Looking for the RadASM web page I get: "Thank you for visiting RAD Software! Unfortunately, we had to temporarily shut down this website because several files have been (with high probability falsely) classified as malware which caused our hosting provider to shut down the whole CherryTree netw...
Though I also know next to nothing about "ASM", it seems there are several different versions with different syntax floating around out there: MASM32, NASM, FASM and the GNU assembler. There are communities and forums related to each. Some even have RAD IDEs for making MS-Windows programs....