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8042kbdc.cpp: generate data for mouse only if mouse is enabled

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Now it is possible to use the nforcepc bios setup without it crashing.
This commit is contained in:
yz70s 2020-07-25 16:04:24 +02:00
parent 10302ecd6d
commit 97a680d67d
1 changed files with 5 additions and 3 deletions
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4
src/devices/machine/8042kbdc.cpp
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@ -209,6 +209,7 @@ void kbdc8042_device::device_timer(emu_timer &timer, device_timer_id id, int par
if (id == TIMER_UPDATE) if (id == TIMER_UPDATE)
{ {
at_8042_check_keyboard(); at_8042_check_keyboard();
if (m_mouse.on)
at_8042_check_mouse(); at_8042_check_mouse();
} }
} }
@ -277,6 +278,7 @@ uint8_t kbdc8042_device::data_r(offs_t offset)
case 4: case 4:
at_8042_check_keyboard(); at_8042_check_keyboard();
if (m_mouse.on)
at_8042_check_mouse(); at_8042_check_mouse();
if (m_keyboard.received || m_mouse.received) if (m_keyboard.received || m_mouse.received)
@ -321,7 +323,7 @@ void kbdc8042_device::data_w(offs_t offset, uint8_t data)
switch (m_operation_write_state) { switch (m_operation_write_state) {
case 0: case 0:
m_data = data; m_data = data;
m_sending=1; m_sending = 1;
m_keyboard_dev->write(data); m_keyboard_dev->write(data);
break; break;