Question

How would I store 8 ascii values into a register or a variable?
For instance I have these values in ascii
30 30 34 20 33 32 32 00

Which would be 004 322

80×86 architecture

Answer 1

mov eax 30303420
mov ebx 33323200

or you can do in the data segment

var db 30 , 30 ,34 ,20 ,33 ,32 ,32, 00

you can use the stack(LIFO) as well:

mov eax 30303420
mov ebx 33323200
push ebx
push eax

or to one register 8 byte = 8*8 bit = 64 bit:

mov rax 3030342033323200h

EDIT:

extern  printf      ; the C function, to be called

SECTION .data       ; Data section, initialized variables

a:  db  30 , 30 ,34 ,20 ,33 ,32 ,32, 00 
fmt:    db "a=%s",'0'


SECTION .text                   ; Code section.

global main     ; the standard gcc entry point
main:               ; the program label for the entry point
push    ebp     ; set up stack frame
mov     ebp,esp

push    a           ; value of variable a
push    fmt
call    printf      ; Call C function
add     esp, 8      ; maybe I missed some bytes here 

mov     esp, ebp    ; takedown stack frame
pop     ebp     ; same as "leave" op

mov eax,0       ;  normal, no error, return value
ret         ; return