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-rw-r--r--src/devices/machine/scoop.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/src/devices/machine/scoop.h b/src/devices/machine/scoop.h
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+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+/***************************************************************************
+
+ Sharp Scoop peripheral chip emulation skeleton
+
+***************************************************************************/
+
+#ifndef MAME_MACHINE_SCOOP
+#define MAME_MACHINE_SCOOP
+
+#pragma once
+
+class scoop_device : public device_t
+{
+public:
+ scoop_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
+
+ template <unsigned Line> auto gpio_out() { return m_gpio_out[Line].bind(); }
+ template <unsigned Line> void gpio_in(int state) { gpio_in((uint16_t)Line, state); }
+
+ uint32_t read(offs_t offset);
+ void write(offs_t offset, uint32_t data);
+
+protected:
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ void gpio_in(const uint16_t line, const int state);
+ void update_gpio_direction(const uint16_t old_dir);
+ void update_gpio_outputs(const uint16_t old_latch, const uint16_t changed);
+
+ uint16_t m_gpwr;
+ uint16_t m_gpio_in_latch;
+ uint16_t m_gpcr;
+
+ devcb_write_line::array<13> m_gpio_out;
+};
+
+DECLARE_DEVICE_TYPE(SCOOP, scoop_device)
+
+#endif // MAME_MACHINE_SCOOP