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-rw-r--r--src/devices/cpu/z80/nsc800.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/devices/cpu/z80/nsc800.h b/src/devices/cpu/z80/nsc800.h
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+++ b/src/devices/cpu/z80/nsc800.h
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+// license:BSD-3-Clause
+// copyright-holders:Juergen Buchmueller
+#ifndef MAME_CPU_Z80_NSC800_H
+#define MAME_CPU_Z80_NSC800_H
+
+#pragma once
+
+#include "z80.h"
+
+enum
+{
+ NSC800_RSTA = Z80_INPUT_LINE_MAX,
+ NSC800_RSTB,
+ NSC800_RSTC
+};
+
+
+class nsc800_device : public z80_device
+{
+public:
+ nsc800_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+ // device_t implementation
+ virtual void device_start() override ATTR_COLD;
+ virtual void device_reset() override ATTR_COLD;
+
+ // device_execute_interface implementation
+ virtual void execute_run() override;
+ virtual void execute_set_input(int inputnum, int state) override;
+
+ u8 m_nsc800_irq_state[3]; // state of NSC800 restart interrupts A, B, C
+};
+
+DECLARE_DEVICE_TYPE(NSC800, nsc800_device)
+
+
+#endif // MAME_CPU_Z80_NSC800_H