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author Dirk Best <mail@dirk-best.de>2022-09-15 13:16:06 +0200
committer Dirk Best <mail@dirk-best.de>2022-09-15 13:19:47 +0200
commit0fde33c2dd15e0d97dc40e5bfc21dca4937d18c8 (patch)
tree45cbd0cdababcb8d8bbd5cd772f259b5f44851b4 /src/devices/machine
parentb65fa9b666df1f168997f7ea8f18524937bf6600 (diff)
er1400: Fix loss of the first data bit on readback
Diffstat (limited to 'src/devices/machine')
-rw-r--r--src/devices/machine/er1400.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/machine/er1400.cpp b/src/devices/machine/er1400.cpp
index 695f22ac27a..f8ab77acaa4 100644
--- a/src/devices/machine/er1400.cpp
+++ b/src/devices/machine/er1400.cpp
@@ -304,7 +304,7 @@ TIMER_CALLBACK_MEMBER(er1400_device::propagate_data)
{
if (m_code_input == 5)
{
- m_data_output = BIT(m_data_register, 13);
+ m_data_output = BIT(m_data_register, 14);
LOG("Data output %d bit\n", m_data_output);
}
else
@@ -370,7 +370,7 @@ WRITE_LINE_MEMBER(er1400_device::clock_w)
break;
case 5: // shift data out
- m_data_register = (m_data_register & 0x1fff) << 1;
+ m_data_register = (m_data_register & 0x3fff) << 1;
m_data_propagation_timer->adjust(attotime::from_usec(20));
break;