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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 8327 | maxcodehac | 1 | #include "mem.h" |
| 2 | #include "RAM.h" |
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| 3 | |||
| 4 | |||
| 5 | |||
| 6 | static Boolean ramAccessF(void* userData, UInt32 pa, UInt8 size, Boolean write, void* bufP){ |
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| 7 | |||
| 8 | ArmRam* ram = userData; |
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| 9 | UInt8* addr = (UInt8*)ram->buf; |
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| 10 | |||
| 11 | pa -= ram->adr; |
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| 12 | if(pa >= ram->sz) return false; |
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| 13 | |||
| 14 | addr += pa; |
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| 15 | |||
| 16 | if(write){ |
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| 17 | |||
| 18 | switch(size){ |
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| 19 | |||
| 20 | case 1: |
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| 21 | |||
| 22 | *((UInt8*)addr) = *(UInt8*)bufP; //our memory system is little-endian |
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| 23 | break; |
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| 24 | |||
| 25 | case 2: |
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| 26 | |||
| 27 | *((UInt16*)addr) = *(UInt16*)bufP; //our memory system is little-endian |
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| 28 | break; |
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| 29 | |||
| 30 | case 4: |
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| 31 | |||
| 32 | *((UInt32*)addr) = *(UInt32*)bufP; |
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| 33 | break; |
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| 34 | |||
| 35 | case 8: |
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| 36 | |||
| 37 | *((UInt32*)(addr + 0)) = ((UInt32*)bufP)[0]; |
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| 38 | *((UInt32*)(addr + 4)) = ((UInt32*)bufP)[1]; |
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| 39 | break; |
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| 40 | |||
| 41 | default: |
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| 42 | |||
| 43 | return false; |
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| 44 | } |
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| 45 | } |
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| 46 | else{ |
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| 47 | |||
| 48 | switch(size){ |
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| 49 | |||
| 50 | case 1: |
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| 51 | |||
| 52 | *(UInt8*)bufP = *((UInt8*)addr); |
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| 53 | break; |
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| 54 | |||
| 55 | case 2: |
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| 56 | |||
| 57 | *(UInt16*)bufP = *((UInt16*)addr); |
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| 58 | break; |
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| 59 | |||
| 60 | case 4: |
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| 61 | |||
| 62 | *(UInt32*)bufP = *((UInt32*)addr); |
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| 63 | break; |
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| 64 | |||
| 65 | case 64: |
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| 66 | ((UInt32*)bufP)[ 8] = *((UInt32*)(addr + 32)); |
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| 67 | ((UInt32*)bufP)[ 9] = *((UInt32*)(addr + 36)); |
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| 68 | ((UInt32*)bufP)[10] = *((UInt32*)(addr + 40)); |
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| 69 | ((UInt32*)bufP)[11] = *((UInt32*)(addr + 44)); |
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| 70 | ((UInt32*)bufP)[12] = *((UInt32*)(addr + 48)); |
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| 71 | ((UInt32*)bufP)[13] = *((UInt32*)(addr + 52)); |
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| 72 | ((UInt32*)bufP)[14] = *((UInt32*)(addr + 56)); |
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| 73 | ((UInt32*)bufP)[15] = *((UInt32*)(addr + 60)); |
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| 74 | //fallthrough |
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| 75 | case 32: |
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| 76 | |||
| 77 | ((UInt32*)bufP)[4] = *((UInt32*)(addr + 16)); |
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| 78 | ((UInt32*)bufP)[5] = *((UInt32*)(addr + 20)); |
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| 79 | ((UInt32*)bufP)[6] = *((UInt32*)(addr + 24)); |
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| 80 | ((UInt32*)bufP)[7] = *((UInt32*)(addr + 28)); |
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| 81 | //fallthrough |
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| 82 | case 16: |
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| 83 | |||
| 84 | ((UInt32*)bufP)[2] = *((UInt32*)(addr + 8)); |
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| 85 | ((UInt32*)bufP)[3] = *((UInt32*)(addr + 12)); |
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| 86 | //fallthrough |
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| 87 | case 8: |
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| 88 | ((UInt32*)bufP)[0] = *((UInt32*)(addr + 0)); |
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| 89 | ((UInt32*)bufP)[1] = *((UInt32*)(addr + 4)); |
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| 90 | break; |
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| 91 | |||
| 92 | default: |
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| 93 | |||
| 94 | return false; |
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| 95 | } |
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| 96 | } |
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| 97 | |||
| 98 | return true; |
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| 99 | } |
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| 100 | |||
| 101 | Boolean ramInit(ArmRam* ram, ArmMem* mem, UInt32 adr, UInt32 sz, UInt32* buf){ |
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| 102 | |||
| 103 | ram->adr = adr; |
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| 104 | ram->sz = sz; |
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| 105 | ram->buf = buf; |
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| 106 | |||
| 107 | return memRegionAdd(mem, adr, sz, &ramAccessF, ram); |
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| 108 | } |
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| 109 | |||
| 110 | Boolean ramDeinit(ArmRam* ram, ArmMem* mem){ |
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| 111 | |||
| 112 | return memRegionDel(mem, ram->adr, ram->sz); |
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| 113 | } |