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https://github.com/holub/mame
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7fa10acca6
(wip) netlist as well, but still have to implement three more devices until work can really start. [Couriersud]
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
// license:GPL-2.0+
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// copyright-holders:Couriersud
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/*
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* nld_74193.h
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*
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* DM74193: Synchronous 4-Bit Binary Counter with Dual Clock
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*
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* +--------------+
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* B |1 ++ 16| VCC
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* QB |2 15| A
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* QA |3 14| CLEAR
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* CD |4 74193 13| BORROWQ
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* CU |5 12| CARRYQ
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* QC |6 11| LOADQ
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* QD |7 10| C
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* GND |8 9| D
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* +--------------+
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*
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* CD: Count up
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* CU: Count down
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*
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* Naming conventions follow National Semiconductor datasheet
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*
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*/
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#ifndef NLD_74193_H_
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#define NLD_74193_H_
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#include "../nl_base.h"
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#define TTL_74193(_name) \
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NET_REGISTER_DEV(74193, _name)
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#define TTL_74193_DIP(_name) \
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NET_REGISTER_DEV(74193_dip, _name)
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NETLIB_DEVICE(74193,
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ATTR_HOT void update_outputs();
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netlist_ttl_input_t m_A;
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netlist_ttl_input_t m_B;
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netlist_ttl_input_t m_C;
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netlist_ttl_input_t m_D;
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netlist_ttl_input_t m_CLEAR;
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netlist_ttl_input_t m_LOADQ;
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netlist_ttl_input_t m_CU;
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netlist_ttl_input_t m_CD;
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netlist_state_t<INT8> m_cnt;
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netlist_state_t<UINT8> m_last_CU;
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netlist_state_t<UINT8> m_last_CD;
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netlist_ttl_output_t m_Q[4];
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netlist_ttl_output_t m_BORROWQ;
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netlist_ttl_output_t m_CARRYQ;
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);
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NETLIB_DEVICE_DERIVED(74193_dip, 74193,
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);
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#endif /* NLD_74193_H_ */
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