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Fixed MT05436 (nw)

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This commit is contained in:
Ivan Vangelista 2014-01-29 18:28:30 +00:00
parent f00201f102
commit af4577fc40
2 changed files with 24 additions and 3 deletions
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6
src/mess/includes/genpc.h
View File

@ -78,7 +78,7 @@ public:
IRQ_CALLBACK_MEMBER(pc_irq_callback);
// interface to the keyboard
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
virtual DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
DECLARE_WRITE_LINE_MEMBER( keyboard_data_w );
virtual DECLARE_READ8_MEMBER ( pc_ppi_porta_r );
@ -131,7 +131,7 @@ public:
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const;
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
virtual DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
protected:
// device-level overrides
@ -173,6 +173,8 @@ protected:
public:
virtual DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
virtual DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
virtual DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
};

21
src/mess/machine/genpc.c
View File

@ -308,6 +308,19 @@ WRITE_LINE_MEMBER( ibm5150_mb_device::keyboard_clock_w )
}
}
WRITE_LINE_MEMBER( ec1841_mb_device::keyboard_clock_w )
{
if (!m_ppi_keyboard_clear && !state && !m_ppi_shift_enable)
{
m_ppi_shift_enable = m_ppi_shift_register & 0x01;
m_ppi_shift_register >>= 1;
m_ppi_shift_register |= m_ppi_data_signal << 7;
m_pic8259->ir1_w(m_ppi_shift_enable);
m_pc_kbdc->data_write_from_mb(!m_ppi_shift_enable);
}
}
WRITE_LINE_MEMBER( ibm5160_mb_device::keyboard_clock_w )
{
@ -448,6 +461,12 @@ static const pc_kbdc_interface pc_kbdc_intf_5150 =
DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER, ibm5160_mb_device, keyboard_data_w)
};
static const pc_kbdc_interface pc_kbdc_intf_ec1841 =
{
DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER, ec1841_mb_device, keyboard_clock_w),
DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER, ibm5160_mb_device, keyboard_data_w)
};
/**********************************************************
*
* NMI handling
@ -890,7 +909,7 @@ static MACHINE_CONFIG_FRAGMENT( ec1841_mb_config )
MCFG_FRAGMENT_ADD(ibm5160_mb_config)
MCFG_DEVICE_REMOVE("pc_kbdc")
MCFG_PC_KBDC_ADD("pc_kbdc", pc_kbdc_intf_5150)
MCFG_PC_KBDC_ADD("pc_kbdc", pc_kbdc_intf_ec1841)
MACHINE_CONFIG_END