Lab4


x86_64 intro and assembly language program
  • With syscall and without printf function creates more work for cpu
  • The syscall invokes one or more registers than write command
  • There is 2 assembly codes format: NASM and GAS
  • GAS
    • it's a GNU assembler syntax
    • it works from left to right
  • NASM
    • it works from right to left
    • it's a lot similar to Aarch64
In order to have numbers without 0's in first digit column in first ten numbers is "cmp", "jne" commands and a label.


AARCH64 intro and assembly language program
  • It's similar to x86_64
  • It uses NASM which reads the code from right to left
  • Cannot write to memory from address

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