First commit

Readme.md

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+# Hello Assembler
+
+I will sharing all my assembly files that I am able to compile in a operating system.
+
+It is not my goal to provide any tools that can be used to penetration testing, but i dont know if you are using my stuff to this.
+
+Compilation procedure for Linux environment
+
+Compile hello-world-minimal.c:
+
+	gcc hello-world-minimal.c -o helloworld_bin
+	chmod +x helloworld_bin
+
+Compile helloword.asm
+
+	nasm -f elf64 helloworld.asm
+	ld helloworld.o -o helloworld
+	chmod +x helloworld
+
+It is interesting that C compiled source code is bigger in size than program code that is written in Assembly.

hello-world-minimal.c

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+#include <stdio.h>
+
+int main(int argc, char **argv)
+{
+	char* text = "Hello, World!";
+	printf("%s\n", text);
+	return 0;
+}

helloworld.asm

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+; Define variables in the data section
+SECTION .DATA
+	hello:     db 'Hello world!',10
+	helloLen:  equ $-hello
+
+; Code goes in the text section
+SECTION .TEXT
+	GLOBAL _start 
+
+_start:
+	mov eax,4            ; 'write' system call = 4
+	mov ebx,1            ; file descriptor 1 = STDOUT
+	mov ecx,hello        ; string to write
+	mov edx,helloLen     ; length of string to write
+	int 80h              ; call the kernel
+
+	; Terminate program
+	mov eax,1            ; 'exit' system call
+	mov ebx,0            ; exit with error code 0
+	int 80h              ; call the kernel