Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!ALASKA.BITNET!SXRJC From: SXRJC@ALASKA.BITNET (ROBERT J CONCANNON) Newsgroups: comp.lang.asm370 Subject: opsyn opcode in ibm bal Message-ID: <8906070207.AA12990@jade.berkeley.edu> Date: 6 Jun 89 17:21:55 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: IBM 370 Assembly Programming Discussion List Distribution: inet Organization: The Internet Lines: 5 cany anyone tell me what 'opsyn' is used for? it seems to me that a way to redefine (or undefine) standard opcodes would create maintenance problems. what benefit is provided that offsets the risk? i myself have never seen 'opsyn' used anywhere, but i am not primarily an assembler programmer. thanks, bob concannon, university of alaska, fairbanks