commit, mostly relating to the scale of values in the ".nodes" file
produced by ext2sim. Making this file CIF syntax seemed unnecessary,
so I removed the CIF syntax and scaling. "extresist" can now produce
an apparently valid output on a standard cell layout. Even with the
change, the extresist output is still only pseudo-hierarchical, so
this does not preclude the need for eliminating the .sim format file
in favor of the .ext file, but it provides a working intermediate
form.
at a time, and when it runs out of space, it pushes the stack.
This should speed up the connectivity routine somewhat, as it no
longer has to copy memory when expanding the list size, and it no
longer has limit at the integer boundary for memory allocation.
not crash if too many unprocessed areas get queued up. Also modified
it to prune entries that match one of the last five entries created
before searching the current tile. However, it is not clear that
that makes any significant difference to the run time, and it needs
to be analyzed vs. the number of entries to check against.
The previous behavior was to generate hierarchical names for all
labels when copying contents of subcells. This is "safe" for
copying selections without accidentally shorting things through
labeling, but it can make a mess of the selection. Options are
now "select do labels" for the existing behavior, "select no labels"
to not show any labels, and "select simple labels" to show only the
root name of labels in subcells.
could cause serious errors on systems that do not auto-zero allocated
memory. Also: Fixed an error introduced by a recent commit to allocate
character memory for efReadLine() which frees the memory before reading
a .res.ext file, causing a crash when using "ext2spice" with the
"extresist on" option.
not copy labels; not copying labels speeds up the antenna checks
(which don't need labels) greatly. Also fixed several numerical
overflow problems in the antenna checks, which resulted in false
positive errors, as well as nonsensical results.
magic crashed when the conSrArea array exceeded the size of a 32-bit
int during the antenna rule check. Should be good for another four
orders of magnitude.
Conflicts:
VERSION
database/DBcellsrch.c
database/DBconnect.c
extract/ExtInter.c
lef/Depend
utils/Depend
Updated bplane branch with all changes to master since the bplane branch
was last modified.
down in the hierarchy when selecting a region or net, but with a
(hopefully very useful) twist: To avoid the problem of ambiguous
labels in subcells, the subcell name hierarchy is generated in
the same way as is done when flattening a cell, with the instance
name prepended. For example, when selecting a net in a standard
cell design, a terminal would highlight the name "OR2X1_1/B"
instead of just "B".
to copy and search on a label that already exists in the flattened,
copied database. Otherwise multiple labels on a single net can cause
the search to go into an infinite loop, repeatedly copying and erasing
the same label over and over again.
through labels with the same text (particularly necessary for
abstract views, since the real connectivity may not be represented).
The original implementation could generate very deep subroutine call
stacks and lead to stack overflow. The new implementation performs
the same check but without the deep nesting.
labels if they are in the top-level cell of the connection search.
Otherwise, this slows the connection search way down for nets with
lots of internal labels, and can also have potentially bad consequences
if, for example, the connected network is copied to another position,
and carries all the flattened and non-hierarchically-named labels with
it.
development had been halted since it was first created back in April.
Version 8.2 is now the official development version, with the first
development push to create a Cairo graphics interface.
Tim Edwards