* All new code base. Many changes too numerous to mention.
**Minor:**
* Approximately 4 times faster then Verilator 2. * Support initial statements * Support correct blocking/nonblocking assignments * Support `defines across multiple modules * Optimize call ordering, constant propagation, and dead code elimination.
2.1.8
==========================
**Major:**
* All applications must now link against include/verilated.cpp
**Minor:**
* Paths specified to verilator_make should be absolute, or be formed to allow for execution in the object directory (prepend ../ to each path.) This allows relative filenames for makes which hash and cache dependencies. * Add warning when parameter constants are too large. [John Deroo] * Add warning when x/?'s used in non-casez statements. * Add warning when blocking assignments used in posedge blocks. [Dan Lussier] * Split evaluation function into clocked and non-clocked, 20% perf gain.
2.1.5
==========================
**Major:**
* Add coverage analysis. In conjunction with SystemC provide line coverage reports, without SystemC, provide a hook to user written accumulation function. See --coverage option of verilator_make.
**Minor:**
* Relaxed multiply range checking * Support for constants up to 128 bits * Randomize values used when assigning to X's. * Add -guard option of internal testing. * Changed indentation in emitted code to be automatically generated. * Fix corruption of assignments of signal over 32 bits with non-0 lsb.
2.1.4
==========================
**Major:**
* Add $c("c_commands();"); for embedding arbitrary C code in Verilog.
2.1.3
==========================
**Major:**
* Support for parameters.
2.1.2
==========================
**Major:**
* Verilog Errors now reference the .v file rather then the .vpp file.
**Minor:**
* Support strings in assignments: reg [31:0] foo = "STRG"; * Support %m in format strings. Ripped out old $info support, use Verilog-Perl's vpm program instead. * Convert $stop to call of v_stop() which user can define. * Fix bug where a==b==c would have wrong precedence rule. * Fix bug where XNOR on odd-bit-widths (~^ or ^~) had bad value.