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.
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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.
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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.
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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
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# 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
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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.
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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.
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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
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"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.
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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.
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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
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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
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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.
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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.
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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
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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
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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.
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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
Cary R
Martin Whitaker
Maciej Suminski
Larry Doolittle
Stephen Williams
Frederick C. Kurz
Martin Whitaker