Commit Graph

160 Commits

Author SHA1 Message Date
steve b734ecf02f Macintosh compilers do not support ident. 2000-02-23 02:56:53 +00:00
steve e77bcf6910 Include some block matching from Larry. 2000-02-13 04:35:43 +00:00
steve aa8908c52f Multiplication all the way to simulation. 2000-01-13 03:35:35 +00:00
steve fac3bde2c8 Elaborate parameters afer binding of overrides. 2000-01-10 01:35:23 +00:00
steve e6820ed169 Handle synthesis of concatenation. 2000-01-01 06:18:00 +00:00
steve b6d1bb1fa7 Propogate constant 0 in low bits of adders. 1999-12-30 04:19:12 +00:00
steve 4de8ba489d Rewrite the cprop functor to use the functor_t interface. 1999-12-17 06:18:15 +00:00
steve 65ae92859c NetConst can now hold wide constants. 1999-12-17 03:38:46 +00:00
steve d54cc14ca2 Simulate carry output on adders. 1999-12-16 02:42:14 +00:00
steve 76655ce2bb Allow memories without indices in expressions. 1999-12-12 06:03:14 +00:00
steve 4a6d3a5104 Fix const/non-const errors. 1999-12-09 06:00:00 +00:00
steve 09de918198 Generate XNF RAMS from synthesized memories. 1999-12-05 19:30:42 +00:00
steve 3e2bb85f58 Synthesize LPM_RAM_DQ for writes into memories. 1999-12-05 02:24:08 +00:00
steve b30b695ff0 Redo synth to use match_proc_t scanner. 1999-12-01 06:06:16 +00:00
steve e96e8c62be NetESignal object no longer need to be NetNode
objects. Let them keep a pointer to NetNet objects.
1999-11-28 23:42:02 +00:00
steve 4cfa3e4047 Support the creation of scopes. 1999-11-27 19:07:57 +00:00
steve 26288eeeb4 Detect and list scope names. 1999-11-24 04:01:58 +00:00
steve 4cfa715092 Memory name lookup handles scopes. 1999-11-21 17:35:37 +00:00
steve a81dcd7955 Support memories in continuous assignments. 1999-11-21 00:13:08 +00:00
steve fae40cf380 handle duplicate connect to a nexus. 1999-11-19 05:02:37 +00:00
steve 8b81d6e416 Detect flip-flops connected to opads and turn
them into OUTFF devices. Inprove support for
 the XNF-LCA attribute in the process.
1999-11-19 03:02:25 +00:00
steve 9d6392fda9 Turn NetTmp objects into normal local NetNet objects,
and add the nodangle functor to clean up the local
 symbols generated by elaboration and other steps.
1999-11-18 03:52:19 +00:00
steve 513ade9b95 Support combinatorial comparators. 1999-11-14 23:43:45 +00:00
steve 1624afe1ba Add support for the LPM_CLSHIFT device. 1999-11-14 20:24:28 +00:00
steve 2cce0ce238 Patch to synthesize LPM_ADD_SUB from expressions,
Thanks to Larry Doolittle. Also handle constants
 in expressions.

 Synthesize adders in XNF, based on a patch from
 Larry. Accept synthesis of constants from Larry
 as is.
1999-11-05 04:40:40 +00:00
steve cb5fc54b5e Patch to synthesize unary ~ and the ternary operator.
Thanks to Larry Doolittle <LRDoolittle@lbl.gov>.

 Add the LPM_MUX device, and integrate it with the
 ternary synthesis from Larry. Replace the lpm_mux
 generator in t-xnf.cc to use XNF EQU devices to
 put muxs into function units.

 Rewrite elaborate_net for the PETernary class to
 also use the LPM_MUX device.
1999-11-04 03:53:26 +00:00
steve 50e47c4173 Elaborate combinational UDP devices. 1999-11-04 01:12:41 +00:00
steve b66e7b1713 Add the synthesize method to NetExpr to handle
synthesis of expressions, and use that method
 to improve r-value handling of LPM_FF synthesis.

 Modify the XNF target to handle LPM_FF objects.
1999-11-02 04:55:34 +00:00
steve 89881adece Add the synth functor to do generic synthesis
and add the LPM_FF device to handle rows of
 flip-flops.
1999-11-01 02:07:40 +00:00
steve 71ecf8c143 Add to netlist links pin name and instance number,
and arrange in vvm for pin connections by name
 and instance number.
1999-10-31 04:11:27 +00:00
steve 19b8615363 Support evaluating + operator at compile time. 1999-10-10 23:29:37 +00:00
steve 70a1236626 Structural case equals device. 1999-10-10 01:59:54 +00:00
steve f949f96df1 Add non-const bit select in l-value of assignment. 1999-10-07 05:25:33 +00:00
steve 1d215998b2 Move the rvalue into NetAssign_ common code. 1999-10-06 05:06:16 +00:00
steve efa5222c66 Handle mutual reference of tasks by elaborating
task definitions in two passes, like functions.
1999-09-30 21:28:34 +00:00
steve c63a3acf93 Elaborate ~^ and ~| operators. 1999-09-30 02:43:01 +00:00
steve a64a33e65a Full case support 1999-09-29 18:36:02 +00:00
steve 900949ab56 Get the bit widths of unary operators that return one bit. 1999-09-28 03:11:29 +00:00
steve bb38653654 Parse system function calls. 1999-09-25 02:57:29 +00:00
steve 1a21d2fe9d Support shift operators. 1999-09-23 03:56:57 +00:00
steve 1c41f8ebd2 Move set_width methods into a single file,
Add the NetEBLogic class for logic expressions,
 Fix error setting with of && in if statements.
1999-09-23 00:21:54 +00:00
steve 0955058fbe Catch parallel blocks in vvm emit. 1999-09-22 16:57:23 +00:00
steve 349f9ae302 Support parameters that reference other paramters. 1999-09-21 00:13:40 +00:00
steve 3a5e55b229 Elaborate parameters in phases. 1999-09-20 02:21:10 +00:00
steve dab04c221d Detect constant lessthen-equal expressions. 1999-09-18 01:53:08 +00:00
steve 4594ac1c2c elaborate concatenation repeats. 1999-09-16 04:18:15 +00:00
steve b04148b754 Elaborate non-blocking assignment to memories. 1999-09-15 01:55:06 +00:00
steve 7a211b9136 Clarify msb/lsb in context of netlist. Properly
handle part selects in lval and rval of expressions,
 and document where the least significant bit goes
 in NetNet objects.
1999-09-13 03:10:59 +00:00
steve 1c238f1948 Support ternary and <= operators in vvm. 1999-09-11 04:43:17 +00:00
steve d6fbc30cd5 Allow assign to not match rvalue width. 1999-09-08 04:05:30 +00:00
steve 41a1c6bb02 elaborate the binary plus operator. 1999-09-03 04:28:38 +00:00
steve 9f7eb4a935 Handle recursive functions and arbitrary function
references to other functions, properly pass
 function parameters and save function results.
1999-09-01 20:46:19 +00:00
steve e69345b9fe Elaborate and emit to vvm procedural functions. 1999-08-31 22:38:29 +00:00
steve 23acca48ff elaborate some aspects of functions. 1999-08-25 22:22:41 +00:00
steve 031d91f813 Fixup spelling and some error messages. <LRDoolittle@lbl.gov> 1999-08-18 04:00:02 +00:00
steve c33b0c2262 Handle scope of parameters. 1999-08-06 04:05:28 +00:00
steve 444c83b19a set width of procedural r-values when then
l-value is a memory word.
1999-08-01 21:48:11 +00:00
steve 71d35f32b2 Parse and elaborate rise/fall/decay times
for gates, and handle the rules for partial
 lists of times.
1999-08-01 16:34:50 +00:00
steve d2f77defe6 move binary operators to derived classes. 1999-07-31 03:16:54 +00:00
steve 93a77a2efd Elaborate task input ports. 1999-07-24 02:11:19 +00:00
steve 563ec1bb81 Add support for CE input to XNF DFF, and do
complete cleanup of replaced design nodes.
1999-07-18 21:17:50 +00:00
steve 7d876f7735 xnfsyn generates DFF objects for XNF output, and
properly rewrites the Design netlist in the process.
1999-07-18 05:52:46 +00:00
steve 9754507eb0 Add the functor interface for functor transforms. 1999-07-17 22:01:13 +00:00
steve a5921ceae8 netlist support for ternary operator. 1999-07-17 19:50:59 +00:00
steve 13cd13d9d5 part select in expressions. 1999-07-17 03:08:31 +00:00
steve b155202dd2 set_width for NetESubSignal. 1999-07-16 04:33:41 +00:00
steve e58844f1be Emit vvm for user defined tasks. 1999-07-07 04:20:57 +00:00
steve 3ff6912bdd Elaborate user defined tasks. 1999-07-03 02:12:51 +00:00
steve 11b2b1740a Handle expression widths for EEE and NEE operators,
add named blocks and scope handling,
 add registers declared in named blocks.
1999-06-24 04:24:18 +00:00
steve 853ad247a1 Elaborate and supprort to vvm the forever
and repeat statements.
1999-06-19 21:06:16 +00:00
steve 740c63291a l-value part select for procedural assignments. 1999-06-13 23:51:16 +00:00
steve 0d210c90e5 More unary operators. 1999-06-13 17:30:23 +00:00
steve 6a823cde59 Unify the NetAssign constructors a bit. 1999-06-13 16:30:06 +00:00
steve 1464851e0e Add support for procedural concatenation expression. 1999-06-09 03:00:05 +00:00
steve 7605a7b1f0 Add parse and elaboration of non-blocking assignments,
Replace list<PCase::Item*> with an svector version,
 Add integer support.
1999-06-06 20:45:38 +00:00
steve caae00f1fd Compile time evalutation of constant expressions. 1999-06-03 05:16:25 +00:00
steve f3a91a10b3 Line information with nets. 1999-06-02 15:38:46 +00:00
steve 982cce6086 Exressions are trees that can duplicate, and not DAGS. 1999-05-30 01:11:46 +00:00
steve 5ef3970714 Handle expression bit widths with non-fatal errors. 1999-05-27 04:13:08 +00:00
steve 10ffaeda90 Redo constant expression detection to happen
after parsing.

 Parse more operators and expressions.
1999-05-16 05:08:42 +00:00
steve 295306aad5 emit NetAssignMem objects in vvm target. 1999-05-12 04:03:19 +00:00
steve 5de9b7c9f1 Parse and elaborate the concatenate operator
in structural contexts, Replace vector<PExpr*>
 and list<PExpr*> with svector<PExpr*>, evaluate
 constant expressions with parameters, handle
 memories as lvalues.

 Parse task declarations, integer types.
1999-05-10 00:16:57 +00:00
steve 5d00f17448 Handle wide events, such as @(a) where a has
many bits in it.

 Add to vvm the binary ^ and unary & operators.

 Dump events a bit more completely.
1999-05-01 20:43:55 +00:00
steve 41f9a84a4b Handle much more complex event expressions. 1999-05-01 02:57:52 +00:00
steve 4b73655537 Generate SubSignal refrences in vvm. 1999-04-25 22:52:32 +00:00
steve 09cfbc6240 Core handles subsignal expressions. 1999-04-25 00:44:10 +00:00
steve d3350c9b27 Add to vvm proceedural memory references. 1999-04-22 04:56:58 +00:00
steve 5895d3c98d Add memories to the parse and elaboration phases. 1999-04-19 01:59:36 +00:00
steve b7f833dd71 Support more operators, especially logical. 1999-03-15 02:43:32 +00:00
steve 13a6f05463 Prevent the duplicate allocation of ESignal objects. 1999-03-01 03:27:53 +00:00
steve e2a37a8ccd Add support for module parameters. 1999-02-21 17:01:57 +00:00
steve e5f5f41515 Elaborate gate ranges. 1999-02-15 02:06:15 +00:00
steve 30a3953c85 Turn the NetESignal into a NetNode so
that it can connect to the netlist.
 Implement the case statement.
 Convince t-vvm to output code for
 the case statement.
1999-02-08 02:49:56 +00:00
steve 8bdd381cdf Parse and elaborate the Verilog CASE statement. 1999-02-03 04:20:11 +00:00
steve a7ad8985ac Carry some line info to the netlist,
Dump line numbers for processes.
 Elaborate prints errors about port vector
 width mismatch
 Emit better handles null statements.
1999-02-01 00:26:48 +00:00
steve 63a8b4abe2 Function to calculate wire initial value. 1998-12-20 02:05:41 +00:00
steve 2c1df3e6f7 Parse more UDP input edge descriptions. 1998-12-18 05:16:25 +00:00
steve 4e2c0036aa VVM support for small sequential UDP objects. 1998-12-17 23:54:58 +00:00
steve 10b345bd16 Fully elaborate Sequential UDP behavior. 1998-12-14 02:01:34 +00:00
steve 9a73433759 Generate OBUF or IBUF attributes (and the gates
to garry them) where a wire is a pad. This involved
 figuring out enough of the netlist to know when such
 was needed, and to generate new gates and signales
 to handle what's missing.
1998-12-07 04:53:16 +00:00