84eb70660d
Switch qinsert to use a template
2020-08-04 21:14:17 -07:00
d1d6c0f5d2
Start refactoring the queue routines
2020-08-03 23:45:56 -07:00
199ed39abe
Report when the array pattern is larger than the maximum queue size
2020-08-02 23:40:35 -07:00
a2ba8a16b1
Add support for inserting into a queue
2020-07-29 23:00:19 -07:00
fdd902e446
Remove some clang warnings
2020-07-27 21:56:29 -07:00
14ade1a9f4
Pass the max size when storing to a queue
2020-07-27 21:24:22 -07:00
c969c324ed
Add initial support for using a queue element as an L-value
2020-07-26 14:02:29 -07:00
1a4345cce9
Add the ability to delete an element of a queue
2020-07-25 00:49:42 -07:00
e94291c88f
Handle negative and undefined queue addresses correctly
2020-07-23 22:49:33 -07:00
f0f045f1f9
Add warning messages when popping from an empty queue
2020-07-23 22:04:27 -07:00
1b52a4a578
Don't fail when pushing/poping from an empty queue
2020-07-23 19:12:35 -07:00
e1870acfac
Return the correct value when a queue or darray references an undefined element
2020-07-22 21:47:37 -07:00
1b7cd5c237
Add initial support for real queues
2020-07-19 21:34:56 -07:00
bf6c4329b9
Add push front for string queues and improve some warning messages
2020-07-19 19:18:59 -07:00
6ff07c1074
Enable support for providing a queue maximum index
2020-07-17 01:32:53 -07:00
085f466377
Fix GitHub issue #337 - incorrect uninitialised function return value.
2020-06-25 00:31:43 +01:00
89d3342804
Increase the thread flag count from 256 to 512
2020-05-31 12:39:54 -07:00
351a4e5f5e
Improve vvp handling of excessively large shift distances.
2019-11-16 12:11:49 +00:00
0a4cae2644
Fix vvp %shift instructions to treat right operand as unsigned.
...
1364-2005 section 5.1.12 says "The right operand is always treated
as an unsigned number".
This fixes GitHub issue #283 .
2019-11-15 21:24:47 +00:00
1aa22735ce
Add new %cast/vec2/dar and %cast/vec4/dar instructions to vvp.
2019-09-11 21:56:27 +01:00
74ff44314e
Add new %cast/vec4/str instruction to vvp.
2019-09-11 21:56:09 +01:00
2ff6af254b
Use LLONG_MIN instead of LONG_LONG_MIN.
...
GCC 8 no longer defines LONG_LONG_MIN. We already assume a C99 compliant
compiler in other places.
2019-01-26 16:47:28 +00:00
7ad5b59a6f
Fix for GitHub issue #199 : handle signed division overflow.
...
When performing a signed division or modulus operation using native
arithmetic, trap the special case that the numerator is the minimum
integer value and the denominator is -1, as this gives an undefined
result in C++.
2018-06-12 21:59:58 +01:00
db1ea05452
Fix #0 to trigger in the inactive region and add a trigger for always_comb/latch
2017-12-03 20:17:42 -08:00
3fc9ad2db0
Add support for the wild compare operators ==? and !=?
2017-11-17 19:32:50 -08:00
e315cafa01
Fix for GitHub issue #165 : assertion failure on thread join.
...
If a thread becomes detached due to a join_any statement, that
thread must not attempt to join its parent, even if the parent
is waiting on a subsequent join statement.
2017-10-07 16:41:26 +01:00
a1a7f5deff
Fix error in last commit.
2017-09-17 19:58:13 +01:00
0bed890bc6
Fix use after free bug in vvp when a task or function is disabled.
...
Use test_joinable() and do_join() to ensure everything gets cleaned
up before the thread is reaped. This should fix br1016, br1017, and
br1018.
2017-09-17 19:48:54 +01:00
f32b64f497
Fixed warnings about shifting a negative value
2016-09-19 12:54:15 -07:00
61c82d2cb0
Handle mixed continuous and non-blocking assignments to same vector.
...
SystemVerilog allows a mixture of procedural and continuous assignments
to be applied to different parts of the same vector. The previous attempt
to make this work for non-blocking assignments was flawed (see preceding
fix for vvp_fun_part_pv::recv_vec4_pv). Instead, handle this case by
converting the non-blocking assignment into a delayed force statement,
which matches the way mixed continuous and blocking assignments are
handled.
2016-05-10 22:16:40 +01:00
4521be4510
More spelling, comments only
2016-04-01 11:02:34 -07:00
9a7f31c728
Functions that return strings pass the return value on the stack.
2016-03-01 15:38:28 -08:00
841593d013
Remove some compile warnings
2016-02-03 21:40:18 -08:00
76ced1cf7c
Fix %ret/* and %retload/* opcodes to search up for function thread.
2016-02-01 14:51:18 -08:00
f494b478cc
Merge branch 'master' into return-stack
...
# Conflicts:
# sv_vpi_user.h
2016-02-01 14:47:44 -08:00
ce692f90ad
Implement and use the %retload/real opcode.
2016-02-01 09:31:06 -08:00
604a62379c
Make .scope aware of return type, and extend %ret/vec4 operands
...
The .scope needs to be aware of return types so that the %call/vec4
function knows how to intialize the return value. We also need to
extend the %ret/vec4 to support writing parts of the return value.
2016-01-31 15:29:52 -08:00
e435a879fc
Add ability to read back return value / Add vec4 stacked user functions.
...
Also:
- handle functions as arguments to system tasks.
- Cleanup detect of signal as return value.
2016-01-24 18:36:26 -08:00
0c91a6b041
Add .ufunc/real functor to handle functions with return value on stack.
2016-01-17 16:23:28 -08:00
bfc9cd8715
Make real functions in processes use parent stack for return value.
2016-01-10 17:09:33 -08:00
df6b24fd3a
ivl & vvp: Enabled 'string' as the return type in VPI functions.
2016-01-05 14:23:25 +01:00
63ad15ee2e
Rework user function calls to use specialized opcodes.
...
Create The %callf/* opcodes to invoke user defined functions in a
more specialized way. This allows for some sanity checking on the
way, and also is a step towards keeping return values on stacks.
2015-12-27 20:29:10 -08:00
fff69390ac
C++-ify the __vpiScope classes.
2015-12-20 20:26:57 -08:00
466b6464bc
Some minor vvp runtime performance tweaks.
2015-10-01 12:43:56 -07:00
4338d43cea
Opcodes documentation fixes.
2015-09-30 16:25:35 -07:00
fe7156289b
Remove some useless vvp opcodes.
2015-09-30 15:41:22 -07:00
c35f2f8334
Changes to vvp/vthread.cc
...
"child->delay_delete = 1;" was added, for when building with "Microsoft Visual Studio Express 2015 RC Web" in DEBUG mode, so that pr2909555.v would pass with -strict, otherwise it would cause memory access error will trying to access the previously deleted "child" variable.
2015-07-22 18:02:45 -07:00
97c6339241
Ensure VPI release on net connected to island returns correct value.
2015-07-01 09:00:43 +01:00
dad223316e
Fix propagation of unforced bits when forcing a part select.
...
vvp_net_t::force_vec4 propagates all bits of the forced value passed
to it, regardless of the mask value. I can't see any way to fix this
directly, so instead make sure anything that calls force_vec4 sets
the unforced bits of the passed value to the correct value.
2015-06-25 00:13:57 +01:00
2739f83702
Spelling fixes in C and C++ comments
2015-06-04 15:00:29 -07:00
feb710a186
Add support for any width 2-state darray objects
2015-02-27 11:43:25 -08:00
62abb199d7
Add support for 4-state dynamic arrays
2015-02-26 17:56:49 -08:00
47688d234b
Assert if an unsupported dynamic array type is given.
2015-01-16 18:54:43 -08:00
0282b8450c
Fix potential memory leak when a thread is disabled.
...
A disable statement can terminate a thread whilst it still has
local variables on the stack (e.g. the loop counter for a repeat
statement). We need to clear the thread stacks when this happens.
2014-12-11 20:10:17 +00:00
48b0fed29e
Use uint64_t casting of constants since UL does not work on 32-bit machines
...
Using a UL constant in a unit64_t context does not work on a 32-bit
machine since UL is 32-bits. Instead create uint64_t constants using
static casts and the appropriate bit operators.
2014-12-10 14:41:18 -08:00
0d7daf5862
Fix vvp memory leak for user function calls in a continuous assignment.
2014-12-07 13:47:50 +00:00
409f8c5823
Add the vec4 %subi instruction
2014-12-05 09:45:29 -08:00
03198356a5
vec4-stack stack manipulation improvements.
2014-12-04 17:15:27 -08:00
b1d2393789
Optimize the %sub instruction by integrating it with vvp_vector4_t class
2014-12-04 17:01:16 -08:00
0f740289e9
Optimize %mul instructions by integrating with vvp_vector4_t class.
2014-12-04 16:00:57 -08:00
46ce236cfb
Optimize the %add and %addi instructions
...
Tightly integrate with the vvp_vector4_t class to get much
better add performance.
2014-12-04 12:38:08 -08:00
86139c855d
Optimize the vec4-stack %cmp/s and %cmpi/s instructions.
...
Magnitude compare is called a LOT, so it is worth putting some
special effort into it.
2014-12-04 10:42:48 -08:00
eb070b061b
Optimize the vec4_to_index, which implements %ix/vec4 instructions.
2014-12-03 17:53:45 -08:00
2b1393e7b9
Reduce some vector copies in %load/vec4 and %concat/vec4 instructions.
...
By clever stack manipulations, we can eliminate some vector copies,
which can improve performance.
2014-12-03 13:12:06 -08:00
85c7b07a9b
Implement %cmp/ne and %cmpi/ne
...
These pull in the inversion of the output flags so that they more
efficiently implement != and !==, without %flag_inv instructions.
2014-12-03 11:06:11 -08:00
58fb80aec4
Implement and put to use the %muli instruction.
2014-12-02 12:46:17 -08:00
38f277d81b
Merge branch 'master' into vec4-stack
...
Conflicts:
vvp/array.cc
vvp/vthread.cc
2014-12-02 11:21:58 -08:00
7c77097f71
vvp: array_[set/get]_word changed to __vpiArray::[set/get]_word.
2014-11-28 14:14:42 +01:00
cc4c5f4998
vvp: Changed get_array_word_size(vvp_array_t) to __vpiArray::get_word_size().
2014-11-28 14:14:42 +01:00
679021a1b5
Optimize special cases of immediate value extraction.
2014-11-22 10:38:16 -08:00
f3392561ed
Optimize the vvp pad implementation.
2014-11-22 09:59:02 -08:00
c222b3b6a4
Minor improvements to the %split/vec4 instruction.
2014-11-21 16:51:59 -08:00
663c79d4af
Add the %cmp/e instructions, and put them to use.
...
When testing for == and ===, there is no need to also calculate <,
so it makes sense to have a special instruction for these cases.
2014-11-21 16:45:27 -08:00
bea03db25d
Minor vec4 stack manipulation optimizations.
2014-11-21 14:41:31 -08:00
b96f04ccce
Implement the %parti/X instructions
...
This allows part select with constant base to be handled optimally.
Also update some more instructions to more optimally work with
the vec4 stack.
2014-11-20 18:43:24 -08:00
a9db765f98
Generate better code for condition expressions.
2014-11-20 14:47:44 -08:00
04bdfbccee
Add %cmpi/s and %cmpi/u instructions for performance
...
These bypass the vec4 stack in some common cases, saving instructions
and vec4 manipulations.
Also, minor improvement to the %flag/set/vec4 statement.
Kill a few warnings.
2014-11-19 16:38:43 -08:00
2acc9fbdee
Remove dead instructsion %set/qb and %set/qf / Kill some warnings.
2014-11-19 09:15:01 -08:00
725ed869ba
Remove dead %load/vp0 instructions and related infrastructure
...
Also remove some &A<> and &PV<> symbols that use this now dead
infrastructure.
2014-11-19 09:02:21 -08:00
301edf69d3
Add and use %concati/vec4 and %addi instructions.
...
Also, clean up some warnings, and optimize some existing opcodes.
2014-11-18 12:27:55 -08:00
1612c6d638
Instruction %concat/vec4, %pad/u and %shiftl manipulate stack in place
2014-11-17 16:32:18 -08:00
aadd67cd3b
Some instructions can do stack manipultations in place.
...
By doing some stack manipulations in place, certain instructions
can eliminate, or optimize, vector copies.
2014-11-14 18:38:15 -08:00
0601b4e43b
Optimizations for %pushi/vec4 and %load/vec4
...
- Have %pushi/vec4 handle some special cases optimally.
- Eliminate some duplicated method calls in %load/vec4.
- Optimize the vvp_vector4_t::copy_from_ method by inlining
some parts.
2014-11-14 14:41:04 -08:00
8aca66b109
Performance tweaks
...
Better performance for %cmp/s and the vvp_fun_part_sa node.
2014-11-14 11:48:36 -08:00
c2e53f0d63
Fix for br963 - vvp qpop instructions need to call thr_check_addr.
2014-11-02 15:36:52 +00:00
48d3972299
Remove a bunch of dead vvp opcodes.
2014-10-24 15:13:28 -07:00
09d3a5de59
Port %pushv/str to vec4-stack style.
2014-10-24 10:16:35 -07:00
97bde47c31
Remove dead %set/dar and %set/dar/obj instructions.
2014-10-24 10:03:22 -07:00
4588f7c615
vec4 stack versions of queue pop methods.
2014-10-24 09:03:20 -07:00
35f5d51028
Support testing nul for property that is an object.
2014-10-22 12:58:50 -07:00
9964d67e5e
Implicit crop of vectors assigned to vector properties.
...
The %store/prop/v takes a width so that it is guaranteed that
all assignments to a vector property will get the size right.
2014-10-21 11:46:59 -07:00
a98f21aa65
Merge branch 'master' into vec4-stack
...
Conflicts:
elab_lval.cc
netmisc.cc
tgt-vvp/eval_object.c
tgt-vvp/vvp_process.c
vvp/codes.h
vvp/compile.cc
vvp/opcodes.txt
vvp/vpi_tasks.cc
vvp/vpi_vthr_vector.cc
vvp/vthread.cc
2014-10-21 09:12:02 -07:00
f36bebf0e1
Remove some compile warnings.
2014-10-13 16:31:53 -07:00
98799ff7fa
Allow class properties to be arrayed.
...
This adds the runtime support for class properties that are classes
to be arrayed. Add a means to define the dimensions of a property
in the vvp format, and add functions for setting/extracting elements
of a property.
2014-09-15 17:37:30 -07:00
facc982af4
Ability to compare arbitrary class-valued expression to nil.
2014-09-07 16:22:49 -07:00
dec4cd5071
Handle arrays of class objects.
...
This goes all the way down to the vvp level, where we create support
for arrays of objects, generate the new code in the -tvvp code
generator, and elaborate the arrays in the first place.
2014-08-30 10:18:57 -07:00
335db49282
Add vvp implementations for pop_back and pop_front methods.
2014-08-21 16:44:46 -07:00
c9ff48bd4e
Add support for dynamic array/queue "last" index ($)
...
Internally, treat the "$" as a special expression type that takes
as an argument the signal that is being indexed. In the vvp target,
use the $last system function to implement this.
2014-08-21 16:44:45 -07:00
da63ef02d4
Implement the size method for queues.
...
This works by translating it to a $size() system function call.
The $size function is already implemented for dynamic queues and
it is easy enough to expand it for queues.
2014-08-21 16:44:45 -07:00
d891285326
vvp code generation for push_back/push_front for queue objects.
2014-08-21 16:44:45 -07:00
Cary R
Martin Whitaker
Maciej Suminski
Larry Doolittle
Stephen Williams
Frederick C. Kurz
Martin Whitaker