How to Start Coding Assembly on Windows (MASM)

Step 1.

Download MASM32: http://masm32.com/masmdl.htm

Step 2.

Save the following Assembly code as “helloworld.asm”

.386
.model flat, stdcall
option casemap :none

include masm32includekernel32.inc
include masm32includemasm32.inc
includelib masm32libkernel32.lib
includelib masm32libmasm32.lib

.data
message db “This is your first assembly program”, 0

.code
main:
invoke StdOut, addr message
invoke ExitProcess, 0
end main

Step 3:

Navigate to the folder you saved the file in. Then compile it into an executable and run it with the following:

set projectName=helloworld
masm32binml /c /Zd /coff %projectName%.asm
masm32binLink /SUBSYSTEM:CONSOLE %projectName%.obj
%projectName%.exe

See more here: http://crclayton.com/projects/assembly-tutorial/

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