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authorJulian Blake Kongslie2022-03-13 18:04:04 -0700
committerJulian Blake Kongslie2022-03-13 18:04:04 -0700
commit0c57d85034fde8d2779a7462496ee821e1a6f44d (patch)
tree384b424db9b710b4bb4ece57190bd398a00bc409
parentImport p8bin2* tools into repo. (diff)
downloadmultipdp8-0c57d85034fde8d2779a7462496ee821e1a6f44d.tar.xz
Add a few notes.
-rw-r--r--PLAN12
1 files changed, 12 insertions, 0 deletions
diff --git a/PLAN b/PLAN
index cc8b5d6..a4e4691 100644
--- a/PLAN
+++ b/PLAN
@@ -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
31For 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.