I'm really sorry to ask such a dumb question, but this one point is =
heart of why I have yet to comprehend this problem:=20

What is a latch, or output latch?


>=20
> > What is the read-write-mod bug you speak of?
>=20
> What Lawrence said
>=20
> http://www.piclist.com/techref/readmodwrite.htm
>=20
> A pretty nasty real-life example that kept me occupied for a day
>=20
> http://home.clear.net.nz/pages/joecolquitt/sx_pins2.html
>=20
> (setb =3D bsf,  clrb =3D bcf). Note how the problem simply
> disappears
> when NOPs or shadow regs are used
>=20

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=20

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