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teleray10: Add 50 Hz switch (nw)

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This commit is contained in:
AJR 2019-10-25 21:57:43 -04:00
parent f81fbdb8d4
commit 02e64d7112
1 changed files with 12 additions and 2 deletions
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14
src/mame/drivers/teleray10.cpp
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@ -34,6 +34,7 @@ public:
, m_displayram(*this, "displayram")
, m_chargen(*this, "chargen")
, m_keys(*this, "KA%X", 0U)
, m_swmisc(*this, "SWMISC")
{
}
@ -76,6 +77,7 @@ private:
required_shared_ptr<u8> m_displayram;
required_region_ptr<u8> m_chargen;
required_ioport_array<16> m_keys;
required_ioport m_swmisc;
emu_timer *m_bell_timer;
@ -105,6 +107,14 @@ void teleray10_state::machine_reset()
TIMER_DEVICE_CALLBACK_MEMBER(teleray10_state::timer_expired)
{
// arbitrary VBLANK condition
if (param >= 240 && param < 290)
{
int height = BIT(m_swmisc->read(), 2) ? 310 : 372;
if (height != m_screen->height())
m_screen->configure(1000, height, m_screen->visible_area(), attotime::from_ticks(1000 * height, 18.6_MHz_XTAL).as_attoseconds());
}
if (m_outreg->q7_r())
{
m_timer_expired = true;
@ -443,10 +453,10 @@ static INPUT_PORTS_START(teleray10)
PORT_DIPNAME(0x01, 0x01, "Display Attributes") PORT_DIPLOCATION("7A:1")
PORT_DIPSETTING(0x01, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
PORT_DIPNAME(0x02, 0x02, "Inverse Display") // internal jumper near 4N
PORT_DIPNAME(0x02, 0x02, "Inverse Display") PORT_DIPLOCATION("INVRS:1") // internal jumper near 4M
PORT_DIPSETTING(0x02, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
PORT_DIPNAME(0x04, 0x04, "Refresh Rate") // internal jumper near 2K
PORT_DIPNAME(0x04, 0x04, "Refresh Rate") PORT_DIPLOCATION("50Hz:1") // internal jumper near 2J
PORT_DIPSETTING(0x00, "50 Hz")
PORT_DIPSETTING(0x04, "60 Hz")
PORT_DIPNAME(0x08, 0x08, "Serial Loop") PORT_DIPLOCATION("7A:8")