r9751: Add initial SMIOC device (#2423)

scripts/src/machine.lua

@@ -3191,3 +3191,15 @@ if (MACHINES["K054321"]~=null) then
 		MAME_DIR .. "src/devices/machine/k054321.h",
 	}
 end
+
+---------------------------------------------------
+--
+--@src/devices/machine/smioc.h,MACHINES["SMIOC"] = true
+---------------------------------------------------
+
+if (MACHINES["SMIOC"]~=null) then
+	files {
+		MAME_DIR .. "src/devices/machine/smioc.cpp",
+		MAME_DIR .. "src/devices/machine/smioc.h",
+	}
+end

scripts/target/mame/mess.lua

@@ -534,6 +534,7 @@ MACHINES["SECFLASH"] = true
 MACHINES["SEIBU_COP"] = true
 --MACHINES["SERFLASH"] = true
 MACHINES["SMC91C9X"] = true
+MACHINES["SMIOC"] = true
 MACHINES["SMPC"] = true
 MACHINES["STVCD"] = true
 MACHINES["TC0091LVC"] = true

src/devices/machine/smioc.cpp

@@ -0,0 +1,127 @@
+// license:GPL-2.0+
+// copyright-holders:Brandon Munger
+/**********************************************************************
+
+    ROLM 9751 9005 System Monitor Input/Output Card emulation
+
+**********************************************************************/
+
+/*
+    Device SMIOC
+    Board Copyright - IBM Corp 1989 Made in USA
+
+    Labels:
+        * 98R0083
+          MN 90770AR
+
+        * EC# A65048R
+
+    Hardware:
+        * CPU - Intel N80C188 L0450591 @ ??MHz - U23
+        * MCU - Signetics SC87C451CCA68 220CP079109KA 97D8641 - U70
+        * DMA - KS82C37A - U46, U47, U48, U49, U50
+        * Memory - NEC D43256AGU-10LL 8948A9038 SRAM 32KB - U51
+        * Memory - Mitsubishi M5M187AJ 046101-35 SRAM 64K X 1?? - U37
+    Logic:
+        * U8 - 22V10-25JC
+	* U33 - 22V10-25JC
+	* U61 - 22V10-25JC
+	* U63 - 22V10-25JC
+	* U87 - 22V10-20JC
+	* U88 - 22V10-20JC
+	* U102 - 22V10-25JC
+	* U111 - 22V10-25JC
+
+    Switches:
+        * S1 - Board reset
+
+    Program Memory:
+        * 0x00000 - 0x07FFF : SRAM D43256AGU-10LL 32KB
+        * 0xF8000 - 0xFFFFF : ROM 27C256 PLCC32 32KB
+
+    IO Memory:
+        * Unknown
+
+*/
+
+#include "emu.h"
+#include "smioc.h"
+
+
+//**************************************************************************
+//  MACROS / CONSTANTS
+//**************************************************************************
+
+#define I188_TAG     "smioc_i188" // U23
+
+//**************************************************************************
+//  DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(SMIOC, smioc_device, "rolm_smioc", "ROLM SMIOC")
+
+//-------------------------------------------------
+//  ROM( SMIOC )
+//-------------------------------------------------
+
+ROM_START( smioc )
+	ROM_REGION( 0x8000, "rom", 0 )
+	ROM_LOAD( "smioc.27256.u65", 0x0000, 0x8000, CRC(25b93192) SHA1(8ee9879033623490ce6703ba5429af2b16dbae84) )
+ROM_END
+
+//-------------------------------------------------
+//  rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const tiny_rom_entry *smioc_device::device_rom_region() const
+{
+	return ROM_NAME( smioc );
+}
+
+//-------------------------------------------------
+//  ADDRESS_MAP( smioc_mem )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( smioc_mem, AS_PROGRAM, 8, smioc_device )
+	AM_RANGE(0x00000, 0x07FFF) AM_RAM AM_SHARE("smioc_ram")
+	AM_RANGE(0xF8000, 0xFFFFF) AM_ROM AM_REGION("rom", 0)
+ADDRESS_MAP_END
+
+MACHINE_CONFIG_MEMBER( smioc_device::device_add_mconfig )
+	/* CPU - Intel 80C188 */
+	MCFG_CPU_ADD(I188_TAG, I80188, XTAL_20MHz / 2) // Clock division unknown
+	MCFG_CPU_PROGRAM_MAP(smioc_mem)
+MACHINE_CONFIG_END
+
+//**************************************************************************
+//  LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+//  smioc_device - constructor
+//-------------------------------------------------
+
+smioc_device::smioc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+	device_t(mconfig, SMIOC, tag, owner, clock),
+	m_smioccpu(*this, I188_TAG),
+	m_smioc_ram(*this, "smioc_ram")
+{
+}
+
+//-------------------------------------------------
+//  device_start - device-specific startup
+//-------------------------------------------------
+
+void smioc_device::device_start()
+{
+}
+
+//-------------------------------------------------
+//  device_reset - device-specific reset
+//-------------------------------------------------
+
+void smioc_device::device_reset()
+{
+	/* Reset CPU */
+	m_smioccpu->reset();
+}

src/devices/machine/smioc.h

@@ -0,0 +1,47 @@
+// license:GPL-2.0+
+// copyright-holders:Brandon Munger
+/**********************************************************************
+
+    ROLM 9751 9005 System Monitor Input/Ouput Card emulation
+
+**********************************************************************/
+
+#ifndef MAME_MACHINE_SMIOC_H
+#define MAME_MACHINE_SMIOC_H
+
+#pragma once
+
+#include "cpu/i86/i186.h"
+
+//**************************************************************************
+//  MACROS / CONSTANTS
+//**************************************************************************
+
+//**************************************************************************
+//  TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> smioc_device
+
+class smioc_device : public device_t
+{
+public:
+	/* Constructor and Destructor */
+	smioc_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;
+private:
+	/* Attached devices */
+	required_device<cpu_device> m_smioccpu;
+	required_shared_ptr<uint8_t> m_smioc_ram;
+};
+
+/* Device type */
+DECLARE_DEVICE_TYPE(SMIOC, smioc_device)
+
+#endif // MAME_MACHINE_SMIOC_H

src/mame/drivers/r9751.cpp

@@ -56,6 +56,7 @@
 #include "machine/wd33c93.h"
 
 #include "machine/pdc.h"
+#include "machine/smioc.h"
 #include "softlist.h"
 
 #define TERMINAL_TAG "terminal"
@@ -77,6 +78,7 @@ public:
 		: driver_device(mconfig, type, tag),
 		m_maincpu(*this, "maincpu"),
 		m_pdc(*this, "pdc"),
+		m_smioc(*this, "smioc"),
 		m_wd33c93(*this, "wd33c93"),
 		m_terminal(*this, TERMINAL_TAG),
 		m_main_ram(*this, "main_ram")
@@ -102,6 +104,7 @@ public:
 private:
 	required_device<cpu_device> m_maincpu;
 	required_device<pdc_device> m_pdc;
+	required_device<smioc_device> m_smioc;
 	required_device<wd33c93_device> m_wd33c93;
 	required_device<generic_terminal_device> m_terminal;
 	required_shared_ptr<uint32_t> m_main_ram;
@@ -558,6 +561,9 @@ static MACHINE_CONFIG_START( r9751 )
 	MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
 	MCFG_GENERIC_TERMINAL_KEYBOARD_CB(PUT(r9751_state, kbd_put))
 
+	/* i/o hardware */
+	MCFG_DEVICE_ADD("smioc", SMIOC, 0)
+
 	/* disk hardware */
 	MCFG_DEVICE_ADD("pdc", PDC, 0)
 	MCFG_PDC_R_CB(READ8(r9751_state, pdc_dma_r))