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-rw-r--r--src/devices/bus/bbc/internal/integrab.h67
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diff --git a/src/devices/bus/bbc/internal/integrab.h b/src/devices/bus/bbc/internal/integrab.h
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+++ b/src/devices/bus/bbc/internal/integrab.h
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+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/**********************************************************************
+
+ Computech Integra-B expansion board
+
+**********************************************************************/
+
+
+#ifndef MAME_BUS_BBC_INTERNAL_INTEGRAB_H
+#define MAME_BUS_BBC_INTERNAL_INTEGRAB_H
+
+#include "internal.h"
+#include "machine/mc146818.h"
+#include "machine/nvram.h"
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class bbc_integrab_device :
+ public device_t,
+ public device_bbc_internal_interface
+{
+public:
+ // construction/destruction
+ bbc_integrab_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ // optional information overrides
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+ virtual ioport_constructor device_input_ports() const override;
+
+ virtual bool overrides_rom() override { return true; }
+ virtual bool overrides_ram() override { return true; }
+ virtual uint8_t ram_r(offs_t offset) override;
+ virtual void ram_w(offs_t offset, uint8_t data) override;
+ virtual uint8_t romsel_r(offs_t offset) override;
+ virtual void romsel_w(offs_t offset, uint8_t data) override;
+ virtual uint8_t paged_r(offs_t offset) override;
+ virtual void paged_w(offs_t offset, uint8_t data) override;
+
+private:
+ required_memory_region m_ibos;
+ optional_device_array<bbc_romslot_device, 16> m_rom;
+ required_device<nvram_device> m_nvram;
+ required_device<mc146818_device> m_rtc;
+ required_ioport m_wp;
+
+ std::unique_ptr<uint8_t[]> m_ram;
+ bool m_shadow;
+ uint8_t m_romsel;
+ uint8_t m_ramsel;
+};
+
+
+// device type definition
+DECLARE_DEVICE_TYPE(BBC_INTEGRAB, bbc_integrab_device)
+
+
+#endif // MAME_BUS_BBC_INTERNAL_INTEGRAB_H