/*
	lu3.h
	Definitions for LU3 datapath control program 
*/
#ifndef	LU3_INCLUDED
#define	LU3_INCLUDED

#define	MAJOR_VERSION	0
#define MINOR_VERSION	99

#define	BANNER_ID		"LU3-DV Control"

/* Bit defenitions for switch array */
#define	IRQ0_DATA_HIGH_INCREMENT		2
#define	IRQ1_DATA_HIGH_DECREMENT		1
#define	IRQ2_DATA_LOW_INCREMENT			8
#define	IRQ3_DATA_LOW_DECREMENT			4
#define	IRQ4_ADDRESS_HIGH_INCREMENT		0x20
#define	IRQ5_ADDRESS_HIGH_DECREMENT		0x10
#define	IRQ6_ADDRESS_LOW_INCREMENT		0x80
#define	IRQ7_ADDRESS_LOW_DECREMENT		0x40
#define	IRQ8_DATA_SET					0x100
#define	IRQ9_FLISP_RESET				0x200
#define	IRQ10_FLISP_CLK					0x400
#define	IRQ11_FLISP_NF					0x800
#define	ADDRESS_SET_MODE				0x1000
#define	DATA_SET_MODE					0x2000





#define	FLISP_RESET	1
#define	FLISP_NF	2
#define	FLISP_CLK	3

#define	MEM_DATA_SET	4
#define	MEM_DATA_H_INC	5
#define	MEM_DATA_H_DEC	6
#define	MEM_DATA_L_INC	7
#define	MEM_DATA_L_DEC	8

#define	MEM_ADDR_H_INC	9
#define	MEM_ADDR_H_DEC	10
#define	MEM_ADDR_L_INC	11
#define	MEM_ADDR_L_DEC	12


#define	MEMORY_WRITE	13
#define	MEMORY_READ		14

#define	REGISTER_WRITE	15
#define	REGISTER_READ	16
#define	GET_VERSION		17
#define	QUIET_MODE		18
#define	INTERACTIVE_MODE		19


typedef struct cmd {
	unsigned char 	message;
	unsigned char	p1;
	unsigned char	p2;
} CMD, *PCMD;

#define MAX_CMD_BUF	32


typedef struct regtype{
	unsigned char	cval;
	unsigned char	ldenab;
	unsigned char	oeenab;
	unsigned char	incenab;
	unsigned char	decenab;
	unsigned char	clrenab;
}REGTYPE;


typedef struct aluhandle{
	unsigned char	Dval;
	unsigned char	Eval;
	unsigned char	Uval;
	unsigned char	func;
	unsigned char	f3;
	unsigned char	f2;
	unsigned char	f1;
	unsigned char	f0;
	unsigned char	flags;
	unsigned char	cin;
}ALUHANDLE;

typedef struct muxhandle{
	unsigned char	g14;
	unsigned char	g13;
	unsigned char	g12;
	unsigned char	g11;
	unsigned char	g10;
	unsigned char	g9;
	unsigned char	g8;
	unsigned char	g7;
	unsigned char	g6;
	unsigned char	g5;
	unsigned char	g4;
	unsigned char	g3;
	unsigned char	g2;
	unsigned char	g1;
	unsigned char	g0;
}MUXHANDLE;

typedef struct memhandle{
	unsigned char	mw;
	unsigned char	mr;
}MEMHANDLE;

typedef struct datapath{
	unsigned char	busval;
	unsigned char	memadd;
	unsigned char	nf;
	unsigned char	irq;
	REGTYPE	regA;
	REGTYPE	regB;
	REGTYPE	regT;
	REGTYPE	regR;
	REGTYPE	regCC;
	REGTYPE	regI;
	REGTYPE	regX;
	REGTYPE	regY;
	REGTYPE	regSP;
	REGTYPE	regPC;
	REGTYPE	regTA;
	ALUHANDLE	alu;
	MUXHANDLE	mux;
	MEMHANDLE	mainmem;
}DATAPATH;

int	isExternalOpcode( void );
void	doExternalOpcode( void );

unsigned char	readIn( unsigned char );
void	outbusHigh( unsigned char );
void	outbusLow( unsigned char );
void	selectOut( unsigned char );

void	updateRegisters( void );
void	updateAll(void);

void	setMemory(unsigned char add, unsigned char data);
unsigned char	getMemory(unsigned char add );
void	setAutoAddress(unsigned char add);

void	consoleInit( void );
void 	consoleOut(unsigned char ch);

void	sendEOT( void );
void	sendAsAscii( unsigned char );


void	initCmd(void);
void	putCmd( PCMD p );

void	setFlispRegisterValue(unsigned char r, unsigned char);
unsigned char	getFlispRegisterValue(unsigned char);
unsigned char	translateFlispRegister(unsigned char );

PCMD 	getCmd( void );
void	doFlispReset(void );
void	doFlispNF(void);
void	doFlispClk(void);

extern	unsigned char	interactive_mode;


#endif	/* LU3_INCLUDED */