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Yuji Yokoo

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mruby in the 8-bit world: mruby VM for Zilog Z80RubyKaigi 20262026-04-22
Runs mruby bytecode on a Z80 by implementing a custom VM (repo: codeberg/yugigo/mruby-z) and boots directly from a Sega Master System cartridge. Uses…
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Ruby in the 8 Bit World - A Small mruby VM for the Zilog Z80RubyConf TH 20262026-01-31
A tiny mruby VM called mrubyz runs compiled mruby bytecode as a ROM on Zilog Z80 hardware at 3.5 MHz with 8 KB RAM and 16 KB VRAM, implemented as a Sega Master…
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Megaruby - mruby/c on Sega Mega DriveRubyConf AU 20232023-02-16
Ruby bytecode mrb runs on a Sega Mega Drive by embedding mruby/c into an SGDK C binary with a custom main entry, producing a ROM that boots from an SD…
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Megaruby - mruby/c on Sega Mega DriveRubyConf TH 20222022-12-09
A presentation app and two demo games run as Sega Mega Drive ROMs, with core game logic written in mruby/c and platform glue, main entry and resource handling…
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"Developing your Dreamcast games with mruby"RubyConf Au 20202020-02-20
Shows a working mruby runtime on a Sega Dreamcast, cross‑compiled with CallistiOS toolchain and packaged into a bootable image; Ruby code is compiled to mruby…
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