Friday May 26 1995 19:18, Bill Grimsley wrote to Paul Edwards:

 BG> The newest DOS executable has begun crashing almost immediately here.
 BG> The first few times it gave errors similar to the following...

 BG> 1.  QEMM Exception #13 at 6620:FFFF, error code: 0000
 BG>     AX=0925 BX=6F77 CX=6B72 DX=7720 SI=7469 DI=2068 BP=6168
 BG>     DS=6472 ES=6177 SS=393C SP=1E3A Flags=7782
 BG>     Instruction: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    Does the executable that Bill has include the code fix I suggested?
This could possibly cause something like the above, if you made a minor
mistake. ASM is not so forgiving, you can make a subtle error and it's very
hard to track down. If so, then compile without those extra additions.

    The above looks like a function returning to an incorrect address,
which tends to agree with my above theory. Possibly also accidentally
trashing code memory.

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