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(MESS) ibm5160: Keyboard WIP. (nw)

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This commit is contained in:
Curt Coder 2013-06-30 11:00:58 +00:00
parent 60265e7379
commit b09982c7d1
2 changed files with 28 additions and 16 deletions
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42
src/mess/machine/kb_pcxt83.c
View File

@ -281,6 +281,8 @@ void ibm_pc_xt_83_keyboard_device::device_start()
// state saving
save_item(NAME(m_p1));
save_item(NAME(m_p2));
save_item(NAME(m_md));
save_item(NAME(m_sense));
}
@ -336,6 +338,11 @@ WRITE8_MEMBER( ibm_pc_xt_83_keyboard_device::bus_w )
m_pc_kbdc->data_write_from_kb(BIT(data, 5));
m_pc_kbdc->clock_write_from_kb(BIT(data, 6));
if (BIT(data, 7))
{
m_md = (m_p2 & 0xf0) << 4 | m_p1;
}
}
@ -377,7 +384,7 @@ WRITE8_MEMBER( ibm_pc_xt_83_keyboard_device::p2_w )
0 SELECT 2
1 SELECT 1
2 SELECT 0
3 SA CLOSED, T1
3 SA CLOSED
4 MD08
5 MD09
6 MD10
@ -385,6 +392,11 @@ WRITE8_MEMBER( ibm_pc_xt_83_keyboard_device::p2_w )
*/
if (!BIT(m_p2, 3) && BIT(data, 3))
{
m_sense = data & 0x07;
}
m_p2 = data;
}
@ -417,20 +429,18 @@ int ibm_pc_xt_83_keyboard_device::sa_closed()
{
UINT8 data = 0xff;
logerror("md %03x sense %01x\n", m_p2 << 4 | m_p1, m_p2&0x07);
if (BIT(m_md, 0)) data &= m_md00->read();
if (BIT(m_md, 1)) data &= m_md01->read();
if (BIT(m_md, 2)) data &= m_md02->read();
if (BIT(m_md, 3)) data &= m_md03->read();
if (BIT(m_md, 4)) data &= m_md04->read();
if (BIT(m_md, 5)) data &= m_md05->read();
if (BIT(m_md, 6)) data &= m_md06->read();
if (BIT(m_md, 7)) data &= m_md07->read();
if (BIT(m_md, 8)) data &= m_md08->read();
if (BIT(m_md, 9)) data &= m_md09->read();
if (BIT(m_md, 10)) data &= m_md10->read();
if (BIT(m_md, 11)) data &= m_md11->read();
if (BIT(m_p1, 0)) data &= m_md00->read();
if (BIT(m_p1, 1)) data &= m_md01->read();
if (BIT(m_p1, 2)) data &= m_md02->read();
if (BIT(m_p1, 3)) data &= m_md03->read();
if (BIT(m_p1, 4)) data &= m_md04->read();
if (BIT(m_p1, 5)) data &= m_md05->read();
if (BIT(m_p1, 6)) data &= m_md06->read();
if (BIT(m_p1, 7)) data &= m_md07->read();
if (BIT(m_p2, 4)) data &= m_md08->read();
if (BIT(m_p2, 5)) data &= m_md09->read();
if (BIT(m_p2, 6)) data &= m_md10->read();
if (BIT(m_p2, 7)) data &= m_md11->read();
return BIT(m_p2, 3) && BIT(data, m_p2 & 0x07);
return BIT(data, m_sense);
}

2
src/mess/machine/kb_pcxt83.h
View File

@ -71,6 +71,8 @@ private:
UINT8 m_p1;
UINT8 m_p2;
UINT16 m_md;
int m_sense;
};