示例#1
0
        public VIC1541Motherboard(Region initRegion, byte[] initRom)
        {
            cpu     = new MOS6502X();
            pla     = new VIC1541PLA();
            ram     = new byte[0x800];
            rom     = initRom;
            serPort = new SerialPort();
            via0    = new MOS6522();
            via1    = new MOS6522();

            cpu.DummyReadMemory = pla.Read;
            cpu.ReadMemory      = pla.Read;
            cpu.WriteMemory     = pla.Write;

            pla.PeekRam   = ((int addr) => { return(ram[addr & 0x07FF]); });
            pla.PeekRom   = ((int addr) => { return(rom[addr & 0x3FFF]); });
            pla.PeekVia0  = via0.Peek;
            pla.PeekVia1  = via1.Peek;
            pla.PokeRam   = ((int addr, byte val) => { ram[addr & 0x07FF] = val; });
            pla.PokeRom   = ((int addr, byte val) => { });
            pla.PokeVia0  = via0.Poke;
            pla.PokeVia1  = via1.Poke;
            pla.ReadRam   = ((ushort addr) => { return(ram[addr & 0x07FF]); });
            pla.ReadRom   = ((ushort addr) => { return(rom[addr & 0x3FFF]); });
            pla.ReadVia0  = via0.Read;
            pla.ReadVia1  = via1.Read;
            pla.WriteRam  = ((ushort addr, byte val) => { ram[addr & 0x07FF] = val; });
            pla.WriteRom  = ((ushort addr, byte val) => { });
            pla.WriteVia0 = via0.Write;
            pla.WriteVia1 = via1.Write;

            via0CA0   = false;
            via0CA1   = false;
            via0CB0   = false;
            via0CB1   = false;
            via0DirA  = 0x00;
            via0DirB  = 0x00;
            via0DataA = 0xFF;
            via0DataB = 0xFF;
            via1CA0   = false;
            via1CA1   = false;
            via1CB0   = false;
            via1CB1   = false;
            via1DirA  = 0x00;
            via1DirB  = 0x00;
            via1DataA = 0xFF;
            via1DataB = 0xFF;

            via0.ReadCA0    = (() => { return(via0CA0); });
            via0.ReadCA1    = (() => { return(via0CA1); });
            via0.ReadCB0    = (() => { return(via0CB0); });
            via0.ReadCB1    = (() => { return(via0CB1); });
            via0.ReadDirA   = (() => { return(via0DirA); });
            via0.ReadDirB   = (() => { return(via0DirB); });
            via0.ReadPortA  = (() => { return(via0DataA); });
            via0.ReadPortB  = (() => { return(via0DataB); });
            via0.WriteCA0   = ((bool val) => { via0CA0 = val; });
            via0.WriteCA1   = ((bool val) => { via0CA1 = val; });
            via0.WriteCB0   = ((bool val) => { via0CB0 = val; });
            via0.WriteCB1   = ((bool val) => { via0CB1 = val; });
            via0.WriteDirA  = ((byte val) => { via0DirA = val; });
            via0.WriteDirB  = ((byte val) => { via0DirB = val; });
            via0.WritePortA = ((byte val) => {
                via0DataA = Port.CPUWrite(via0DataA, val, via0DirA);
            });
            via0.WritePortB = ((byte val) => {
                via0DataB = Port.CPUWrite(via0DataB, val, via0DirB);
                serPort.DeviceWriteAtn((via0DataB & 0x80) != 0);
                serPort.DeviceWriteClock((via0DataB & 0x08) != 0);
                serPort.DeviceWriteData((via0DataB & 0x02) != 0);
            });

            via1.ReadCA0    = (() => { return(via1CA0); });
            via1.ReadCA1    = (() => { return(via1CA1); });
            via1.ReadCB0    = (() => { return(via1CB0); });
            via1.ReadCB1    = (() => { return(via1CB1); });
            via1.ReadDirA   = (() => { return(via1DirA); });
            via1.ReadDirB   = (() => { return(via1DirB); });
            via1.ReadPortA  = (() => { return(via1DataA); });
            via1.ReadPortB  = (() => { return(via1DataB); });
            via1.WriteCA0   = ((bool val) => { via1CA0 = val; });
            via1.WriteCA1   = ((bool val) => { via1CA1 = val; });
            via1.WriteCB0   = ((bool val) => { via1CB0 = val; });
            via1.WriteCB1   = ((bool val) => { via1CB1 = val; });
            via1.WriteDirA  = ((byte val) => { via1DirA = val; });
            via1.WriteDirB  = ((byte val) => { via1DirB = val; });
            via1.WritePortA = ((byte val) => {
                via1DataA = Port.CPUWrite(via1DataA, val, via1DirA);
            });
            via1.WritePortB = ((byte val) => {
                via1DataB = Port.CPUWrite(via1DataB, val, via1DirB);
            });
        }