vasm is a portable and retargetable assembler to create linkable
objects in various formats or absolute code.
Multiple CPU-, syntax and output-modules can be selected.

Currently the following CPUs are officially supported by vasm:

    M680x0 family (including M6888x, M68851 and CPU32)
    ColdFire family (all models of V2, V3, V4, V4e)
    80x86 family (IA32 8/16/32 bit, using MIT-syntax)
    PowerPC family (POWER, 40x, 6xx, 7xx, 7xxx, 860, e300)
    ARM (architecture ARMv1 to ARMv4, including THUMB mode)
    Jaguar RISC (GPU and DSP instruction sets)
    Z80 family (Z80, 8080, GBZ80, 64180, RCM2/3/4k)
    C16x/ST10
    6502 family
    6800 family (6800, 68HC11)

These syntax flavours are supported:

    Standard MIT (GNU-as style) syntax
    Motorola/Freescale 68k syntax (Devpac compatible)
    Old 8-bit style syntax

WWW: http://sun.hasenbraten.de/vasm/