Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 00:39:36 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

i8255: in read_pc(), also return data from output latch

Browse Source
This commit is contained in:
Sergey Svishchev 2017-01-08 23:26:26 +03:00
parent 1765c5d9b4
commit 9143577774
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/devices/machine/i8255.cpp
View File

@ -473,6 +473,11 @@ uint8_t i8255_device::read_pc()
{
// read data from port
data |= m_in_pc_cb(0) & mask;
if (port_c_upper_mode() == MODE_OUTPUT)
{
// read data from output latch
data |= m_output[PORT_C] & mask;
}
}
return data;