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-rw-r--r--scripts/src/machine.lua12
-rw-r--r--src/devices/machine/7400.cpp92
-rw-r--r--src/devices/machine/7400.h85
3 files changed, 0 insertions, 189 deletions
diff --git a/scripts/src/machine.lua b/scripts/src/machine.lua
index 339957e31ee..1b74ef6dea6 100644
--- a/scripts/src/machine.lua
+++ b/scripts/src/machine.lua
@@ -437,18 +437,6 @@ end
---------------------------------------------------
--
---@src/devices/machine/7400.h,MACHINES["TTL7400"] = true
----------------------------------------------------
-
-if (MACHINES["TTL7400"]~=null) then
- files {
- MAME_DIR .. "src/devices/machine/7400.cpp",
- MAME_DIR .. "src/devices/machine/7400.h",
- }
-end
-
----------------------------------------------------
---
--@src/devices/machine/7404.h,MACHINES["TTL7404"] = true
---------------------------------------------------
diff --git a/src/devices/machine/7400.cpp b/src/devices/machine/7400.cpp
deleted file mode 100644
index 74631c81007..00000000000
--- a/src/devices/machine/7400.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Ryan Holtz
-/*****************************************************************************
-
- 7400 Quad 2-Input NAND Gate
-
-*****************************************************************************/
-
-#include "emu.h"
-#include "7400.h"
-
-DEFINE_DEVICE_TYPE(TTL7400, ttl7400_device, "7400", "7400 Quad 2-Input NAND Gate")
-
-ttl7400_device::ttl7400_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
- : device_t(mconfig, TTL7400, tag, owner, clock)
- , m_y_func(*this)
- , m_a(0)
- , m_b(0)
- , m_y(0)
-{
-}
-
-void ttl7400_device::device_start()
-{
- save_item(NAME(m_a));
- save_item(NAME(m_b));
- save_item(NAME(m_y));
-}
-
-void ttl7400_device::device_reset()
-{
- m_a = 0;
- m_b = 0;
- m_y = 0;
-}
-
-void ttl7400_device::update()
-{
- uint8_t last_y = m_y;
-
- m_y = (m_a & m_b) & 0xf;
-
- if (m_y != last_y)
- {
- for (std::size_t bit = 0; bit < 4; bit++)
- {
- if (BIT(m_y, bit) == BIT(last_y, bit))
- continue;
-
- m_y_func[bit](BIT(m_y, bit));
- }
- }
-}
-
-void ttl7400_device::a_w(uint8_t line, uint8_t state)
-{
- uint8_t old_a = m_a;
- m_a &= ~(1 << line);
- m_a |= (state << line);
- if (old_a != m_a)
- update();
-}
-
-void ttl7400_device::b_w(uint8_t line, uint8_t state)
-{
- uint8_t old_b = m_b;
- m_b &= ~(1 << line);
- m_b |= (state << line);
- if (old_b != m_b)
- update();
-}
-
-uint8_t ttl7400_device::y_r(uint8_t line)
-{
- return (m_y >> line) & 1;
-}
-
-
-void ttl7400_device::a1_w(int state) { a_w(0, state); }
-void ttl7400_device::a2_w(int state) { a_w(1, state); }
-void ttl7400_device::a3_w(int state) { a_w(2, state); }
-void ttl7400_device::a4_w(int state) { a_w(3, state); }
-
-void ttl7400_device::b1_w(int state) { b_w(0, state); }
-void ttl7400_device::b2_w(int state) { b_w(1, state); }
-void ttl7400_device::b3_w(int state) { b_w(2, state); }
-void ttl7400_device::b4_w(int state) { b_w(3, state); }
-
-int ttl7400_device::y1_r() { return y_r(0); }
-int ttl7400_device::y2_r() { return y_r(1); }
-int ttl7400_device::y3_r() { return y_r(2); }
-int ttl7400_device::y4_r() { return y_r(3); }
diff --git a/src/devices/machine/7400.h b/src/devices/machine/7400.h
deleted file mode 100644
index ec449aabc7c..00000000000
--- a/src/devices/machine/7400.h
+++ /dev/null
@@ -1,85 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Ryan Holtz
-/*****************************************************************************
-
- 7400 Quad 2-Input NAND Gate
-
-***********************************************************************
-
- Connection Diagram:
- ___ ___
- 1A 1 |* u | 14 Vcc
- 1B 2 | | 13 4B
- 1Y 3 | | 12 4A
- 2A 4 | | 11 4Y
- 2B 5 | | 10 3B
- 2Y 6 | | 9 3A
- GND 7 |_______| 8 3Y
-
- Truth Table:
- ___________
- | A | B | Y |
- |---|---|---|
- | 0 | 0 | 0 |
- | 0 | 1 | 0 |
- | 1 | 0 | 0 |
- | 1 | 1 | 1 |
- |___|___|___|
-
-**********************************************************************/
-
-#ifndef MAME_MACHINE_7400_H
-#define MAME_MACHINE_7400_H
-
-#pragma once
-
-class ttl7400_device : public device_t
-{
-public:
- // construction/destruction
- ttl7400_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
-
- template <std::size_t Bit> auto y_cb() { return m_y_func[Bit].bind(); }
-
- // public interfaces
- void a1_w(int state);
- void a2_w(int state);
- void a3_w(int state);
- void a4_w(int state);
- void b1_w(int state);
- void b2_w(int state);
- void b3_w(int state);
- void b4_w(int state);
-
- int y1_r();
- int y2_r();
- int y3_r();
- int y4_r();
-
-protected:
- void a_w(uint8_t line, uint8_t state);
- void b_w(uint8_t line, uint8_t state);
- uint8_t y_r(uint8_t line);
-
- // device-level overrides
- virtual void device_start() override;
- virtual void device_reset() override;
-
-private:
- void update();
-
- // callbacks
- devcb_write_line::array<4> m_y_func;
-
- // inputs
- uint8_t m_a; // pins 1,4,9,12
- uint8_t m_b; // pins 2,5,10,13
-
- // outputs
- uint8_t m_y; // pins 3,6,8,11
-};
-
-// device type definition
-DECLARE_DEVICE_TYPE(TTL7400, ttl7400_device)
-
-#endif // MAME_MACHINE_7400_H