1.1 --- a/src/sh4/mmu.c	Tue Jan 15 20:50:23 2008 +0000
     1.2 +++ b/src/sh4/mmu.c	Tue Jan 22 10:06:41 2008 +0000
     1.3 @@ -849,6 +849,41 @@
     1.4      }
     1.5  }
     1.6  
     1.7 +/**
     1.8 + * Translate address for disassembly purposes (ie performs an instruction 
     1.9 + * lookup) - does not raise exceptions or modify any state, and ignores
    1.10 + * protection bits. Returns the translated address, or MMU_VMA_ERROR
    1.11 + * on translation failure. 
    1.12 + */
    1.13 +sh4addr_t mmu_vma_to_phys_disasm( sh4vma_t vma )
    1.14 +{
    1.15 +    if( vma & 0x80000000 ) {
    1.16 +	if( vma < 0xC0000000 ) {
    1.17 +	    /* P1, P2 and P4 regions are pass-through (no translation) */
    1.18 +	    return VMA_TO_EXT_ADDR(vma);
    1.19 +	} else if( vma >= 0xE0000000 && vma < 0xFFFFFF00 ) {
    1.20 +	    /* Not translatable */
    1.21 +	    return MMU_VMA_ERROR;
    1.22 +	}
    1.23 +    }
    1.24 +
    1.25 +    uint32_t mmucr = MMIO_READ(MMU,MMUCR);
    1.26 +    if( (mmucr & MMUCR_AT) == 0 ) {
    1.27 +	return VMA_TO_EXT_ADDR(vma);
    1.28 +    }
    1.29 +    
    1.30 +    int entryNo = mmu_itlb_lookup_vpn( vma );
    1.31 +    if( entryNo == -2 ) {
    1.32 +	entryNo = mmu_itlb_lookup_vpn_asid( vma );
    1.33 +    }
    1.34 +    if( entryNo < 0 ) {
    1.35 +	return MMU_VMA_ERROR;
    1.36 +    } else {
    1.37 +	return (mmu_itlb[entryNo].ppn & mmu_itlb[entryNo].mask) | 
    1.38 +	    (vma & (~mmu_itlb[entryNo].mask));	
    1.39 +    }
    1.40 +}
    1.41 +
    1.42  gboolean sh4_flush_store_queue( sh4addr_t addr )
    1.43  {
    1.44      uint32_t mmucr = MMIO_READ(MMU,MMUCR);