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17 Commits

Author SHA1 Message Date
Stephen Williams 4914b734dc Obvious optimizations of vvp_vector8_t handling. 
The vvp_vector8_t constructor and destructor involve memory allocation
so it is best to pass these objects by reference as much as possible.

Also have the islands take more care not to perform resolution if the
inputs aren't really different.

NOTE: This is a port of commit 2f4e5bf5b6
from the "performance" branch, without the resolver scheduling changes.
This was causing test suite variances with pr1820472.v. It looks like
there might be a race in that program anyhow, but for now leave out the
resolver scheduling changes so that the rest of this commit can go in.
 2008-06-12 12:08:02 -07:00
Larry Doolittle d9ac146b8f Spelling fixes 
only comments and documentation
some punctuation and capitalization for good measure
Changelogs are purposefully untouched
 2008-01-29 20:24:24 -08:00
Cary R 7c852aa075 Add cmos/rcmos primitives. 
This patch adds the cmos and rcmos primitives.
 2007-09-06 18:46:22 -07:00
steve fa18d9bc01 Do not propogate until initialized. 2007-06-12 02:25:00 +00:00
steve 7091915b73 Reduce vvp_vector4 copies by using const references. 2005-06-22 00:04:48 +00:00
steve 668781788b Support resistive mos devices. 2005-06-12 15:13:37 +00:00
steve a59f3b1fa6 Implement nmos and pmos devices. 2005-06-12 00:44:49 +00:00
steve 99aff5f10b Remove dead functor code. 2005-04-28 04:59:53 +00:00
steve e4ae832153 Clean up spurious trailing white space. 2004-10-04 01:10:51 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve ec4f8c80d5 Support functor delays for gates and UDP devices. 
(Stephan Boettcher)
 2001-12-06 03:31:24 +00:00
steve fa23dafdae Use functor pointers where vvp_ipoint_t is unneeded. 2001-11-07 03:34:41 +00:00
steve a75326e2e0 Rewrite the functor type to have fewer functor modes, 
and use objects to manage the different types.
 (Stephan Boettcher)
 2001-10-31 04:27:46 +00:00
steve b2f6953259 npmos outputs have 3bit strengths, not 2. 2001-10-24 03:18:52 +00:00
steve 73283768a5 Support rnpmos devices. (Philip Blundell) 2001-10-18 17:30:25 +00:00
steve b61c89c104 npmos devices pass strength. 2001-10-11 18:20:51 +00:00
steve 64ff74df37 Add the PMOS and NMOS functor types. 2001-10-09 02:28:16 +00:00