Joyful assembly language - Assembly Language Tanka

Joyful Assembly Language

Kunio Miyamoto, Ph.D.

1

Assembly language tanka

Kunio Miyamoto, Ph.D.

2

About me

Copyright by Kunio Miyamoto 3

About me

It’s a Joke Copyright by Kunio Miyamoto 4

What is Tanka?

• Tanka is…

• Japanese Short Poem

• 5-7-5-7-7 Style

– Number is the letters of character in each part

• Includes “Kigo（季語）”

– “Kigo” is the season word

• Rule and style

5

In Wikipedia

• Tanka (短歌 "short poem") is a genre of

classical Japanese poetry and one of the

major genres of Japanese literature

• http://en.wikipedia.org/wiki/Tanka

Copyright by Kunio Miyamoto

Example

• 東海の小島の磯の白砂に

われ泣きぬれて

蟹（かに）とたはむる（石川啄木）

• On the white sand

Of the beach of a small island

In the Eastern Sea

I, my face streaked with tears,

Am playing with a crab(Takuboku Ishikawa)


Example






In the Eastern Sea




とうかいの

こじまのいその

しろすなに

われなきぬれて

かにとたはむる

Example






In the Eastern Sea




Remember

This Style

What is

assembly language tanka? • Assembler TANKA is…

• Machine Language Short Poem(!)

• 5-7-5-7-7 Style

• Includes “Kigo（季語）”

– “Kigo” is the season word

• Rhythmic

e.g.: Ends or starts same code in each part

• Executable(!)

10

Example

.section .text

.global main

.type main, @function

main:

push $0x43412054

push $0x53524946

mov %esp, %ecx

xor %ebx, %ebx

inc %ebx

mov %ebx, %eax

add %eax, %eax

add %eax, %eax

nop

mov %eax, %edx

add %edx, %edx

int $0x80

add %edx, %esp

ret


ONLY

14 Instructions!

Runs on Linux/x86

Style?

68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3 Copyright by Kunio Miyamoto

5bytes

5bytes

7bytes

7bytes

7bytes

Style?


Remember

This Style

Season Word?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

Season Word?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

“FIRST AC” Is the

Season Word

of “June”

Rhythm?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

Rhythm?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

Same value

Rhythm?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3 Same value

Rhythm?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

Refrain

Rhythm?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

Same value

Same value

Refrain

Rhythmic!

Comparing Style


Assembly Language Tanka

Comparing Style


(Traditional) Tanka Assembly Language Tanka

Comparing Style


(Traditional) Tanka Assembly Language Tanka

Same

Style!

Executable?


Executable?


Of Course!

BTW


BTW


BTW

It’s a Joke Copyright by Kunio Miyamoto 28

Same

Style!

5 great assembly language

tankist

• Tankist = Assembly language tanka author



In other programming

language tanka? • Shell Script(/bin/sh)

– line1: #!/bin/sh ← 9letters





• C language

– Line1: main() ←6letter





• C language

– Line1: main() ←6letter


Assembly language tanka is

useful? Yes!

Learning the

• Assembly language programming

• Optimization

• Shellcode programming

etc… Copyright by Kunio Miyamoto

Shellcode?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

Shellcode?


68 54 20 41 43

68 46 49 52 53 89 e1

31 db 43 89 d8

01 c0 01 c0 90 89 c2

01 d2 cd 80 01 d4 c3

No 0x00!

Interesting?


Interesting?

At first, write!



Thank you! If question,

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Joyful assembly language - Assembly Language Tanka