Re: FastCode RTL Replacement v0.20 Released!

John O'Harrow wrote:
> "Dennis" <marianndkc@xxxxxxxxxxxxxxx> wrote in message
> news:434a95bc@xxxxxxxxxxxxxxxxxxxxxxxxx
>> Hi John
>>
>> Does this involve a function pointer and adds one level of
>> indirection?
>
> No, this does not set up a function pointer or add any level of
> indirection. In fact it adds no code whatsover. The compiler simply
> maps one functions call address to another.

Don't know about later versions of Delphi, but in D5 this works, but
generates

call dword ptr [a]
call dword ptr [b]
call dword ptr [c]

which *is* one extra level of indirection, not a direct call to the same
adress. I don't know if it matters at all speedwise (but it is at least one
more memory reference), I'm not that fluent with the X86 instruction set.

--
Anders Isaksson, Sweden
BlockCAD: http://web.telia.com/~u16122508/proglego.htm
Gallery: http://web.telia.com/~u16122508/gallery/index.htm


.

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