Title here
Summary here
Arrays in Assembly Language
section .data
emp_msg db "emp: ", 0
set_msg db "set: ", 0
get_msg db "get: ", 0
len_msg db "len: ", 0
dcl_msg db "dcl: ", 0
idx_msg db "idx: ", 0
twod_msg db "2d: ", 0
newline db 10, 0
section .bss
array resw 5
array_b resw 5
array_c resw 5
twod_array resw 6
section .text
global _start
_start:
; Initialize array with zeros
mov ecx, 5
mov edi, array
xor eax, eax
rep stosd
; Print empty array
mov esi, emp_msg
call print_string
mov esi, array
mov ecx, 5
call print_array
; Set value at index 4
mov word [array + 8], 100
; Print set array
mov esi, set_msg
call print_string
mov esi, array
mov ecx, 5
call print_array
; Print get value
mov esi, get_msg
call print_string
mov ax, [array + 8]
call print_int
; Print length
mov esi, len_msg
call print_string
mov eax, 5
call print_int
; Initialize array_b with values
mov word [array_b], 1
mov word [array_b + 2], 2
mov word [array_b + 4], 3
mov word [array_b + 6], 4
mov word [array_b + 8], 5
; Print dcl array
mov esi, dcl_msg
call print_string
mov esi, array_b
mov ecx, 5
call print_array
; Initialize array_c with specific indices
mov word [array_c], 100
mov word [array_c + 6], 400
mov word [array_c + 8], 500
; Print idx array
mov esi, idx_msg
call print_string
mov esi, array_c
mov ecx, 5
call print_array
; Initialize 2D array
mov ecx, 2
mov edi, twod_array
.outer_loop:
push ecx
mov ecx, 3
.inner_loop:
mov eax, 2
sub eax, [esp]
add eax, ecx
dec eax
mov [edi], ax
add edi, 2
loop .inner_loop
pop ecx
loop .outer_loop
; Print 2D array
mov esi, twod_msg
call print_string
mov esi, twod_array
mov ecx, 2
mov edx, 3
call print_2d_array
; Exit program
mov eax, 1
xor ebx, ebx
int 0x80
; Utility functions (print_string, print_int, print_array, print_2d_array) would be implemented hereThis Assembly Language code demonstrates the concepts of arrays similar to the original Go example. Here’s an explanation of the key parts:
We define arrays in the
.bsssection using thereswdirective, which reserves words (16-bit values) for our arrays.The
_startsection initializes and manipulates the arrays:- We use
rep stosdto initialize the first array with zeros. - We set a value at index 4 using direct memory addressing.
- We initialize
array_bwith specific values. - We initialize
array_cwith values at specific indices. - We create a 2D array using nested loops.
- We use
Throughout the code, we call utility functions (not shown here for brevity) to print the arrays and messages.
The 2D array is represented as a flat array in memory, but we use nested loops to initialize and print it as a 2D structure.
Note that Assembly Language doesn’t have built-in high-level concepts like slices or dynamic arrays. We’re working directly with memory and using lower-level constructs to achieve similar functionality.
The code demonstrates array initialization, accessing and modifying array elements, and working with multi-dimensional arrays in Assembly Language. The exact syntax and available instructions may vary depending on the specific assembly flavor and target architecture.