==== interesting hardware ====
    * GB Boy color

==== playing retro games with a portable device ====

^device         ^pros/cons                                                                 ^
|Nintendo switch|runs linux, has MMU, is fast. But needs a payload via USB after each boot.|
|GPi case       |runs linux, has MMU, but is quite slow, not good enough for SNES games?   |
|Nintendo DS    |[[https://www.dslinux.org/|runs linux 2.6 kernels]], but needs RAM expansion over default 4MB. Low specs.|
|Sony PSP       |Has no MMU, [[https://psplinux.info/|PSPlinux]] exists. PSP has low hardware specs thou.|
|Sony PS Vita   |As os 2019 [[https://github.com/xerpi/linux_vita/commits/master|active development]][[https://github.com/xerpi/vita-linux-loader]], Vita has 512MB RAM|
|[[https://wiki.radxa.com/Rockpi4|Rockpi4]]|more free, 6 core, raspi4 |
|[[https://hackaday.com/2019/10/01/a-retro-gaming-console-for-the-new-generation/|ESPboy]] |to weak for emulation |
|[[https://emulation.gametechwiki.com/index.php/MiSTer|MiSTer]] |FPGA emulation [[https://www.racketboy.com/retro/mister-fpga-the-future-of-retro-game-emulation-and-preservation|introduction]] |
|[[https://mega65.org/|Mega65]] | Aimed at being easy to understand |
|[[https://steckschwein.de/|Steckschwein]] | Aimed at being easy to understand |
|[[https://gigatron.io/|Gigatron]]         | Aimed at being easy to understand |
==== RISC-V ====
  * FPGA (reprogrammable hardware) could be used.
    * [[https://www.crowdsupply.com/radiona/ulx3s|ULX3S]], FPGA ESP32, WLAN, 32mb RAM
      * This one looks actually really really nice! Has USB, Wifi, Video out
    * AndeShape FPGA boards, likely ~$1000
    * iCEBreaker FPGA Development Board
      * Lattice iCE40UP5k FPGA, capable of hosting CPU soft cores such as picorv32, picosoc, and RISC-V
      * [[https://www.crowdsupply.com/1bitsquared/icebreaker-fpga|starting to ship for $69 on 2020-4-23]]
      * the board has no NIC
    * https://www.crowdsupply.com/ has some interesting projects
  * KVM-guest on x86 can emulate RISC-V. [[https://fedoraproject.org/wiki/Architectures/RISC-V/Installing|Details from fedoraproject.org]]
  * HiFive Unleashed: to it's expensive.. currently at $999. I was looking for raspi scale performance wise.
  * [[https://www.heise.de/news/SiFive-kuendigt-PC-mit-offener-RISC-V-Technik-an-4902194.html|202009, heise]]
  * 2022 Dec: risc-v boards shown in [[https://www.youtube.com/watch?v=Lb_6W_W6vCw|oreboot auf RISC-V - Vergleichende Analyse zweier Implementierungen]]

==== East German Computers ====
  * [[https://media.ccc.de/v/vcfb19_-_128_-_de_-_201910131530_-_computer_in_der_ddr_-_rene_meyer|Computer in der DDR, presentation]]

==== Ideas for a retro computer ====
Used Amiga 1200 or Amiga 600 are quite expensive.. how about making a nice case for retro computer emulation?

  * must have:
    * provide space for a Raspi4 (ideally: a bit more space, for later upgrades)
    * have a keyboard
    * space for nvram or SSD, connected to the Raspi
  * nice to have:
    * floppy drive, for Amiga disks
  * ideas:
    * THE64 maxi: C64 original size, usable keyboard. But seems no longer produced, goes for 180eur, more expensive than C64
    * original C64: I would destroy the case of a C64 then.. and I need a solution to connect the original keyboard to the Raspi. keyrah for 45eur can do that. But a keyboard with extra cursor keys would be nice.
    * random keyboard with big case: Raspi might fit in there
    * Amiga 1200 case: I would love that.. but where to get a keyboard. keyrah can also here do conversion to USB.