Sergei Gorelkin schreef:
willem wrote:
1 IF we take the mandelbrot paramet N = 5000 then Calculatepoint will
be called 25000000 times.
andCalculatePoint pushes x*Step - 1.5,Cy on the stack.
then it executes the statements of CalculatePoint
and finally it pops a boolean from the stack.
It does not do any push's and pop's, you may compile into assembler and
see it yourself. In particular mandelbrot program, data is passed to
CalculatePoint via global variables.
In general, FPC passes up to 3 parameters into functions by using
registers, and simple (boolean, integer and alike) function return
values are also passed in registers.
As a matter of fact the version in fpc's svn, not yet submitted uses an
inlined CalculatePoint.
Vincent
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