[sebhc] HASL-8 Bug/Corruption?

Steven Parker sp11 at hotmail.com
Thu May 13 04:26:08 CDT 2004


>Btw, does anyone have detailed information on the PID format?

Yea, I posted it last week.  Grab the sebhc.0405 file from the archives, or 
get the H8-5 manual.  But if you are emulating the serial I/O to the tape, 
the format will probably be transparent anyway since PAM takes care of it 
for you.

> >Neat, I didn't remember that.  I'm guessing that any 11xx1101 would be a
> >CALL, and any 1100x011 would be a JMP, and 110x1001 would be RET (and of
> >course, all 00xxx000 are NOP).  I suppose for accurate emulation all of
> >those would have to be handled.
>
>Yeah - only problem is I do not know exactly what all the unimplemented 
>opcodes
>partially decode to ..

I believe what I listed above is the complete set.  If  you add all those 
you should have every possible code covered.

>I loaded hangman and h8demo with the same results - setting PC to
>040.000 worked fine, then boom.

I'm surprised it worked at all.  040.000 is where PAM's ram scratchpad is.  
Tape software starts at 040.100!

Cheers,

- Steven

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