Hi all,

compliments of the season

I'm converting some C to dsPIC assembly and need a little help,
as I know only a bit of C. How it's spelled for example

In the first part of the example below, it appears to be a simple
magnitude test. 'if diff is greater or equal to 0, byte =3D 0. If diff
is less than 0 then set byte,3 and negate diff'

***
if(diff >=3D 0)
     byte =3D 0;
else

{
     byte =3D 8;
     diff =3D - diff;
}
***

This bit here is where I think I'm stuck

Without any explicit 'elses', does this code execute each 'if', with
the parentheses being the 'elses' ? eg if 'if(diff >=3D tempstep)' is false=
,
then program flow jumps to tempstep >>=3D 1;shift #1

if(diff >=3D tempstep)
{
     byte |=3D 4;
     diff -=3D tempstep;
}

tempstep >>=3D 1;shift #1

if(diff >=3D tempstep)
{
     byte |=3D 2;
     diff -=3D tempstep;
}

tempstep >>=3D 1;shift #2

if(diff >=3D tempstep)
     byte |=3D 1;

diffq =3D step >> 3;

My interpretation -

if diff >=3D tempstep then (set byte,3 ,diff =3D diff - tempstep, rshft=20
tempstep) else just rshft tempstep
if diff >=3D tempstep then (set byte,2 ,diff =3D diff - tempstep, rshft=20
tempstep) else just rshft tempstep
if diff >=3D tempstep then (set byte,1 ,diffq =3D step/8) else just diffq =
=3D=20
step/8

Correct ?

Joe=20

--=20
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