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Diffstat (limited to 'src/devices/machine/latch.h')
-rw-r--r--src/devices/machine/latch.h59
1 files changed, 21 insertions, 38 deletions
diff --git a/src/devices/machine/latch.h b/src/devices/machine/latch.h
index d4e49ed838b..8c93a40f8b0 100644
--- a/src/devices/machine/latch.h
+++ b/src/devices/machine/latch.h
@@ -1,45 +1,42 @@
// license:BSD-3-Clause
// copyright-holders:smf
-#ifndef __LATCH_H__
-#define __LATCH_H__
+#ifndef MAME_MACHINE_LATCH_H
+#define MAME_MACHINE_LATCH_H
+
+#pragma once
+
#define MCFG_OUTPUT_LATCH_BIT0_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit0_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<0>(*device, DEVCB_##_devcb);
#define MCFG_OUTPUT_LATCH_BIT1_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit1_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<1>(*device, DEVCB_##_devcb);
#define MCFG_OUTPUT_LATCH_BIT2_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit2_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<2>(*device, DEVCB_##_devcb);
#define MCFG_OUTPUT_LATCH_BIT3_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit3_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<3>(*device, DEVCB_##_devcb);
#define MCFG_OUTPUT_LATCH_BIT4_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit4_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<4>(*device, DEVCB_##_devcb);
#define MCFG_OUTPUT_LATCH_BIT5_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit5_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<5>(*device, DEVCB_##_devcb);
#define MCFG_OUTPUT_LATCH_BIT6_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit6_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<6>(*device, DEVCB_##_devcb);
#define MCFG_OUTPUT_LATCH_BIT7_HANDLER(_devcb) \
- devcb = &output_latch_device::set_bit7_handler(*device, DEVCB_##_devcb);
+ devcb = &output_latch_device::set_bit_handler<7>(*device, DEVCB_##_devcb);
class output_latch_device : public device_t
{
public:
output_latch_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
- template<class _Object> static devcb_base &set_bit0_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit0_handler.set_callback(object); }
- template<class _Object> static devcb_base &set_bit1_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit1_handler.set_callback(object); }
- template<class _Object> static devcb_base &set_bit2_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit2_handler.set_callback(object); }
- template<class _Object> static devcb_base &set_bit3_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit3_handler.set_callback(object); }
- template<class _Object> static devcb_base &set_bit4_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit4_handler.set_callback(object); }
- template<class _Object> static devcb_base &set_bit5_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit5_handler.set_callback(object); }
- template<class _Object> static devcb_base &set_bit6_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit6_handler.set_callback(object); }
- template<class _Object> static devcb_base &set_bit7_handler(device_t &device, _Object object) { return downcast<output_latch_device &>(device).m_bit7_handler.set_callback(object); }
+ template <unsigned Bit, class Object> static devcb_base &set_bit_handler(device_t &device, Object &&cb)
+ { return downcast<output_latch_device &>(device).m_bit_handlers[Bit].set_callback(std::forward<Object>(cb)); }
void write(uint8_t data);
DECLARE_WRITE8_MEMBER(write) { write(data); }
@@ -48,27 +45,13 @@ protected:
virtual void device_start() override;
private:
- bool m_resolved;
+ devcb_write_line m_bit_handlers[8];
- int m_bit0;
- int m_bit1;
- int m_bit2;
- int m_bit3;
- int m_bit4;
- int m_bit5;
- int m_bit6;
- int m_bit7;
-
- devcb_write_line m_bit0_handler;
- devcb_write_line m_bit1_handler;
- devcb_write_line m_bit2_handler;
- devcb_write_line m_bit3_handler;
- devcb_write_line m_bit4_handler;
- devcb_write_line m_bit5_handler;
- devcb_write_line m_bit6_handler;
- devcb_write_line m_bit7_handler;
+ int m_bits[8];
+
+ bool m_resolved;
};
-extern const device_type OUTPUT_LATCH;
+DECLARE_DEVICE_TYPE(OUTPUT_LATCH, output_latch_device)
-#endif
+#endif // MAME_MACHINE_LATCH_H