Path: utzoo!utgpu!watmath!watdragon!lion!himacdonald From: himacdonald@lion.waterloo.edu (Hamish Macdonald) Newsgroups: comp.sys.amiga.tech Subject: Re: 68000 => 68010 Summary: baloney Message-ID: <17409@watdragon.waterloo.edu> Date: 20 Oct 89 13:06:43 GMT References: <2261@tutor.tut.fi> <376@enea.se> Sender: daemon@watdragon.waterloo.edu Reply-To: himacdonald@lion.waterloo.edu (Hamish Macdonald) Distribution: na Organization: U. of Waterloo, Ontario Lines: 26 In article <376@enea.se> tope@helios.se (Tommy Petersson) writes: >In article <2261@tutor.tut.fi> nn86302@tut.UUCP () writes: >- I am interested in replacing the 68000 in my A500 to a 68010. >- Is it just possible to remove the 68000 and replace it with >- the 68010? ... >You can just remove the old 68K and put in the 68010. >There is (at least) one instruction that bombs the '010 Amiga, >but there are programs like DeciGel and also (I think) PD versions >that handles this. These, however, reduces the normally not-so-great >10% advantage by some. ... According to what I understand: These programs will not slow down your Amiga. They install a routine into the privileged instruction exception vector. This routine will check if the trapped instruction was the illegal 'MOVE SR,' and will actually execute the legal 'MOVE CCR,'. In other words, these programs will do nothing but sit in memory unless a program on your Amiga attempts to execute this privileged instruction. Hamish. ---------------------------------------------------------------- Hamish Macdonald. himacdonald@lion watmath!lion!himacdonald himacdonald@lion.uwaterloo.ca himacdonald@lion.waterloo.edu