Installation and basic usage of nasm assembler

Experimental environment
ubuntu 18.04

Reference material (very detailed)
address

nasm installation

sudo apt install nasm

test

nasm -v

sample code

test.s

; 测试unpcklps指令
        global  main
        global msg
        extern  puts
        section .text
data1 db  1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
data2 db  17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32

main:
        lea rax, [rel data1]
        lea rbx, [rel data2]
        movups xmm1,[rax]
        movups xmm2,[rbx]
        unpcklps xmm2,xmm1 
        ret

Nasm compiles into object files

nasm -felf64 test.s

After execution, a test.ofile will be generated

gcc link into executable file

gcc test.o -o test

After compilation, testthe file will be generated

run

./test

No output (because nothing is printed), more routines refer to address

gdb debugging

If you encounter an instruction that you don't understand, you can use gdb to debug.