Received: (from major@localhost) by minnie.cs.adfa.oz.au (8.8.8/8.8.8) id EAA16205 for pups-liszt; Fri, 24 Apr 1998 04:22:42 +1000 (EST) Received: from Zeke.Update.UU.SE (2026@Zeke.Update.UU.SE [130.238.11.14]) by minnie.cs.adfa.oz.au (8.8.8/8.8.8) with ESMTP id EAA16199 for ; Fri, 24 Apr 1998 04:22:36 +1000 (EST) Received: from localhost (bqt@localhost) by Zeke.Update.UU.SE (8.8.8/8.8.8) with SMTP id UAA19426; Thu, 23 Apr 1998 20:22:14 +0200 Date: Thu, 23 Apr 1998 20:22:12 +0200 (MET DST) From: Johnny Billquist To: "Ed G." cc: Milo Velimirovic , pups@minnie.cs.adfa.oz.au Subject: Re: Floating Point-How Important In-Reply-To: <199804221431.JAA01741@mail1.kcnet.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-pups@minnie.cs.adfa.oz.au Precedence: bulk > Would these be a valid instructions? > > jmp -10000(pc) ; jump backwards 10000 bytes > jmp 10(r5); jump ten bytes past the location pointed to by r5 > jmp @500(pc); jump to the address contained in the location pointed > to by the sum of 500 and the pc All of these are valid instructions. The first one is normally written in DEC assembler as FOOBAR: .BLKB 100000 JMP FOOBAR The third would normally be written as: JMP @QUUX .BLKB 500 QUUX: 4712 (That ought to jump to address 4712). The next (obvious) question is how you specify an absolute address, well... JMP @#4712 After looking at it for a while, the syntax should be pretty obvious for you. #4712 is an immediate literal, and prepending an @ means indirect. Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt@update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol