I allways had very good comment about GoAsm, and I am searching an assembler for 64 bits. I usually use MASM. Actually it does not seem to be easy to get the 64 bits version. I think I will use your assembler but I am afraid. I know it is a good product, but all I have learnt for MASM will it be lost for GoAsm ?
GoAsm syntax is very close to MASM syntax, but simpler and clearer. If you look through the excellent help files, you will have no problem.
Greg