1.1 --- a/src/mem.c	Tue Jan 10 14:00:00 2006 +0000
     1.2 +++ b/src/mem.c	Wed May 24 11:50:19 2006 +0000
     1.3 @@ -1,5 +1,5 @@
     1.4  /**
     1.5 - * $Id: mem.c,v 1.11 2006-01-10 14:00:00 nkeynes Exp $
     1.6 + * $Id: mem.c,v 1.12 2006-05-20 02:38:58 nkeynes Exp $
     1.7   * mem.c is responsible for creating and maintaining the overall system memory
     1.8   * map, as visible from the SH4 processor. 
     1.9   *
    1.10 @@ -222,7 +222,8 @@
    1.11  }
    1.12  
    1.13  struct mem_region *mem_map_region( void *mem, uint32_t base, uint32_t size,
    1.14 -                                   char *name, int flags )
    1.15 +                                   char *name, int flags, uint32_t repeat_offset,
    1.16 +				   uint32_t repeat_until )
    1.17  {
    1.18      int i;
    1.19      mem_rgn[num_mem_rgns].base = base;
    1.20 @@ -232,14 +233,23 @@
    1.21      mem_rgn[num_mem_rgns].mem = mem;
    1.22      num_mem_rgns++;
    1.23  
    1.24 -    for( i=0; i<size>>PAGE_BITS; i++ )
    1.25 -        page_map[(base>>PAGE_BITS)+i] = mem + (i<<PAGE_BITS);
    1.26 +    do {
    1.27 +	for( i=0; i<size>>PAGE_BITS; i++ )
    1.28 +	    page_map[(base>>PAGE_BITS)+i] = mem + (i<<PAGE_BITS);
    1.29 +	base += repeat_offset;	
    1.30 +    } while( base <= repeat_until );
    1.31  
    1.32      return &mem_rgn[num_mem_rgns-1];
    1.33  }
    1.34  
    1.35  void *mem_create_ram_region( uint32_t base, uint32_t size, char *name )
    1.36  {
    1.37 +    return mem_create_repeating_ram_region( base, size, name, size, base );
    1.38 +}
    1.39 +
    1.40 +void *mem_create_repeating_ram_region( uint32_t base, uint32_t size, char *name,
    1.41 +				       uint32_t repeat_offset, uint32_t repeat_until )
    1.42 +{
    1.43      char *mem;
    1.44      
    1.45      assert( (base&0xFFFFF000) == base ); /* must be page aligned */
    1.46 @@ -249,7 +259,8 @@
    1.47  
    1.48      mem = mem_alloc_pages( size>>PAGE_BITS );
    1.49  
    1.50 -    mem_map_region( mem, base, size, name, MEM_FLAG_RAM );
    1.51 +    mem_map_region( mem, base, size, name, MEM_FLAG_RAM, repeat_offset, repeat_until );
    1.52 +    
    1.53      return mem;
    1.54  }
    1.55  
    1.56 @@ -270,7 +281,7 @@
    1.57          close(fd);
    1.58          return NULL;
    1.59      }
    1.60 -    mem_map_region( mem, base, size, file, MEM_FLAG_ROM );
    1.61 +    mem_map_region( mem, base, size, file, MEM_FLAG_ROM, size, base );
    1.62  
    1.63      /* CRC check */
    1.64      calc_crc = crc32(0L, mem, size);