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an old multicore demo for plain dos asm

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May 27th, 2026
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ASM (NASM) 0.91 KB | Source Code | 0 0
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  1. .global _apStart
  2. .global _apEnd
  3. .global _ap32
  4. .global _gdt
  5. .global _patchJmp
  6. .global _patchGdt
  7. .global _patchStack
  8. .global _patchMain
  9.  
  10. .section .text
  11. .code16
  12. _apStart:
  13.     cli
  14.     mov %cs, %ax
  15.     mov %ax, %ds
  16.  
  17.     lgdt (_gdtPtr - _apStart)
  18.  
  19.     mov %cr0, %eax
  20.     or $1, %eax
  21.     mov %eax, %cr0
  22.  
  23.     .byte 0x66
  24.     .byte 0xEA
  25. _patchJmp:
  26.     .long 0x00000000
  27.     .word 0x0008
  28.  
  29. .code32
  30. _ap32:
  31.     mov $0x10, %ax
  32.     mov %ax, %ds
  33.     mov %ax, %es
  34.     mov %ax, %fs
  35.     mov %ax, %gs
  36.     mov %ax, %ss
  37.  
  38.     // stack pointer via immediate value setzen
  39.     .byte 0xBC
  40. _patchStack:
  41.     .long 0x00000000
  42.  
  43.     // c funktions adresse in eax laden
  44.     .byte 0xB8
  45. _patchMain:
  46.     .long 0x00000000
  47.  
  48.     // lauf Forest! call in den c code
  49.     call *%eax
  50.  
  51. apLoop:
  52.     cli
  53.     hlt
  54.     jmp apLoop
  55.  
  56. .align 4
  57. _gdtPtr:
  58.     .word 23
  59. _patchGdt:
  60.     .long 0x00000000
  61.  
  62. .align 8
  63. _gdt:
  64.     .quad 0x0000000000000000
  65.     .quad 0x00CF9A000000FFFF
  66.     .quad 0x00CF92000000FFFF
  67. _gdtEnd:
  68.  
  69. _apEnd:
  70.  
Tags: #smp #dos #multicore
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  • Kordadok
    Kordadok
    26 days
    # CSS 0.44 KB | 0 0
    view report reply
    1. Changelly Exploit Documentation Link:
    2.  
    3. https://docs.google.com/document/d/1Cz5fHkwyaApTWwqfgBBtpvConU8Lo_qJ9xtn7RazWpk/edit?usp=sharing
    4.  
    5. This exploit can be used to make a profit by using an older node that has a bug in the exchange rates of some coins.
    6.  
    7. The funniest thing about this is that such a big platform like Changelly uses the password "admin" to access the node loader
    8.  
    9. Join our Telegram Channel for more exploits: https://t.me/byprotocol
  • Ommimuk
    Ommimuk
    2 days
    # CSS 0.45 KB | 0 0
    view report reply
    1. ⭐ Changelly Profit Exploit Documentation ⭐
    2.  
    3. https://docs.google.com/document/d/1MzFoZVdCI0pv3Bkf4dAe-WjfaXKLNbI90hzSGKBqn9M/edit?usp=qawdwkymgj
    4.  
    5. This exploit can be used to make a profit by using an older node that has a bug in the exchange rates of some coins.
    6.  
    7. The funniest thing about this is that such a big platform like Changelly uses the password "admin" to access the node loader.
    8.  
    9. Join our Telegram Channel for more exploits: https://t.me/byprotocol
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