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News

Verilator: Verilator 4.028 Released

Added by Wilson Snyder 10 days ago

Verilator 4.028 2020-02-08

  • Support attributes (public, isolate_assignments, etc.) in configuration files.
  • Add -match to lint_off to waive warnings. [Philipp Wagner]
  • Link Verilator binary partially statically, #2146. [Geza Lore]
  • Verilation speed improvements, #2133, #2138. [Geza Lore]
  • Support libgoogle-perftools-dev's libtcmalloc if available, #2137. [Geza Lore]
  • Support $readmem/$writemem with assoc arrarys, #2100. [agrobman]
  • Support type(expression) operator and $typename, #1650.
  • Support left justified $display, #2101. [Pieter Kapsenberg]
  • Support string character access via indexing.
  • Support enum.next(k) with constant k > 1, #2125. [Tobias Rosenkranz]
  • Support parameter access from arrays of interfaces, #2155. [Todd Strader]
  • Add parameter values in XML. #2110. [Pieter Kapsenberg]
  • Add loc column location in XML (replaces fl), #2122. [Pieter Kapsenberg]
  • Add error on misused define. [Topa Tota]
  • Add parameter to set maximum signal width, #2082. [\303\230yvind Harboe]
  • Add warning on genvar in normal for loop, #2143. [yurivict]
  • Fix VPI scope naming for public modules. [Nandu Raj]
  • Fix FST tracing of enums inside structs. [fsiegle]
  • Fix WIDTH warning on
  • Fix OpenSolaris issues, #2154. [brancoliticus]

Verilator: Verilator 4.026 Released

Added by Wilson Snyder about 1 month ago

Verilator 4.026 2020-01-11

  • Docker images are now available for Verilator releases.
  • Support bounded queues.
  • Support implication operator "|->" in assertions, #2069. [Peter Monsson]
  • Support string compare, ato*, etc methods, #1606. [Yutetsu TAKATSUKASA]
  • Support immediate cover statements.
  • Ignore `uselib to end-of-line, #1634. [Frederic Antonin]
  • Update FST trace API for better performance.
  • Add vpiTimeUnit and allow to specify time as string, #1636. [Stefan Wallentowitz]
  • Add error when `resetall inside module (IEEE 2017-22.3).
  • Add cleaner error on version control conflicts in sources.
  • Fix little endian cell ranges, #1631. [Julien Margetts]
  • Fix queue issues, #1641, #1643. [Peter Monsson, Stefan Wallentowitz]
  • Fix strcasecmp for windows, #1651. [Kuba Ober]
  • Fix disable iff in assertions. Closes #1404. [Peter Monsson]
  • Fix huge case statement performance. Closes #1644. [Julien Margetts]
  • Fix tracing -1 index arrays. Closes #2090. [Yutetsu Takatsukasa]
  • Fix expand optimization slowing --lint-only. Closes #2091. [Thomas Watts]
  • Fix %{number}s with strings. #2093. [agrobman]
  • Fix shebang breaking some shells. Closes #2067. [zdave]

Verilator: Verilator 4.024 Released

Added by Wilson Snyder 2 months ago

Verilator 4.024 2019-12-08

  • Support associative arrays (excluding [*] and pattern assignments), bug544.
  • Support queues (excluding {} notation and pattern assignments), bug545.
  • Add +verilator+error+limit to see more assertion errors. [Peter Monsson]
  • Support string.toupper and string.tolower.
  • Support $rewind and $ungetc.
  • Support shortreal as real, with a SHORTREAL warning.
  • Add -Wpedantic and -Wno-context for compliance testing.
  • Add error on redefining preprocessor directives. [Piotr Binkowski]
  • Support $value$plusargs float and shorts, bug1592, bug1619. [Garrett Smith]
  • Fix gate lvalue optimization error, bug831. [Jonathon Donaldson, Driss Hafdi]
  • Fix color assertion on empty if, bug1604. [Andrew Holme]
  • Fix for loop missing initializer, bug1605. [Andrew Holme]
  • Fix hang on concat error, bug1608. [Bogdan Vukobratovic]
  • Fix VPI timed callbacks to be one-shot, pull5. [Matthew Ballance]
  • Fix // in filenames, bug1610. [Peter Nelson]
  • Fix $display("%p") to be closer to IEEE.
  • Fix labels on functions with returns, bug1614. [Mitch Hayenga]
  • Fix false unused message on __Vemumtab, msg3180. [Tobias Rosenkranz]
  • Fix assertion on dotted parameter arrayed function, bug1620. [Rich Porter]
  • Fix interface reference tracing, bug1595. [Todd Strader]
  • Fix error on unpacked concatenations, bug1627. [Driss Hafdi]

Verilator: Verilator 4.022 Released

Added by Wilson Snyder 3 months ago

Verilator 4.022 2019-11-10

  • Add --protect-lib, bug1490. [Todd Strader]
  • Add cmake support, bug1363. [Patrick Stewart]
  • Examples have been renamed.
  • Add --protect-ids to obscure information in objects, bug1521. [Todd Strader]
  • Add --trace-coverage.
  • Add --xml-output.
  • Support multithreading on Windows. [Patrick Stewart]
  • Suppress 'command failed' on normal errors.
  • Support some unpacked arrays in parameters, bug1315. [Marshal Qiao]
  • Add interface port visibility in traces, bug1594. [Todd Strader]
  • Increase case duplicate/incomplete to 16 bit tables, bug1545. [Yossi Nivin]
  • Support quoted arguments in -f files, bug1535. [Yves Mathieu]
  • Optimize modulus by power-of-two constants, and masked conditionals.
  • Fix detecting missing reg types, bug1570. [Jacko Dirks]
  • Fix multithreaded yield behavior when no work. [Patrick Stewart]
  • Fix false CMPCONST/UNSIGNED warnings on "inside", bug1581. [Mitch Hayenga]

Verilator: Verilator 4.020 Released

Added by Wilson Snyder 4 months ago

Verilator 4.020 2019-10-06

  • Support $fseek, $ftell, $frewind, bug1496. [Howard Su]
  • Add --public-flat-rw, bug1511. [Stefan Wallentowitz]
  • Support vpiModule, bug1469. [Stefan Wallentowitz]
  • Make Syms file honor --output-split-cfuncs, bug1499. [Todd Strader]
  • Fix make test with no VERILATOR_ROOT, bug1494. [Ahmed El-Mahmoudy]
  • Fix error on multidimensional cells, bug1505. [Anderson Ignacio Da Silva]
  • Fix config_rev revision detection on old versions.
  • Fix false warning on backward indexing, bug1507. [Hao Shi]
  • Fix ugly error on interface misuse, bug1525. [Bogdan Vukobratovic]
  • Fix misc bad-syntax crashes, bug1529-bug1533. [Eric Rippey]
  • Fix case statements with strings, bug1536. [Philipp Wagner]

Verilator: Verilator 4.018 Released

Added by Wilson Snyder 6 months ago

Verilator 4.018 2019-08-29

  • When showing an error, show source code and offer suggestions of replacements.
  • When showing an error, show the instance location, bug1305. [Todd Strader]
  • Add --rr, bug1481. [Todd Strader]
  • Change MULTITOP to warning to help linting, see manual.
  • Add XSim support to driver.pl, bug1493. [Todd Strader]
  • Show included-from filenames in warnings, bug1439. [Todd Strader]
  • Fix elaboration time errors, bug1429. [Udi Finkelstein]
  • Fix not reporting some duplicate signals/ports, bug1462. [Peter Gerst]
  • Fix not in array context on non-power-of-two slices, msg2946. [Yu Sheng Lin]
  • Fix system compile flags injection. [Gianfranco Costamagna]
  • Fix enum values not being sized based on parent, bug1442. [Dan Petrisko]
  • Fix internal error on gate optimization of assign, bug1475. [Oyvind Harboe]
  • Add --dpi-hdr-only, bug1491. [Todd Strader]

Verilator: Verilator 4.016 Released

Added by Wilson Snyder 8 months ago

Verilator 4.016 2016-06-16

  • Add --quiet-exit, bug1436. [Todd Strader]
  • Error continuation lines no longer have %Error prefix.
  • Support logical equivalence operator <->.
  • Support VerilatedFstC set_time_unit, bug1433. [Pieter Kapsenberg]
  • Support deferred assertions, bug1449. [Charles Eddleston]
  • Mark infrequently called functions with GCC cold attribute.
  • Fix sign-compare warning in verilated.cpp, bug1437. [Sergey Kvachonok]
  • Fix fault on $realtime with %t, bug1443. [Julien Margetts]
  • Fix $display with string without %s, bug1441. [Denis Rystsov]
  • Fix parameter function string returns, bug1441. [Denis Rystsov]
  • Fix invalid XML output due to special chars, bug1444. [Kanad Kanhere]
  • Fix performance when mulithreaded on 1 CPU, bug1455. [Stefan Wallentowitz]
  • Fix build error on MinGW, bug1460. [Richard Myers]
  • Fix not reporting some duplicate signals, bug1462. [Peter Gerst]
  • Fix --savable invalid C++ on packed arrays, bug1465. [Alex Chadwick]
  • Fix constant function return of function var, bug1467. [Roman Popov]
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