Xref: utzoo comp.sys.intel:476 comp.sys.ibm.pc:17250 Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!killer!richardh From: richardh@killer.UUCP (Richard Hargrove) Newsgroups: comp.sys.intel,comp.sys.ibm.pc Subject: Re: Raiders of the lost opcodes of the 80386 Summary: these are not Intel mnemonics Message-ID: <4814@killer.UUCP> Date: 16 Jul 88 13:06:20 GMT References: <4071@korppi.tut.fi> Organization: The Unix(R) Connection, Dallas, Texas Lines: 13 In article <4071@korppi.tut.fi>, jja@tut.fi (Ahola Jari) writes: > What has happened to 80386's opcodes IBTS and XBTS (insert and extract > bit streams) ? MASM 5.0 regocnises the opcodes, but doesn't generate the > right code. Has this been fixed in MASM 5.X or are these opcodes no longer > supported in 80386? First, these mnemonics are not documented in Intel's _80386 Programmer's Reference Manual_. I checked both chapter 17, "80386 Instruction Set", and Appendix A, Opcode Map. So my question is: What opcodes are supposed to be the correct ones for the above instructions? richard hargrove ...!{ihnp4 | codas | cbosgd}!killer!richardh --------------------------------------------