49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
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#include "mmu.h"
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#include "hw/sh4/sh4_if.h"
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#include "hw/sh4/sh4_interrupts.h"
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#include "hw/sh4/sh4_core.h"
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#include "types.h"
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#include "hw/mem/_vmem.h"
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//SQ fast remap , mailny hackish , assumes 1 mb pages
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//max 64 mb can be remapped on SQ
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u32 sq_remap[64];
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TLB_Entry UTLB[64];
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TLB_Entry ITLB[4];
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//sync mem mapping to mmu , suspend compiled blocks if needed.entry is a UTLB entry # , -1 is for full sync
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void UTLB_Sync(u32 entry)
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{
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if ((UTLB[entry].Address.VPN & (0xFC000000>>10)) == (0xE0000000>>10))
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{
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u32 vpn_sq=((UTLB[entry].Address.VPN & 0x7FFFF)>>10) &0x3F;//upper bits are allways known [0xE0/E1/E2/E3]
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sq_remap[vpn_sq]=UTLB[entry].Data.PPN<<10;
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printf("SQ remap %d : 0x%X to 0x%X\n",entry,UTLB[entry].Address.VPN<<10,UTLB[entry].Data.PPN<<10);
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}
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else
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printf("MEM remap %d : 0x%X to 0x%X\n",entry,UTLB[entry].Address.VPN<<10,UTLB[entry].Data.PPN<<10);
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}
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//sync mem mapping to mmu , suspend compiled blocks if needed.entry is a ITLB entry # , -1 is for full sync
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void ITLB_Sync(u32 entry)
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{
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printf("ITLB MEM remap %d : 0x%X to 0x%X\n",entry,ITLB[entry].Address.VPN<<10,ITLB[entry].Data.PPN<<10);
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}
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void MMU_init()
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{
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}
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void MMU_reset()
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{
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memset(UTLB,0,sizeof(UTLB));
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memset(ITLB,0,sizeof(ITLB));
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}
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void MMU_term()
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{
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}
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