[retroforth] Re: ztype in assembler
- From: "Ron Aaron" <ron@xxxxxxxxxxx>
- To: retroforth@xxxxxxxxxxxxx
- Date: Thu, 27 Jan 2005 12:14:52 -0800 (PST)
On Thu, January 27, 2005 5:35, Helmar Wodtke said:
> retroforth@xxxxxxxxxxxxx schrieb am 27.01.05 02:55:00:
> 10% less time on my processor needs (but 23 bytes):
Excellent - same result for me.
> So I think this is similar for other tasks. For speed reasons it seems to be
> best to completely avoid block/string instructions. I'm currently not sure if
> it is a good idea to replace the LODSD for "drop" in the compiler: the
> conditions ("if"-stuff) are coded with short jumps...
I did change drop to
mov eax, [esi]
add esi, 4
it gained me another 5-10%.
The conditional code needs to be smart and compile either a near or a far
jump... this complicates it but will make the code work always.
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