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Annotation of nono/vm/areaset.cpp, revision 1.1

1.1     ! root        1: //
        !             2: // nono
        !             3: // Copyright (C) 2017 [email protected]
        !             4: //
        !             5: 
        !             6: #include "areaset.h"
        !             7: 
        !             8: AreaSetDevice::AreaSetDevice()
        !             9: {
        !            10:        logname = "area";
        !            11:        devname = "AreaSet";
        !            12:        devaddr = baseaddr;
        !            13:        devlen  = 0x2000;
        !            14: }
        !            15: 
        !            16: AreaSetDevice::~AreaSetDevice()
        !            17: {
        !            18: }
        !            19: 
        !            20: uint64
        !            21: AreaSetDevice::Read8(uint32 addr)
        !            22: {
        !            23:        switch (addr) {
        !            24:         case 0xe86001:
        !            25:                return limit;
        !            26:        }
        !            27:        return (uint64)-1;
        !            28: }
        !            29: 
        !            30: uint64
        !            31: AreaSetDevice::Read16(uint32 addr)
        !            32: {
        !            33:        return 0xff00 | Read8(addr + 1);
        !            34: }
        !            35: 
        !            36: uint64
        !            37: AreaSetDevice::Write8(uint32 addr, uint32 data)
        !            38: {
        !            39:        switch (addr) {
        !            40:         case 0xe86001:
        !            41:                putlog(0, "未実装エリアセット書き込み $%02x", data);
        !            42:                limit = data;
        !            43:                return 0;
        !            44:         default:
        !            45:                break;
        !            46:        }
        !            47:        return (uint64)-1;
        !            48: }
        !            49: 
        !            50: uint64
        !            51: AreaSetDevice::Write16(uint32 addr, uint32 data)
        !            52: {
        !            53:        return Write8(addr + 1, data);
        !            54: }
        !            55: 
        !            56: uint64
        !            57: AreaSetDevice::Peek8(uint32 addr)
        !            58: {
        !            59:        switch (addr) {
        !            60:         case 0xe86001:
        !            61:                return limit;
        !            62:         default:
        !            63:                return 0xff;
        !            64:        }
        !            65: }

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