compbyte.c

详细介绍了一篇关于pci开发的接口芯片

/* compbyte.c

   bcompare -> addr1 & addr2 increment
   bcompare_1 -> addr1 stays same, addr2

   All have same...

   Entry:
   Exit: <> if OK.

*/

#include <stdtypes.h>
#include <clib1.h>
#include <string.h>
#include <stdio.h>

int bcompare(LONG length, VOID *addr1, VOID *addr2, \
    CHAR *err_string, WORD max_err_length)

/* Byte compare both addresses increment.
*/
{
   register VBYTE *sptr = addr1, *dptr = addr2;
   register LONG counter = length;
   register UINT8 sbdata, wsdata;
   CHAR local_str[80];

   while( counter )
   {
      sbdata = *sptr++;
      wsdata = *dptr++;
      if ( sbdata != wsdata )
      {
         sprintf( local_str, "BYTE miscompare offset $%8.8lx bytes.\n", length - counter );
         strmcat( err_string, max_err_length,local_str );
         sprintf( local_str, "SB: $%2.2x, WS: $%2.2x.\n", sbdata,wsdata );
         strmcat( err_string, max_err_length, local_str );
         return(0);
      }

      counter--;
   }

   return(1);
}


int bcompare_1( LONG length, VOID *addr1, VOID *addr2, \
    CHAR *err_string, WORD max_err_length)

/* Byte compare, addr1 does not increment.
*/
{
   register VBYTE *sptr = addr1, *dptr = addr2;
   register LONG counter = length;
   register UINT8 sbdata, wsdata;
   CHAR local_str[80];

   while( counter )
   {
      sbdata = *sptr;
      wsdata = *dptr++;
      if ( sbdata != wsdata )
      {
         sprintf( local_str, "BYTE miscompare offset $%8.8lx bytes.\n", length - counter );
         strmcat( err_string, max_err_length,local_str );
         sprintf( local_str, "SB: $%2.2x, WS: $%2.2x.\n", sbdata, wsdata );
         strmcat( err_string, max_err_length,local_str );
         return(0);
      }

      counter--;
   }

   return(1);
}



int physical_bcompare(LONG length, UINT32 addr1, UINT32 addr2, \
    CHAR *err_string, WORD max_err_length)
/* Byte compare both addresses increment.
*/
{
   register UINT32 counter = length;
   register UINT8 sbdata, wsdata;
	
   CHAR local_str[80];

   while( counter )
   {
		sbdata = xpeek8(addr1++);
		wsdata = xpeek8(addr2++);

      if ( sbdata != wsdata )
      {
         sprintf( local_str, "BYTE miscompare offset $%8.8lx bytes.\n", length - counter );
         strmcat( err_string, max_err_length,local_str );
         sprintf( local_str, "SB: $%2.2x, WS: $%2.2x.\n", sbdata, wsdata );
         strmcat( err_string, max_err_length, local_str );
         return(0);
      }

      counter--;
   }

   return(1);
}


int physical_bcompare_1( LONG length, UINT32 addr1, UINT32 addr2, \
    CHAR *err_string, WORD max_err_length)

/* Byte compare, addr1 does not increment.
*/
{
   register UINT32 counter = length;
   register UINT8 sbdata, wsdata;
   CHAR local_str[80];

   while( counter )
   {
		sbdata = xpeek8(addr1);
		wsdata = xpeek8(addr2++);
      if ( sbdata != wsdata )
      {
         sprintf( local_str, "BYTE miscompare offset $%8.8lx bytes.\n", length - counter );
         strmcat( err_string, max_err_length,local_str );
         sprintf( local_str, "SB: $%2.2x, WS: $%2.2x.\n", sbdata, wsdata );
         strmcat( err_string, max_err_length,local_str );
         return(0);
      }

      counter--;
   }

   return(1);
}