¥È¥Ã¥× «Á°¤ÎÆüµ­(2006-11-08) ºÇ¿· ¼¡¤ÎÆüµ­(2006-11-10)» ÊÔ½¸

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ToDo:


2006-11-09

_ ¤Í¤à¤¤

¤ä¤ë¤Ù¤­¤³¤È¥­¥å¡¼¤¬¤à¤Á¤ã¤¯¤Á¤ã

(04:05)

_ º£Æü¤Ï

¥¸¥ç¥¸¥ç¡¼¤¬ ELF golf ¤È¤«¤ÎÏäò¡£

¤Ê¤ó¤«¤ß¤ó¤Ê»÷¤¿¤è¤¦¤ÊÓϹ¥¤¬

(04:39)

_ hello76

NASM¤â¿¨¤ì¤ó¤È¤Ê¤¡¡¢¤È¤¤¤¦¤³¤È¤Ç Hello world! 76B ¤ò°Ü¿¢¡£ ¤µ¤é¤Ë¥´¥ë¥Õ¤·¤è¤¦

; hello76.asm

BITS 32
        org     0x00000000
        db      0x7F, "ELF"      ; e_ident
        db      "Hello world!"
        dw      2                ; e_type
        dw      3                ; e_machine
_start: mov byte [EDI+0x10], 0xa ; e_version               ; set "\n"
        dd      _start           ; e_entry                 ; fall through!
        dd      phdr - $$        ; e_phoff
        lea     EDX, [ECX+0xd]   ; e_shoff
        lea     EAX, [ECX+0x4]   ; e_flags
        mov     ECX, EAX
        jmp short label1         ; e_ehsize
        dw      32               ; e_phentsize
phdr:   dd      1                ; e_phnum     ; p_type
                                 ; e_shentsize
        dd      0                ; e_shnum     ; p_offset
                                 ; e_shstrndx
        dd      0                              ; p_vaddr
label1: inc     EBX                            ; p_paddr
        jmp short label2
        db      0
        dd      76                             ; p_filesz
        dd      76                             ; p_memsz
        db      0xff                           ; p_flags
label2: int     0x80
        xchg    EBX, EAX
        xor     EBX, EBX                       ; p_align
        int     0x80
filesize equ    $ - $$

(05:37)

_ ¤Õ¤à

¤³¤Î¥¢¥×¥í¡¼¥Á¤Ï¸­¤¤¤Ê¤¡¤È¤Ï»×¤Ã¤¿¤±¤É¡¢ "Hello world" ¤Î¤¢¤ë°ÌÃÖ¤¬ 0x00200000 ¤È¤«¤Ë¤Ê¤Ã¤Á¤ã¤Ã¤Æ¡¢ ¤³¤ì¤¬¤¦¤Ã¤È¤¦¤·¤¤¤ó¤À¤è¤Ê¤¡¡Ä

¤µ¤Ã¤­¤Î Hello world ¤Ï EAX(write¥·¥¹¥Æ¥à¥³¡¼¥ë) ¤È ECX(4ByteÌܤËHello world¤¬ÃÖ¤¤¤Æ¤¢¤ë) ¤¬ °ìÃפ·¤Æ¤ë¡¢¤È¤«¤½¤¦¤¤¤¦¤Î¤¬Èþ¤·¤¤¤ó¤À¤±¤É

; hello.asm

BITS 32
        org     0x00200000
        db      0x7F, "ELF"             ; e_ident
        db      "Hello world", 0xa
        dw      2                       ; e_type
        dw      3                       ; e_machine
;_start: jmp short label1                ; e_version
;        dw      0
        dd      1               ; e_version
        dd      _start          ; e_entry
        dd      phdr - $$       ; e_phoff
phdr:   dd      1               ; e_shoff       ; p_type
        dd      0               ; e_flags       ; p_offset
        dd      $$              ; e_ehsize      ; p_vaddr
                                ; e_phentsize
        dw      1               ; e_phnum       ; p_paddr
        dw      0               ; e_shentsize
        dd      filesize                ; e_shnum       ; p_filesz
                                        ; e_shstrndx
        dd      filesize                                ; p_memsz
;         db      0xff
        dd      5                                       ; p_flags
        dd      0x1000                                  ; p_align
;  _start: xor     eax, eax
;          inc     eax
;          int     0x80
;_start: mov byte [EDI+0x10], 0xa                        ; p_flags
_start: mov     ECX, 0x00200000                         ; p_align
        lea     EDX, [EDI+0xd]                          ; p_align
        lea     EAX, [EDI+0x4]
        lea     ECX, [ECX+0x4]
        inc     EBX
        int     0x80
        xchg    EBX, EAX
        xor     EBX, EBX
        int     0x80
filesize      equ     $ - $$

¥³¥á¥ó¥È̵Ãã¶ìÃã¤ä¤Ê¡£

(06:14)

_ 78B

¤µ¤Ã¤­¤Î¤Ï 88B

¤¦¡¼¤ó ! ¤Ï̵¤¤¤·¤Ê¤ó¤«¤Ê¤¡¡£ x86 ¤Ã¤Æʸ»úÎó¥³¥Ô¡¼Ì¿Îá¤È¤«¤¢¤Ã¤¿¤È»×¤¦¤±¤É¡¢ ¤¢¤Î¤Ø¤ó»È¤¦¤È´°Á´¤Ë 76B ¤Ë¤Ï¤Ê¤é¤óµ¤¤¬¤¹¤ë¤Ê¤¡¡£

¤¢¤ÈåºÎï¤Ë½Å¤Ê¤ê¤¹¤®¤Æ¤Æ fall through ¤Ç¤­¤Ê¤¤¤Î¤âÈþ¤·¤¯¤Ê¤¤¤è¤Ê¤¡¡£

(06:19)

_ 75B

¤¢¤È¤Ï¥ë¡¼¥ëÊѤ¨¤¿¤é¤Þ¤À½Ì¤à¤±¤É¤Ê¤¡¡£

(06:31)

_ 74B

; hello.asm

BITS 32
        org     0x00200000
        db      0x7F, "ELF"             ; e_ident
        db      "Hello world", 0xa
        dw      2                       ; e_type
        dw      3                       ; e_machine
exit:   xor     EBX, EBX                ; e_version
        int     0x80
        dd      _start                  ; e_entry
        dd      phdr - $$               ; e_phoff
phdr:   dd      1                       ; e_shoff       ; p_type
        dd      0                       ; e_flags       ; p_offset
        dd      $$                      ; e_ehsize      ; p_vaddr
                                        ; e_phentsize
        dw      1                       ; e_phnum       ; p_paddr
        dw      0                       ; e_shentsize
        dd      filesize                ; e_shnum       ; p_filesz
                                        ; e_shstrndx
        dd      filesize                                ; p_memsz
_start: inc     ECX
        shl     ECX, 21
        lea     EDX, [EDI+0xd]
        lea     EAX, [EDI+0x4]
        add     ECX, EAX
        inc     EBX
        int     0x80
        xchg    EBX, EAX
        jmp     exit
filesize equ     $ - $$

¤È¤ê¤¢¤¨¤ºÉáÄ̤ˤä¤ë¤È exit 0 ¤¹¤ë¥³¡¼¥É¤Ï¤³¤ó¤Ê¤È¤³¤«¤Ê

(06:42)

_ fall through ¤â¤à¤º¤«¤·¤½¤¦

(06:48)

_ 73B

exit 0

(07:11)

_ 73B ¤È 72B

ËöÈø¤Î ! ¤Ë¤³¤À¤ï¤ë¤È¤¹¤ë¤È¡¢ ¤¦¡¼¤ó¤¦¤Þ¤¯ e_type, e_machine ¤¬ fall through ¤Ç¤­¤Ê¤¯¤Æ¡¢

BITS 32
        org     0x00200000
        db      0x7F, "ELF"             ; e_ident
_start:
        inc     EBX
        mov     ECX, hello
        lea     EDX, [EDI+0xd]
        inc     EAX
        jmp     short label1
        dw      2                       ; e_type
        dw      3                       ; e_machine
label1:                                 ; e_version
        inc     EAX
        inc     EAX
        jmp     short label2
        dd      _start                  ; e_entry
        dd      phdr - $$               ; e_phoff
phdr:   dd      1                       ; e_shoff       ; p_type
        dd      0                       ; e_flags       ; p_offset
        dd      $$                      ; e_ehsize      ; p_vaddr
                                        ; e_phentsize
        dw      1                       ; e_phnum       ; p_paddr
        dw      0                       ; e_shentsize
        dd      filesize                ; e_shnum       ; p_filesz
                                        ; e_shstrndx
        dd      filesize                                ; p_memsz
        db      0xff
label2:
        inc     EAX
        int     0x80
hello:
        db      "Hello world!", 0x0a
filesize equ    $ - $$

¤Ç 73B ¡£¤³¤ì¤Ï¥»¥°¤ë¡£ exit ¤µ¤»¤¿¤­¤ã¤â¤¦3B¡£¤µ¤é¤Ë1B¤ÇÀµ¾ï½ªÎ»¤Ë¡£ ¤Þ¤¡ 76B ±Û¤¨¤ë¤È°ÕÌ£¤¬¤Ê¤¤¡£

ËöÈø¤Î ! ¤Ë¤³¤À¤ï¤é¤Ê¤¤¤Ê¤é

BITS 32
        org     0x00200000
        db      0x7F, "ELF"             ; e_ident
        db      "Hello world", 0xa
        dw      2                       ; e_type
        dw      3                       ; e_machine
_start:                                 ; e_version
        inc     ECX
        inc     EAX
        jmp     short main
        dd      _start                  ; e_entry
        dd      phdr - $$               ; e_phoff
phdr:   dd      1                       ; e_shoff       ; p_type
        dd      0                       ; e_flags       ; p_offset
        dd      $$                      ; e_ehsize      ; p_vaddr
                                        ; e_phentsize
        dw      1                       ; e_phnum       ; p_paddr
        dw      0                       ; e_shentsize
        dd      filesize                ; e_shnum       ; p_filesz
                                        ; e_shstrndx
        dd      filesize                                ; p_memsz
main:
        shl     ECX, 21
        lea     EDX, [EDI+0xd]
        lea     EBX, [EDI+0x4]
        add     ECX, EBX
sys:
        xchg    EBX, EAX
        int     0x80
        jmp     short sys
filesize equ    $ - $$

¤Î 72B ¤¢¤¿¤ê¤¬¡¢ exit 13 ¤Ë¤Ê¤Ã¤Á¤ã¤¦¤±¤É¡¢°ì±þ¡£

exit 0 ¤Ë¤¹¤ë¤È¡¢ 73B ¤Ë¤Ê¤Ã¤¿¡£

BITS 32
        org     0x00200000
        db      0x7F, "ELF"             ; e_ident
        db      "Hello world", 0xa
        dw      2                       ; e_type
        dw      3                       ; e_machine
exit:   xor     EBX, EBX                ; e_version
        int     0x80
        dd      _start                  ; e_entry
        dd      phdr - $$               ; e_phoff
phdr:   dd      1                       ; e_shoff       ; p_type
        dd      0                       ; e_flags       ; p_offset
        dd      $$                      ; e_ehsize      ; p_vaddr
                                        ; e_phentsize
        dw      1                       ; e_phnum       ; p_paddr
        dw      0                       ; e_shentsize
        dd      filesize                ; e_shnum       ; p_filesz
                                        ; e_shstrndx
        dd      filesize                                ; p_memsz
_start:
        lea     EDX, [EDI+0xd]
        lea     EAX, [EDI+0x4]
        mov     ECX, 0x00200004
        inc     EBX
        int     0x80
        xchg    EBX, EAX
        jmp     exit
filesize equ     $ - $$

¤¤¤º¤ì¤Ë¤»¤è¤â¤Ã¤ÈÌ¿Îá¤ò ¥Ø¥Ã¥À¤Ëʶ¤ì¤³¤Þ¤»¤ì¤Ð¤â¤¦¤Á¤ç¤¤ºï¤ì¤ëµ¤¤¬¤¹¤ë¡Ä

(08:44)

_ 2634

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(16:38)

_ °ä¸À¤Ë¤Ä¤¤¤Æ¤Ï

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¤¢¤Þ¤ê¤Ë¤É¤¦¤Ç¤â¤¤¤¤¥ê¥¹¥¯¤À¤Ã¤¿¡Ä¡ª

(16:40)

_ life hack

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  • oblongular ...

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_ test sbj

test body

(19:16)

_ by shinh

_ (19:15)

_ ¤Û¤²¤Û¤²¡¼

by shinh

(19:15)

_ ¤È¤¤¤¦¤ï¤±¤Ç

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(19:29)

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(19:30)

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(19:31)

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(19:32)

_ ÃÊÍî¥Æ¥¹¥È

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(19:37)

_ µ­Ë¡¥Æ¥¹¥È

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_ #mazop ¤Î¤µ¤½¤¤

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_ µ­Ë¡

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(19:43)

_ ²¶³èÆ°µòÅÀ

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(19:47)

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(23:56)

¤ªÌ¾Á°:
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