mirror of
https://github.com/holub/mame
synced 2025-10-04 08:28:39 +03:00
Preliminary emulation of T6963C and related LCD controllers
This commit is contained in:
AJR
parent
43c856c9e9
commit
610897fd38
@ -814,6 +814,18 @@ if (VIDEOS["STVVDP"]~=null) then
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}
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end
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--------------------------------------------------
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--
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--@src/devices/video/t6963c.h,VIDEOS["T6963C"] = true
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--------------------------------------------------
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if (VIDEOS["T6963C"]~=null) then
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files {
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MAME_DIR .. "src/devices/video/t6963c.cpp",
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MAME_DIR .. "src/devices/video/t6963c.h",
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}
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end
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--------------------------------------------------
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--
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--@src/devices/video/t6a04.h,VIDEOS["T6A04"] = true
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@ -341,6 +341,7 @@ VIDEOS["SCN2674"] = true
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--VIDEOS["SED1520"] = true
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VIDEOS["SNES_PPU"] = true
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VIDEOS["STVVDP"] = true
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--VIDEOS["T6963C"] = true
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--VIDEOS["T6A04"] = true
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VIDEOS["TLC34076"] = true
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VIDEOS["TMS34061"] = true
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@ -360,6 +360,7 @@ VIDEOS["SED1330"] = true
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VIDEOS["SED1520"] = true
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VIDEOS["SNES_PPU"] = true
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VIDEOS["STVVDP"] = true
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VIDEOS["T6963C"] = true
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VIDEOS["T6A04"] = true
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VIDEOS["TEA1002"] = true
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--VIDEOS["TLC34076"] = true
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311
src/devices/video/t6963c.cpp
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311
src/devices/video/t6963c.cpp
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@ -0,0 +1,311 @@
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// license:BSD-3-Clause
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// copyright-holders:AJR
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/**********************************************************************
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Toshiba T6963C Dot Matrix LCD Controller
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Sharp LM24014H Dot Matrix LCD Unit
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**********************************************************************/
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#include "emu.h"
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#include "t6963c.h"
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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// device type definitions
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DEFINE_DEVICE_TYPE(T6963C, t6963c_device, "t6963c", "T6963C LCD Controller")
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DEFINE_DEVICE_TYPE(LM24014H, lm24014h_device, "lm24014h", "LM24014H LCD Unit (240x64)")
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//**************************************************************************
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// T6963C LCD CONTROLLER
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//**************************************************************************
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ALLOW_SAVE_TYPE(t6963c_device::auto_mode);
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//-------------------------------------------------
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// t6963c_device - constructor
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//-------------------------------------------------
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t6963c_device::t6963c_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
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: device_t(mconfig, T6963C, tag, owner, clock)
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, device_memory_interface(mconfig, *this)
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, m_display_config("display", ENDIANNESS_LITTLE, 8, 16, 0)
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, m_cgrom(*this, "cgrom", 0x400)
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, m_display_ram(nullptr)
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, m_data(0)
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, m_adp(0)
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, m_auto_mode(auto_mode::NONE)
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{
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}
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//-------------------------------------------------
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// memory_space_config - return the configuration
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// for the device's address spaces
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//-------------------------------------------------
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device_memory_interface::space_config_vector t6963c_device::memory_space_config() const
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{
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return space_config_vector {
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std::make_pair(0, &m_display_config),
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};
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void t6963c_device::device_start()
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{
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m_display_ram = &space(0);
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save_item(NAME(m_data));
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save_item(NAME(m_adp));
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save_item(NAME(m_auto_mode));
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void t6963c_device::device_reset()
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{
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m_auto_mode = auto_mode::NONE;
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}
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//-------------------------------------------------
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// read - read from the status or data register
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//-------------------------------------------------
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u8 t6963c_device::read(offs_t offset)
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{
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return BIT(offset, 0) ? 0x0b : 0x00;
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}
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//-------------------------------------------------
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// write - write to the command or data register
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//-------------------------------------------------
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void t6963c_device::write(offs_t offset, u8 data)
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{
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if (BIT(offset, 0))
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{
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// Command register
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do_command(data);
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}
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else
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{
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// Data register
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if (m_auto_mode == auto_mode::WRITE)
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{
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logerror("%s: Auto write %02X to %04X\n", machine().describe_context(), data, m_adp);
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m_display_ram->write_byte(m_adp++, data);
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}
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else
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m_data = (u16(data) << 8) | (data >> 8);
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}
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}
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//-------------------------------------------------
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// do_command - decode and execute one command
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//-------------------------------------------------
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void t6963c_device::do_command(u8 cmd)
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{
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if ((cmd & 0xf0) == 0x20)
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{
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switch (cmd & 0x0f)
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{
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case 0x01:
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logerror("%s: Setting cursor pointer X:Y = %02X:%02X\n", machine().describe_context(), m_data & 0xff, m_data >> 8);
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break;
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case 0x02:
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logerror("%s: Setting offset register for CG RAM at %04X to %04XH\n",
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machine().describe_context(),
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(m_data & 0x1f) << 11,
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(m_data & 0x1f) << 11 | 0x7ff);
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break;
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case 0x04:
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logerror("%s: Setting address pointer = %04X\n", machine().describe_context(), m_data);
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m_adp = m_data;
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break;
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default:
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logerror("%s: Setting unknown pointer = %04X\n", machine().describe_context(), m_data);
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break;
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}
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}
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else if ((cmd & 0xfd) == 0x40)
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{
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logerror("%s: Setting %s home address = %04X\n", machine().describe_context(),
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BIT(cmd, 1) ? "graphic" : "text",
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m_data);
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}
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else if ((cmd & 0xfd) == 0x41)
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{
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logerror("%s: Setting %s area = %d columns\n", machine().describe_context(),
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BIT(cmd, 1) ? "graphic" : "text",
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m_data);
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}
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else if ((cmd & 0xf0) == 0x80)
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{
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logerror("%s: %s mode, %s\n", machine().describe_context(),
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(cmd & 0x07) == 0x00 ? "OR"
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: (cmd & 0x07) == 0x01 ? "EXOR"
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: (cmd & 0x07) == 0x03 ? "AND"
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: (cmd & 0x07) == 0x04 ? "Text attribute"
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: "Unknown",
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BIT(cmd, 3) ? "external CG RAM" : "internal CG ROM");
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}
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else if ((cmd & 0xf0) == 0x90)
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{
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if (cmd == 0x90)
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logerror("%s: Display off\n", machine().describe_context());
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else
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logerror("%s: Text %s, graphic %s, cursor %s, blink %s\n",
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machine().describe_context(),
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BIT(cmd, 3) ? "on" : "off",
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BIT(cmd, 2) ? "on" : "off",
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BIT(cmd, 1) ? "on" : "off",
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BIT(cmd, 0) ? "on" : "off");
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}
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else if ((cmd & 0xf8) == 0xa0)
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{
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logerror("%s: Select %d-line cursor\n", machine().describe_context(), (cmd & 0x07) + 1);
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}
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else if ((cmd & 0xfe) == 0xb0)
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{
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logerror("%s: Set data auto %s\n", machine().describe_context(), BIT(cmd, 0) ? "read" : "write");
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m_auto_mode = BIT(cmd, 0) ? auto_mode::READ : auto_mode::WRITE;
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}
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else if (cmd == 0xb2)
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{
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logerror("%s: Auto reset\n", machine().describe_context());
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m_auto_mode = auto_mode::NONE;
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}
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else if ((cmd & 0xf0) == 0xc0)
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{
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if (BIT(cmd, 0))
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{
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logerror("%s: Read data from %04X and %s ADP\n", machine().describe_context(),
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BIT(cmd, 0) ? "read" : "write",
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m_adp,
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(cmd & 0x0e) == 0x00 ? "increment"
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: (cmd & 0x0e) == 0x02 ? "decrement"
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: (cmd & 0x0e) == 0x04 ? "nonvariable"
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: "invalid");
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}
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else
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{
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logerror("%s: Write %02X to %04X and %s ADP\n", machine().describe_context(),
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m_data >> 8,
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m_adp,
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(cmd & 0x0e) == 0x00 ? "increment"
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: (cmd & 0x0e) == 0x02 ? "decrement"
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: (cmd & 0x0e) == 0x04 ? "nonvariable"
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: "invalid");
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m_display_ram->write_byte(m_adp, m_data >> 8);
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if ((cmd & 0x0e) == 0x00)
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++m_adp;
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else if ((cmd & 0x0e) == 0x02)
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--m_adp;
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}
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}
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else if (cmd == 0xe0)
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{
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logerror("%s: Screen peek\n", machine().describe_context());
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}
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else if (cmd == 0xe8)
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{
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logerror("%s: Screen copy\n", machine().describe_context());
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}
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else if ((cmd & 0xf0) == 0xf0)
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{
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logerror("%s: %s bit %d\n", machine().describe_context(),
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BIT(cmd, 3) ? "Set" : "Reset",
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cmd & 0x07);
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}
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else
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{
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logerror("%s: Unknown command %02X\n", machine().describe_context(), cmd);
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}
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}
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//**************************************************************************
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// T6963C-BASED LCD UNITS
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//**************************************************************************
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//-------------------------------------------------
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// lm24014h_device - constructor
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//-------------------------------------------------
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lm24014h_device::lm24014h_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
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: device_t(mconfig, LM24014H, tag, owner, clock)
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, m_lcdc(*this, "lcdc")
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void lm24014h_device::device_start()
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{
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}
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//-------------------------------------------------
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// ram_map - address map for display memory
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//-------------------------------------------------
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void lm24014h_device::ram_map(address_map &map)
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{
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map.global_mask(0x1fff);
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map(0x0000, 0x1fff).ram(); // TC5564AFL-15
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}
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//-------------------------------------------------
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// device_add_mconfig - add device-specific
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// machine configuration
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//-------------------------------------------------
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void lm24014h_device::device_add_mconfig(machine_config &config)
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{
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T6963C(config, m_lcdc, 0); // XTAL is unknown
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m_lcdc->set_addrmap(0, &lm24014h_device::ram_map);
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}
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//-------------------------------------------------
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// lm24014h - ROM definition
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//-------------------------------------------------
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ROM_START(lm24014h)
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ROM_REGION(0x400, "lcdc:cgrom", 0)
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ROM_LOAD("lm24014w_0101.bin", 0x000, 0x400, CRC(ba5f0719) SHA1(4680d3ae99102369b4145604ee7c25fa83760784))
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ROM_END
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//-------------------------------------------------
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// device_rom_region - return a pointer to the
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// rom region description for this device
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//-------------------------------------------------
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const tiny_rom_entry *lm24014h_device::device_rom_region() const
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{
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return ROM_NAME(lm24014h);
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}
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93
src/devices/video/t6963c.h
Normal file
93
src/devices/video/t6963c.h
Normal file
@ -0,0 +1,93 @@
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// license:BSD-3-Clause
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// copyright-holders:AJR
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/**********************************************************************
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Toshiba T6963C Dot Matrix LCD Controller
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Sharp LM24014H Dot Matrix LCD Unit
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**********************************************************************/
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#ifndef MAME_VIDEO_T6963C_H
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#define MAME_VIDEO_T6963C_H 1
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#pragma once
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> t6963c_device
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class t6963c_device : public device_t, public device_memory_interface
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{
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enum class auto_mode : u8
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{
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READ = 0,
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WRITE = 1,
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NONE = 2
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};
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public:
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// construction/destruction
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t6963c_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
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// CPU read/write access
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u8 read(offs_t offset);
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void write(offs_t offset, u8 data);
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static constexpr feature_type unemulated_features() { return feature::GRAPHICS; }
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protected:
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// device-specific overrides
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virtual void device_start() override;
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virtual void device_reset() override;
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// device_memory_interface overrides
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virtual space_config_vector memory_space_config() const override;
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private:
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// internal helpers
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void do_command(u8 cmd);
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// configuration and object finders
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address_space_config m_display_config;
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required_region_ptr<u8> m_cgrom;
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address_space *m_display_ram;
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// internal state
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u16 m_data;
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u16 m_adp;
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auto_mode m_auto_mode;
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};
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// ======================> lm24014h_device
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class lm24014h_device : public device_t
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{
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public:
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// construction/destruction
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lm24014h_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
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// CPU read/write access
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u8 read(offs_t offset) { return m_lcdc->read(offset); }
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void write(offs_t offset, u8 data) { m_lcdc->write(offset, data); }
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protected:
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// device-specific overrides
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virtual void device_start() override;
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virtual void device_add_mconfig(machine_config &config) override;
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virtual const tiny_rom_entry *device_rom_region() const override;
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private:
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// internal configuration
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void ram_map(address_map &map);
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// internal LCD controller
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required_device<t6963c_device> m_lcdc;
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};
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// device type declarations
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DECLARE_DEVICE_TYPE(T6963C, t6963c_device)
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DECLARE_DEVICE_TYPE(LM24014H, lm24014h_device)
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#endif // MAME_VIDEO_T6963C_H
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@ -26,6 +26,7 @@
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#include "machine/ncr5380n.h"
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#include "machine/nscsi_cd.h"
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#include "machine/nscsi_hd.h"
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#include "video/t6963c.h"
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#include "screen.h"
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#include "emupal.h"
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#include "softlist.h"
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@ -54,26 +55,11 @@ private:
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required_device<address_map_bank_device> m_1m_bank;
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required_shared_ptr<uint16_t> m_mainram;
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DECLARE_READ16_MEMBER(lcd_r);
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DECLARE_WRITE16_MEMBER(lcd_w);
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DECLARE_WRITE16_MEMBER(ctrl_w);
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void k2000_palette(palette_device &palette) const;
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};
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// LCD controller is byte-wide, data at 0, status/control at 1.
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READ16_MEMBER(k2000_state::lcd_r)
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{
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return 0x0b0b;
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}
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WRITE16_MEMBER(k2000_state::lcd_w)
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{
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if (offset == 0)
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{
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printf("%c", data & 0x7f);
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}
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}
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WRITE16_MEMBER(k2000_state::ctrl_w)
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{
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data &= 0xff;
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@ -98,7 +84,7 @@ void k2000_state::k2000_map(address_map &map)
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// word writes to 000180 region - unknown
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// word writes to 000240 region - unknown
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map(0x000000, 0x1fffff).m(m_1m_bank, FUNC(address_map_bank_device::amap16));
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map(0x700000, 0x700003).rw(FUNC(k2000_state::lcd_r), FUNC(k2000_state::lcd_w));
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map(0x700000, 0x700003).rw("lcd", FUNC(lm24014h_device::read), FUNC(lm24014h_device::write)).umask16(0x00ff);
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map(0x7e0000, 0x7e0001).w(FUNC(k2000_state::ctrl_w));
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}
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|
||||
@ -117,6 +103,8 @@ void k2000_state::k2000(machine_config &config)
|
||||
|
||||
ADDRESS_MAP_BANK(config, "bank1m").set_map(&k2000_state::bank_map_1m).set_options(ENDIANNESS_BIG, 16, 24, 0x200000);
|
||||
|
||||
LM24014H(config, "lcd");
|
||||
|
||||
SPEAKER(config, "lspeaker").front_left();
|
||||
SPEAKER(config, "rspeaker").front_right();
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user