Commit Graph

79 Commits

Author SHA1 Message Date
Cary R 208c6a349d Add <> to general T_SYMBOL RE and move it after the special cases.
This patch add (I believe back in) the < and > characters to the
general T_SYMBOL regular expression. The match was also moved after
the special T_SYMBOL cases so that flex would match them correctly.
Flex matching rules are longest or if a tie the first.
2008-04-04 21:59:13 -07:00
Cary R 12f8af645f Add support for real parameters in vvp.
vvp did not have the ability to handle real parameters.
This patch fixes that omission. Parameters are only used
by vpi calls to get compile time information.
2008-03-26 18:04:57 -07:00
Cary R 331faa2217 Add signed bit based power to continuous assignments.
This patch adds the power operator for signed bit based values
in a continuous assignment. It also fixes a few other power
expression width problems. The expression width is still not
calculated correctly, since the correct method can produce huge
possible bit widths. The result is currently limited to the width
of the native long. This is because lround() is used to convert
from a double to an integer. A check in the code generator protects
the runtime from this limitation.
2008-02-11 20:06:41 -08:00
Cary R 85229a6cdc Add unsigned bit based power to continuous assignments.
This patch adds the power operator for unsigned bit based values
in a continuous assignment. It also refactors the power code for
normal expressions and continuous assignments.
2008-02-06 14:38:16 -08:00
Cary R f049426f25 Add support for real % in a continuous assignment.
This patch adds conditional support (2001X) for the real modulus
operator in a continuous assignment.
2008-01-31 16:56:11 -08:00
Cary R 5e8a1bd8cc Add power operator (**) for real values in a continuous assignment.
This patch adds the power operator for real values in a continuous
assignment.
2008-01-31 16:48:52 -08:00
Stephen Williams b6b7d704b2 Clean up lexing of net literals.
The matching of net literals (i.e. Cx<> and T<> symbols) should not get
in the way of properly matching other symbols.
2008-01-21 17:52:40 -08:00
Stephen Williams 32d3e5ac46 Better formatting of Cr<> label for real valued drivers.
Rework the encoding of a real value in the Cr<> label to be similar to
the format used by the %loadi/wr instruction. This mantissa-expoment
format better carries all the bits of the desired real value with
plenty of fidelity and range.
2008-01-19 16:27:09 -08:00
Cary R 1ff31db2cc Add real comparisons in continuous assignments.
This patch adds real comparisons in continuous assignments.
It also converts bit based constants to real values when needed
by the comparisons.
2008-01-15 19:48:26 -08:00
Stephen Williams bafd705478 Allow negative values for realtime net constants.
The lexor didn't allow for negative values for realtime net
constants. The minus sign was not accepted as a character in
the identifier string.
2008-01-06 18:57:16 -08:00
Larry Doolittle 17cc661336 Squelch useless flex-induced warning messages
tested in a gcc-4.2.2 flex-2.5.33 environment
2008-01-04 15:54:03 -08:00
Cary R e01e7b1280 Add arith/mult.r and arith/sum.r
This patch adds the missing real multiplication and summation operators
and the code to generate them when needed.
2008-01-04 15:41:01 -08:00
Cary R 77061faa5c Add vpiFile and vpiLineNo for system functions.
Add the vpiFile and vpiLineNo properties to system functions.
Most other objects have stubs that return "N/A"/0. Interactive
functions (called from the debugger) use <interactive> for the
file name.
2008-01-01 17:27:03 -08:00
steve 5047a3add3 variable arrays generated without writing a record for each word. 2007-04-10 01:26:15 +00:00
steve 91d84e7dc7 Major rework of array handling. Memories are replaced with the
more general concept of arrays. The NetMemory and NetEMemory
 classes are removed from the ivl core program, and the IVL_LPM_RAM
 lpm type is removed from the ivl_target API.
2007-01-16 05:44:14 +00:00
steve 2ac30824ac Fix spurious event from net8 that is forced. 2006-11-22 06:10:05 +00:00
steve 0edb5a7547 Basic support for specify timing. 2006-09-23 04:57:19 +00:00
steve 06d6ac4b33 Fix/implement signed right shift. 2006-07-30 02:51:35 +00:00
steve 80f30be9d0 Add support for system functions in continuous assignments. 2006-06-18 04:15:50 +00:00
steve f0e114d59f Lexor os never interactive. 2006-05-17 04:15:12 +00:00
steve 6f46d12e07 Add support for logic parameters. 2006-03-08 05:29:42 +00:00
steve b7861fa6e8 Require explicit delay node from source. 2006-01-02 05:32:06 +00:00
steve 35951510c5 Put vec8 and vec4 nets into seperate net classes. 2005-11-25 17:55:26 +00:00
steve 560c5a2584 Add alias nodes. 2005-10-12 17:23:15 +00:00
steve 3ac79c294a Implement real valued signals and arith nodes. 2005-07-06 04:29:25 +00:00
steve b6fd4f610b Add a sign-extension node. 2005-05-24 01:43:27 +00:00
steve 7dd0d255a6 Add support for variable part select. 2005-05-08 23:40:14 +00:00
steve 99aff5f10b Remove dead functor code. 2005-04-28 04:59:53 +00:00
steve f884652c19 Add DFF nodes. 2005-04-24 20:07:25 +00:00
steve 1c5b4881d7 Handle case inequality in netlists. 2005-03-09 05:52:03 +00:00
steve ca1bbc79a3 Add .repeat functor and BIFIF functors. 2005-02-07 22:42:42 +00:00
steve 018014368b Add support for reduction logic gates. 2005-02-03 04:55:13 +00:00
steve b86fdd6bbc Implement the .cmp/eeq LPM node. 2005-01-22 01:06:20 +00:00
steve 9735b0e8b3 Add the .part/pv node and related functionality. 2005-01-09 20:11:15 +00:00
steve 1674d692b7 Add the part concatenation node (.concat).
Add a vvp_event_anyedge class to handle the special
 case of .event statements of edge type. This also
 frees the posedge/negedge types to handle all 4 inputs.

 Implement table functor recv_vec4 method to receive
 and process vectors.
2004-12-29 23:45:13 +00:00
steve 65e9b6be12 Rework of internals to carry vectors through nexus instead
of single bits. Make the ivl, tgt-vvp and vvp initial changes
 down this path.
2004-12-11 02:31:25 +00:00
steve 57b8ca191f Add signed LPM divide. 2004-06-30 02:15:57 +00:00
steve 35619771dd Add structural equality compare nodes. 2004-06-16 16:33:25 +00:00
steve 14150d6fba ifdef idents correctly. 2003-08-26 16:26:01 +00:00
steve 2c1e36ae9a Add signed versions of .cmp/gt/ge 2003-04-11 05:15:38 +00:00
steve 654ad4c97e Direct support for string parameters. 2003-03-10 23:37:07 +00:00
steve b726395d1e Spelling fixes. 2003-02-09 23:33:26 +00:00
steve 04ada23119 Support in various contexts the $realtime
system task.
2003-01-27 00:14:37 +00:00
steve 9a5a00f836 Add thread word array, and add the instructions,
%add/wr, %cmp/wr, %load/wr, %mul/wr and %set/wr.
2003-01-25 23:48:05 +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 f4a4ee00d0 Add support for special integer vectors. 2002-06-21 04:58:55 +00:00
steve a18662ed13 Allow signed constant vectors for call_vpi parameters. 2002-04-14 03:53:20 +00:00
steve de252965ac Add the .ufunc statement. 2002-03-18 00:19:34 +00:00
steve efa5338e3b out-of-memory asserts. 2002-03-01 05:42:50 +00:00
steve 6dcf880482 carriage return is white space. 2002-02-27 05:46:33 +00:00