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+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+/***************************************************************************
+
+ am2910.h
+ AMD Am2910 Microprogram Controller emulation
+
+***************************************************************************/
+
+#ifndef MAME_MACHINE_AM2910_AM2910_H
+#define MAME_MACHINE_AM2910_AM2910_H
+
+#pragma once
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> am2910_device
+
+class am2910_device : public device_t
+{
+public:
+ // construction/destruction
+ am2910_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ DECLARE_WRITE_LINE_MEMBER(cc_w); // !CC
+ DECLARE_WRITE_LINE_MEMBER(ccen_w); // !CCEN
+ DECLARE_WRITE_LINE_MEMBER(ci_w); // CI
+ DECLARE_WRITE_LINE_MEMBER(rld_w); // !RLD
+ DECLARE_WRITE_LINE_MEMBER(cp_w); // CP
+ void d_w(uint16_t data);
+ void i_w(uint8_t data);
+
+ auto y() { return m_y.bind(); }
+ auto pl() { return m_pl.bind(); }
+ auto full() { return m_full.bind(); }
+ auto map() { return m_map.bind(); }
+ auto vect() { return m_vect.bind(); }
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
+
+ static constexpr device_timer_id TIMER_CLOCK = 0;
+
+ emu_timer *m_execute_timer;
+
+ void execute();
+ bool test_pass();
+ void push(uint16_t value);
+ void pop();
+ void update_source();
+
+ // internal state
+ uint16_t m_pc;
+ uint16_t m_r;
+ uint8_t m_sp;
+ uint16_t m_stack[5];
+
+ // inputs
+ int m_cc;
+ int m_ccen;
+ int m_ci;
+ int m_rld;
+ int m_cp;
+ uint16_t m_d;
+ uint8_t m_i;
+
+ // outputs
+ devcb_write16 m_y;
+ devcb_write_line m_full;
+ devcb_write_line m_pl;
+ devcb_write_line m_map;
+ devcb_write_line m_vect;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(AM2910, am2910_device)
+
+#endif // MAME_MACHINE_AM2910_AM2910_H