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vt100_kbd: Fix for last fix (nw)

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This commit is contained in:
AJR 2018-03-17 17:23:48 -04:00
parent ffd19cda0f
commit 48f77bb45b
1 changed files with 13 additions and 6 deletions
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19
src/mame/machine/vt100_kbd.cpp
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@ -13,6 +13,8 @@
#include "emu.h"
#include "machine/vt100_kbd.h"
#include "logmacro.h"
//**************************************************************************
// DEVICE DEFINITIONS
@ -275,10 +277,7 @@ WRITE_LINE_MEMBER(vt100_keyboard_device::signal_line_w)
m_speaker->set_state(BIT(data, 7));
if (BIT(data, 6))
{
m_last_scan = 0;
m_scan_counter->reset_w(0);
}
}
}
@ -310,10 +309,18 @@ WRITE8_MEMBER(vt100_keyboard_device::key_scan_w)
{
u8 input_row = m_key_row[(data >> 1) & 15]->read();
if (!BIT(input_row, (data >> 5) & 7))
{
if (data != 0xff)
LOG("Keycode pressed: %02X\n", (data >> 1) & 0x7f);
m_uart->set_transmit_data((data >> 1) & 0x7f);
}
}
else if (!BIT(data, 7) && BIT(m_last_scan, 7))
m_scan_counter->reset_w(1);
m_last_scan = data;
if (!BIT(data, 7) && BIT(m_last_scan, 7))
{
m_last_scan = 0;
m_scan_counter->reset_w(1);
}
else
m_last_scan = data;
}