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asc88: Corrections and notes (nw)

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This commit is contained in:
AJR 2019-05-22 21:35:58 -04:00
parent 6f91e0a2f4
commit bbf14b56fe
1 changed files with 7 additions and 3 deletions
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10
src/devices/bus/isa/asc88.cpp
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@ -5,6 +5,10 @@
ASC-88 SCSI Adapter
© 1985 Advanced Storage Concepts, Inc.
This is a rather basic 8-bit SCSI host adapter on a quarter-size card.
IRQ and DMA channels are software-selectable. There is a 2K HM6116P-2
SRAM on board, but not all of it seems to be addressable.
***************************************************************************/
#include "emu.h"
@ -103,11 +107,11 @@ void asc88_device::control_w(u8 data)
if (m_irq)
{
if (BIT(m_control, 3))
if (BIT(changing_bits, 3))
m_isa->irq2_w(BIT(data, 3));
if (BIT(m_control, 4))
if (BIT(changing_bits, 4))
m_isa->irq3_w(BIT(data, 4));
if (BIT(m_control, 5))
if (BIT(changing_bits, 5))
m_isa->irq5_w(BIT(data, 5));
}