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(mess) sed1200 family of LCD controllers [O. Galibert]
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Olivier Galibert
parent
bc16ecffe5
commit
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/***************************************************************************
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SED1200
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A LCD controller.
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The D/F variants have a packaging difference (QFP80 vs. bare chip).
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The A/B variants have an internal CGROM difference (jis
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vs. european characters)
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****************************************************************************
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Copyright Olivier Galibert
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name 'MAME' nor the names of its contributors may be
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used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY OLIVIER GALIBERT ''AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL OLIVIER GALIBERT BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#include "emu.h"
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#include "sed1200.h"
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const device_type SED1200D0A = &device_creator<sed1200d0a_device>;
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const device_type SED1200F0A = &device_creator<sed1200f0a_device>;
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const device_type SED1200D0B = &device_creator<sed1200d0b_device>;
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const device_type SED1200F0B = &device_creator<sed1200f0b_device>;
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ROM_START( sed1200x0a )
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ROM_REGION( 0x800, "cgrom", 0 )
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ROM_LOAD( "sed1200-a.bin", 0x000, 0x800, CRC(e8c28054) SHA1(086406eb74e9ed97b309d2a4bdedc567626e9a98))
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ROM_END
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ROM_START( sed1200x0b )
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ROM_REGION( 0x800, "cgrom", 0 )
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ROM_LOAD( "sed1200-b.bin", 0x000, 0x800, CRC(d0741f51) SHA1(c8c856f1357286a2c8c806af81724a828345357e))
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ROM_END
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sed1200_device::sed1200_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock) :
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device_t(mconfig, type, name, tag, owner, clock)
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{
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m_shortname = "sed1200";
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}
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sed1200d0a_device::sed1200d0a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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sed1200_device(mconfig, SED1200D0A, "sed1200d-0a", tag, owner, clock)
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{
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}
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sed1200f0a_device::sed1200f0a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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sed1200_device(mconfig, SED1200F0A, "sed1200f-0a", tag, owner, clock)
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{
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}
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sed1200d0b_device::sed1200d0b_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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sed1200_device(mconfig, SED1200D0B, "sed1200d-0b", tag, owner, clock)
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{
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}
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sed1200f0b_device::sed1200f0b_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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sed1200_device(mconfig, SED1200F0B, "sed1200f-0b", tag, owner, clock)
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{
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}
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const rom_entry *sed1200d0a_device::device_rom_region() const
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{
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return ROM_NAME(sed1200x0a);
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}
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const rom_entry *sed1200f0a_device::device_rom_region() const
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{
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return ROM_NAME(sed1200x0a);
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}
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const rom_entry *sed1200d0b_device::device_rom_region() const
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{
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return ROM_NAME(sed1200x0b);
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}
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const rom_entry *sed1200f0b_device::device_rom_region() const
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{
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return ROM_NAME(sed1200x0b);
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}
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void sed1200_device::device_start()
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{
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memset(cgram, 0, sizeof(cgram));
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memset(ddram, 0, sizeof(ddram));
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if(memregion("cgrom"))
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cgrom = memregion("cgrom")->base();
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else
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cgrom = NULL;
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soft_reset();
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}
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void sed1200_device::soft_reset()
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{
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cursor_direction = false;
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cursor_blinking = false;
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cursor_full = false;
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cursor_on = false;
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display_on = false;
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cursor_address = 0x00;
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cgram_address = 0x00;
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}
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void sed1200_device::control_w(UINT8 data)
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{
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switch(data) {
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case 0x04: case 0x05:
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cursor_direction = data & 0x01;
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break;
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case 0x06: case 0x07:
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cursor_step();
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break;
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case 0x08: case 0x09:
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cursor_full = data & 0x01;
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break;
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case 0x0a: case 0x0b:
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cursor_blinking = data & 0x01;
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break;
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case 0x0c: case 0x0d:
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display_on = data & 0x01;
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break;
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case 0x0e: case 0x0f:
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cursor_on = data & 0x01;
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break;
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case 0x10:
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soft_reset();
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break;
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case 0x12: case 0x13:
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break; // Number of lines selection
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default:
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if((data & 0xf0) == 0x20)
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cgram_address = (data & 3)*8;
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else if((data & 0xe0) == 0x40) {
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cgram[cgram_address++] = data;
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if(cgram_address == 4*8)
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cgram_address = 0;
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} else if(data & 0x80) {
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cursor_address = data & 0x40 ? 10 : 0;
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cursor_address += (data & 0x3f) >= 10 ? 9 : data & 0x3f;
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}
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break;
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}
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}
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UINT8 sed1200_device::control_r()
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{
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return 0x00;
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}
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void sed1200_device::data_w(UINT8 data)
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{
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ddram[cursor_address] = data;
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cursor_step();
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}
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void sed1200_device::cursor_step()
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{
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if(cursor_direction) {
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if(cursor_address == 0 || cursor_address == 10)
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cursor_address += 9;
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else
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cursor_address --;
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} else {
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if(cursor_address == 9 || cursor_address == 19)
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cursor_address -= 9;
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else
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cursor_address ++;
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}
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}
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const UINT8 *sed1200_device::render()
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{
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memset(render_buf, 0, 20*8);
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if(!display_on)
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return render_buf;
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for(int i=0; i<20; i++) {
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UINT8 c = ddram[i];
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if(c < 4)
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memcpy(render_buf + 8*i, cgram + 8*c, 8);
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else if(cgrom)
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memcpy(render_buf + 8*i, cgrom + 8*c, 8);
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}
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if(cursor_on && (!cursor_blinking || (machine().time().as_ticks(2) & 1))) {
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if(cursor_full)
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for(int i=0; i<8; i++)
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render_buf[cursor_address*8+i] ^= 0x1f;
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else
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render_buf[cursor_address*8+7] ^= 0x1f;
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}
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return render_buf;
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}
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@ -0,0 +1,121 @@
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/***************************************************************************
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SED1200
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A LCD controller.
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The D/F variants are a packaging difference (QFP80 vs. bare chip).
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The A/B variants are an internal CGROM difference (jis
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vs. european characters)
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****************************************************************************
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Copyright Olivier Galibert
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
|
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name 'MAME' nor the names of its contributors may be
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used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY OLIVIER GALIBERT ''AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL OLIVIER GALIBERT BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#ifndef __SED1200_H__
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#define __SED1200_H__
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#define MCFG_SED1200D0A_ADD( _tag ) \
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MCFG_DEVICE_ADD( _tag, SED1200D0A, 0 )
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#define MCFG_SED1200F0A_ADD( _tag ) \
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MCFG_DEVICE_ADD( _tag, SED1200F0A, 0 )
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#define MCFG_SED1200D0B_ADD( _tag ) \
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MCFG_DEVICE_ADD( _tag, SED1200D0B, 0 )
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#define MCFG_SED1200F0B_ADD( _tag ) \
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MCFG_DEVICE_ADD( _tag, SED1200F0B, 0 )
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class sed1200_device : public device_t {
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public:
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sed1200_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock);
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void control_w(UINT8 data);
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UINT8 control_r();
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void data_w(UINT8 data);
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const UINT8 *render();
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protected:
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virtual void device_start();
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private:
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UINT8 cgram[4*8];
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UINT8 ddram[10*2];
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UINT8 render_buf[20*8];
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bool cursor_direction, cursor_blinking, cursor_full, cursor_on, display_on;
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UINT8 cursor_address, cgram_address;
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const UINT8 *cgrom;
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void soft_reset();
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void cursor_step();
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};
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class sed1200d0a_device : public sed1200_device {
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public:
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sed1200d0a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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protected:
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virtual const rom_entry *device_rom_region() const;
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};
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class sed1200f0a_device : public sed1200_device {
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public:
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sed1200f0a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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protected:
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virtual const rom_entry *device_rom_region() const;
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};
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class sed1200d0b_device : public sed1200_device {
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public:
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sed1200d0b_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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protected:
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virtual const rom_entry *device_rom_region() const;
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};
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class sed1200f0b_device : public sed1200_device {
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public:
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sed1200f0b_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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protected:
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virtual const rom_entry *device_rom_region() const;
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};
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extern const device_type SED1200D0A;
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extern const device_type SED1200F0A;
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extern const device_type SED1200D0B;
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extern const device_type SED1200F0B;
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#endif
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@ -527,6 +527,7 @@ $(MESSOBJ)/shared.a: \
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$(MESS_MACHINE)/mpc105.o \
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$(MESS_MACHINE)/mos6530.o \
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$(MESS_MACHINE)/s100.o \
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$(MESS_MACHINE)/sed1200.o \
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$(MESS_MACHINE)/serial.o \
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$(MESS_MACHINE)/ncr5380.o \
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$(MESS_MACHINE)/ncr5390.o \
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