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* Integrate wrap bits into grey code for FIFO.Julian Blake Kongslie2022-03-281-5/+8
* Update PLAN.Julian Blake Kongslie2022-03-271-13/+10
* 12 PDP-8s! :-)Julian Blake Kongslie2022-03-271-1/+1
* A more-fair memory arbiter that actually works.Julian Blake Kongslie2022-03-271-31/+34
* Add RX/TX/RTS/CTS pin assignments for future RS232 work.Julian Blake Kongslie2022-03-271-0/+5
* Use the DF and IF switches as a selector for which PDP-8 owns the panel.Julian Blake Kongslie2022-03-271-89/+92
* Add a clock output pin for debugging the PLL.Julian Blake Kongslie2022-03-272-0/+5
* Attempt to make somewhat less error-prone downloads.Julian Blake Kongslie2022-03-272-6/+5
* Reduce internal clock speed to 30MHz.Julian Blake Kongslie2022-03-272-3/+3
* Attempt to download for 16 PDP-8s.Julian Blake Kongslie2022-03-271-8/+16
* Don't use SystemVerilog parametric types because Altera doesn't support them.Julian Blake Kongslie2022-03-271-9/+9
* First pass at RS232 tx/rx modules.Julian Blake Kongslie2022-03-271-0/+131
* Add basic clock-domain-crossing FIFO.Julian Blake Kongslie2022-03-261-0/+68
* Run ~*EIGHT GODDAMN PDP-8s IN PARALLEL*~Julian Blake Kongslie2022-03-203-48/+127
* Cleanup of PDP-8 core to support arbitrated memory protocol.Julian Blake Kongslie2022-03-201-190/+109
* Support loading RIMs and multi-word lines via the UART loader.Julian Blake Kongslie2022-03-202-12/+24
* Add a few useful memory images.Julian Blake Kongslie2022-03-205-4141/+0
* Temporary change to PDP-8 internal memory to match controller protocolJulian Blake Kongslie2022-03-201-57/+86
* Clean up p8bin2uart and support dumping multiple words per line.Julian Blake Kongslie2022-03-181-27/+73
* Redraw the diagram in PLAN to make it a little prettier.Julian Blake Kongslie2022-03-181-23/+46
* Minor paranoia about ensuring that we're in the correct half_stateJulian Blake Kongslie2022-03-181-0/+1
* Ignore colons on inputs; use them to separate words in output.Julian Blake Kongslie2022-03-182-7/+19
* Trivial change to make it a little easier to understand the mem arbiter.Julian Blake Kongslie2022-03-181-1/+1
* Add a few notes.Julian Blake Kongslie2022-03-131-0/+12
* Import p8bin2* tools into repo.Julian Blake Kongslie2022-03-132-0/+334
* Change command parser to support bulk download script.Julian Blake Kongslie2022-03-132-23/+118
* Add memory arbiter and broadcast in between command UART and DRAM.Julian Blake Kongslie2022-03-133-17/+203
* Fix DRAM timings to avoid back-to-back transactions.Julian Blake Kongslie2022-03-131-3/+11
* Change FIFO size for UARTs to 1024 bytes in each direction.Julian Blake Kongslie2022-03-132-4/+4
* Print a newline after memory read result prints.Julian Blake Kongslie2022-03-131-26/+32
* Adding packed keyword to structs and tweaking tag_t slightly.Julian Blake Kongslie2022-03-131-7/+7
* Reformat PLAN to be a little prettier.Julian Blake Kongslie2022-03-131-17/+24
* Switch back to focal69 instead of broken hello.pal.Julian Blake Kongslie2022-03-011-2/+1
* Don't use the bottom data bit as the ready signal :-DJulian Blake Kongslie2022-02-281-1/+1
* Initial commit.Julian Blake Kongslie2022-02-2718-0/+6361