How to resolve the algorithm Arrays step by step in the X86 Assembly programming language
Published on 12 May 2024 09:40 PM
How to resolve the algorithm Arrays step by step in the X86 Assembly programming language
Table of Contents
Problem Statement
This task is about arrays. For hashes or associative arrays, please see Creating an Associative Array. For a definition and in-depth discussion of what an array is, see Array.
Show basic array syntax in your language.
Basically, create an array, assign a value to it, and retrieve an element (if available, show both fixed-length arrays and
dynamic arrays, pushing a value into it).
Please discuss at Village Pump: Arrays.
Please merge code in from these obsolete tasks:
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Arrays step by step in the X86 Assembly programming language
Source code in the x86 programming language
section .text
global _start
_print:
mov ebx, 1
mov eax, 4
int 0x80
ret
_start:
;print out our byte array. ergo, String.
mov edx, sLen
mov ecx, sArray
call _print
mov edx, f_len
mov ecx, f_msg
call _print
mov edx, 6 ;our array members length.
xor ecx, ecx
mov ecx, 4
;turnicate through the array and print all it's members.
;At an offset of *4, each array member is referenced
;at 1,2,3 and so on.
_out_loops:
push ecx
mov ecx, [fArray+esi*4]
call _print
inc esi
pop ecx
loop _out_loops
mov edx, u_len
mov ecx, u_msg
call _print
;Let's populate 'uArray' with something from sArray.
;mov edi, uArray
mov ecx, 4
xor esi, esi
_read_loops:
push dword [fArray+esi*4]
pop dword [uArray+esi*4]
inc esi
loop _read_loops
mov ecx, 4
xor esi, esi
_out_loops2:
push ecx
mov ecx, [uArray+esi*4]
call _print
inc esi
pop ecx
loop _out_loops2
push 0x1
mov eax, 1
push eax
int 0x80
section .data
sArray db 'a','r','r','a','y','s',' ','a','r','e',' ','f','u','n',0xa
sLen equ $-sArray
crap1 db "crap1",0xa
crap2 db "crap2",0xa
crap3 db "crap3",0xa
crap4 db "crap4",0xa
fArray dd crap1,crap2
dd crap3,crap4
f_msg db "fArray contents",0xa,"----------------------",0xa
f_len equ $-f_msg
u_msg db "uArray now holds fArray contents.. dumping..",0xa,"----------------------",0xa
u_len equ $-u_msg
section .bss
uArray resd 1
resd 1
resd 1
resd 1
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