Commit Graph

144 Commits

Author SHA1 Message Date
Cary R 34661e9af5 V0.8: Rework the NetLatch and back end code.
This patch reworks the NetLatch class to better match the NetFF class
(e.g. it adds a place for the async controls and value, adds a dump
routine, etc.) and moves it into the normal netlist.{h,cc} files. It
removes the unused Aload and Sload routines, etc. from the NetFF class.
It switches the latch to use the existing ff object to pass information
to the target and uses the existing FF routines as applicable.

ivl_lpm_async_clr()
ivl_lpm_async_set()
ivl_lpm_aset_value()
ivl_lpm_clk() for the gate
ivl_lpm_data()
ivl_lpm_q()

It adds support for generating a latch UDP just like is done for the
D flip-flop in the tgt-vvp code generator and fixes a bug in the
generation of the clear signal when both the Aclr and Aset signals
clear the register.
2011-01-12 16:19:32 -08:00
Cary R ae14a58bff V0.8: Remove deprecated #ident and fix some other compile warnings
This patch removes #ident since it is deprecated in recent gcc
versions. It also removes all the CVS comments and fixes a few
other compilation warnings. There are still a few compilation
warnings, but this takes care of most of them. Fixing the rest
will require a bit more thought.
2011-01-12 15:49:03 -08:00
Alan M. Feldstein bd9923dbbd latch synthesis fix: Connect gate pin in netlist. 2010-11-25 09:21:46 -08:00
Stephen Williams d49e44594b Fix reported build errors with gcc 4.3
Add missing includes to cstring et al.
2008-01-21 18:04:30 -08:00
Alan M. Feldstein 5cae6b64af Fixed dangling latch gate inputs.
With -tfnf, observed
(latch  43020 1 43022 43021)
in the output file. That 3rd number is the ID of the gate nexus. However, it was only found as
(dangle 43022)
The purpose of this patch is to fix that in the common code.
2007-10-24 16:16:23 -07:00
steve 0e3768f829 Handle statement output override better in blocks. 2006-07-23 19:42:33 +00:00
steve f02b2c9d7a Fix handling of exploded memories with partial or missing resets. 2006-04-16 19:26:37 +00:00
steve 312d09dc1d Handle asynchronous demux/bit replacements. 2006-03-26 23:09:21 +00:00
steve b8bc531f05 Fix the memsynth1 case. 2006-03-12 07:34:16 +00:00
steve 79cb8c883a Add support for negedge FFs by using attributes. 2006-02-25 05:03:28 +00:00
steve 7527c466ed Handle synthesis of FF vectors with l-value decoder. 2006-02-19 00:11:31 +00:00
steve eb0a78e9ce When mux has wide select but sparse choices, use 1hot translation. 2006-01-21 21:42:31 +00:00
steve 327c897d7e Spellig fixes. 2005-02-19 16:39:30 +00:00
steve e4ae832153 Clean up spurious trailing white space. 2004-10-04 01:10:51 +00:00
steve 3dbc07f34d Implement signed divide and signed right shift in nets. 2004-06-30 02:16:26 +00:00
steve 177b6ffb6a Addtrbute keys are perm_strings. 2004-02-20 18:53:33 +00:00
steve 1295058e5d parameter keys are per_strings. 2004-02-20 06:22:56 +00:00
steve 536068bdfb Memory and Event names use perm_string. 2004-02-19 06:57:10 +00:00
steve 27af95d402 Use perm_strings for named langiage items. 2004-02-18 17:11:54 +00:00
steve d4525ddc16 Some systems dlsym requires leading _ or not on whim. 2003-12-12 05:43:08 +00:00
steve be0b42f210 Warning about sprintf. 2003-11-26 01:37:38 +00:00
steve 12033d7bd4 Move the DLL= flag to target config files. 2003-11-13 05:55:33 +00:00
steve 43f28b53a3 Design::get_flag returns const char* instead of string. 2003-11-10 20:59:03 +00:00
steve 7521aa83f8 Pass FF synchronous set values to code generator. 2003-09-03 23:33:29 +00:00
steve 0a012c5d90 Fix uninitialized sset member. 2003-08-22 04:14:33 +00:00
steve e561819179 Add synthesis support for synchronous reset. 2003-08-15 02:23:52 +00:00
steve d653a7e88d Add support for triand and trior. 2003-07-30 01:13:28 +00:00
steve 31b1fb4ec4 Watch out for moving nexus_ptr while adding pins to nexus. 2003-07-26 04:06:58 +00:00
steve 77da147629 Fix some enumeration warnings. 2003-07-05 20:42:08 +00:00
steve 21ff80075a Various warnings fixed. 2003-06-24 01:38:02 +00:00
steve bad861dba3 Module attributes make it al the way to ivl_target. 2003-06-23 01:25:44 +00:00
steve 2321df4bfc Remove short int restrictions from vvp opcodes. (part 2) 2003-06-17 21:28:59 +00:00
steve 2356741169 Clear pin pointers if pin is not connected. 2003-05-13 16:30:39 +00:00
steve 3bd08e6212 Allow primitives to hvae unconnected input ports. 2003-05-13 01:56:15 +00:00
steve 5d1d99a89f Handle signed magnitude compare all the
way through to the vvp code generator.
2003-04-11 05:18:08 +00:00
steve d18934d444 Sign extend NetMult inputs if result is signed. 2003-03-29 05:51:25 +00:00
steve 1222153cdf Keep parameter constants for the ivl_target API. 2003-03-10 23:40:53 +00:00
steve 22d392a75c Obsolete the ivl_event_name function. 2003-03-06 01:24:37 +00:00
steve badad63ab4 All NetObj objects have lex_string base names. 2003-03-06 00:28:41 +00:00
steve 486274cfa1 Scope names stored only as basename. 2003-03-03 02:22:41 +00:00
steve e941e7e805 Spelling fixes. 2003-01-30 16:23:07 +00:00
steve 46253ed873 Rework expression parsing and elaboration to
accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
steve c3a1a9514f Assert some task definition sanity. 2003-01-16 21:43:52 +00:00
steve c2070777b2 The $time system task returns the integer time
scaled to the local units. Change the internal
 implementation of vpiSystemTime the $time functions
 to properly account for this. Also add $simtime
 to get the simulation time.
2002-12-21 00:55:57 +00:00
steve a9dfef0f55 Fix the call to FormatMessage under Windows. 2002-11-05 02:12:35 +00:00
steve 0cc8396244 Cast for gcc convenience. 2002-11-03 22:44:19 +00:00
steve 6a1e3f7e27 Slightly more verbose load fail message. 2002-11-03 20:47:23 +00:00
steve 9ce2806710 Fix synth2 handling of aset/aclr signals where
flip-flops are split by begin-end blocks.
2002-10-23 01:45:24 +00:00
steve 166621bcb3 Generate vvp code for asynch set/reset of NetFF. 2002-09-26 03:18:04 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00