Commit Graph

59 Commits

Author SHA1 Message Date
Stephen Williams 523de1b69c Handle the abs() function in net context.
In net context we have to create a node that does the abs() function
for us. Elaborate that node and handle it all the way down to vvp.
2008-05-06 20:37:00 -07:00
Cary R e7ea90c812 Explicitly initialize real values to 0.0.
This patch explicitly initializes real values to 0.0. Not doing
this was creating an intermittent time zero value problem.
2008-02-15 15:12:55 -08:00
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
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
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 81a45cdc5f Make vpi_put_value to a real accept an integer value and add diagnostic code.
Modified the code that deals with real variables to accept an integer
value when using vpi_put_value(). Also added some type of diagnostic
message for all switch defaults that have an assert(0) to indicate an
error condition, removed CVS comments and removed a small section of
unreachable code.
2007-08-29 20:02:12 -07:00
steve 17a508047b Better size error details. 2007-01-20 02:09:54 +00:00
steve 06d6ac4b33 Fix/implement signed right shift. 2006-07-30 02:51:35 +00:00
steve e1ce72e245 Support wide divide nodes. 2006-01-03 06:19:31 +00:00
steve bebcc05aab Handle very wide % and / operations using expanded vector2 support. 2005-11-10 13:27:16 +00:00
steve 5ec7dde52f Use iostream instead of stdio. 2005-09-15 22:54:04 +00:00
steve 3ac79c294a Implement real valued signals and arith nodes. 2005-07-06 04:29:25 +00:00
steve 7091915b73 Reduce vvp_vector4 copies by using const references. 2005-06-22 00:04:48 +00:00
steve ca488dff4e Handle LPM shifts. 2005-03-19 06:23:49 +00:00
steve bae8507c90 Implement .arith/mod. 2005-03-12 06:42:28 +00:00
steve 1c5b4881d7 Handle case inequality in netlists. 2005-03-09 05:52:03 +00:00
steve 5fe5d9184d Handle signed divide. 2005-02-19 02:41:23 +00:00
steve 589eb1d315 Implement .arith/div. 2005-02-19 01:32:52 +00:00
steve b48abb2148 Add wide .arith/mult, and vvp_vector2_t vectors. 2005-02-04 05:13:02 +00:00
steve 84b3e8e2dc Get .arith/sub working. 2005-01-30 05:06:49 +00:00
steve a121e703f3 Add vector4 implementation of .arith/mult. 2005-01-28 05:34:25 +00:00
steve 6a23f16860 .cmp/x supports signed magnitude compare. 2005-01-22 17:36:15 +00:00
steve 6c5e840617 Implement vectored CMP_EQ and NE 2005-01-22 16:21:11 +00:00
steve b86fdd6bbc Implement the .cmp/eeq LPM node. 2005-01-22 01:06:20 +00:00
steve 1c3668ea7f Reimplement comparators as vvp_vector4_t nodes. 2005-01-16 04:19:08 +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 e4ae832153 Clean up spurious trailing white space. 2004-10-04 01:10:51 +00:00
steve 6d40326a2f Fix LPM GE to match LPM GT behavior. 2004-09-22 16:44:07 +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 d6420f9e0c Fix arithmetic operators in 64bit processors. 2003-08-01 00:58:34 +00:00
steve 2c1e36ae9a Add signed versions of .cmp/gt/ge 2003-04-11 05:15:38 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve 68f1316eba Fix uninitialized memory accesses. 2002-05-07 04:15:43 +00:00
steve dd79885f6d Add structural modulus support down to vvp. 2002-01-03 04:19:01 +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 cc5ddc0b6b MacOSX 10.1 updates. 2001-11-04 05:03:21 +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 96a50d635d Minor rework of summation carry propagation (Stephan Boettcher) 2001-10-27 03:22:26 +00:00
steve 4bb1bd4315 Get Division error into the division method! 2001-10-16 03:10:20 +00:00
steve 0164ad78be Catch division by zero in .arith/div. 2001-10-16 03:06:18 +00:00
steve 36e1eab3f4 Add arith/div object. 2001-10-16 02:47:37 +00:00
steve 2fcab15704 Forgot to propagate carry. 2001-10-14 17:36:18 +00:00
steve cfbad49d33 Very wide multiplication (Anthony Bybell) 2001-10-14 16:36:43 +00:00
steve 15a952a143 Remove width restriction on subtraction. 2001-07-13 00:38:57 +00:00
steve da828a218f Add support for REadOnlySync and monitors. 2001-07-11 02:27:21 +00:00