fasm

Just wondering if there was a way i could print out a number to the console by invoking. it can be either base 10, or hex I don't mind. I would like to see the format in which some functions return. I would prefer not to do it the long way using WriteConsole and a lot of asm P.S also this is my first question , how do i accept an answer use printf from msvcrt.dll: format PE console include "win32ax.inc" start: cinvoke printf,formatstring,eax invoke Sleep,-1 formatstring db "%d",13,10,0 section '.idata' import data readable library msvcrt,'msvcrt.dll',\ kernel32,'kernel32.dll' import msvcrt

I have done ARM assembly programming and I would like to learn the Intel Assembler. I keep hearing all these different F/M/N/ASMs mentioned- but I am unsure how they related to what I wish to achieve? Could somebody please help me identify what I would need to learn how to program low level on the Intel architecture? I dont quite understand how the "different Assemblers" correlate, even more so with x86, IA64, AMD64/x86-64 etc? If it is of any help, I am most comfortable with Eclipse and Visual Studio 08/10 IDEs. MASM (Microsoft Assembler) is the popular assembler for Windows. MASM is for 16

I've been messing around with x86-16 assembly and running it with VirtualBox. For some reason when I read from memory and try to print it as a character, I get completely different results from what I was expecting. However when I hard-code the character as part of the instruction, it works fine. Here's the code: ORG 0 BITS 16 push word 0xB800 ; Address of text screen video memory in real mode for colored monitors push cs pop ds ; ds = cs pop es ; es = 0xB800 jmp start ; input = di (position*2), ax (character and attributes) putchar: stosw ret ; input = si (NUL-terminated string) print: cli

Does anyone know any good NASM or FASM tutorials? I am trying to learn assembler but I can't seem to find any good resources on it. There is e.g. Writing A Useful Program With NASM and of course the obvious http://www.nasm.us/doc/nasmdoc3.html . There are a couple of sample programs at http://www.csee.umbc.edu/help/nasm/sample.shtml If you are looking for a more general introduction to assembly programming there is The Art of Assembly Programming and the wikipedia page on NASM references Assembly Language Step by Step by Jeff Duntemann. There is a free book on assembly language by Dr. Paul

I am learning amd64 assembler, and trying to implement a simple Unix filter. For an unknown reason, even simplified to the bare minimum version (code below), it crashes at random. I tried to debug this program in GNU Debugger (gdb). In the default configuration of gdb, the program runs fine, but if I enable address randomization ( set disable-randomization off ), the program starts crashing (SIGSEGV). The problematic instruction is marked in the listing: format ELF64 executable sys_read = 0 sys_write = 1 sys_exit = 60 entry $ foo: label .inbuf at rbp - 65536 label .outbuf at .inbuf - 65536