/home/andref/projetos/epos--/include/utility/srec.h

// EPOS-- SREC Utility Declarations

// This work is licensed under the Creative Commons 
// Attribution-NonCommercial-NoDerivs License. To view a copy of this license, 
// visit http://creativecommons.org/licenses/by-nc-nd/2.0/ or send a letter to 
// Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.

#ifndef __srec_h
#define __srec_h 1

#include <system/config.h>

__BEGIN_SYS 

class SREC
{
public:
    SREC() {}    
    
    bool valid() { 
      return ((((char*)this)[0] == 'S') && 
              (((char*)this)[1] == '0')); 
    }

    void * entry(); 
    
    int segments() { 
      return (1); 
    }
    
    void * segment_address(int i) { 
      return ((void *) this->entry()); 
    }
    
    int segment_size(int i); 
    int load_segment(int i, void * addr = 0);

private:    

    static signed char ctab[];
    static int ltab[];
    
    typedef struct srec_t {
      unsigned char type;
      unsigned int  addr;
      unsigned char count;
      unsigned char data[256];
    };

    inline int C1(unsigned char* l, unsigned char p) {
      return(ctab[l[p]]);
    };    

    inline int C2(unsigned char* l, unsigned char p) {
      return( (C1(l,p)<<4) | (C1(l,p+1)) );
    };

    bool srec_decode(srec_t *srec, char *_line);
    
};

__END_SYS 
 
#endif

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