From 89f7058c97d690c27cad9a67c7e3aeea67d2b2be Mon Sep 17 00:00:00 2001
From: Sacha Chua <sacha@sachachua.com>
Date: Mon, 30 Nov 2020 13:56:19 -0500
Subject: Add rough dump

---
 2020/info/27.md | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

(limited to '2020/info/27.md')

diff --git a/2020/info/27.md b/2020/info/27.md
index 87df7140..f97d6b4c 100644
--- a/2020/info/27.md
+++ b/2020/info/27.md
@@ -9,3 +9,64 @@ workings of a [CHIP-8](https://en.wikipedia.org/wiki/CHIP-8) emulator capable of
 [1]: <https://depp.brause.cc/talks/chicken-saar/>
 [2]: <https://depp.brause.cc/talks/openchaos-2019-11/>
 
+<!-- from the pad --->
+
+-   Actual start and end time (EST): Start 2020-11-29T13.23.01; End: 2020-11-29T13.33.00
+-   Alternative stream for extended talk: <http://live.emacsconf.org/alt.html> or <http://live0.emacsconf.org/alt.webm>
+
+
+# Questions
+
+
+## Q5: Do you think would be possible to write some compiler in order to write chip-8 games on elisp?
+
+
+### It could be possible if you restrict yourself to some very limited elisp subset or lispy assembler. For the latter, here's some projects to draw inspiration from:
+
+-   <https://ahefner.livejournal.com/20528.html>
+
+-   <http://www.dustmop.io/blog/2019/09/10/what-remains-technical-breakdown/> -> <http://www.pawfal.org/dave/blog/2016/05/a-6502-lisp-compiler-sprite-animation-and-the-nesfamicom/>
+
+-   <https://en.wikipedia.org/wiki/Game_Oriented_Assembly_Lisp> -> <https://blog.jakspeedruns.com/opengoal-project-update-september-2020/>
+
+
+## Q4:  What's the biggest perf bottleneck for your emulator? does it spend time executing your lisp or something else in the Emacs infrastructure (eg redisplay)?
+
+
+### Redisplay was super slow, it's like 3-4x as slow as executing the CPU cycles
+
+-   Okay that's the reason why Gccemacs does not help :)
+
+
+## Q3: do you think that you make our tiny console based in the chip ATMega like Arduboy?
+
+
+### I'm sorry, I didn't quite understand the question, could you please clarify it? I'm not exactly a hardware person, might have to defer it to someone else.
+
+
+### I've looked at Arduboy and I believe the DEFCON CHIP-8 Badge is the closest to this: <https://hackaday.io/project/19121-andxor-dc25-badge/log/53223-chip8-schip-game-emulation>
+
+
+## Q2: Any tutorial to start? I want to make my game now, no, for chip8
+
+
+### I'm not aware of tutorials, but there's CHIP-8 resources online. You can of course study the assembly of existing games, that's how I figured out the tricks that broke my emulator :>
+
+
+## Q1: How did you manage to present a game engine without showing any game? :-) Show us!!
+
+
+### See the alt stream, it has several demos not shown due to time constraints
+
+
+# Notes
+
+
+## Slides available at <https://depp.brause.cc/talks/emacsconf-2020/>
+
+
+## Repository available at <https://depp.brause.cc/chip8.el/>
+
+
+## More on the alt-stream: <https://live.emacsconf.org/alt.html>
+
-- 
cgit v1.2.3