0ac36dc5af
Merge branch 'master' of steve-icarus@icarus.com:git/verilog
2008-02-06 18:38:55 -08:00
3a300725de
Output delays for part select nets.
...
Implement net delays for part select devices.
2008-02-06 18:37:42 -08:00
85229a6cdc
Add unsigned bit based power to continuous assignments.
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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
47d1d981d5
Mangle the scope for user functions in a continuous assignment.
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User functions called in a continuous assignment were not getting
their scope mangled. This is needed to handle arrayed instances and
possibly other things.
2008-02-06 14:28:08 -08:00
e82293c981
Add unsigned bit based power support to normal expressions.
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This patch adds bit based power support to normal expressions.
It also pushes the constant unsigned bit based calculation to
the runtime until the bit based method can be copied to the
compiler. Continuous assignments also need to use this type
of calculation.
2008-02-05 15:33:51 -08:00
f049426f25
Add support for real % in a continuous assignment.
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This patch adds conditional support (2001X) for the real modulus
operator in a continuous assignment.
2008-01-31 16:56:11 -08:00
5e8a1bd8cc
Add power operator (**) for real values in a continuous assignment.
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This patch adds the power operator for real values in a continuous
assignment.
2008-01-31 16:48:52 -08:00
4c5481f254
Add delays for shifts, concatenation and replication in a CA.
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This patch add delays in continuous assignments for the shift operators,
concatenations and replications. It also reports an error if the user
attempts to take the modulus of a real value.
This patch uncovers a couple other problems in the system. I am trying
to fix one of them. I will report the other problem shortly.
2008-01-31 16:39:12 -08:00
1609de6ed9
Fix some bit based delays in continuous assignments.
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This patch fixes some of the delays in bit based continuous
assignments (unary -, unary +constants, string constants,
reduction operators and user functions).
Use draw_lpm_output_delay() in all functions that need it.
2008-01-29 20:27:53 -08:00
685095b229
Support delay of user function output
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When used in continuous assignments, user defined functions may have
delayed output. Handle that by generating the proper .delay node when
needed to delay the output of a .ufunc node.
2008-01-28 21:29:03 -08:00
10d25d2b88
Support delays for all operators in a continuous assignments.
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Previously only the logical operators (~, &, |, ^, etc.) supported a
delayed value in a continuous assignment. This patch should extend this
to all operators. An extensive check of real values was done. The same
will be done shortly for bit based nets.
Checks for constructs currently unsupported in continuous assignments
provide a more explicit message (** operator, real user functions,
{!, && and ||} operators with a real argument).
2008-01-21 18:21:31 -08:00
32d3e5ac46
Better formatting of Cr<> label for real valued drivers.
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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
1ff31db2cc
Add real comparisons in continuous assignments.
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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
e01e7b1280
Add arith/mult.r and arith/sum.r
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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
07c6e51a58
Rework ivl_file_table_* interface and fix most vvp/examples.
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Rework the ivl_file_table_* interface to be more generic and easier
to use. Also all the vvp examples except for memory.vvp have been
fixed to run correctly with the current vvp. Someone with a bit more
experience will need to fix memory.vvp.
2008-01-03 14:13:22 -08:00
c866be421e
Add vpiFile and vpiLineNo to .sfunc (system function in cont. assign)
...
This patch add the vpiFile and vpiLineNo properties to system
functions that are called from continuous assignments.
2008-01-01 17:33:08 -08:00
fea1febf54
Generate explicit locals in the vvp target.
...
With this change, local symbols are not emitted in the vvp target,
but are marked as local. When thus marked, the vvp run time does not
offfer any VPI access and the signals (net or var) are effectively
invisible.
2007-12-27 18:34:12 -07:00
58d3d2f265
Better track signals marked local.
2007-12-27 16:47:01 -07:00
9c8b63110d
CMOS is strength aware
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CMOS gates like NMOS and PMOS have a strength aware output.
They were missed when the NMOS and PMOS were fixed. "cmos.v"
will now pass in the test suite.
2007-11-13 19:57:02 -08:00
5c69e243ac
Put modpaths in correct scope.
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Modpaths need to be in the proper scope in order to be available to
vpi functions. The code generator manages that by writing the modpath
records with scope switch functions. Batch the modpath records at the
end of the structural stuff so that the scope switching doesn't cause
trouble.
Also seperate the modpath code into its own source file.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-10-31 21:45:34 -07:00
08028177fe
Correct elaboration of network constants.
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Constant propagation incorrectly elided an entire constant net node
if only the LSB of the driven vector was HiZ. This caused the entire
vector to look like HiZ. Also, the code generator for writing the
constant values missed bits.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-10-05 20:31:51 -07:00
3258b7726b
Pass local scope precision from compiler to vvp/etc.
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This patch adds ivl_scope_time_precision() to the compiler which can
be used to extract the local scope precision. tgt-stub and tgt-vvp
have been modified to use this new function and output a value that
is appropriate. The vvp runtime has been altered to use this new
data which is accessed with the vpip_time_precision_from_handle()
function. vpiTimePrecision uses this function to return the correct
precision.
2007-09-28 15:08:02 -07:00
14c0cfd3b1
bufif and nmos/pmos are strength aware
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The outputs to bufif and nmos/pmos devices are always strength-aware,
so should have their outputs connected to a net8 device.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-09-22 21:53:55 -07:00
7c852aa075
Add cmos/rcmos primitives.
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This patch adds the cmos and rcmos primitives.
2007-09-06 18:46:22 -07:00
88dea0c318
Remove restriction on size of constants
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Constant strings are now formed in dynamically allocated memory
instead of a fixed array.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-06-30 20:27:08 -07:00
ed698deeaa
Add support for collapsed/aliased arrays.
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Arrays of nets that have all their words collapsed together can become
a collapsed array as a whole. Add support for this case in the vvp code
generator and runtime.
2007-06-24 18:17:37 -07:00
ff7625cd9c
nexus vectors of VT_BOOL objects. (ravi@bluespec)
2007-04-12 04:40:37 +00:00
fbc731d19e
Allow nexus aliases to array words.
2007-04-10 03:40:04 +00:00
5047a3add3
variable arrays generated without writing a record for each word.
2007-04-10 01:26:15 +00:00
d883979fd8
Seperate arrayness from word count
2007-04-02 01:12:34 +00:00
611d2c81b3
Spelling fixes from Larry
2007-03-22 16:08:14 +00:00
fc9a90c9e0
Add support for edge sensitive spec paths.
2007-03-02 06:13:22 +00:00
243cf94165
Add support for conditional specify delay paths.
2007-03-01 06:19:38 +00:00
6804732b9e
Spelling fixes (larry doolittle)
2007-02-26 19:49:48 +00:00
f5a7ee0736
Remove dead code related to memories.
2007-01-17 04:39:18 +00:00
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
d6f98599f8
Do not intertangle modpaths due to references to input nets.
2006-11-23 22:42:48 +00:00
64b4e2fa01
Get the .event input from the signal instead of the signal input.
2006-11-22 06:09:08 +00:00
549f226c6e
Modpath is input to net, draw .modpath to account.
2006-10-01 23:51:15 +00:00
0edb5a7547
Basic support for specify timing.
2006-09-23 04:57:19 +00:00
06d6ac4b33
Fix/implement signed right shift.
2006-07-30 02:51:35 +00:00
80f30be9d0
Add support for system functions in continuous assignments.
2006-06-18 04:15:50 +00:00
46d86ad276
Get tail counts right in nested concatenations.
2006-04-22 04:27:36 +00:00
f001d0001a
Add support for generate loops w/ wires and gates.
2006-04-10 00:37:42 +00:00
f4a44df2cc
Support more parameter syntax.
2006-03-18 22:53:38 +00:00
8ff70410ab
Handle multiple part/bi devices connected together.
2006-03-15 05:52:20 +00:00
6f46d12e07
Add support for logic parameters.
2006-03-08 05:29:42 +00:00
58f182a159
Node delays can be more general expressions in structural contexts.
2006-01-02 05:33:19 +00:00
35951510c5
Put vec8 and vec4 nets into seperate net classes.
2005-11-25 17:55:26 +00:00
9c8c541f5d
MUX nodes get inputs from nets, not from net inputs,
...
Detect and draw alias nodes to reduce net size and
handle force confusion.
2005-10-12 17:26:17 +00:00
c75f0a930e
Remove the $ from signal labels. They do not help.
2005-10-11 18:54:10 +00:00
bb3f3c1f46
Remove obsolete vvp_memory_label function.
2005-10-11 18:30:50 +00:00
fb22bcc96b
Remove dead dram_input_from_net and lpm_inputs_a_b
2005-10-10 04:16:13 +00:00
bf8b085159
Clean up compiler warnings.
2005-09-20 18:34:01 +00:00
4a8be3db9c
Implement bi-directional part selects.
2005-08-06 17:58:16 +00:00
b9799cf6ec
Remove NetVariable and ivl_variable_t structures.
2005-07-11 16:56:50 +00:00
75ad90534b
Generalize signals to carry types.
2005-07-07 16:22:49 +00:00
4cc421b3b7
Make functors know their own width.
2005-06-17 03:46:52 +00:00
739a1839ed
Do sign extension of structuran nets.
2005-05-24 01:44:27 +00:00
7dd0d255a6
Add support for variable part select.
2005-05-08 23:40:14 +00:00
365cfedd55
Update DFF support to new data flow.
2005-04-24 23:44:01 +00:00
65c7ec00e7
Rework NetRamDq and IVL_LPM_RAM nodes.
2005-04-06 05:29:08 +00:00
d62661257a
Generate the right coes for unconnected UDP port.
2005-04-04 05:29:53 +00:00
ca488dff4e
Handle LPM shifts.
2005-03-19 06:23:49 +00:00
53da6e9a33
Add support for LPM_UFUNC user defined functions.
2005-03-18 02:56:03 +00:00
1c5b4881d7
Handle case inequality in netlists.
2005-03-09 05:52:03 +00:00
53af2949b4
Generate code for new form of memory ports.
2005-03-09 04:53:40 +00:00
1d7235b4f1
Replace supply nets with wires connected to pullup/down supply devices.
2005-02-13 01:15:07 +00:00
d4eb4d38bc
Implement a-b muxes as vector devices
2005-02-12 22:54:29 +00:00
eca4f4fa97
Draw C4 and C8 constants to account for strength.
2005-02-12 06:25:15 +00:00
1979fca239
Get the C4 width right for undriven nexa.
2005-02-10 04:55:45 +00:00
ee5bb5fcaf
Add the NetRepeat node, and code generator support.
2005-02-08 00:12:36 +00:00
e74127e1fc
Support .concat with arbitrary input counts.
2005-02-04 05:13:57 +00:00
97f83ffbe3
laborate reduction gates into LPM_RED_ nodes.
2005-02-03 04:56:20 +00:00
a4710f375e
LPM_CMP_NE/EQ are vectored devices.
2005-01-22 16:22:13 +00:00
e28636776a
Change case compare from logic to an LPM node.
2005-01-22 01:06:55 +00:00
bf6a5d0f50
Implement LPM_COMPARE nodes as two-input vector functors.
2005-01-16 04:20:32 +00:00
fcaaec0464
More robust input code generation for LPM_ADD.
2005-01-12 05:31:50 +00:00
8c18c9152d
More complete drawing of concat inputs.
2005-01-12 03:16:35 +00:00
399dfe5c44
Handle concatenations with up to 16 inputs.
2005-01-10 01:42:59 +00:00
9e94afe399
Use PartSelect/PV and VP to handle part selects through ports.
2005-01-09 20:16:00 +00:00
83423c978b
Generate code for the .concat functors, from NetConcat objects.
...
Generate C<> constants of correct widths for functor arguments.
2004-12-29 23:52:09 +00:00
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
e4ae832153
Clean up spurious trailing white space.
2004-10-04 01:10:51 +00:00
965d928430
More carefull about eliding bufzs that carry strength.
2004-09-25 21:04:25 +00:00
5e627c9adc
Compile cleanup of C code.
2004-09-10 23:13:05 +00:00
3dbc07f34d
Implement signed divide and signed right shift in nets.
2004-06-30 02:16:26 +00:00
b043445c80
Generate .cmp/eq nodes instead of sea of gates.
2004-06-16 23:33:42 +00:00
59ac435c71
Fix various unsigned compare warnings.
2003-12-19 01:27:10 +00:00
a461a76bd5
Emit .event inputs before the .event statement.
2003-10-09 23:45:03 +00:00
64d795c53a
Preserve variable ranges all the way to the vpi.
2003-08-22 23:14:26 +00:00
d653a7e88d
Add support for triand and trior.
2003-07-30 01:13:28 +00:00
8cfef65bd8
Implement acc_fetch_defname and its infrastructure in vvp.
2003-05-29 02:21:45 +00:00
3bd08e6212
Allow primitives to hvae unconnected input ports.
2003-05-13 01:56:15 +00:00
5d1d99a89f
Handle signed magnitude compare all the
...
way through to the vvp code generator.
2003-04-11 05:18:08 +00:00
f354c43941
Use hash code for scope labels.
2003-03-25 02:15:48 +00:00
8188e8f3bf
Use %p name for all LPM functors.
2003-03-13 06:07:11 +00:00
1222153cdf
Keep parameter constants for the ivl_target API.
2003-03-10 23:40:53 +00:00
0bf901e9bb
Use number for event labels.
2003-03-06 01:17:46 +00:00
17ec5d7891
Use numbers for functor labels.
2003-03-06 00:27:09 +00:00
76a77fdd36
Printed nexus names need not use ivl_nexus_name.
2003-03-03 23:05:49 +00:00
679c9c5bfe
Only give scope basename to .scope directives.
2003-03-03 01:48:41 +00:00
e6eded243e
Eliminate use of ivl_lpm_name function.
2003-02-25 03:40:45 +00:00
46253ed873
Rework expression parsing and elaboration to
...
accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
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
2fafe6866f
Better handling of select width of shifters.
2002-11-21 18:08:09 +00:00
32f1ca6f8b
draw lpm ff with aset_expr taken into account.
2002-10-23 04:39:35 +00:00
166621bcb3
Generate vvp code for asynch set/reset of NetFF.
2002-09-26 03:18:04 +00:00
5d6567cb02
Generate vvp code for structural flip-flops.
2002-09-17 05:37:45 +00:00
52bf4e613f
conditional ident string using autoconfig.
2002-08-12 01:34:58 +00:00
89314d4772
Do not use hierarchical names of memories to
...
generate vvp labels. -tdll target does not
used hierarchical name string to look up the
memory objects in the design.
2002-08-04 18:28:14 +00:00
41f7ecacfc
Eliminate use of ivl_signal_name for signal labels.
2002-08-03 22:30:48 +00:00
15becdaee4
Need driver for sure in assign feedback and other cases.
2002-07-18 02:06:37 +00:00
472f98affe
Generate code for wide muxes.
2002-07-08 04:04:07 +00:00
301040a67a
Avoid emitting to vvp local net symbols.
2002-07-05 21:26:17 +00:00
5eca5d9948
Carry integerness throughout the compilation.
2002-06-21 04:59:35 +00:00
4a7e14786c
Tail size was wrong.
2002-04-23 05:18:05 +00:00
1ddb736f4c
Handle bitsel muxes of odd shaped outputs.
2002-04-23 05:06:31 +00:00
9ef49379f4
Add support for non-constant bit select.
2002-04-23 03:53:59 +00:00
96213fe0ac
Keep delays applied to BUFZ devices.
2002-04-22 03:15:25 +00:00
7349a6beaf
Generate port information in the .ufunc statement.
2002-03-18 00:18:50 +00:00
b7c2bd4f72
Add the NetUserFunc netlist node.
2002-03-09 02:10:22 +00:00
02f5ccd5d9
Handle constants with drive strength z
2002-01-12 17:49:41 +00:00
361d4f2147
Drive strengths for continuous assignments.
2002-01-12 04:03:39 +00:00
6be3be0f16
Constant values have drive strengths.
2002-01-06 03:15:43 +00:00
dd79885f6d
Add structural modulus support down to vvp.
2002-01-03 04:19:01 +00:00
a5400d7212
Support all 3 TRI net types.
2001-12-15 02:13:33 +00:00
cd1524e6ca
Generate notif functors.
2001-12-14 06:03:34 +00:00
4dd5f97a96
Parse and handle drive strengths of gates to vvp.
2001-12-14 02:05:13 +00:00
ec4f8c80d5
Support functor delays for gates and UDP devices.
...
(Stephan Boettcher)
2001-12-06 03:31:24 +00:00
5d20dd63ec
Generate code for deassign and cassign.
2001-11-01 04:26:57 +00:00
5a6cca33a0
Write resolvers before the .functor (PR#300)
2001-10-24 03:43:45 +00:00
924b4e0062
unused idx warning.
2001-10-22 02:04:37 +00:00
0e43dfb285
Remove useless code for drawing .var inputs.
2001-10-22 00:04:51 +00:00
46621d3c83
wrong variable for clk input to memory.
2001-10-21 23:38:16 +00:00
73283768a5
Support rnpmos devices. (Philip Blundell)
2001-10-18 17:30:25 +00:00
177fa4062b
Support IVL_LPM_DIVIDE for structural divide.
2001-10-16 02:19:26 +00:00
42dab181cd
Carry the type of the scope (Stephan Boettcher)
2001-10-15 02:58:27 +00:00
5071ce8575
handle nmos and pmos devices.
2001-10-09 02:28:44 +00:00
b2b8b89cd8
Make configure detect malloc.h
2001-09-15 18:27:04 +00:00
f2068e83d4
Generate code for identity comparators.
2001-09-14 04:15:46 +00:00
2802601c44
tgt-vvp generates code that skips nets as inputs.
2001-08-10 00:40:45 +00:00
b72d1c297d
More detailed messages about unsupported things.
2001-08-03 17:06:10 +00:00
00cacae2a3
Generate constant symbols for supply nets.
2001-07-28 03:18:50 +00:00
bc284ee6d8
supply signals give input values.
2001-07-22 21:31:14 +00:00
05407f488f
Relax driver limit from 64 to forever (Stephan Boettcher)
2001-07-18 02:44:39 +00:00
64837efac5
Nest resolvers when there are lots of drivers (Stephan Boettcher)
2001-07-16 18:31:49 +00:00
c7b36322f6
Properly step through wide inputs. (Stephan Boettcher)
2001-07-09 15:38:35 +00:00
1628045b55
Generate code for right shift.
2001-07-07 03:01:06 +00:00
370549a19a
Generate code for structural left shift.
2001-07-06 04:48:04 +00:00
Stephen Williams
Cary R
steve