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88 Commits

Author SHA1 Message Date
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