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diff --git a/docs/release/src/mame/includes/mhavoc.h b/docs/release/src/mame/includes/mhavoc.h
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+// license:BSD-3-Clause
+// copyright-holders:Mike Appolo
+/*************************************************************************
+
+ Atari Major Havoc hardware
+
+*************************************************************************/
+
+#include "machine/timer.h"
+#include "sound/pokey.h"
+#include "sound/tms5220.h"
+
+#define MHAVOC_CLOCK 10000000
+#define MHAVOC_CLOCK_5M (MHAVOC_CLOCK/2)
+#define MHAVOC_CLOCK_2_5M (MHAVOC_CLOCK/4)
+#define MHAVOC_CLOCK_1_25M (MHAVOC_CLOCK/8)
+#define MHAVOC_CLOCK_625K (MHAVOC_CLOCK/16)
+
+#define MHAVOC_CLOCK_156K (MHAVOC_CLOCK_625K/4)
+#define MHAVOC_CLOCK_5K (MHAVOC_CLOCK_625K/16/8)
+#define MHAVOC_CLOCK_2_4K (MHAVOC_CLOCK_625K/16/16)
+
+
+class mhavoc_state : public driver_device
+{
+public:
+ mhavoc_state(const machine_config &mconfig, device_type type, const char *tag) :
+ driver_device(mconfig, type, tag),
+ m_zram0(*this, "zram0"),
+ m_zram1(*this, "zram1"),
+ m_alpha(*this, "alpha"),
+ m_gamma(*this, "gamma"),
+ m_pokey(*this, "pokey%u", 1U),
+ m_tms(*this, "tms"),
+ m_lamps(*this, "lamp%u", 0U),
+ m_coin(*this, "COIN"),
+ m_service(*this, "SERVICE")
+ { }
+
+ void alphaone(machine_config &config);
+ void mhavoc(machine_config &config);
+ void mhavocrv(machine_config &config);
+
+ void init_mhavocrv();
+
+ DECLARE_CUSTOM_INPUT_MEMBER(coin_service_r);
+ DECLARE_READ_LINE_MEMBER(gamma_rcvd_r);
+ DECLARE_READ_LINE_MEMBER(gamma_xmtd_r);
+ DECLARE_READ_LINE_MEMBER(alpha_rcvd_r);
+ DECLARE_READ_LINE_MEMBER(alpha_xmtd_r);
+ DECLARE_READ_LINE_MEMBER(clock_r);
+
+private:
+ uint8_t dual_pokey_r(offs_t offset);
+ void dual_pokey_w(offs_t offset, uint8_t data);
+ void mhavoc_alpha_irq_ack_w(uint8_t data);
+ void mhavoc_gamma_irq_ack_w(uint8_t data);
+ void mhavoc_gamma_w(uint8_t data);
+ uint8_t mhavoc_alpha_r();
+ void mhavoc_alpha_w(uint8_t data);
+ uint8_t mhavoc_gamma_r();
+ void mhavoc_ram_banksel_w(uint8_t data);
+ void mhavoc_rom_banksel_w(uint8_t data);
+ void mhavoc_out_0_w(uint8_t data);
+ void alphaone_out_0_w(uint8_t data);
+ void mhavoc_out_1_w(uint8_t data);
+ void mhavocrv_speech_data_w(uint8_t data);
+ void mhavocrv_speech_strobe_w(uint8_t data);
+ uint8_t quad_pokeyn_r(offs_t offset);
+ void quad_pokeyn_w(offs_t offset, uint8_t data);
+
+ TIMER_CALLBACK_MEMBER(delayed_gamma_w);
+ TIMER_DEVICE_CALLBACK_MEMBER(mhavoc_cpu_irq_clock);
+ void alpha_map(address_map &map);
+ void alphaone_map(address_map &map);
+ void gamma_map(address_map &map);
+
+ virtual void machine_start() override;
+ virtual void machine_reset() override;
+
+ required_shared_ptr<uint8_t> m_zram0;
+ required_shared_ptr<uint8_t> m_zram1;
+ required_device<cpu_device> m_alpha;
+ optional_device<cpu_device> m_gamma;
+ optional_device_array<pokey_device, 4> m_pokey;
+ optional_device<tms5220_device> m_tms;
+ output_finder<2> m_lamps;
+ optional_ioport m_coin;
+ optional_ioport m_service;
+
+ uint8_t m_alpha_data = 0;
+ uint8_t m_alpha_rcvd = 0;
+ uint8_t m_alpha_xmtd = 0;
+ uint8_t m_gamma_data = 0;
+ uint8_t m_gamma_rcvd = 0;
+ uint8_t m_gamma_xmtd = 0;
+ uint8_t m_player_1 = 0;
+ uint8_t m_alpha_irq_clock = 0;
+ uint8_t m_alpha_irq_clock_enable = 0;
+ uint8_t m_gamma_irq_clock = 0;
+ uint8_t m_has_gamma_cpu = 0;
+ uint8_t m_speech_write_buffer = 0;
+};