Unidad No.1-Emuladores online

1-assembler online

https://schweigi.github.io/assembler-simulator/

Código:

; Simple example

; Writes Hello World to the output

JMP start

hello: DB "Ivan Gutierrez!" ; Variable

       DB 0 ; String terminator

start:

MOV C, hello    ; Point to var 

MOV D, 232 ; Point to output

CALL print

        HLT             ; Stop execution

print: ; print(C:*from, D:*to)

PUSH A

PUSH B

MOV B, 0

.loop:

MOV A, [C] ; Get char from var

MOV [D], A ; Write to output

INC C

INC D  

CMP B, [C] ; Check if end

JNZ .loop ; jump if not

POP B

POP A

RET

2-assembler online

https://www.tutorialspoint.com/compile_assembly_online.php

Código:

section .text

global _start       ;must be declared for using gcc

_start:                     ;tell linker entry point

mov edx, len    ;message length

mov ecx, msg    ;message to write

mov ebx, 1     ;file descriptor (stdout)

mov eax, 4     ;system call number (sys_write)

int 0x80        ;call kernel

mov eax, 1     ;system call number (sys_exit)

int 0x80        ;call kernel

section .data

msg db 'Ivan Gutierrez!',0xa ;our dear string

len equ $ - msg ;length of our dear string

3-simulador assembler

http://rextester.com/l/nasm_online_compiler

Código:

;nasm 2.11.08

section .data

    hello:     db 'Ivan Gutierrez!',10    ; 'Hello world!' plus a linefeed character

    helloLen:  equ $-hello             ; Length of the 'Hello world!' string

section .text

global _start

_start:

mov eax,4            ; The system call for write (sys_write)

mov ebx,1            ; File descriptor 1 - standard output

mov ecx,hello        ; Put the offset of hello in ecx

mov edx,helloLen     ; helloLen is a constant, so we don't need to say

                     ;  mov edx,[helloLen] to get it's actual value

int 80h              ; Call the kernel

mov eax,1            ; The system call for exit (sys_exit)

mov ebx,0            ; Exit with return code of 0 (no error)

int 80h;