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ti99: Add EOP handling to SCSI card.

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This commit is contained in:
Michael Zapf 2021-12-04 14:53:09 +01:00
parent 1fd82c9464
commit 8cc79f95ca
2 changed files with 9 additions and 1 deletions
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7
src/devices/bus/ti99/peb/scsicard.cpp
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@ -362,6 +362,11 @@ WRITE_LINE_MEMBER( whtech_scsi_card_device::irq_w )
operate_ready_line();
}
void whtech_scsi_card_device::signal_scsi_eop(int state)
{
m_controller->eop_w(state);
}
void whtech_scsi_card_device::device_add_mconfig(machine_config &config)
{
// RAM circuit
@ -625,8 +630,8 @@ void whtscsi_pld_device::cruwrite(offs_t offset, uint8_t data)
m_dma_lock = (data != 0);
break;
case 3: // SCSI EOP
// signal_scsi_eop(data != 0);
LOGMASKED(LOG_CRU, "SCSI EOP %s\n", (data!=0)? "on" : "off");
m_board->signal_scsi_eop((data != 0)? ASSERT_LINE : CLEAR_LINE);
break;
case 4:
LOGMASKED(LOG_CRU, "Word transfer %s\n", (data!=0)? "on" : "off");

3
src/devices/bus/ti99/peb/scsicard.h
View File

@ -83,6 +83,9 @@ private:
// Determine the state of the READY line
void operate_ready_line();
// Send the EOP signal to the controller
void signal_scsi_eop(int state);
};
class whtscsi_pld_device : public device_t