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News

Verilator 3.803 Released

Added by Wilson Snyder about 1 month ago

Verilator 3.803 2010/07/10

  • Fix preprocessor preservation of newlines across macro substitutions.
  • Fix preprocessor stringification of nested macros.
  • Fix some constant parameter functions causing crash, bug253. [Nick Bowler]
  • Fix do {...} while() not requiring final semicolon.

Verilator 3.802 Released

Added by Wilson Snyder 4 months ago

Verilator 3.802 2010/05/01

  • Support runtime access to public signal names.
  • Add /*verilator public_flat_rw*/ for timing-specific public access.
  • Fix word size to match uint64_t on -m64 systems, bug238. [Joe Eiler]
  • Improve error handling on slices of arrays, bug226. [by Byron Bradley]
  • Report errors when extra underscores used in meta-comments.
  • Fix bit reductions on multi-packed dimensions, bug227. [by Byron Bradley]
  • Fix removing $fscanf if assigned to unused var, bug248. [Ashutosh Das]
  • Fix "make install" with configure outside srcdir. [Stefan Wallentowitz]
  • Fix loop unroller out of memory; change --unroll-stmts. [Ashutosh Das]
  • Fix trace files with empty modules crashing some viewers.
  • Fix parsing single files > 2GB. [Jeffrey Short]
  • Fix installing data files as non-executable, bug168. [by Ahmed El-Mahmoudy]

Verilator 3.801 Released

Added by Wilson Snyder 6 months ago

Verilator 3.801 2010/03/17

  • Support "break", "continue", "return".
  • Support "`default_nettype none|wire". [Dominic Plunkett]
  • Skip SystemC tests if not installed. [Iztok Jeras]
  • Fix clock-gates with non-AND complex logic, bug220. [Ashutosh Das]
  • Fix flushing VCD buffers on $stop. [Ashutosh Das]
  • Fix Mac OS-X compile issues, bug217. [Joshua Wise, Trevor Williams]
  • Fix make uninstall, bug216. [Iztok Jeras]
  • Fix parametrized defines with empty arguments.

Verilator 3.800 Released

Added by Wilson Snyder 7 months ago

Verilator 3.800 2010/02/07

This is a major release including many SystemVerilog enhancements.

Application visible changes:

  • SystemPerl is no longer required for tracing. Applications must use VerilatedVcdC class in place of SpTraceVcdC.
  • SystemVerilog 1800-2009 is now the default language. Thus "global" etc are now keywords. See the --language option.

New features:

  • Support SystemVerilog types "byte", "chandle", "int", "longint", "shortint", "time", "var" and "void" in variables and functions.
  • Support "program", "package", "import" and $unit.
  • Support typedef and enum. [by Donal Casey]
  • Support direct programming interface (DPI) "import" and "export". Includes an extension to map user $system PLI calls to the DPI.
  • Support assignments of multidimensional slices, bug170. [by Byron Bradley]
  • Support multidimensional inputs/outputs, bug171. [by Byron Bradley]
  • Support "reg [1:0][1:0][1:0]" and "reg x [3][2]", bug176. [Byron Bradley]
  • Support declarations in loop initializers, bug172. [by Byron Bradley]
  • Support $test$plusargs and $value$plusargs, but see the docs!
  • Support $sformat and $swrite.
  • Support 1800-2009 define defaults and `undefineall.
  • Add -CFLAGS, -LDFLAGS, <file>.a, <file>.o, and <file>.so options.
  • Speed compiles by avoiding including the STL iostream header. Application programs may need to include it themselves to avoid errors.
  • Add experimental clock domain crossing checks.
  • Add experimental --pipe-filter to filter all Verilog input.
  • Add experimental config files to filter warnings outside of the source.
  • Add VARHIDDEN warning when signal name hides module name.
  • Support optional cell parenthesis, bug179. [by Byron Bradley]
  • Support for loop i++, ++i, i--, --i, bug175. [by Byron Bradley]
  • Support 1800-2009 /*comments*/ in define values.
  • Add Makefile VM_GLOBAL_FAST, listing objects needed to link executables.
  • Add --bbox-unsup option to black-box unsupported UDP tables.
  • Add -Wno-MODDUP option to allow duplicate modules.

Bug fixes:

  • Fix implicit variable issues, bug196, bug201. [Byron Bradley]
  • Fix 'for' variable typing, bug205. [by Byron Bradley]
  • Fix tracing with --pins-bv 1, bug195. [Michael S]
  • Fix MSVC++ 2008 compile issues, bug209. [Amir Gonnen]
  • Fix MinGW compilation, bug184, bug214. [by Shankar Giri, Amir Gonnen]
  • Fix Cygwin 1.7.x compiler error with uint32_t, bug204. [Ivan Djordjevic]
  • Fix `define argument mis-replacing system task of same name, bug191.
  • Fix Verilator core dump on wide integer divides, bug178. [Byron Bradley]
  • Fix lint_off/lint_on meta comments on same line as warning.

Verilator 3.720 Released

Added by Wilson Snyder 10 months ago

Verilator 3.720 2009/10/26

  • Support little endian bit vectors ("reg [0:2] x;").
  • Support division and modulus of > 64 bit vectors. [Gary Thomas]
  • Fix writing to out-of-bounds arrays writing element 0.
  • Fix core dump with SystemVerilog var declarations under unnamed begins.
  • Fix VCD files showing internal flattened hierarchy, broke in 3.714.
  • Fix cell port connection to unsized integer causing false width warning.
  • Fix erroring on strings with backslashed newlines, bug168. [Pete Nixon]

Verilator 3.714 Released

Added by Wilson Snyder 12 months ago

Verilator 3.714 2009/09/18

  • Add --bbox-sys option to blackbox $system calls.
  • Support generate for var++, var--, ++var, --var.
  • Improved warning when "do" used as identifier.
  • Don't require SYSTEMPERL_INCLUDE if SYSTEMPERL/src exists. [Gary Thomas]
  • Fix deep defines causing flex scanner overflows. [Brad Dobbie]
  • Fix preprocessing commas in deep parameterized macros. [Brad Dobbie]
  • Fix tracing escaped dotted identifiers, bug107.
  • Fix $display with uppercase %M.
  • Fix --error-limit option being ignored.

Verilator 3.713 Released

Added by Wilson Snyder about 1 year ago

Verilator 3.713 2009/08/04

  • Support constant function calls for parameters. [many!]
  • Support SystemVerilog "logic", bug101. [by Alex Duller]
  • Name SYMRSVDWORD error, and allow disabling it, bug103. [Gary Thomas]
  • Fix escaped preprocessor identifiers, bug106. [Nimrod Gileadi]

Verilator 3.712 Released

Added by Wilson Snyder about 1 year ago

Verilator 3.712 2009/07/14

  • Patching SystemC is no longer required to trace sc_bvs.
  • Support zero-width constants in concatenations. [Jeff Winston]
  • Add verilator --pins-uint8 option to use sc_in<uint8_t/uint16_t>.
  • Add verilator -V option, to show verbose version.
  • On WIDTH warnings, show variable name causing error. [Jeff Winston]
  • Add BLKLOOPINIT error code, and describe --unroll-count. [Jeff Winston]

Verilator 3.711 Released

Added by Wilson Snyder about 1 year ago

Verilator 3.711 2009/06/23

  • Support decimal constants of arbitrary widths. [Mark Marshall]
  • Fix error on case statement with all duplicate items, bug99. [Gary Thomas]
  • Fix segfault on unrolling for's with bad inits, bug90. [Andreas Olofsson]
  • Fix tristates causing "Assigned pin is neither...". [by Lane Brooks]
  • Fix compiler errors under Fedora release candidate 11. [Chitlesh Goorah]

Verilator 3.710 Released

Added by Wilson Snyder over 1 year ago

Verilator 3.710 2009/05/19

  • Verilator is now licensed under LGPL v3 and/or Artistic v2.0.
  • `__FILE__ now expands to a string, per draft SystemVerilog 2010(ish).
  • The front end parser has been re-factored to enable more SV parsing. Code should parse the same, but minor parsing bugs may pop up.
  • Verilator_includer is no longer installed twice, bug48. [Lane Brooks]
  • Fix escaped identifiers with '.' causing conflicts, bug83. [J Baxter]
  • Fix define formal arguments that contain newlines, bug84. [David A]

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