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

1.1     ! root        1: //
        !             2: // nono
        !             3: // Copyright (C) 2017 [email protected]
        !             4: //
        !             5: 
        !             6: #include "printer.h"
        !             7: 
        !             8: PrinterDevice::PrinterDevice()
        !             9: {
        !            10:        logname = "printer";
        !            11:        devname = "Printer";
        !            12:        devaddr = baseaddr;
        !            13:        devlen  = 0x2000;
        !            14: }
        !            15: 
        !            16: PrinterDevice::~PrinterDevice()
        !            17: {
        !            18: }
        !            19: 
        !            20: uint64
        !            21: PrinterDevice::Read8(uint32 addr)
        !            22: {
        !            23:        // 書き込み専用
        !            24:        return (uint64)-1;
        !            25: }
        !            26: 
        !            27: uint64
        !            28: PrinterDevice::Read16(uint32 addr)
        !            29: {
        !            30:        // 書き込み専用
        !            31:        return (uint64)-1;
        !            32: }
        !            33: 
        !            34: uint64
        !            35: PrinterDevice::Write8(uint32 addr, uint32 data)
        !            36: {
        !            37:        uint32 offset = addr - baseaddr;
        !            38:        switch (offset) {
        !            39:         case 0:
        !            40:                putlog(0, "未実装データ書き込み");
        !            41:                break;
        !            42:         case 3:
        !            43:                putlog(0, "未実装ストローブ書き込み");
        !            44:                return 0;
        !            45:         default:
        !            46:                break;
        !            47:        }
        !            48:        return (uint64)-1;
        !            49: }
        !            50: 
        !            51: uint64
        !            52: PrinterDevice::Write16(uint32 addr, uint32 data)
        !            53: {
        !            54:        return Write8(addr + 1, data);
        !            55: }
        !            56: 
        !            57: uint64
        !            58: PrinterDevice::Peek8(uint32 addr)
        !            59: {
        !            60:        // XXX
        !            61:        return 0xff;
        !            62: }

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