static int cr589_exec_command( SCSIInstance *scsiInstance, UINT8 *statusCode )
{
UINT8 *command;
int commandLength;
SCSICr589 *our_this = (SCSICr589 *)SCSIThis( &SCSIClassCr589, scsiInstance );
SCSIGetCommand( scsiInstance, &command, &commandLength );
switch( command[ 0 ] )
{
case 0x3b: // WRITE BUFFER
our_this->bufferOffset = ( command[ 3 ] << 16 ) | ( command[ 4 ] << 8 ) | command[ 5 ];
SCSISetPhase( scsiInstance, SCSI_PHASE_DATAOUT );
return ( command[ 6 ] << 16 ) | ( command[ 7 ] << 8 ) | command[ 8 ];
case 0x3c: // READ BUFFER
our_this->bufferOffset = ( command[ 3 ] << 16 ) | ( command[ 4 ] << 8 ) | command[ 5 ];
SCSISetPhase( scsiInstance, SCSI_PHASE_DATAIN );
return ( command[ 6 ] << 16 ) | ( command[ 7 ] << 8 ) | command[ 8 ];
case 0xcc: // FIRMWARE DOWNLOAD ENABLE
SCSISetPhase( scsiInstance, SCSI_PHASE_DATAOUT );
return SCSILengthFromUINT16( &command[7] );
default:
return SCSIBase( &SCSIClassCr589, SCSIOP_EXEC_COMMAND, scsiInstance, 0, NULL );
}
}
void scsi_cr589_device::ExecCommand( int *transferLength )
{
switch( command[ 0 ] )
{
case 0x3b: // WRITE BUFFER
bufferOffset = ( command[ 3 ] << 16 ) | ( command[ 4 ] << 8 ) | command[ 5 ];
SetPhase( SCSI_PHASE_DATAOUT );
*transferLength = ( command[ 6 ] << 16 ) | ( command[ 7 ] << 8 ) | command[ 8 ];
break;
case 0x3c: // READ BUFFER
bufferOffset = ( command[ 3 ] << 16 ) | ( command[ 4 ] << 8 ) | command[ 5 ];
SetPhase( SCSI_PHASE_DATAIN );
*transferLength = ( command[ 6 ] << 16 ) | ( command[ 7 ] << 8 ) | command[ 8 ];
break;
case 0xcc: // FIRMWARE DOWNLOAD ENABLE
SetPhase( SCSI_PHASE_DATAOUT );
*transferLength = SCSILengthFromUINT16( &command[7] );
break;
default:
scsicd_device::ExecCommand( transferLength );
}
}
