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Annotation of nono/vm/printer.cpp, revision 1.1.1.10

1.1       root        1: //
                      2: // nono
1.1.1.2   root        3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
1.1       root        5: //
                      6: 
1.1.1.6   root        7: //
                      8: // プリンタポート
                      9: //
                     10: 
1.1       root       11: #include "printer.h"
1.1.1.10! root       12: #include "event.h"
1.1       root       13: 
1.1.1.9   root       14: // InsideOut p.135
                     15: static const busdata wait = busdata::Wait(7 * 40_nsec);
                     16: 
1.1.1.6   root       17: // コンストラクタ
1.1       root       18: PrinterDevice::PrinterDevice()
1.1.1.8   root       19:        : inherited(OBJ_PRINTER)
1.1       root       20: {
                     21: }
                     22: 
1.1.1.6   root       23: // デストラクタ
1.1       root       24: PrinterDevice::~PrinterDevice()
                     25: {
                     26: }
                     27: 
1.1.1.9   root       28: busdata
1.1.1.10! root       29: PrinterDevice::ReadPort(uint32 offset)
1.1       root       30: {
                     31:        // 書き込み専用
1.1.1.10! root       32:        busdata data = BusData::BusErr;
1.1.1.9   root       33:        data |= wait;
                     34:        return data;
1.1       root       35: }
                     36: 
1.1.1.9   root       37: busdata
1.1.1.10! root       38: PrinterDevice::WritePort(uint32 offset, uint32 data)
1.1       root       39: {
1.1.1.9   root       40:        busdata r;
                     41: 
1.1       root       42:        switch (offset) {
                     43:         case 0:
1.1.1.7   root       44:                // データ書き込み
                     45:                putlog(0, "Write Data (NOT IMPLEMENTED)");
1.1.1.9   root       46:                r.SetBusErr();
1.1       root       47:                break;
1.1.1.10! root       48:         case 1:
1.1.1.7   root       49:                // ストローブ書き込み
                     50:                putlog(0, "Write Strobe (NOT IMPLEMENTED)");
1.1.1.9   root       51:                r = 0;
                     52:                break;
1.1       root       53:         default:
                     54:                break;
                     55:        }
1.1.1.9   root       56: 
                     57:        r |= wait;
1.1.1.10! root       58:        r |= BusData::Size1;
1.1.1.9   root       59:        return r;
1.1       root       60: }
                     61: 
1.1.1.9   root       62: busdata
1.1.1.10! root       63: PrinterDevice::PeekPort(uint32 offset)
1.1       root       64: {
1.1.1.10! root       65:        // XXX
        !            66:        return 0xff;
1.1       root       67: }
                     68: 
1.1.1.10! root       69: bool
        !            70: PrinterDevice::PokePort(uint32 offset, uint32 data)
1.1       root       71: {
1.1.1.10! root       72:        return false;
1.1       root       73: }

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