[ASM]

[ASM]
Fix the file header description. Consistently use .endm for closing a macro started with .macro.

[NTVDM]
- Add "_clean" targets to generated asm16 targets.
- Fix CMake dependency generation in a somewhat hackish way: I don't know how to cleanly specify the location of generated files for custom targets. And it is also hackish because in a CMake custom command which depends on the COMMAND.COM target, I also need to explicitely say that the command depends on the output file created by the COMMAND.COM target...
- Add COMMAND.COM to the CD files, even if NTVDM doesn't use an external command.com for now. CORE-5221

svn path=/trunk/; revision=69234