1) Start MAME
2) Select the PDP-1 driver
3) Press Scroll-Lock
4) Press Tab
5) File Manager > punchtape1 (ptap1)
6) Select the spacewar.rim file
7) Exit out of the tab menu with Tab or Esc
8) Press Ctrl+Enter to load the tape
1) Click on "devices" tab and go to tab "file chooser"
2) Change the device to "punchtape1"
3) Select the spacewar.rim file (the PDP-1 will start to play)
4) Now just press the Ctrl+Enter to launch the tape.
"A user interface is like a joke. If you have to explain it, it's not that good."