mirror of
https://github.com/holub/mame
synced 2025-06-15 08:57:05 +03:00
microvsn: move lcd chip emulation to device (nw)
This commit is contained in:
parent
edcee4f8cb
commit
1c728274e9
@ -399,6 +399,18 @@ if (VIDEOS["HD66421"]~=null) then
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}
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}
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end
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end
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--------------------------------------------------
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--
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--@src/devices/video/hlcd0488.h,VIDEOS["HLCD0488"] = true
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--------------------------------------------------
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if (VIDEOS["HLCD0488"]~=null) then
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files {
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MAME_DIR .. "src/devices/video/hlcd0488.cpp",
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MAME_DIR .. "src/devices/video/hlcd0488.h",
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}
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end
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--------------------------------------------------
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--------------------------------------------------
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--
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--
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--@src/devices/video/hlcd0515.h,VIDEOS["HLCD0515"] = true
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--@src/devices/video/hlcd0515.h,VIDEOS["HLCD0515"] = true
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@ -319,6 +319,7 @@ VIDEOS["HD44780"] = true
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VIDEOS["HD61830"] = true
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VIDEOS["HD61830"] = true
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VIDEOS["HD63484"] = true
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VIDEOS["HD63484"] = true
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--VIDEOS["HD66421"] = true
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--VIDEOS["HD66421"] = true
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--VIDEOS["HLCD0488"] = true
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--VIDEOS["HLCD0515"] = true
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--VIDEOS["HLCD0515"] = true
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--VIDEOS["HLCD0538"] = true
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--VIDEOS["HLCD0538"] = true
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VIDEOS["HUC6202"] = true
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VIDEOS["HUC6202"] = true
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@ -345,6 +345,7 @@ VIDEOS["HD61603"] = true
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VIDEOS["HD61830"] = true
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VIDEOS["HD61830"] = true
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--VIDEOS["HD63484"] = true
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--VIDEOS["HD63484"] = true
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VIDEOS["HD66421"] = true
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VIDEOS["HD66421"] = true
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VIDEOS["HLCD0488"] = true
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VIDEOS["HLCD0515"] = true
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VIDEOS["HLCD0515"] = true
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VIDEOS["HLCD0538"] = true
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VIDEOS["HLCD0538"] = true
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VIDEOS["HP1LL3"] = true
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VIDEOS["HP1LL3"] = true
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104
src/devices/video/hlcd0488.cpp
Normal file
104
src/devices/video/hlcd0488.cpp
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@ -0,0 +1,104 @@
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// license:BSD-3-Clause
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// copyright-holders:Wilbert Pol
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/*
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Hughes HLCD 0488 LCD Driver
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16*16 segment outputs, direct drive
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TODO:
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- should all control be edge-triggered?
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- output polarity flip
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*/
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#include "emu.h"
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#include "video/hlcd0488.h"
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DEFINE_DEVICE_TYPE(HLCD0488, hlcd0488_device, "hlcd0488", "Hughes HLCD 0488 LCD Driver")
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//-------------------------------------------------
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// constructor
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//-------------------------------------------------
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hlcd0488_device::hlcd0488_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) :
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device_t(mconfig, HLCD0488, tag, owner, clock),
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m_write_cols(*this)
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{
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memset(m_latch, 0, 8);
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memset(m_hold, 0, 8);
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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 hlcd0488_device::device_start()
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{
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m_write_cols.resolve_safe();
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m_sync_timer = timer_alloc();
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// register for savestates
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save_item(NAME(m_latch_pulse));
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save_item(NAME(m_latch_pulse_prev));
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save_item(NAME(m_data_clk));
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save_item(NAME(m_data_clk_prev));
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save_item(NAME(m_data));
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save_item(NAME(m_count));
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save_item(NAME(m_latch));
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save_item(NAME(m_hold));
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}
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//-------------------------------------------------
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// handlers
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//-------------------------------------------------
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void hlcd0488_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
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{
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// Latch pulse, when high, resets the %8 latch address counter
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if (m_latch_pulse)
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m_count = 0;
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// The addressed latches load when -Data Clk is low
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if (!m_data_clk)
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m_latch[m_count] = m_data;
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// The latch address counter is incremented on rising edges of -Data Clk
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if (!m_data_clk_prev && m_data_clk && !m_latch_pulse)
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m_count = (m_count + 1) & 7;
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// A parallel transfer of data from the addressed latches to the holding latches occurs
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// whenever Latch Pulse is high and -Data Clk is high
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if (m_latch_pulse && m_data_clk)
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{
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for (int i = 0; i < 8; i++)
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m_hold[i] = m_latch[i];
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u16 row = (m_hold[0] << 12) | (m_hold[1] << 8) | (m_hold[2] << 4) | m_hold[3];
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u16 col = (m_hold[4] << 12) | (m_hold[5] << 8) | (m_hold[6] << 4) | m_hold[7];
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m_write_cols(row, col);
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}
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m_latch_pulse_prev = m_latch_pulse;
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m_data_clk_prev = m_data_clk;
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}
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WRITE_LINE_MEMBER(hlcd0488_device::latch_pulse_w)
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{
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m_latch_pulse = state ? 1 : 0;
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m_sync_timer->adjust(attotime::zero);
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}
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WRITE_LINE_MEMBER(hlcd0488_device::data_clk_w)
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{
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m_data_clk = state ? 1 : 0;
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m_sync_timer->adjust(attotime::zero);
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}
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void hlcd0488_device::data_w(u8 data)
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{
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m_data = data & 0xf;
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m_sync_timer->adjust(attotime::zero);
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}
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78
src/devices/video/hlcd0488.h
Normal file
78
src/devices/video/hlcd0488.h
Normal file
@ -0,0 +1,78 @@
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// license:BSD-3-Clause
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// copyright-holders:Wilbert Pol
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/*
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Hughes HLCD 0488 LCD Driver
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*/
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#ifndef MAME_VIDEO_HLCD0488_H
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#define MAME_VIDEO_HLCD0488_H
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#pragma once
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// pinout reference
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/*
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____ ____
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ROW 4 1 |* \_/ | 40 VDD
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ROW 5 2 | | 39 ROW 1
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ROW 6 3 | | 38 ROW 2
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/DATA CLK 4 | | 37 ROW 3
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LATCH PULSE 5 | | 36 COL 1
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DATA 0 6 | | 35 COL 2
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DATA 1 7 | | 34 COL 3
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DATA 2 8 | | 33 COL 4
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DATA 3 9 | | 32 COL 5
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ROW 16 10 | HLCD 0488 | 31 COL 6
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ROW 15 11 | | 30 COL 7
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ROW 14 12 | | 29 COL 8
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ROW 13 13 | | 28 COL 9
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ROW 12 14 | | 27 COL 10
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ROW 11 15 | | 26 COL 11
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ROW 10 16 | | 25 COL 12
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ROW 9 17 | | 24 COL 13
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ROW 8 18 | | 23 COL 14
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ROW 7 19 | | 22 COL 15
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GND 20 |___________| 21 COL 16
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*/
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class hlcd0488_device : public device_t
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{
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public:
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hlcd0488_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
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// configuration helpers
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auto write_cols() { return m_write_cols.bind(); } // COL pins in data, ROW pins in offset
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DECLARE_WRITE_LINE_MEMBER(latch_pulse_w);
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DECLARE_WRITE_LINE_MEMBER(data_clk_w);
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void data_w(u8 data);
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protected:
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// device-level overrides
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virtual void device_start() override;
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virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
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private:
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// pin state
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int m_latch_pulse = 0;
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int m_latch_pulse_prev = 0;
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int m_data_clk = 0;
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int m_data_clk_prev = 0;
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u8 m_data = 0;
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u8 m_count = 0;
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u8 m_latch[8];
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u8 m_hold[8];
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emu_timer *m_sync_timer;
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devcb_write16 m_write_cols;
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};
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DECLARE_DEVICE_TYPE(HLCD0488, hlcd0488_device)
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#endif // MAME_VIDEO_HLCD0488_H
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@ -1,6 +1,6 @@
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// license:BSD-3-Clause
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// license:BSD-3-Clause
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// copyright-holders:Wilbert Pol, hap
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// copyright-holders:Wilbert Pol, hap
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// thanks-to:Kevin Horton, Sean Riddle
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// thanks-to:Dan Boris, Kevin Horton, Sean Riddle
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/***************************************************************************
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/***************************************************************************
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Milton Bradley MicroVision, handheld game console
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Milton Bradley MicroVision, handheld game console
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@ -19,7 +19,8 @@ The Connect Four I8021 game is clocked at around 2MHz. The TMS1100 versions
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of the games were clocked at around 500KHz, 550KHz, or 350KHz.
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of the games were clocked at around 500KHz, 550KHz, or 350KHz.
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Each game had a screen- and keypad overlay attached to it, MAME external
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Each game had a screen- and keypad overlay attached to it, MAME external
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artwork is recommended.
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artwork is recommended. It's also advised to disable screen filtering,
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eg. with -prescale, or on Windows simply -video gdi.
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TODO:
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TODO:
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- Finish support for i8021 based cartridges
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- Finish support for i8021 based cartridges
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@ -34,6 +35,7 @@ TODO:
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#include "cpu/tms1000/tms1100.h"
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#include "cpu/tms1000/tms1100.h"
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#include "sound/dac.h"
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#include "sound/dac.h"
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#include "sound/volt_reg.h"
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#include "sound/volt_reg.h"
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#include "video/hlcd0488.h"
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#include "emupal.h"
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#include "emupal.h"
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#include "softlist.h"
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#include "softlist.h"
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@ -54,6 +56,7 @@ public:
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m_dac( *this, "dac" ),
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m_dac( *this, "dac" ),
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m_i8021( *this, "i8021_cpu" ),
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m_i8021( *this, "i8021_cpu" ),
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m_tms1100( *this, "tms1100_cpu" ),
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m_tms1100( *this, "tms1100_cpu" ),
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m_lcd(*this, "lcd"),
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m_cart(*this, "cartslot"),
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m_cart(*this, "cartslot"),
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m_inputs(*this, "COL%u", 0),
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m_inputs(*this, "COL%u", 0),
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m_paddle(*this, "PADDLE"),
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m_paddle(*this, "PADDLE"),
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@ -96,6 +99,7 @@ private:
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required_device<dac_byte_interface> m_dac;
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required_device<dac_byte_interface> m_dac;
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optional_device<i8021_device> m_i8021;
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optional_device<i8021_device> m_i8021;
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optional_device<tms1100_cpu_device> m_tms1100;
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optional_device<tms1100_cpu_device> m_tms1100;
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required_device<hlcd0488_device> m_lcd;
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required_device<generic_slot_device> m_cart;
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required_device<generic_slot_device> m_cart;
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required_ioport_array<3> m_inputs;
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required_ioport_array<3> m_inputs;
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required_ioport m_paddle;
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required_ioport m_paddle;
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@ -116,7 +120,7 @@ private:
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// generic variables
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// generic variables
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void update_lcd();
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void update_lcd();
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void lcd_write(uint8_t control, uint8_t data);
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DECLARE_WRITE16_MEMBER(lcd_output_w);
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void apply_settings(void);
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void apply_settings(void);
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@ -126,11 +130,9 @@ private:
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bool m_paddle_auto;
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bool m_paddle_auto;
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bool m_paddle_on;
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bool m_paddle_on;
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uint8_t m_lcd_latch[8];
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uint8_t m_lcd_data[16][16];
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uint8_t m_lcd_holding_latch[8];
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u16 m_lcd_row;
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uint8_t m_lcd_latch_index;
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u16 m_lcd_col;
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uint8_t m_lcd[16][16];
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uint8_t m_lcd_control_old;
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};
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};
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@ -165,20 +167,14 @@ void microvision_state::machine_start()
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save_item(NAME(m_t1));
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save_item(NAME(m_t1));
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save_item(NAME(m_r));
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save_item(NAME(m_r));
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save_item(NAME(m_o));
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save_item(NAME(m_o));
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save_item(NAME(m_lcd_latch));
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save_item(NAME(m_lcd_latch_index));
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save_item(NAME(m_lcd));
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save_item(NAME(m_lcd_control_old));
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save_item(NAME(m_lcd_holding_latch));
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}
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}
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void microvision_state::machine_reset()
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void microvision_state::machine_reset()
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{
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{
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apply_settings();
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apply_settings();
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std::fill(std::begin(m_lcd_latch), std::end(m_lcd_latch), 0);
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for (auto &elem : m_lcd)
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for (auto &elem : m_lcd_data)
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std::fill(std::begin(elem), std::end(elem), 0);
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std::fill(std::begin(elem), std::end(elem), 0);
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m_o = 0;
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m_o = 0;
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@ -193,15 +189,15 @@ void microvision_state::machine_reset()
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void microvision_state::update_lcd()
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void microvision_state::update_lcd()
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{
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{
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uint16_t row = ( m_lcd_holding_latch[0] << 12 ) | ( m_lcd_holding_latch[1] << 8 ) | ( m_lcd_holding_latch[2] << 4 ) | m_lcd_holding_latch[3];
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uint16_t row = m_lcd_row;
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uint16_t col = ( m_lcd_holding_latch[4] << 12 ) | ( m_lcd_holding_latch[5] << 8 ) | ( m_lcd_holding_latch[6] << 4 ) | m_lcd_holding_latch[7];
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uint16_t col = m_lcd_col;
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LOG( "row = %04x, col = %04x\n", row, col );
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LOG( "row = %04x, col = %04x\n", row, col );
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for ( int i = 0; i < 16; i++ )
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for ( int i = 0; i < 16; i++ )
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{
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{
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uint16_t temp = row;
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uint16_t temp = row;
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for (auto & elem : m_lcd)
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for (auto & elem : m_lcd_data)
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{
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{
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if ( ( temp & col ) & 0x8000 )
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if ( ( temp & col ) & 0x8000 )
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{
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{
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@ -220,7 +216,7 @@ uint32_t microvision_state::screen_update(screen_device &screen, bitmap_ind16 &b
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{
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{
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for ( uint8_t j = 0; j < 16; j++ )
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for ( uint8_t j = 0; j < 16; j++ )
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{
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{
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bitmap.pix16(i,j) = m_lcd [i] [j];
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bitmap.pix16(i,j) = m_lcd_data [i] [j];
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}
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}
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}
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}
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@ -232,7 +228,7 @@ WRITE_LINE_MEMBER(microvision_state::screen_vblank)
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{
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{
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if ( state )
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if ( state )
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{
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{
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for (auto & elem : m_lcd)
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for (auto & elem : m_lcd_data)
|
||||||
{
|
{
|
||||||
for ( int j= 0; j < 16; j++ )
|
for ( int j= 0; j < 16; j++ )
|
||||||
{
|
{
|
||||||
@ -246,47 +242,11 @@ WRITE_LINE_MEMBER(microvision_state::screen_vblank)
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
WRITE16_MEMBER( microvision_state::lcd_output_w )
|
||||||
/*
|
|
||||||
control is signals LCD5 LCD4
|
|
||||||
LCD5 = -Data Clk on 0488
|
|
||||||
LCD4 = Latch pulse on 0488
|
|
||||||
LCD3 = Data 0
|
|
||||||
LCD2 = Data 1
|
|
||||||
LCD1 = Data 2
|
|
||||||
LCD0 = Data 3
|
|
||||||
data is signals LCD3 LCD2 LCD1 LCD0
|
|
||||||
*/
|
|
||||||
void microvision_state::lcd_write(uint8_t control, uint8_t data)
|
|
||||||
{
|
{
|
||||||
// Latch pulse, when high, resets the %8 latch address counter
|
m_lcd_row = offset;
|
||||||
if ( control & 0x01 ) {
|
m_lcd_col = data;
|
||||||
m_lcd_latch_index = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
// The addressed latches load when -Data Clk is low
|
|
||||||
if ( ! ( control & 0x02 ) ) {
|
|
||||||
m_lcd_latch[ m_lcd_latch_index & 0x07 ] = data & 0x0f;
|
|
||||||
}
|
|
||||||
|
|
||||||
// The latch address counter is incremented on rising edges of -Data Clk
|
|
||||||
if ( ( ! ( m_lcd_control_old & 0x02 ) ) && ( control & 0x02 ) ) {
|
|
||||||
// Check if Latch pule is low
|
|
||||||
if ( ! ( control & 0x01 ) ) {
|
|
||||||
m_lcd_latch_index++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// A parallel transfer of data from the addressed latches to the holding latches occurs
|
|
||||||
// whenever Latch Pulse is high and -Data Clk is high
|
|
||||||
if ( control == 3 ) {
|
|
||||||
for ( int i = 0; i < 8; i++ ) {
|
|
||||||
m_lcd_holding_latch[i] = m_lcd_latch[i];
|
|
||||||
}
|
|
||||||
update_lcd();
|
update_lcd();
|
||||||
}
|
|
||||||
|
|
||||||
m_lcd_control_old = control;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
@ -331,7 +291,9 @@ WRITE8_MEMBER( microvision_state::i8021_p1_write )
|
|||||||
{
|
{
|
||||||
LOG( "p1_write: %02x\n", data );
|
LOG( "p1_write: %02x\n", data );
|
||||||
|
|
||||||
lcd_write( data & 0x03, data >> 4 );
|
m_lcd->data_w(data >> 4 & 0xf);
|
||||||
|
m_lcd->latch_pulse_w(BIT(data, 0));
|
||||||
|
m_lcd->data_clk_w(BIT(data, 1));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
@ -433,9 +395,7 @@ WRITE16_MEMBER( microvision_state::tms1100_write_o )
|
|||||||
LOG("write_o: %04x\n", data);
|
LOG("write_o: %04x\n", data);
|
||||||
|
|
||||||
// O0-O3: LCD data
|
// O0-O3: LCD data
|
||||||
m_o = data;
|
m_lcd->data_w(data & 0xf);
|
||||||
|
|
||||||
lcd_write( ( m_r >> 6 ) & 0x03, m_o & 0x0f );
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
@ -449,8 +409,8 @@ WRITE16_MEMBER( microvision_state::tms1100_write_r )
|
|||||||
{
|
{
|
||||||
// range is ~360us to ~2663us (measured on 4952-79 REV B PCB)
|
// range is ~360us to ~2663us (measured on 4952-79 REV B PCB)
|
||||||
// note that the games don't use the whole range, so there's a deadzone around the edges
|
// note that the games don't use the whole range, so there's a deadzone around the edges
|
||||||
float step = (2663 - 360) / 255.0;
|
float step = (2000 - 500) / 255.0; // approximate it
|
||||||
m_paddle_timer->adjust(attotime::from_usec(360 + m_paddle->read() * step));
|
m_paddle_timer->adjust(attotime::from_usec(500 + m_paddle->read() * step));
|
||||||
}
|
}
|
||||||
|
|
||||||
// R0: speaker lead 2
|
// R0: speaker lead 2
|
||||||
@ -459,7 +419,8 @@ WRITE16_MEMBER( microvision_state::tms1100_write_r )
|
|||||||
|
|
||||||
// R6: LCD latch pulse
|
// R6: LCD latch pulse
|
||||||
// R7: LCD data clock
|
// R7: LCD data clock
|
||||||
lcd_write((data >> 6) & 0x03, m_o & 0x0f);
|
m_lcd->latch_pulse_w(BIT(data, 6));
|
||||||
|
m_lcd->data_clk_w(BIT(data, 7));
|
||||||
|
|
||||||
// R8-R10: input mux
|
// R8-R10: input mux
|
||||||
m_r = data;
|
m_r = data;
|
||||||
@ -640,13 +601,16 @@ void microvision_state::microvision(machine_config &config)
|
|||||||
m_tms1100->r().set(FUNC(microvision_state::tms1100_write_r));
|
m_tms1100->r().set(FUNC(microvision_state::tms1100_write_r));
|
||||||
|
|
||||||
/* video hardware */
|
/* video hardware */
|
||||||
|
HLCD0488(config, m_lcd);
|
||||||
|
m_lcd->write_cols().set(FUNC(microvision_state::lcd_output_w));
|
||||||
|
|
||||||
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
|
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
|
||||||
screen.set_refresh_hz(60);
|
screen.set_refresh_hz(60);
|
||||||
screen.set_vblank_time(0);
|
screen.set_vblank_time(0);
|
||||||
screen.set_screen_update(FUNC(microvision_state::screen_update));
|
screen.set_screen_update(FUNC(microvision_state::screen_update));
|
||||||
screen.screen_vblank().set(FUNC(microvision_state::screen_vblank));
|
screen.screen_vblank().set(FUNC(microvision_state::screen_vblank));
|
||||||
screen.set_size(16, 16);
|
screen.set_size(16, 16);
|
||||||
screen.set_visarea(0, 15, 0, 15);
|
screen.set_visarea_full();
|
||||||
screen.set_palette("palette");
|
screen.set_palette("palette");
|
||||||
|
|
||||||
PALETTE(config, "palette", FUNC(microvision_state::microvision_palette), 16);
|
PALETTE(config, "palette", FUNC(microvision_state::microvision_palette), 16);
|
||||||
|
Loading…
Reference in New Issue
Block a user