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didn't know about delegate.isnull() when I wrote this. nwm

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This commit is contained in:
smf- 2011-05-16 16:12:06 +00:00
parent ddea100d0f
commit f0d5461a45
2 changed files with 7 additions and 18 deletions
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23
src/emu/cpu/psx/dma.c
View File

@ -29,13 +29,6 @@ const device_type PSX_DMA = &device_creator<psxdma_device>;
psxdma_device::psxdma_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, PSX_DMA, "PSX DMA", tag, owner, clock)
{
for( int index = 0; index < 7; index++ )
{
psx_dma_channel *dma = &channel[ index ];
dma->read_set = false;
dma->write_set = false;
}
}
void psxdma_device::device_reset()
@ -205,13 +198,11 @@ void psxdma_device::dma_finished_callback(void *ptr, int param)
void psxdma_device::install_read_handler( int index, psx_dma_read_delegate p_fn_dma_read )
{
channel[ index ].fn_read = p_fn_dma_read;
channel[ index ].read_set = true;
}
void psxdma_device::install_write_handler( int index, psx_dma_read_delegate p_fn_dma_write )
{
channel[ index ].fn_write = p_fn_dma_write;
channel[ index ].write_set = true;
}
WRITE32_MEMBER( psxdma_device::write )
@ -260,14 +251,14 @@ WRITE32_MEMBER( psxdma_device::write )
}
if( dma->n_channelcontrol == 0x01000000 &&
dma->read_set )
!dma->fn_read.isnull() )
{
verboselog( machine(), 1, "dma %d read block %08x %08x\n", index, n_address, n_size );
dma->fn_read( n_address, n_size );
dma_finished( index );
}
else if (dma->n_channelcontrol == 0x11000000 && // CD DMA
dma->read_set )
!dma->fn_read.isnull() )
{
verboselog( machine(), 1, "dma %d read block %08x %08x\n", index, n_address, n_size );
@ -280,7 +271,7 @@ WRITE32_MEMBER( psxdma_device::write )
dma_finished( index );
}
else if( dma->n_channelcontrol == 0x01000200 &&
dma->read_set )
!dma->fn_read.isnull() )
{
verboselog( machine(), 1, "dma %d read block %08x %08x\n", index, n_address, n_size );
dma->fn_read( n_address, n_size );
@ -294,14 +285,14 @@ WRITE32_MEMBER( psxdma_device::write )
}
}
else if( dma->n_channelcontrol == 0x01000201 &&
dma->write_set )
!dma->fn_write.isnull() )
{
verboselog( machine(), 1, "dma %d write block %08x %08x\n", index, n_address, n_size );
dma->fn_write( n_address, n_size );
dma_finished( index );
}
else if( dma->n_channelcontrol == 0x11050100 &&
dma->write_set )
!dma->fn_write.isnull() )
{
/* todo: check this is a write not a read... */
verboselog( machine(), 1, "dma %d write block %08x %08x\n", index, n_address, n_size );
@ -309,7 +300,7 @@ WRITE32_MEMBER( psxdma_device::write )
dma_finished( index );
}
else if( dma->n_channelcontrol == 0x11150100 &&
dma->write_set )
!dma->fn_write.isnull() )
{
/* todo: check this is a write not a read... */
verboselog( machine(), 1, "dma %d write block %08x %08x\n", index, n_address, n_size );
@ -318,7 +309,7 @@ WRITE32_MEMBER( psxdma_device::write )
}
else if( dma->n_channelcontrol == 0x01000401 &&
index == 2 &&
dma->write_set )
!dma->fn_write.isnull() )
{
verboselog( machine(), 1, "dma %d write linked list %08x\n",
index, dma->n_base );

2
src/emu/cpu/psx/dma.h
View File

@ -25,9 +25,7 @@ struct _psx_dma_channel
UINT32 n_channelcontrol;
emu_timer *timer;
psx_dma_read_delegate fn_read;
bool read_set;
psx_dma_write_delegate fn_write;
bool write_set;
UINT32 n_ticks;
UINT32 b_running;
};