---
title: 自分の仮想機械を作る
tags:  #omotesandorb #rubykaigi2026  
author: [Saeki Mototsune](https://image.docswell.com/user/daily_mototsune)
site: [Docswell](https://www.docswell.com/)
thumbnail: https://bcdn.docswell.com/page/4JQYD55L7P.jpg?width=480
description: @Omotesando.rb #121 MEDLEY × mov RubyKaigi事後勉強会との共同開催
published: May 14, 26
canonical: https://image.docswell.com/s/daily_mototsune/5R8G4N-2026-05-14-201403
---
# Page. 1

![Page Image](https://bcdn.docswell.com/page/4JQYD55L7P.jpg)

自分の仮想機械を作る
@Omotesando.rb #121
MEDLEY × mov RubyKaigi事後勉強会との共同開催


# Page. 2

![Page Image](https://bcdn.docswell.com/page/K74WZ995E1.jpg)

もとつねの日常
@daily_mototsune
Ruby on Railsを中心に扱っているフリーランスエンジニア
ドメインモデリングからAWSでの運用、スクラム運営やチームビルディ
ングなどなど楽しくやらせてもらってます
普段はOmotesando.rbやGinza.rbによくいます
🍷♨✈🏎


# Page. 3

![Page Image](https://bcdn.docswell.com/page/LJ1YRKK2EG.jpg)

RubyKaigi楽しかったですね


# Page. 4

![Page Image](https://bcdn.docswell.com/page/GJWG1DD272.jpg)

お気に入りのセッションは
なんでしたか？


# Page. 5

![Page Image](https://bcdn.docswell.com/page/4EZLPGG473.jpg)

私はVM話が好物でした


# Page. 6

![Page Image](https://bcdn.docswell.com/page/Y76WMYYG7V.jpg)

and more!


# Page. 7

![Page Image](https://bcdn.docswell.com/page/G75MZGGX74.jpg)

mruby in the 8-bit world:
mruby VM for Zilog Z80
「Build your own VM」


# Page. 8

![Page Image](https://bcdn.docswell.com/page/9J29RYYQER.jpg)

は？


# Page. 9

![Page Image](https://bcdn.docswell.com/page/DEY4DGGYJM.jpg)

作るかー


# Page. 10

![Page Image](https://bcdn.docswell.com/page/VJNY6GGR78.jpg)

そもそもVMとは
-
Virtual Machine（仮想機械）
ユーザーが書いたコードを元にバイトコードが生成され、VMがバイトコードを
読んで実行する
Rubyでは1.9からYARVというスタックVMが採用されている
それ以前はtree-walking interpreter


# Page. 11

![Page Image](https://bcdn.docswell.com/page/YE9PLWWZJ3.jpg)

バイトコードを見てみる


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![Page Image](https://bcdn.docswell.com/page/GE8DXNRYED.jpg)

1


# Page. 13

![Page Image](https://bcdn.docswell.com/page/LELM8PK97R.jpg)

2
1


# Page. 14

![Page Image](https://bcdn.docswell.com/page/4JMY642VJW.jpg)

3
2
1


# Page. 15

![Page Image](https://bcdn.docswell.com/page/PJR9PWMW79.jpg)

2
1
.*(
3
)


# Page. 16

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6
1


# Page. 17

![Page Image](https://bcdn.docswell.com/page/3EK9YDQ5ED.jpg)

6
1


# Page. 18

![Page Image](https://bcdn.docswell.com/page/L73W9RP175.jpg)

1
.+(
6
)


# Page. 19

![Page Image](https://bcdn.docswell.com/page/87DKGYLKJG.jpg)

7


# Page. 20

![Page Image](https://bcdn.docswell.com/page/VJPK3623E8.jpg)

なんかいけそうな気がしてきた


# Page. 21

![Page Image](https://bcdn.docswell.com/page/2EVV43DNEQ.jpg)

RubyVM::INSTRUCTION_NAMES
["nop",
"getlocal",
"setlocal",
"getblockparam",
"setblockparam",
"getblockparamproxy",
"getspecial",
"setspecial",
"getinstancevariable",
"setinstancevariable",
"getclassvariable",
"setclassvariable",
"opt_getconstant_path",
"getconstant",
"setconstant",
"getglobal",
"setglobal",
"putnil",
"putself",
"putobject",
"putspecialobject",
"putstring",
"putchilledstring",
"concatstrings",
"anytostring",
"toregexp",
"intern",
"newarray",
"pushtoarraykwsplat",
"duparray",
"duphash",
"expandarray",
"concatarray",
"concattoarray",
"pushtoarray",
"splatarray",
"splatkw",
"newhash",
"newrange",
"pop",
"dup",
"dupn",
"swap",
"opt_reverse",
"topn",
"setn",
"adjuststack",
"defined",
"definedivar",
"checkmatch",
"checkkeyword",
"checktype",
"defineclass",
"definemethod",
"definesmethod",
"send",
"sendforward",
"opt_send_without_block",
"opt_new",
"objtostring",
"opt_ary_freeze",
"opt_hash_freeze",
"opt_str_freeze",
"opt_nil_p",
"opt_str_uminus",
"opt_duparray_send",
"opt_newarray_send",
"invokesuper",
"invokesuperforward",
"invokeblock",
"leave",
"throw",
"jump",
"branchif",
"branchunless",
"branchnil",
"once",
"opt_case_dispatch",
"opt_plus",
"opt_minus",
"opt_mult",
"opt_div",
"opt_mod",
"opt_eq",
"opt_neq",
"opt_lt",
"opt_le",
"opt_gt",
"opt_ge",
"opt_ltlt",
"opt_and",
"opt_or",
"opt_aref",


# Page. 22

![Page Image](https://bcdn.docswell.com/page/57GL13Y5EL.jpg)

なんかいけなさそうな
気がしてきた


# Page. 23

![Page Image](https://bcdn.docswell.com/page/4EQYD5MLJP.jpg)

RubyVM::INSTRUCTION_NAMES
["nop",
"getlocal",
"setlocal",
"getblockparam",
"setblockparam",
"getblockparamproxy",
"getspecial",
"setspecial",
"getinstancevariable",
"setinstancevariable",
"getclassvariable",
"setclassvariable",
"opt_getconstant_path",
"getconstant",
"setconstant",
"getglobal",
"setglobal",
"putnil",
"putself",
"putobject",
"putspecialobject",
"putstring",
"putchilledstring",
"concatstrings",
"anytostring",
"toregexp",
"intern",
"newarray",
"pushtoarraykwsplat",
"duparray",
"duphash",
"expandarray",
"concatarray",
"concattoarray",
"pushtoarray",
"splatarray",
"splatkw",
"newhash",
"newrange",
"pop",
"dup",
"dupn",
"swap",
"opt_reverse",
"topn",
"setn",
"adjuststack",
"defined",
"definedivar",
"checkmatch",
"checkkeyword",
"checktype",
"defineclass",
"definemethod",
"definesmethod",
"send",
"sendforward",
"opt_send_without_block",
"opt_new",
"objtostring",
"opt_ary_freeze",
"opt_hash_freeze",
"opt_str_freeze",
"opt_nil_p",
"opt_str_uminus",
"opt_duparray_send",
"opt_newarray_send",
"invokesuper",
"invokesuperforward",
"invokeblock",
"leave",
"throw",
"jump",
"branchif",
"branchunless",
"branchnil",
"once",
"opt_case_dispatch",
"opt_plus",
"opt_minus",
"opt_mult",
"opt_div",
"opt_mod",
"opt_eq",
"opt_neq",
"opt_lt",
"opt_le",
"opt_gt",
"opt_ge",
"opt_ltlt",
"opt_and",
"opt_or",
"opt_aref",


# Page. 24

![Page Image](https://bcdn.docswell.com/page/KJ4WZ9V571.jpg)

とりあえず小さな一歩を


# Page. 25

![Page Image](https://bcdn.docswell.com/page/LE1YRK327G.jpg)



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![Page Image](https://bcdn.docswell.com/page/GEWG1DP2J2.jpg)



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# Page. 28

![Page Image](https://bcdn.docswell.com/page/YJ6WMYQGJV.jpg)

「Build your own VM」


# Page. 29

![Page Image](https://bcdn.docswell.com/page/GJ5MZGRXJ4.jpg)

https://blog.youchan-apps.net/2026-04-17