rn999@ndmath.UUCP (Ross Niebergall) (07/25/88)
I have been looking for a CP/M emulator to use on the Amiga with mixed results. On Fred Fish 109 there is a program called SIMCPM which simulates a 8080, but I would like one to do Z80 simulation. If anyone has one or knows where to get one I would appreciate it. Thanks in advance. Ross Niebergall Bitnet: GNZAS6 University of Notre Dame Dept. of Mathematics Notre Dame, IN. 46637
dml@loral.UUCP (Dave Lewis) (07/26/88)
In article <1191@ndmath.UUCP> rn999@ndmath.UUCP (Ross Niebergall) writes: >I have been looking for a CP/M emulator to use on the Amiga with mixed results. >...to do Z80 simulation. If anyone has one or knows where to get ..and just this weekend I was digging out and restacking a bunch of old magazines. In my stack of Dr. Dobb's Journals I found exactly that -- an 8080 emulator in 68000 assembly language. The beast was written to run on CP/M 68000 (geccch) but it might not be too hard to get it to run on the Amiga...maybe. It uses a jump table and 256 instruction emulation routines. Some, but not all, Z-80 instructions are also simulated. The author says it has about the same performance as a 1.4 meg Z-80 when run on an 8 meg 68000 (the original Z-80 ran at 2.5 megs) although some programs slow it down more than others. This listing was split over the Jan, Feb and March 1986 issues of Dr. Dobb's Journal. I've got 'em sitting on my Amiga desk and I'm gonna type them in one of these days, really I am. I'll post it to the net if I ever get it running. By the way, is anybody out there using Aegis Draw Plus? I wrote a short program that generates regular n-sided polygons and outputs them in Draw+ part format and if there's enough interest out there I'll post it. Also, I'm using Draw+ for PCB layout; is anybody else out there doing that? (I'm using it for schematics, graphic art, woodworking and furniture configuration, too) -- Dave Lewis Loral Instrumentation San Diego (619) 282-3341 ihnp4 --\ bang --\ kontron -\ hp-sdd --\ calmasd ->-> crash ->--> loral!dml sdcrdcf -->--------> sdcsvax -/ (uucp)
sneakers@heimat.UUCP (Dan "Sneakers" Schein) (07/27/88)
In Message <1191@ndmath.UUCP>, rn999@ndmath.UUCP (Ross Niebergall) writes: >I have been looking for a CP/M emulator to use on the Amiga with mixed results. >On Fred Fish 109 there is a program called SIMCPM which simulates a 8080, but I >would like one to do Z80 simulation. If anyone has one or knows where to get >one I would appreciate it. I don't know where you can get one, but I do know a local guy who is a real CP/M buff (nut is more like it :-). He uses a BridgeBoard and some ms-dos Z80 card. It may not be cheap, but it works! >Thanks in advance. Your welcome...... >Ross Niebergall Bitnet: GNZAS6 -- Dan "Sneakers" Schein {ihnp4|allegra|burdvax|rutgers}!cbmvax!heimat!sneakers Sneakers Computing 2455 McKinley Ave West Lawn PA 19609 Call: BERKS AMIGA BBS 24 Hrs - 3/12/2400 Baud Disclaimer: Any opinions expressed are 40 Meg -=- 215/678-7691 those of Sneakers Computing Of course heimat is an Amiga, doesn't everyone run UUCP & UseNet on an Amiga?
koster@cory.Berkeley.EDU (JAG (Just Another Guy)) (07/28/88)
I know of a CP/M emulator that is in the public domain on the fish disks. It even has some test programs that work. Okay, a version is on FF # 109. I think it has source also.
lbruck@eneevax.UUCP (Lewis S.Bruck) (07/28/88)
In article <1814@loral.UUCP> dml@loral.UUCP (Dave Lewis) writes: >In article <1191@ndmath.UUCP> rn999@ndmath.UUCP (Ross Niebergall) writes: >>I have been looking for a CP/M emulator to use on the Amiga with mixed results. >>...to do Z80 simulation. If anyone has one or knows where to get > > ..and just this weekend I was digging out and restacking a bunch of old >magazines. In my stack of Dr. Dobb's Journals I found exactly that -- an 8080 >emulator in 68000 assembly language. The beast was written to run on CP/M 68000 the raw source for the simulator is available via anonymous ftp from trantor.umd.edu in info-amiga/simulate-8080, along with a lot of other amigoid software. I don't know in what shape the source is in (spherical files :-) ----------- Lewis Bruck lbruck@eneevax.umd.edu Not officially official to say I am not official enough to say anything
rap@ardent.UUCP (Rob Peck) (07/29/88)
This is Errata4 for the Programmers Guide To The Amiga:
In listing 4.9, the main barchart program, the line
WaitPort(w->UserPort);
should be moved down to become the first statement inside
the wait(1) loop. The program apparently works without
this change, but has the unfortunate side effect of a
polling-the-UserPort-busy-wait-loop. The fix makes the
program multi-tasking friendly. So the resultant change
makes the loop:
while(1)
{
WaitPort(w->UserPort);
msg=(struct IntuiMessage *)GetMsg(w->UserPort);
... and so on.
Rob Peck