mirror of
https://github.com/holub/mame
synced 2025-06-04 03:46:29 +03:00
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:hap
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/*
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TMS1000 family - TMS0270
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*/
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#ifndef _TMS0270_H_
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#define _TMS0270_H_
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#include "tms0980.h"
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// TMS0270 was designed to interface with TMS5100, set it up at driver level
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#define MCFG_TMS0270_READ_CTL_CB(_devcb) \
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devcb = &tms0270_cpu_device::set_read_ctl_callback(*device, DEVCB_##_devcb);
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#define MCFG_TMS0270_WRITE_CTL_CB(_devcb) \
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devcb = &tms0270_cpu_device::set_write_ctl_callback(*device, DEVCB_##_devcb);
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#define MCFG_TMS0270_WRITE_PDC_CB(_devcb) \
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devcb = &tms0270_cpu_device::set_write_pdc_callback(*device, DEVCB_##_devcb);
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class tms0270_cpu_device : public tms0980_cpu_device
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{
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public:
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tms0270_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
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// static configuration helpers
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template<class _Object> static devcb_base &set_read_ctl_callback(device_t &device, _Object object) { return downcast<tms0270_cpu_device &>(device).m_read_ctl.set_callback(object); }
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template<class _Object> static devcb_base &set_write_ctl_callback(device_t &device, _Object object) { return downcast<tms0270_cpu_device &>(device).m_write_ctl.set_callback(object); }
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template<class _Object> static devcb_base &set_write_pdc_callback(device_t &device, _Object object) { return downcast<tms0270_cpu_device &>(device).m_write_pdc.set_callback(object); }
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protected:
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// overrides
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virtual void device_start() override;
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virtual void device_reset() override;
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virtual machine_config_constructor device_mconfig_additions() const override;
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virtual void write_o_output(u8 index) override { tms1k_base_device::write_o_output(index); }
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virtual u8 read_k_input() override;
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virtual void dynamic_output() override;
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virtual void op_setr() override;
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virtual void op_rstr() override;
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virtual void op_tdo() override;
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private:
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// state specific to interface with TMS5100
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u16 m_r_prev;
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u8 m_chipsel;
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u8 m_ctl_out;
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u8 m_ctl_dir;
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int m_pdc;
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u8 m_o_latch_low;
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u8 m_o_latch;
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u8 m_o_latch_prev;
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devcb_read8 m_read_ctl;
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devcb_write8 m_write_ctl;
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devcb_write_line m_write_pdc;
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};
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extern const device_type TMS0270;
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#endif /* _TMS0270_H_ */
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