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wy55: Even better display parameters (nw)

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This commit is contained in:
AJR 2019-03-14 23:40:20 -04:00
parent 4eab47f746
commit fae6abca59
1 changed files with 10 additions and 8 deletions
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18
src/mame/drivers/wy55.cpp
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@ -4,14 +4,15 @@
Skeleton driver for Wyse WY-55 and related terminals.
The WY-55's custom video gate array is numbered 211019-05. The WY-185 is believed to run on similar hardware.
The WY-55's custom video gate array is numbered 211019-05. The WY-185 is believed to run on similar hardware, though with
85 Hz and 60 Hz vertical refresh rates rather than 80 Hz and 70 Hz.
***********************************************************************************************************************************/
#include "emu.h"
#include "cpu/mcs51/mcs51.h"
//#include "machine/ins8250.h"
//#include "machine/nvram.h"
#include "machine/nvram.h"
#include "screen.h"
class wy55_state : public driver_device
@ -61,8 +62,8 @@ void wy55_state::prog_map(address_map &map)
void wy55_state::ext_map(address_map &map)
{
map(0x0000, 0x1fff).ram();
map(0x8000, 0x9fff).ram();
map(0x0000, 0x1fff).ram().share("nvram0");
map(0x8000, 0x9fff).ram().share("nvram1");
map(0xa000, 0xbfff).ram().share("fontram");
//map(0xf028, 0xf037).rw("uart", FUNC(pc16552_device::read), FUNC(pc16552_device::write));
}
@ -73,18 +74,19 @@ INPUT_PORTS_END
void wy55_state::wy55(machine_config &config)
{
I8032(config, m_maincpu, 14.7456_MHz_XTAL); // exact type and clock divider not verified
I8032(config, m_maincpu, 14.7456_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &wy55_state::prog_map);
m_maincpu->set_addrmap(AS_IO, &wy55_state::ext_map);
m_maincpu->port_out_cb<1>().set_membank("progbank").bit(2);
//NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); // 8K SRAM + battery?
NVRAM(config, "nvram0", nvram_device::DEFAULT_ALL_0); // 8K SRAM + battery
NVRAM(config, "nvram1", nvram_device::DEFAULT_ALL_0); // 8K SRAM + battery
//PC16552D(config, "uart", 14.7456_MHz_XTAL / 2); // 16C452 (divider not verified)
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_raw(49.4235_MHz_XTAL, 1575, 0, 1200, 369, 0, 338);
//m_screen->set_raw(49.4235_MHz_XTAL * 2 / 3, 1050, 0, 800, 523, 0, 338);
m_screen->set_raw(49.4235_MHz_XTAL, 1575, 0, 1188, 448, 0, 416);
//m_screen->set_raw(49.4235_MHz_XTAL * 2 / 3, 1050, 0, 800, 392, 0, 338);
m_screen->set_screen_update(FUNC(wy55_state::screen_update));
}