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            }
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            }
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        }
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        }
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    }
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    }
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    public class Led {
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    public class Led {
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        protected mcp23017 dev;
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        private int bank { get; set; }
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        public int bank { get; set; }
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        private int pin { get; set; }
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        public int pin { get; set; }
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        private UInt16 address { get; set; }
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        public UInt16 address { get; set; }
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        private UInt16 mask { get; set; }
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        public UInt16 mask { get; set; }
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        private int shift { get; set; }
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        public int shift { get; set; }
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        public uint value { get; set; }
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        public uint value { get; set; }
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        public Led(mcp23017 dev, int bank, int pin, UInt16 address, UInt16 mask, int shift) {
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        public Led(int bank, int pin, UInt16 address, UInt16 mask, int shift) {
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            this.dev = dev;
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            this.pin = pin;
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            this.pin = pin;
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            this.address = address;
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            this.address = address;
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            this.mask = mask;
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            this.mask = mask;
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            this.shift = shift;
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            this.shift = shift;
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            this.value = 0;
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            this.value = 0;
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            UInt16 data;
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            if (!Globals.BiosOutput.TryGetValue(this.address, out data)) {
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            Globals.outputs.Add(this.address, this);
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                Globals.BiosOutput.Add(this.address, 0x0000);
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            }
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        }
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        }
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        public bool Tick(uint data) {
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        public bool Tick(ref byte shadow) {
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            UInt16 data;
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            byte tmpshadow = shadow;
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            if (Globals.BiosOutput.TryGetValue(this.address, out data)) {
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            uint newval = (data & mask) >> shift;
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                this.value = (UInt16)((data & mask) >> shift);
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                if (this.value == 1)
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                    Globals.setBit(shadow, this.pin);
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                else
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                    Globals.clearBit(shadow, this.pin);
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            if (newval != this.value) {
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                byte curr = 0;
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                dev.GetBank(this.bank, (byte)this.bank, out curr);
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                Globals.setBit(curr, pin);
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                dev.SetBank(this.bank, curr);
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            }
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            }
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            if (tmpshadow == shadow)
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                return false;
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            return true;
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            return true;
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        }
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        }
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    }
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    }