Xref: utzoo comp.sys.amiga:37010 comp.sys.amiga.tech:6208 Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!sun-barr!newstop!sun!kilowatt!raz From: raz%kilowatt@Sun.COM (Steve -Raz- Berry) Newsgroups: comp.sys.amiga,comp.sys.amiga.tech Subject: Re: Need information about 68010. Summary: You got some. Keywords: 68010, 68000 Message-ID: <116164@sun.Eng.Sun.COM> Date: 18 Jul 89 00:48:18 GMT References: <1407@rivm05.UUCP> Sender: news@sun.Eng.Sun.COM Reply-To: raz@sun.UUCP (Steve -Raz- Berry) Organization: Sun Microsystems, Mountain View Lines: 77 In article <1407@rivm05.UUCP> ccemdd@rivm.UUCP (Marco Dedecker) writes: >I own an A500, and I would like to know if there is someone that has >replaced his 68000 by an 68010. Way back in the begining I owned an A500. I also upgraded to a 68010 when I was able to get a engineering sample from a local Moto rep. >I am thinking of replacing my 68000 by an 68010, but there are >somethings I need to know. >- Is swapping the chips all you need to do, or are there some other > ajustments you have to make ? That's all there is to it. The Amiga OS will automaticly figure out that you have installed a '010 and accomodate it. Of course opening the A500's case is no walk in the park, so it's not as simple as it sounds. Also remember that your warentee will be void if you open the case. >- Does all the software still work with the 68010 ? NO. Some games won't work. There may be other "productivity" software that won't work either. The way I would test any new software that you buy would be to check it out on a A2620 machine at your local dealer first. Chances are that if it works on the A2620, it *probably* will work on the '010. There are a few PD programs that will "fix" an improperly written program to run on a '010. The two that I am aware of are Fix68010 and Decigel (I think). Don't ask me for them cause I don't have them anymore. >- What are the advantages of the 68010 ? > >I remember someone sending a list of advantages of the 68010, but >at that time I wasn't interested, so I don't have it anymore. >I would appreciate it if someone could send me that list. I'll give you what I remember. 10% speed improvement. This is due to optimization of the nano-code that executes the instructions. 3 line instruction cache. This allows very small loops to execute internal to the chip. It's effect however is nearly nil except in very rare cases. More internal state information is dumped on the stack during exceptions to allow the processor to resume exectution properly. The 68k didn't save enough state to allow a vertual memory system to function properly. The 68010 does. The MOVE ,ea (or are the operands the otherway around?) was moved to be a supervisor only instruction. Properly written programs will not use this instruction so you should be safe right?? ;-| >Thanks in advance, One caveat, I had MASSIVE problems with my system with a '010 and the FFS when 1.3 came out. This turned out to be a problem with the '010 itself and was fixed by replacing the chip with the original 68K. It took me ages to find, mainly because everything worked fine with the old file system, and I was beta testing the FFS before it was released. I don't know how many times I saw the R/W error eat my hard disk. Andy was real patient with me, even though I was probably driving him crazy with a problem he couldn't fix. So the moral is BE CAREFUL and back up everything first. >Marco Dedecker I want to make it completely clear that the '010 functions prefectly fine in the Amiga. My problems occured because of a bad sample. -- Steve -Raz- Berry Disclaimer: I didn't do nutin! UUCP: sun!kilowatt!raz ARPA: raz%kilowatt.EBay@sun.com KILOWATT: sun!kilowatt!archive-server archive-server%kilowatt.EBay@sun.com