21ca8360fe
Improve vvp handling of excessively large shift distances.
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(cherry picked from commit 351a4e5f5e
2019-11-16 12:28:45 +00:00
b13b608744
Fix vvp %shift instructions to treat right operand as unsigned.
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1364-2005 section 5.1.12 says "The right operand is always treated
as an unsigned number".
This fixes GitHub issue #283 .
(cherry picked from commit 0a4cae2644
2019-11-16 12:28:37 +00:00
33c651aa00
Spelling fixes in .txt files
2015-05-25 12:52:03 -07:00
5dc1396eea
Spelling fixes
2015-04-13 11:35:12 -07:00
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
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
04bdfbccee
Add %cmpi/s and %cmpi/u instructions for performance
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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
725ed869ba
Remove dead %load/vp0 instructions and related infrastructure
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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.
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Also, clean up some warnings, and optimize some existing opcodes.
2014-11-18 12:27:55 -08:00
8aca66b109
Performance tweaks
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Better performance for %cmp/s and the vvp_fun_part_sa node.
2014-11-14 11:48:36 -08:00
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.
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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
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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
98799ff7fa
Allow class properties to be arrayed.
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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
d891285326
vvp code generation for push_back/push_front for queue objects.
2014-08-21 16:44:45 -07:00
60d37e1f53
More vec4 support for various things.
2014-02-07 11:24:41 -08:00
401fccdf6e
vec4 handling of DARRAY of vec4 vectors.
2014-02-06 15:05:26 -08:00
f5564a195f
vec4 versions of compressed assignment statements.
2014-02-06 09:55:25 -08:00
1805598eae
Fix some vec4 handling of putc, len, and other string methods.
2014-01-31 19:01:28 -08:00
fdc9e8590d
Merge branch 'master' into vec4-stack
2014-01-30 15:59:51 -08:00
be17bfc0e9
Spelling fixes
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Mostly comments.
One user-visible string ("Evalutated to ") changed in the debug_eval_tree case.
2014-01-30 15:34:20 -08:00
54346d7095
vec4 implementations of real ternary and vec4 to real casts.
2014-01-21 12:02:59 -08:00
d2c2d6d8dc
vec4 versions of %cassign/vec4/off and %force/vec4/off send flags[4].
2014-01-18 17:08:36 -08:00
d8533104b0
Cleanup vec4 handling of suppressed store/assign due to bad offset/index math.
2014-01-14 12:00:39 -08:00
660d59a7a9
vec4 versions of the %force instructions.
2014-01-13 18:57:03 -08:00
b0a9430e98
Wrap up vecc4 support for left/right shift expressions.
2014-01-13 16:11:47 -08:00
e5eb754150
vec4 versions of a bunch of unary operators.
2014-01-05 14:12:27 -08:00
063c6d6065
Add the %event instruction, remove %ix/get and %ix/get/s.
2014-01-05 12:39:52 -08:00
2fc8ce8a16
Implement vec4 basec %assign delay and event / vpiTimeVal for functions.
2014-01-05 12:04:16 -08:00
1a3adbe9cd
Vec4 store to memories.
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This also reworks the working of the %store/vec4 instruction to
take a part offset, and eliminate the %store/vec4/off instruction.
2014-01-05 10:30:59 -08:00
f89dbd48c8
Add vec4 support for bitwise or/nor/nand/xor/xnor.
2014-01-04 23:48:16 +00:00
9fc3e84e93
vec4 cassign to part selects.
2014-01-04 22:58:58 +00:00
e708a5b59d
Handle vec4 part selects / vec4 cassign / repeat statements
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These features need to be adapted to the vec4 stack.
2014-01-04 22:11:07 +00:00
d55e4c0552
Redesign support for system functions that return vec4
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Redsign the handling of the return value, including a rework of
the %vpi_func syntax to carry the needed information.
Add a few more arithmetic operator instructions.
2014-01-04 22:06:58 +00:00
54926840e6
Handle vec4 stack version of concatenation.
2013-12-28 07:50:37 +02:00
5ef077fdf6
Start work on converting vec4 expressions to use stack.
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Instead of using a bit4 space to hold thread vectors, create a
vec4 stack--much like the real, string, and object stacks--to
hold intermediate values.
2013-12-27 17:04:42 +02:00
c1566bc02b
Merge branch 'master' of github.com:steveicarus/iverilog
2013-12-04 16:22:11 -08:00
f349197df3
Describe the %putc/str/v vvp opcode.
2013-12-04 16:22:01 -08:00
7e55babb62
Fix leaks in the object stack
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This patch fixes some leaks in the object stack when getting various
class properties. With this fix an assert can be added to verify that
the object stack is clean when a thread is exiting.
2013-12-03 17:24:42 -08:00
fa8d35ae9c
Support nested l-value objects
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This allows for syntax like a.b.c where a is a class with member
b, which is a class with member c, and so on. The handling is mostly
for the support of compound objects like classes.
2013-11-22 19:54:42 -08:00
4047ed7976
Add support for SV wait fork to the run time.
2013-10-22 16:00:29 -07:00
e60804cf41
Handle initialized darray of strings
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This includes adding support for returning strings from functions,
adding initializing new darray with array_pattern strings, and
assigning an array_pattern of strings to a preallocated darray.
Also fix up support for initializing array with simple string
expression.
2013-10-19 15:34:15 -07:00
82ebf6372c
Generate code to implement new element initializers.
2013-10-19 15:34:15 -07:00
aa9a7435dd
Start of support for %disable/fork opcode.
2013-10-17 15:10:58 -07:00
Martin Whitaker
Larry Doolittle
Stephen Williams
Cary R