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New working machine added

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----------
Computer Chess (Mattel) [hap, Sean Riddle]
This commit is contained in:
hap 2019-05-06 20:26:37 +02:00
parent 8fa2629a7e
commit 070f179694
2 changed files with 13 additions and 12 deletions
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19
src/devices/video/hlcd0515.cpp
View File

@ -9,9 +9,6 @@
0530: specifications unknown, pinout seems similar to 0569
0601: specifications unknown, pinout seems similar to 0569
TODO:
- read mode is untested
*/
#include "emu.h"
@ -129,7 +126,13 @@ void hlcd0515_device::set_control()
}
// clock 4: read/write mode
m_buffer = (m_control & 1) ? m_ram[m_rowsel] : 0;
if (m_control & 1)
{
m_buffer = m_ram[m_rowsel];
clock_data(-1);
}
else
m_buffer = 0;
}
void hlcd0569_device::set_control()
@ -143,11 +146,11 @@ void hlcd0515_device::clock_data(int col)
{
if (m_control & 1)
{
if (col < m_colmax)
m_buffer <<= 1;
m_dataout = m_buffer >> m_colmax & 1;
m_dataout = m_buffer & 1;
m_write_data(m_dataout);
if (col < m_colmax)
m_buffer >>= 1;
}
else
{

6
src/mame/drivers/mattelchess.cpp
View File

@ -11,8 +11,6 @@ Hardware notes:
- custom LCD screen with chess squares background
TODO:
- It goes bonkers at computer's turn, it reads from LCD RAM and seems it doesn't
get the data it expects
- add SAVE switch
- internal artwork
@ -120,8 +118,8 @@ WRITE8_MEMBER(mchess_state::lcd_w)
// d5: both LCDC DATA IN
for (int i = 0; i < 2; i++)
{
m_lcd[i]->clock_w(BIT(data, 4));
m_lcd[i]->data_w(BIT(data, 5));
m_lcd[i]->clock_w(BIT(~data, 4));
}
m_lcd_control = data;
@ -216,4 +214,4 @@ ROM_END
******************************************************************************/
// YEAR NAME PARENT CMP MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS
CONS( 1980, mchess, 0, 0, mchess, mchess, mchess_state, empty_init, "Mattel", "Computer Chess (Mattel)", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND_HW | MACHINE_NOT_WORKING )
CONS( 1980, mchess, 0, 0, mchess, mchess, mchess_state, empty_init, "Mattel", "Computer Chess (Mattel)", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND_HW )