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diff --git a/src/mame/includes/ac1.h b/src/mame/includes/ac1.h
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+// license:BSD-3-Clause
+// copyright-holders:Miodrag Milanovic
+/*****************************************************************************
+ *
+ * includes/ac1.h
+ *
+ ****************************************************************************/
+
+#ifndef AC1_H_
+#define AC1_H_
+
+#include "machine/z80pio.h"
+#include "imagedev/cassette.h"
+
+class ac1_state : public driver_device
+{
+public:
+ ac1_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_cassette(*this, "cassette"),
+ m_maincpu(*this, "maincpu"),
+ m_gfxdecode(*this, "gfxdecode"),
+ m_palette(*this, "palette"),
+ m_io_line(*this, "LINE")
+ { }
+
+ DECLARE_DRIVER_INIT(ac1);
+ virtual void machine_reset();
+ virtual void video_start();
+ UINT32 screen_update_ac1(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ UINT32 screen_update_ac1_32(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ DECLARE_READ8_MEMBER(ac1_port_b_r);
+ DECLARE_READ8_MEMBER(ac1_port_a_r);
+ DECLARE_WRITE8_MEMBER(ac1_port_a_w);
+ DECLARE_WRITE8_MEMBER(ac1_port_b_w);
+
+private:
+ required_device<cassette_image_device> m_cassette;
+ required_device<cpu_device> m_maincpu;
+ required_device<gfxdecode_device> m_gfxdecode;
+ required_device<palette_device> m_palette;
+ required_ioport_array<7> m_io_line;
+};
+
+/*----------- defined in video/ac1.c -----------*/
+extern const gfx_layout ac1_charlayout;
+
+#endif /* AC1_h_ */