ii-vision

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kris 1b54c9c864 Video() is now aware of target frame rate, and will continue to emit

opcodes until the cycle budget for the frame is exhausted.

Output stream is also now aware of TCP framing, and schedules an ACK
opcode every 2048 output bytes to instruct the client to perform
TCP ACK and buffer management.

Fixes several serious bugs in RLE encoding, including:

- we were emitting the RLE opcode with the next content byte after the
  run completed!
- we were looking at the wrong field for the start offset!
- handle the case where the entire page is a single run
- stop trying to allow accumulating error when RLE -- this does not
  respect the Apple II colour encoding, i.e. may introduce colour
  fringing.
- also because of this we're unlikely to actually be able to find
  many runs because odd and even columns are encoded differently.  In
  a followup we should start encoding odd and even columns separately

Optimize after profiling -- encoder is now about 2x faster

Add tests.

2019-02-23 23:52:25 +00:00

ethernet/ethernet

WIP: modified version of echo server that reads in page-sized chunks

2019-01-03 23:25:58 +00:00

frame_sequence.py

Extract out input video decoding into separate module.

2019-02-23 23:32:07 +00:00

main.py

Extract out input video decoding into separate module.

2019-02-23 23:32:07 +00:00

memory_map.py

Implement a much more efficient mechanism for mapping an array between