diff options
| author | Julian Blake Kongslie | 2022-03-13 18:04:04 -0700 |
|---|---|---|
| committer | Julian Blake Kongslie | 2022-03-13 18:04:04 -0700 |
| commit | 0c57d85034fde8d2779a7462496ee821e1a6f44d (patch) | |
| tree | 384b424db9b710b4bb4ece57190bd398a00bc409 | |
| parent | Import p8bin2* tools into repo. (diff) | |
| download | multipdp8-0c57d85034fde8d2779a7462496ee821e1a6f44d.tar.xz | |
Add a few notes.
Diffstat (limited to '')
| -rw-r--r-- | PLAN | 12 |
1 files changed, 12 insertions, 0 deletions
| @@ -25,3 +25,15 @@ | |||
| 25 | For inputs coming from a PDP-8 as opposed to the command parser, add the appropriate prefix to the memory address | 25 | For inputs coming from a PDP-8 as opposed to the command parser, add the appropriate prefix to the memory address |
| 26 | Broadcaster: Removes clog2(1 + number of PDP-8s) tag bits to determine which channel to send to | 26 | Broadcaster: Removes clog2(1 + number of PDP-8s) tag bits to determine which channel to send to |
| 27 | For outputs going to a PDP-8 as opposed to the result printer, strip excess address bits | 27 | For outputs going to a PDP-8 as opposed to the result printer, strip excess address bits |
| 28 | |||
| 29 | |||
| 30 | |||
| 31 | For the front panel: | ||
| 32 | |||
| 33 | We only have enough pins for a single front panel, so we need an arbiter to | ||
| 34 | control which PDP core is talking to the panel. | ||
| 35 | |||
| 36 | Maybe the command parser should have a command for controlling that arbiter? | ||
| 37 | |||
| 38 | Or we could repurpose some of the switches on the panel to control it? The | ||
| 39 | DF and IF switches are sort of an obvious choice here. | ||
