Masm on ADM 64

[Radar]

Hi, recently I switched from Pentium to AMD 64. How would that affect Masm. Can I still use it, would it be much different on 64 bit architecture?
Thanks

[hutch--]

Current MASM produces code that will run on ANY x86 compatible processor. AMD 64 Athlons and Opterons run 32 bit code fine on either 32 or 64 bit OS versions but note that 64 bit MASM is still in the early stages of beta. For 64 bit Windows in its current form, NASM or YASM can apparently produce 64 bit code.

[Radar]

Great, thanks.  :U