Keep DAA! (was Re: 8086 bugs)

Jim Battle frustum at pacbell.net
Sun Dec 11 08:22:17 CST 2005


Christian Corti wrote:

...
> These are 9 instructions taking 18 bytes.
> How about this:
>     SET R1,#$F0
>     LBI R2,#$F9
>     SLE R1,R2
>     SUB R1,#$39
> Four instructions, eight bytes, EBCDIC character as output! Now guess 
> what machine this is for. Hint: the machine has no flags and no stack.
> 
> Christian

Not even knowing anything about the CPU, I'm guessing it is the CPU in the IBM 
5100.  That was deduced from your interests, not the code.  :-)




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