On ARM, it turns out that comparisons with NaN can be made to do the
right thing with no code penalty, by a more careful selection of
condition code values in the subsequent conditional branch. The
meaning of the CC bits in the PSR is subtly different when they've
been copied from the floating point status register.
Suggested patch is 5c-nan-cmp (works on both vfp and emulated arm7500).
the changeset r541ead66e8af:
"libdraw: make ebread() return buffer immidiately if available"
makes mouse sluggish when the program cant keep up as mouse
events queue up. this more or less restores the original
behaviour but only for mouse events.
when the screen is resized, we scale the windows to
match the new screen size. when the screen is too
small tho, the scaled down window rect might result
in a bad window rect. before, we kept the window
in its original position and size making it possible
to move a window out of the screen by resizing its
outer rio.
now, if we get a bad rectangle after scaling, we
just tralslate position to the new scaled r.min
point but preserve its orginal size. this keeps
the window always accessible.
we loaded APMDSEG instead of APMDSEL into DS. (ouch!)
its not really clear why we loaded DS (wong) in the
first place as bios is supposed to do this. for the
machines where this worked it could have no effect
anyway because it was wrong so removing the DS load
and just zero all segment registers.
we cannot do:
cmdpid = rfork(... RFMEM);
because cmdpid is a global variable in the data segment
and hence shared between parent and child process. use a
temporary variable on the stack.
- TLSconn structure on stack but not initialized (zeroed)
- original filedescriptor double closed in error case
- original filedescriptor leaked in success case
- leaked TLSconn.sessionID and TLSconn.cert
- clarify in pushtls(2) and pushssl(2)
new io interface was added. user defines amlmapio() and amlunmapio() functions
that will fill out Amlio structure with function pointers to read/write
routines for a particular region.
amlnew() function added allowing the creation of aml objects like buffers
or packages. these can be passed to amleval() with b, p or * format.
amltake()/amldrop() exclude an aml object from garbage collection.
on load, names are not always resolvable until the whole table is loaded.
for this, we create n objects that are just name strings. after load, we
recursively traverse the namespace and resolve them (see fixnames()).
the FindSetLeftBit and FindSetRightBit opcodes got implemened.
the difficulty is freeing items while parsing because items might already
be linked into various linked lists like in docinfo.images or form.fiels.
so we link images, tables and formfields to the docinfo as the final step
of getitems() pass using the new recursive function linkitems(). as only
reachable items get linked theres no danger of dangeling pointers.
