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Belgian Amiga Club - ADF Collection
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BS1 part 34.zip
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BS1 part 34
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Mandelvroom 2.0.adf
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1989-06-12
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Math Mode Help Information
These menu items control which data
type is used when generating
pictures. The data type affects two
aspects of two picture generation:
speed of calculation and accuracy of
calculation.
Unless you have a 68020/68881 based
Amiga, generally you will trade
speed for accuracy. You have three
choices for Math Modes:
Int68000 - fastest, least accurate
FFP - middle at speed and accuracy
IEEE - slowest and most accurate
You can change a project's math mode
at any time, but the change will not
have effect until the next time you
start generating the project.
Typically, you would start by using
Int68000. You would zoom in as far
as you can go, until the picture
starts to look blocky or "noisy".
At this point, you will have to
switch to FFP mode. You will be
able to zoom in only a few more
times before you will have to switch
to IEEE. Once you are in IEEE mode,
any picture will be VERY slow to
generate.
For those of you lucky enough to
have a 68020/68881 based Amiga, you
have two more Math Modes to choose
from:
Int68020 - fastest, least accurate
68881 - slower than Int68020 but
as accurate as IEEE
Int68020 has the same accuracy as
Int68000 but uses more efficient
68020 machine instructions and is
therefore faster.
68881 Math Mode uses the 68881 math
coprocessor to calculate pictures.
This is not as fast as the 68020,
but is much more accurate.