: : The flat assembler is a fast and efficient self-assembling 80x86 assembler for DOS, Windows and Linux operating systems. Currently it supports all 8086-80486/Pentium instructions with MMX, SSE, SSE2, SSE3 and 3DNow! extensions, can produce output in binary, MZ, PE, COFF or ELF format. It includes the powerful but easy to use macroinstruction support and does multiple passes to optimize the instruction codes for size. The flat assembler is self-compilable and the full source code is included.
: : The only difference between the various flat assembler packages is the operating system on which they can be executed. From given source each version will generate exactly the same output file, so with each of the following releases you can compile programs for any operating system.
: FASM is great, but there is no native support for local variables. There are macros, but they are tricky...
: Otherwise awesome assembler!
Fasm is the best assembler i have used, and i have tryed most.
The thing i like the best is error checking, if you get a error in nasm it is so hard to find the right line, with fasm it prints the line with the error in it.