;Main.asm
.386
.model small,c		;This bit is important, I think.
.stack 1000h

.data
	hello db "Hello world!",0

.code
	;includelib libucrt.lib						;All this shit is already here if you have a C object file
	includelib legacy_stdio_definitions.lib		;Except for this. Basically printf, puts etc
	;includelib libcmt.lib
	;includelib libvcruntime.lib ;Visual Studio exception handling and type checking. Not needed otherwise

extrn printf:near ;Extern everything you are gonna use from the c obj files
extrn plusTwo:near
extrn exit:near

public plusOne ;Have to declare it public for the linker to see it. In NASM, it's .globl or global
plusOne proc ;Our int plusOne(int) function.
	pop eax ;Parameters are stored on the stack.
	add eax, 1
	ret ;eax is whatever is returned from functions. Also why you can only return one thing.
plusOne endp

public main
main proc
	push offset hello
	call printf
	push	1
	call	plusTwo
	push 0
	call exit
main endp

end		;End of file, not program

//bruh.c
//#include <stdio.h>					Has to be included with "includelib legacy_stdio_definitions.lib" in the asm file for some reason.
//int printf(const char* format, ...);

extern int plusOne(int); //Extern everything you are gonna use from the asm obj files

int plusTwo(int num) {
	return plusOne(plusOne(num)); //Plus one is defined in the assembly.
}

x86 MASM C Linking

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
</html>

Untitled

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

x86 MASM C Linking

More Plaintext Posts

Untitled

Untitled

Untitled

Untitled

Lorem Ipsum Plaintext

Untitled