Re: [MI400] Header for symbol table (my first post)

["Ron Melby" <qgenesist@xxxxxxxxxxx>]

Having that information what does that help me do? sorry to sound so stupid 
but I know where the symbols are from other offsets and dumping and going 
around the 2260 bytes, having this chain helps me transverse what? or is 
info to find more what? thanks for your patience ron melby

> From: Gene_Gaunt@xxxxxxxxxxxxxxx
> Reply-To: MI Programming on the AS400 / iSeries <mi400@xxxxxxxxxxxx>
> To: MI Programming on the AS400 / iSeries <mi400@xxxxxxxxxxxx>
> Subject: Re: [MI400] Header for symbol table (my first post)
> Date: Thu, 2 Sep 2004 15:48:48 -0400
>
>
> Those 2260 bytes are:
>
> 4 bytes, number of hash chains in symbol table (always prime number 563)
> 2252 bytes: array of 563 four-byte offsets to first item in a chain
>
> The MI compiler drops each program symbol into one of 563 hash chains in
> this way (pseudo code):
>
> XOR HASH, SYMBOL(1:4), SYMBOL(5:4)
> REM(SB) HASH, 563 / NNEG(SKIP);
> ADDN(S) HASH, 563;
> SKIP:
>
> The result is a number from 0 to 562, the number of a hash chain for that
> symbol.  Each hash chain is a one-way linked list, the first 4-bytes of
> each entry is the offset to the next entry, the last entry in each chain
> contains -1.
>
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