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https://github.com/holub/mame
synced 2025-05-21 05:08:54 +03:00
Add Rockwell 10696 General Purpose Input/Output emulation WIP
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jbu
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commit
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@ -1302,6 +1302,15 @@ ifneq ($(filter PLA,$(MACHINES)),)
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MACHINEOBJS += $(MACHINEOBJ)/pla.o
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endif
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#-------------------------------------------------
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#
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#@src/emu/machine/r10696.h,MACHINES += R10696
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#-------------------------------------------------
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ifneq ($(filter R10696,$(MACHINES)),)
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MACHINEOBJS+= $(MACHINEOBJ)/r10696.o
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endif
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#-------------------------------------------------
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#
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#@src/emu/machine/r10788.h,MACHINES += R10788
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194
src/emu/machine/r10696.c
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194
src/emu/machine/r10696.c
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@ -0,0 +1,194 @@
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/**********************************************************************
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Rockwell 10696 General Purpose Input/Output (I/O)
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Copyright Nicola Salmoria and the MAME Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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REGISTER DESCRIPTION
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HEX Address Select Names
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-------------------------------------------------------
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A x x x x 1 0 1 0 Read Group A
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9 x x x x 1 0 0 1 Read Group B
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3 x x x x 0 0 1 1 Read Group C
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0 x x x x 0 0 0 0 Read Groups A | B | C
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1 x x x x 0 0 0 1 Read Groups B | C
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2 x x x x 0 0 1 0 Read Groups A | C
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8 x x x x 1 0 0 0 Read Groups A | B
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E x x x x 1 1 1 0 Set Group A
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D x x x x 1 1 0 1 Set Group B
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7 x x x x 0 1 1 1 Set Group C
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4 x x x x 0 1 0 0 Set Groups A, B and C
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5 x x x x 0 1 0 1 Set Groups B and C
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6 x x x x 0 1 1 0 Set Groups A and C
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C x x x x 1 1 0 0 Set Groups A and B
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Notes:
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Any of the I/O chips may be used to read or set any group
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(A, B, C) or combination of groups.
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**********************************************************************/
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#include "emu.h"
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#include "machine/r10696.h"
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#define VERBOSE 1
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#if VERBOSE
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#define LOG(x) logerror x
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#else
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#define LOG(x)
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#endif
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/*************************************
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*
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* Device interface
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*
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*************************************/
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const device_type R10696 = &device_creator<r10696_device>;
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r10696_device::r10696_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: device_t(mconfig, R10696, "Rockwell 10696", tag, owner, clock, "r10696", __FILE__),
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m_io_a(0), m_io_b(0), m_io_c(0),
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m_iord(*this), m_iowr(*this)
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{
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}
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/**
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* @brief r10696_device::device_start device-specific startup
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*/
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void r10696_device::device_start()
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{
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m_iord.resolve();
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m_iowr.resolve();
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save_item(NAME(m_io_a));
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save_item(NAME(m_io_b));
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save_item(NAME(m_io_c));
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}
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/**
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* @brief r10696_device::device_reset device-specific reset
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*/
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void r10696_device::device_reset()
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{
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m_io_a = 0;
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m_io_b = 0;
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m_io_c = 0;
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}
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/*************************************
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*
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* Constants
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*
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*************************************/
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/*************************************
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*
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* Command access handlers
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*
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*************************************/
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WRITE8_MEMBER( r10696_device::io_w )
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{
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assert(offset < 16);
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const UINT8 io_a = m_io_a;
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const UINT8 io_b = m_io_b;
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const UINT8 io_c = m_io_c;
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switch (offset)
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{
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case 0x0A: // Read Group A
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case 0x09: // Read Group B
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case 0x03: // Read Group C
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case 0x00: // Read Groups A | B | C
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case 0x01: // Read Groups B | C
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case 0x02: // Read Groups A | C
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case 0x08: // Read Groups A | B
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break;
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case 0x0E: // Set Group A
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m_io_a = data & 0x0f;
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break;
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case 0x0D: // Set Group B
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m_io_b = data & 0x0f;
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break;
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case 0x07: // Set Group C
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m_io_c = data & 0x0f;
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break;
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case 0x04: // Set Groups A, B and C
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m_io_a = m_io_b = m_io_c = data & 0x0f;
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break;
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case 0x05: // Set Groups B and C
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m_io_b = m_io_c = data & 0x0f;
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break;
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case 0x06: // Set Groups A and C
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m_io_a = m_io_c = data & 0x0f;
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break;
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case 0x0C: // Set Groups A and B
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m_io_a = m_io_b = data & 0x0f;
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break;
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}
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if (io_a != m_io_a)
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m_iowr(0, m_io_a, 0x0f);
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if (io_b != m_io_b)
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m_iowr(1, m_io_b, 0x0f);
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if (io_c != m_io_c)
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m_iowr(2, m_io_c, 0x0f);
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}
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READ8_MEMBER( r10696_device::io_r )
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{
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assert(offset < 16);
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UINT8 io_a, io_b, io_c;
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UINT8 data = 0xf;
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switch (offset)
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{
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case 0x0A: // Read Group A
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io_a = m_iord(0);
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data = io_a & 0x0f;
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break;
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case 0x09: // Read Group B
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io_b = m_iord(1);
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data = io_b & 0x0f;
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break;
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case 0x03: // Read Group C
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io_c = m_iord(2);
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data = io_c & 0x0f;
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break;
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case 0x00: // Read Groups A | B | C
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io_a = m_iord(0);
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io_b = m_iord(1);
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io_c = m_iord(2);
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data = (io_a | io_b | io_a) & 0x0f;
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break;
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case 0x01: // Read Groups B | C
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io_b = m_iord(1);
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io_c = m_iord(2);
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data = (io_b | io_c) & 0x0f;
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break;
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case 0x02: // Read Groups A | C
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io_a = m_iord(0);
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io_c = m_iord(2);
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data = (io_a | io_c) & 0x0f;
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break;
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case 0x08: // Read Groups A | B
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io_a = m_iord(0);
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io_b = m_iord(1);
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data = (io_a | io_b) & 0x0f;
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break;
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case 0x0E: // Set Group A
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case 0x0D: // Set Group B
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case 0x07: // Set Group C
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case 0x04: // Set Groups A, B and C
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case 0x05: // Set Groups B and C
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case 0x06: // Set Groups A and C
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case 0x0C: // Set Groups A and B
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break;
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}
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return data;
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}
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56
src/emu/machine/r10696.h
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56
src/emu/machine/r10696.h
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@ -0,0 +1,56 @@
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/**********************************************************************
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Rockwell 10696 General Purpose Input/Output (I/O)
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Juergen Buchmueller <pullmoll@t-online.de>
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The device decodes reads/write to a 16 byte I/O range defined
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by four wired inputs SC1, SC2, SC3 and SC4.
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It provides 12 inputs and 12 outputs in groups of three
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time 4 bits each.
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**********************************************************************/
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#ifndef __R10696_H__
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#define __R10696_H__
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#include "device.h"
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/*************************************
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*
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* Device configuration macros
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*
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*************************************/
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/* Set the writer used to update a display digit */
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#define MCFG_R10696_IO(_devcb_rd,_devcb_wr) \
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r10696_device::set_iord(*device, DEVCB_##_devcb_rd); \
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r10696_device::set_iowr(*device, DEVCB_##_devcb_wr);
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class r10696_device : public device_t
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{
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public:
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r10696_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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~r10696_device() {}
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DECLARE_READ8_MEMBER ( io_r );
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DECLARE_WRITE8_MEMBER( io_w );
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template<class _Object> static devcb_base &set_iord(device_t &device, _Object object) { return downcast<r10696_device &>(device).m_iord.set_callback(object); }
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template<class _Object> static devcb_base &set_iowr(device_t &device, _Object object) { return downcast<r10696_device &>(device).m_iowr.set_callback(object); }
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protected:
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// device-level overrides
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virtual void device_start();
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virtual void device_reset();
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private:
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UINT8 m_io_a; //!< input/output flip-flops group A
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UINT8 m_io_b; //!< input/output flip-flops group B
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UINT8 m_io_c; //!< input/output flip-flops group C
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devcb_read8 m_iord; //!< input line (read, offset = group, data = 4 bits)
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devcb_write8 m_iowr; //!< output line (write, offset = group, data = 4 bits)
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};
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extern const device_type R10696;
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#endif /* __R10696_H__ */
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@ -499,6 +499,7 @@ MACHINES += PCKEYBRD
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MACHINES += PIC8259
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MACHINES += PIT8253
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MACHINES += PLA
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MACHINES += R10696
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MACHINES += R10788
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#MACHINES += PROFILE
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#MACHINES += R64H156
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