDMEM_H

#define RAMSIZE 65536
#define ROMSIZE 16384
#define SCR_HSIZE 456
#define SCR_VSIZE 312

#define CYCSTEP 8
#define RASTEROFFSET 52


class CPU;
class KEYS;
class TAP;

class MEM {
  public:
  	MEM();
  	~MEM();
	KEYS *keys;
	TAP	*tap;
	// read memory through memory decoder
  	unsigned char read(unsigned int addr);
	// read memory directly
	unsigned char readDMA(unsigned int addr) { return Ram[addr]; }
	// same as above but with writing
  	void wrt(unsigned int addr, unsigned char value);
	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
	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
  	void dump(void *img);
	void memin(void *img);
	// screen rendering
	// raster co-ordinates and boundaries
	unsigned int beamx, beamy, scrleft, scrright, scrtop, scrbottom;
	unsigned int rcolconv[458];
	unsigned char screen[(SCR_HSIZE+4)*(SCR_VSIZE+4)];
	bool render_ok;
	void texttoscreen(int x,int y, char *scrtxt);
	void chrtoscreen(int x,int y, char scrchr);
	// cursor stuff
	unsigned int crsrpos;
	int crsrphase;
	bool crsrblinkon;
	// is joy emulated?
	bool joyemu;
	// CPU class pointer
	CPU	*cpuptr;
	// TED process (main loop of emulation)
	void ted_process();
	// tape stuff
	bool tapeload;
	bool tapesave;
	// TED sound frequencies
	unsigned int TEDfreq1, TEDfreq2, TEDVolume;
	unsigned int TEDChannel1, TEDChannel2, TEDDA, TEDNoise;
	void setDS( void *ds);

	bool soundon;
 	unsigned char Ram[RAMSIZE];
  	unsigned char RomHi[4][ROMSIZE];

	// timer stuff
	bool t1on, t2on, t3on;
	unsigned int timer1, timer2, timer3, t1start;



  private:
	// memory variables

  	unsigned char RomLo[4][ROMSIZE];
	unsigned char *actromlo, *actromhi;
  	unsigned int RAMMask;
	unsigned char RamExt[4][RAMSIZE];	// Ram slots for 256 K RAM
	unsigned char *actram;

	// 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 chrbuf[41], clrbuf[41];
	int cposy;
	// rendering functions
	void	(MEM::*scrmode)();
	inline void	hi_text();
	void	mc_text();
	void	ec_text();
	void	mcec();
	void	rv_text();
	void	hi_bitmap();
	void	mc_bitmap();
	void	illegalbank();
	bool	charrom;
	int		rvsmode, grmode, ecmode;
	int		scrattr, charbank;

	// border color
	unsigned int framecol;
	// various memory pointers
	unsigned char *colorbank;
	unsigned char *grbank, *charrambank, *charrombank;
	unsigned char *scrptr, *endptr, *ramptr; // ez nem itt volt
	const char *DMAptr;
	unsigned int fastmode, irqline;
	unsigned char hcol[2], mcol[4], ecol[4], bmmcol[4], *cset;


	// supplementary
	unsigned int htab312[SCR_VSIZE+4];
	unsigned int vtab320[321];
	unsigned int htab40[256];
	unsigned char hccmask[SCR_HSIZE+4];
	unsigned char mccmask[SCR_HSIZE+4];
	unsigned char mccmask2[SCR_HSIZE+4];

	int xcol[460], crclrx[1025], crclry[1025];
	unsigned int xbeam[458];

};

const short HUE[16] = { 0, 0,
/*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 };

const unsigned char p4col_digi[768] = { // 2*128*3 color RGB components twice
	0x03, 0x03, 0x03, 0x2f, 0x2f, 0x2f, 0x68, 0x10, 0x10, 0x00, 0x42, 0x42,
	0x58, 0x00, 0x6d, 0x00, 0x4e, 0x00, 0x19, 0x1c, 0x94, 0x38, 0x38, 0x00,
	0x56, 0x20, 0x00, 0x4b, 0x28, 0x00, 0x16, 0x48, 0x00, 0x69, 0x07, 0x2f,
	0x00, 0x46, 0x26, 0x06, 0x2a, 0x80, 0x2a, 0x14, 0x9b, 0x0b, 0x49, 0x00,

	0x03, 0x03, 0x03, 0x3d, 0x3d, 0x3d, 0x75, 0x1e, 0x20, 0x00, 0x50, 0x4f,
	0x6a, 0x10, 0x78, 0x04, 0x5c, 0x00, 0x2a, 0x2a, 0xa3, 0x4c, 0x47, 0x00,
	0x69, 0x2f, 0x00, 0x59, 0x38, 0x00, 0x26, 0x56, 0x00, 0x75, 0x15, 0x41,
	0x00, 0x58, 0x3d, 0x15, 0x3d, 0x8f, 0x39, 0x22, 0xae, 0x19, 0x59, 0x00,

	0x03, 0x03, 0x03, 0x42, 0x42, 0x42, 0x7b, 0x28, 0x20, 0x02, 0x56, 0x59,
	0x6f, 0x1a, 0x82, 0x0a, 0x65, 0x09, 0x30, 0x34, 0xa7, 0x50, 0x51, 0x00,
	0x6e, 0x36, 0x00, 0x65, 0x40, 0x00, 0x2c, 0x5c, 0x00, 0x7d, 0x1e, 0x45,
	0x01, 0x61, 0x45, 0x1c, 0x45, 0x99, 0x42, 0x2d, 0xad, 0x1d, 0x62, 0x00,

	0x03, 0x03, 0x03, 0x56, 0x55, 0x5a, 0x90, 0x3c, 0x3b, 0x17, 0x6d, 0x72,
	0x87, 0x2d, 0x99, 0x1f, 0x7b, 0x15, 0x46, 0x49, 0xc1, 0x66, 0x63, 0x00,
	0x84, 0x4c, 0x0d, 0x73, 0x55, 0x00, 0x40, 0x72, 0x00, 0x91, 0x33, 0x5e,
	0x19, 0x74, 0x5c, 0x32, 0x59, 0xae, 0x59, 0x3f, 0xc3, 0x32, 0x76, 0x00,

	0x03, 0x03, 0x03, 0x84, 0x7e, 0x85, 0xbb, 0x67, 0x68, 0x45, 0x96, 0x96,
	0xaf, 0x58, 0xc3, 0x4a, 0xa7, 0x3e, 0x73, 0x73, 0xec, 0x92, 0x8d, 0x11,
	0xaf, 0x78, 0x32, 0xa1, 0x80, 0x20, 0x6c, 0x9e, 0x12, 0xba, 0x5f, 0x89,
	0x46, 0x9f, 0x83, 0x61, 0x85, 0xdd, 0x84, 0x6c, 0xef, 0x5d, 0xa3, 0x29,

	0x03, 0x03, 0x03, 0xb2, 0xac, 0xb3, 0xe9, 0x92, 0x92, 0x6c, 0xc3, 0xc1,
	0xd9, 0x86, 0xf0, 0x79, 0xd1, 0x76, 0x9d, 0xa1, 0xff, 0xbd, 0xbe, 0x40,
	0xdc, 0xa2, 0x61, 0xd1, 0xa9, 0x4c, 0x93, 0xc8, 0x3d, 0xe9, 0x8a, 0xb1,
	0x6f, 0xcd, 0xab, 0x8a, 0xb4, 0xff, 0xb2, 0x9a, 0xff, 0x88, 0xcb, 0x59,

	0x03, 0x03, 0x03, 0xca, 0xca, 0xca, 0xff, 0xac, 0xac, 0x85, 0xd8, 0xe0,
	0xf3, 0x9c, 0xff, 0x92, 0xea, 0x8a, 0xb7, 0xba, 0xff, 0xd6, 0xd3, 0x5b,
	0xf3, 0xbe, 0x79, 0xe6, 0xc5, 0x65, 0xb0, 0xe0, 0x57, 0xff, 0xa4, 0xcf,
	0x89, 0xe5, 0xc8, 0xa4, 0xca, 0xff, 0xc8, 0xb8, 0xff, 0xa2, 0xe5, 0x7a,

	0x03, 0x03, 0x03, 0xff, 0xff, 0xff, 0xff, 0xf6, 0xf2, 0xd1, 0xff, 0xff,
	0xff, 0xe9, 0xff, 0xdb, 0xff, 0xd3, 0xe8, 0xe8, 0xff, 0xff, 0xff, 0xa3,
	0xff, 0xff, 0xc1, 0xff, 0xff, 0xb2, 0xfc, 0xff, 0xa2, 0xff, 0xee, 0xff,
	0xd1, 0xff, 0xff, 0xeb, 0xff, 0xff, 0xff, 0xf0, 0xff, 0xed, 0xff, 0xbc,


	0x03, 0x03, 0x03, 0x2f, 0x2f, 0x2f, 0x68, 0x10, 0x10, 0x00, 0x42, 0x42,
	0x58, 0x00, 0x6d, 0x00, 0x4e, 0x00, 0x19, 0x1c, 0x94, 0x38, 0x38, 0x00,
	0x56, 0x20, 0x00, 0x4b, 0x28, 0x00, 0x16, 0x48, 0x00, 0x69, 0x07, 0x2f,
	0x00, 0x46, 0x26, 0x06, 0x2a, 0x80, 0x2a, 0x14, 0x9b, 0x0b, 0x49, 0x00,

	0x03, 0x03, 0x03, 0x3d, 0x3d, 0x3d, 0x75, 0x1e, 0x20, 0x00, 0x50, 0x4f,
	0x6a, 0x10, 0x78, 0x04, 0x5c, 0x00, 0x2a, 0x2a, 0xa3, 0x4c, 0x47, 0x00,
	0x69, 0x2f, 0x00, 0x59, 0x38, 0x00, 0x26, 0x56, 0x00, 0x75, 0x15, 0x41,
	0x00, 0x58, 0x3d, 0x15, 0x3d, 0x8f, 0x39, 0x22, 0xae, 0x19, 0x59, 0x00,

	0x03, 0x03, 0x03, 0x42, 0x42, 0x42, 0x7b, 0x28, 0x20, 0x02, 0x56, 0x59,
	0x6f, 0x1a, 0x82, 0x0a, 0x65, 0x09, 0x30, 0x34, 0xa7, 0x50, 0x51, 0x00,
	0x6e, 0x36, 0x00, 0x65, 0x40, 0x00, 0x2c, 0x5c, 0x00, 0x7d, 0x1e, 0x45,
	0x01, 0x61, 0x45, 0x1c, 0x45, 0x99, 0x42, 0x2d, 0xad, 0x1d, 0x62, 0x00,

	0x03, 0x03, 0x03, 0x56, 0x55, 0x5a, 0x90, 0x3c, 0x3b, 0x17, 0x6d, 0x72,
	0x87, 0x2d, 0x99, 0x1f, 0x7b, 0x15, 0x46, 0x49, 0xc1, 0x66, 0x63, 0x00,
	0x84, 0x4c, 0x0d, 0x73, 0x55, 0x00, 0x40, 0x72, 0x00, 0x91, 0x33, 0x5e,
	0x19, 0x74, 0x5c, 0x32, 0x59, 0xae, 0x59, 0x3f, 0xc3, 0x32, 0x76, 0x00,

	0x03, 0x03, 0x03, 0x84, 0x7e, 0x85, 0xbb, 0x67, 0x68, 0x45, 0x96, 0x96,
	0xaf, 0x58, 0xc3, 0x4a, 0xa7, 0x3e, 0x73, 0x73, 0xec, 0x92, 0x8d, 0x11,
	0xaf, 0x78, 0x32, 0xa1, 0x80, 0x20, 0x6c, 0x9e, 0x12, 0xba, 0x5f, 0x89,
	0x46, 0x9f, 0x83, 0x61, 0x85, 0xdd, 0x84, 0x6c, 0xef, 0x5d, 0xa3, 0x29,

	0x03, 0x03, 0x03, 0xb2, 0xac, 0xb3, 0xe9, 0x92, 0x92, 0x6c, 0xc3, 0xc1,
	0xd9, 0x86, 0xf0, 0x79, 0xd1, 0x76, 0x9d, 0xa1, 0xff, 0xbd, 0xbe, 0x40,
	0xdc, 0xa2, 0x61, 0xd1, 0xa9, 0x4c, 0x93, 0xc8, 0x3d, 0xe9, 0x8a, 0xb1,
	0x6f, 0xcd, 0xab, 0x8a, 0xb4, 0xff, 0xb2, 0x9a, 0xff, 0x88, 0xcb, 0x59,

	0x03, 0x03, 0x03, 0xca, 0xca, 0xca, 0xff, 0xac, 0xac, 0x85, 0xd8, 0xe0,
	0xf3, 0x9c, 0xff, 0x92, 0xea, 0x8a, 0xb7, 0xba, 0xff, 0xd6, 0xd3, 0x5b,
	0xf3, 0xbe, 0x79, 0xe6, 0xc5, 0x65, 0xb0, 0xe0, 0x57, 0xff, 0xa4, 0xcf,
	0x89, 0xe5, 0xc8, 0xa4, 0xca, 0xff, 0xc8, 0xb8, 0xff, 0xa2, 0xe5, 0x7a,

	0x03, 0x03, 0x03, 0xff, 0xff, 0xff, 0xff, 0xf6, 0xf2, 0xd1, 0xff, 0xff,
	0xff, 0xe9, 0xff, 0xdb, 0xff, 0xd3, 0xe8, 0xe8, 0xff, 0xff, 0xff, 0xa3,
	0xff, 0xff, 0xc1, 0xff, 0xff, 0xb2, 0xfc, 0xff, 0xa2, 0xff, 0xee, 0xff,
	0xd1, 0xff, 0xff, 0xeb, 0xff, 0xff, 0xff, 0xf0, 0xff, 0xed, 0xff, 0xbc,

	};

const double luma[9] = {
/*
	Luminancia Voltages
*/
	2.00, 2.4, 2.55, 2.7, 2.9, 3.3, 3.6, 4.1, 4.8 };

const double sat[9] = {
	//60.0, 72.0, 74.0, 68.0, 63.0, 51.0, 42.0, 27.0, 6.0
	17.0, 23.0, 30.0, 38.0, 55.0, 60.0, 38.0, 8.59
};

#endif //_TEDMEM_H

/*

int brightness =  ...;	//* 0..255
int contrast = ...;	//* 0..255

for (i=0; i < 128; i++) {
	int k = (brightness-128) + (contrast*i)/128;
	if (k < 0)
		k=0;
	else if (k > 255)
		k = 255;
	table[i] = k;
}
*/