1.1 --- a/src/sh4/sh4mmio.c	Sat Jan 27 12:04:22 2007 +0000
     1.2 +++ b/src/sh4/sh4mmio.c	Tue Oct 02 08:48:27 2007 +0000
     1.3 @@ -1,5 +1,5 @@
     1.4  /**
     1.5 - * $Id: sh4mmio.c,v 1.12 2007-01-27 12:04:22 nkeynes Exp $
     1.6 + * $Id: sh4mmio.c,v 1.13 2007-10-02 08:48:27 nkeynes Exp $
     1.7   * 
     1.8   * Miscellaneous and not-really-implemented SH4 peripheral modules. Also
     1.9   * responsible for including the IMPL side of the SH4 MMIO pages.
    1.10 @@ -39,11 +39,17 @@
    1.11  void mmio_region_MMU_write( uint32_t reg, uint32_t val )
    1.12  {
    1.13      switch(reg) {
    1.14 -        case CCR:
    1.15 -            mmu_set_cache_mode( val & (CCR_OIX|CCR_ORA) );
    1.16 -            break;
    1.17 -        default:
    1.18 -            break;
    1.19 +    case MMUCR:
    1.20 +	if( val & MMUCR_AT ) {
    1.21 +	    ERROR( "MMU Address translation not implemented!" );
    1.22 +	    dreamcast_stop();
    1.23 +	}
    1.24 +	break;
    1.25 +    case CCR:
    1.26 +	mmu_set_cache_mode( val & (CCR_OIX|CCR_ORA) );
    1.27 +	break;
    1.28 +    default:
    1.29 +	break;
    1.30      }
    1.31      MMIO_WRITE( MMU, reg, val );
    1.32  }