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mc6854.cpp: WIP Fixed old obvious cut and paste errors and started to fix transmit part, a lot more needs to be fixed though

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This commit is contained in:
Joakim Larsson Edstrom 2020-01-30 11:05:31 +01:00
parent ba65fa40a1
commit d2ad10d588
1 changed files with 4 additions and 4 deletions
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8
src/devices/machine/mc6854.cpp
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@ -544,7 +544,7 @@ void mc6854_device::rfifo_terminate( )
{
if ( m_rfifo[ i ] & 0x100 )
{
m_tfifo[ i ] |= 0x200;
m_rfifo[ i ] |= 0x200;
break;
}
@ -675,7 +675,7 @@ void mc6854_device::update_sr2( )
m_sr2 |= RDA2;
if ( ! (m_rfifo[ FIFO_SIZE - 1 ] & 0x100) )
m_sr2 &= ~RDA2;
else if ( TWOBYTES && ! (m_tfifo[ FIFO_SIZE - 2 ] & 0x100) )
else if ( TWOBYTES && ! (m_rfifo[ FIFO_SIZE - 2 ] & 0x100) )
m_sr2 &= ~RDA2;
/* update AP */
@ -747,7 +747,7 @@ uint8_t mc6854_device::read(offs_t offset)
switch ( offset )
{
case 0: /* status register 1 */
update_sr1( );
//update_sr1( );
LOG( "%f %s mc6854_r: get SR1=$%02X (rda=%i,s2rq=%i,fd=%i,cts=%i,tu=%i,tdra=%i,irq=%i)\n",
machine().time().as_double(), machine().describe_context(), m_sr1,
( m_sr1 & RDA) ? 1 : 0, ( m_sr1 & S2RQ) ? 1 : 0,
@ -757,7 +757,7 @@ uint8_t mc6854_device::read(offs_t offset)
return m_sr1;
case 1: /* status register 2 */
update_sr2( );
//update_sr2( );
LOG( "%f %s mc6854_r: get SR2=$%02X (ap=%i,fv=%i,ridle=%i,rabt=%i,err=%i,dcd=%i,ovrn=%i,rda2=%i)\n",
machine().time().as_double(), machine().describe_context(), m_sr2,
( m_sr2 & AP ) ? 1 : 0, ( m_sr2 & FV ) ? 1 : 0,