You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
155 lines
2.6 KiB
155 lines
2.6 KiB
|
|
#ifndef CPICOBLAZE
|
|
#define CPICOBLAZE
|
|
|
|
#include <iostream>
|
|
#include <list>
|
|
|
|
using namespace std ;
|
|
|
|
class CPicoBlaze ;
|
|
class CInstruction ;
|
|
|
|
#include "types.h"
|
|
#include "cinstruction.h"
|
|
#include "hexcodes.h"
|
|
|
|
#define MAX_ADDRESS 0x400
|
|
#define STACK_DEPTH 31
|
|
#define SCRATCHPAD_SIZE 64
|
|
|
|
#define PortReadable 1
|
|
#define PortWriteable 2
|
|
class CIOPort
|
|
{
|
|
public:
|
|
|
|
CIOPort( uint8_t id ) { m_id = id ; m_mode = 0 ; }
|
|
|
|
virtual void Out( uint8_t val ) = 0 ;
|
|
virtual uint8_t In() = 0 ;
|
|
|
|
uint8_t getID() { return m_id ; }
|
|
void setID( uint8_t id ) { m_id = id ; }
|
|
void setMode( int mode ) { m_mode = mode ; }
|
|
int getMode() { return m_mode ; }
|
|
bool isReadable() { return (m_mode & PortReadable) != 0 ; }
|
|
bool isWriteable() { return (m_mode & PortWriteable) != 0 ; }
|
|
|
|
private:
|
|
uint8_t m_id ;
|
|
int m_mode ;
|
|
} ;
|
|
|
|
class CProgramCounter {
|
|
public:
|
|
CProgramCounter() ;
|
|
~CProgramCounter() ;
|
|
|
|
void Next() ;
|
|
void Set( uint16_t address ) ;
|
|
uint16_t Get() ;
|
|
|
|
protected:
|
|
uint16_t pc ;
|
|
} ;
|
|
|
|
class CScratchPad {
|
|
public:
|
|
CScratchPad() ;
|
|
~CScratchPad() ;
|
|
|
|
uint8_t Get( uint8_t address ) ;
|
|
void Set( uint8_t address, uint8_t data ) ;
|
|
|
|
protected:
|
|
uint8_t ram[ SCRATCHPAD_SIZE ] ;
|
|
} ;
|
|
|
|
class CStack {
|
|
public:
|
|
CStack() ;
|
|
~CStack() ;
|
|
|
|
void Push( uint16_t value ) ;
|
|
uint16_t Pop() ;
|
|
void Reset() ;
|
|
|
|
protected:
|
|
uint16_t stack[ STACK_DEPTH ] ;
|
|
uint8_t ptr ;
|
|
} ;
|
|
|
|
class CPort {
|
|
public:
|
|
CPort() ;
|
|
~CPort() ;
|
|
|
|
void PortID( uint8_t id ) { portid = id ; } ;
|
|
uint8_t PortIn() ;
|
|
void PortOut( uint8_t data ) ;
|
|
|
|
void addPort( CIOPort * port ) ;
|
|
void deletePort( CIOPort * port ) ;
|
|
|
|
protected:
|
|
uint16_t portid ;
|
|
|
|
list<CIOPort*> portList ;
|
|
|
|
} ;
|
|
|
|
class CCode {
|
|
public:
|
|
CCode( CPicoBlaze *cpu ) ;
|
|
~CCode() ;
|
|
|
|
bool setInstruction( uint16_t address, uint32_t code, unsigned int sourceLine ) ;
|
|
CInstruction *getInstruction( uint16_t address ) ;
|
|
|
|
void ClearCode() ;
|
|
void Print() ;
|
|
|
|
CInstruction * Disassemble( uint32_t code ) ;
|
|
|
|
protected:
|
|
CPicoBlaze *m_cpu ;
|
|
|
|
CInstruction * CodeMap[ MAX_ADDRESS ] ;
|
|
} ;
|
|
|
|
class CPicoBlaze {
|
|
|
|
public:
|
|
CPicoBlaze() ;
|
|
~CPicoBlaze() ;
|
|
|
|
unsigned int GetNextSourceLine() ;
|
|
bool Next() ;
|
|
void Reset() ;
|
|
void Interrupt() ;
|
|
void Print() ;
|
|
|
|
void addPort( CIOPort * ioport ) ;
|
|
void deletePort( CIOPort * ioport ) ;
|
|
|
|
uint8_t s[ 16 ] ;
|
|
struct _flags {
|
|
bool zero ;
|
|
bool carry ;
|
|
bool interrupt_enable ;
|
|
|
|
bool preserved_zero ;
|
|
bool preserved_carry ;
|
|
} flags ;
|
|
|
|
CProgramCounter *pc ;
|
|
CScratchPad *scratch ;
|
|
CStack *stack ;
|
|
CPort *port ;
|
|
CCode *code ;
|
|
} ;
|
|
|
|
#endif
|
|
|