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Annotation of nono/vm/areaset.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: // エリアセット
                      9: //
                     10: 
1.1       root       11: #include "areaset.h"
1.1.1.3   root       12: #include "mpu.h"
1.1.1.9   root       13: #include "x68kio.h"
1.1       root       14: 
1.1.1.6   root       15: // コンストラクタ
1.1       root       16: AreaSetDevice::AreaSetDevice()
1.1.1.8   root       17:        : inherited(OBJ_AREASET)
1.1       root       18: {
                     19: }
                     20: 
1.1.1.6   root       21: // デストラクタ
1.1       root       22: AreaSetDevice::~AreaSetDevice()
                     23: {
                     24: }
                     25: 
1.1.1.9   root       26: // 初期化
                     27: bool
                     28: AreaSetDevice::Init()
                     29: {
                     30:        if (inherited::Init() == false) {
                     31:                return false;
                     32:        }
                     33: 
                     34:        x68kio = GetX68kIODevice();
                     35: 
                     36:        return true;
                     37: }
                     38: 
1.1.1.6   root       39: // リセット
1.1.1.3   root       40: void
1.1.1.6   root       41: AreaSetDevice::ResetHard(bool poweron)
1.1.1.3   root       42: {
1.1.1.9   root       43:        // リセットでどうなるかは分からないけど、
                     44:        // さすがに不定ではないだろう。
                     45:        x68kio->SetAreaset(0);
1.1.1.3   root       46: }
                     47: 
1.1.1.9   root       48: busdata
1.1.1.10! root       49: AreaSetDevice::ReadPort(uint32 offset)
1.1       root       50: {
1.1.1.10! root       51:        putlog(2, "Read $%06x (BusErr)", mpu->GetPaddr());
        !            52:        return BusData::BusErr;
1.1       root       53: }
                     54: 
                     55: 
1.1.1.9   root       56: busdata
1.1.1.10! root       57: AreaSetDevice::WritePort(uint32 offset, uint32 data)
1.1       root       58: {
1.1.1.10! root       59:        putlog(1, "Write $%06x <- $%02x", mpu->GetPaddr(), data);
        !            60:        x68kio->SetAreaset(data);
1.1.1.9   root       61: 
                     62:        const busdata wait = busdata::Wait(7 * 40_nsec);
1.1.1.10! root       63:        busdata r = wait;
        !            64:        r |= BusData::Size1;
1.1.1.9   root       65:        return r;
1.1       root       66: }
                     67: 
1.1.1.9   root       68: busdata
1.1.1.10! root       69: AreaSetDevice::PeekPort(uint32 offset)
1.1       root       70: {
1.1.1.10! root       71:        return BusData::BusErr;
1.1       root       72: }
                     73: 
1.1.1.10! root       74: bool
        !            75: AreaSetDevice::PokePort(uint32 offset, uint32 data)
1.1       root       76: {
1.1.1.10! root       77:        // とりあえず
        !            78:        return false;
1.1       root       79: }

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