charlie allom  (charlie@pobox.com) wrote:

>At 6:13 PM -0500 15/10/99, Bob Nestor wrote:
>>If anyone wants the source code of this I'd be happy to accomidate them.
>>The program could use some work though since I stopped working on it when
>>I was able to give Allen enough info to get my card up and running.
>
>i wouldn't mind seeing if i could use it on my system bob, seeing as 
>getting a MacOS partition near this mac will take me a while....

Like I said, it's not much but here it is:

#include <stdio.h>

#define BLOCK_SIZE 0x8000L
#define SLOT_SIZE  0x400000L

void main(void)
{
   volatile long int *addr, *probe_addr;
   long int i, j, k, value, test_value, new_value, mem_type;
   FILE *dump;
   int blocks[SLOT_SIZE/BLOCK_SIZE], num_blocks = SLOT_SIZE/BLOCK_SIZE;
   long int dead_blocks[] = {0x400000};
   struct {
       long int start;
       long int size;
   } known[] = {{0x0, 0x100}, {0x40000, 0x20}, {0x80000, 0x140}};
   char match, *types[] = {"16-bit ROM", "32-bit ROM", "16-bit Registers",
       "32-bit Registers", "16-bit RAM", "32-bit RAM"};
   
   addr = (long int *)0xfe000000;
   for (i=0;i<num_blocks;i++)
       blocks[i] = -1;

   if ((dump = fopen("slot-diff", "w+")) == NULL) {
      printf("Can't open output file\n");
      return;
   }
   /*
    * Dump the know areas first
    */
   for (i=0; i<sizeof(known)/sizeof(known[0]);i++) {
       printf ("Dump of block 0x%08lx", (long int)addr+known[i].start);
       for (j=0;j<known[i].size;j+=4) {
           probe_addr = addr+(j+known[i].start)/4;
           if (((j/4) % 4) == 0)
              printf ("\n0x%08lx:  ", (long int)probe_addr);
           printf ("0x%08lx ", *probe_addr);
       }
       printf("\n");
   }
   printf ("Probing for Registers and RAM\n");
   for (i=0;i<SLOT_SIZE;i+=4) {
       value = (long int)*(addr+i);
       *(addr+j) = 0xffffffff;
       new_value = (long int)*(addr+i);
       if (value != new_value) {
           if (value == 0xffffffff)
              printf (" Location 0x%08lx appears to be RAM\n", (long 
int)addr+j);
           else
              printf (" Location 0x%08lx appears to be Registers\n", 
(long int)addr+i);
       }
   }
   fclose(dump);
   printf("Done.\n");
 }