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Re: Looking For - 65x02 CPU Simulator Demo!



Doug Mitton wrote:
nexus6gs@applelinks.net (nexus6gs) wrote:


nexus6gs <nexus6gs@applelinks.net> wrote:


I am running it with KEGs v0.91
on a prodos bernie 800k image.
I also am using it with Bernie on a OS9 machine.
I have yet to be able to get the file onto a Working DOS 3.3 image.
It loads @ $4000 and ends @ 5a70.
The LOAD FILE function does not work "Prodos not DOS"
The DECODER BOX Decodes the Command Bytes Correctly but Displays the
BYTE in the DECODER BOX as Jibberish.
All the other commands I have used work fine.
I set my screen to Monochrome in the Apple IIGS CDA Panel.
Set the Emulator to 1mhz or things happen way to fast.

If you would like a copy of the image drop me a note and I can email it
out as a stuffit archived.


Thanks for the offer BUT I have it displaying correctly under ProDOS
now.  I was trying to run it from a hard drive image and it appears
one of my DA's (or something) was messing up the display.


I stand to correct my mistake under KEGs. The simulator does Start off
working but under  small test code;
start ldx #$00
dec   dex
    txa
    bne dec
    jmp  start
It executes the first instruction and decodes it incorrectly
and starts to go into a C076, C075 Loop
I was wrong it does not work.

Sorry for any confusion.


I am seeing something similar.  I haven't investigated it at all BUT I
think it is a 6502 simulator, 65816 must be confusing it.  I just
tried it under a //e emulator (Linux OS, running Wine, running
AppleWin; too wierd.  :-)  ) and it is decoding just fine.  It doesn't
get into the $C076 loop like it does in Kegs.

I may also be incompatible with an interrupt environment...

-michael

Music synthesis for 8-bit Apple II's!
Home page:  http://members.aol.com/MJMahon/

"The wastebasket is our most important design
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