package rfsm

2.0 (Nov 28, 2023)

• Entirely recrafted modular implementation (host+guests languages)
• Documentation now splitted in a User Manual and a Reference Manual
• Formal semantics
• Used by rfsm-light 1.3.0
• No longer depends on Lascar package

1.7 (Mar 30, 2021)

• Outputs can now be specifed using Moore style (i.e. attached to states); many examples have been rewritten accordingly (see for ex. examples/single/gensig/v1)
• Bug fixes
• Many examples added

1.6 (Aug 21, 2019)

• IMPORTANT the GUI is now provided as a separate project; this source tree only concerns the rfsm library and rfsmc compiler (provided as an opam package)
• build and install processes are now handled by the dune and dune-release tools
• now uses lascar-v0.6

1.5 (May 30, 2019)

• New syntax for FSM models. Transitions are now written: | src_state -> dst_state ON ev [WHEN guards] [WITH actions] | -> init_state [WITH actions]
• New syntax for comments. Now start with -- (like in VHDL)
• The old syntax is still supported by invoking the compiler with the -old_syntax option
• The option -transl_syntax can be used to convert source files from old to new syntax
• Updated the user manual with new syntax
• The -main option can now also be used to change the name of the top level .dot file and the generated .vcd file
• Removed option -vcd
• The name of the testbench (resp. toplevel) modules generated by the VHDL backend is now main_tb (resp. main_top); the main prefix can be changed with the -main option.
• rfsmmake utility for automatic building of top-level Makefile from .pro file (see Sec. 3.6 of User Manual)
• Option -vhdl_dump_ghw to force GHDL dumping in .ghw format instead of .vcd (useful for displaying values with record type for ex.)
• The configure script now writes file a lib/etc/platform containing platform-specific definitions to be used in generated Makefiles
• Source code for all examples rewritten as FSM model(s) + testbench + .pro file
• Revamped GUI with support for projects

1.4 (Mar 9, 2019)

• Major code recrafting (lib and compiler)
• Fixed several bugs in scripts/Makefiles when building from sources on Linux platforms
• Added options --no-libs and --no-doc to configure script when building from sources

1.3 (Jan 10, 2019)

• Declarations (types, constants, fsm models, etc) can now appear in any order in source file(s)
• The rfsmc compiler now accepts a list of .fsm files (to improve source level reuse)
• Support for group declarations (ex: vars i,j: int or output o1,o2,o3: bool)
• Support for enum and record types (see examples/single/rpcalc for ex)
• Support for char type (see examples/single/rle for ex)
• Updated documentation

1.2 (Nov 5, 2018)

• Size and range annotations for int type (ex: int<8> and int<0:255>)
• Bitwise and shift operators for int values (see examples/single/{r,t}xd for ex.)
• Bit range expressions for ints (ex: "v2", "v6:2") (see examples/single/bcd for ex.)
• Support for global constants
• Testbenches generated by the SystemC and VHDL backend now use a 0.5 duty cycle clock
• VHDL backend now always generate a Top module encapsulating the DUT
• Minimal support for multi-FSMs models with shared variable in the VHDL backend
• New examples: single/{rxd,txd,bcd,rpcalc,rle} and multi/rxtx
• Updated documentation

1.1 (Jul 24, 2018)

    * Support for float values (see `examples/single/heron/v1`)
* Changed syntax for integer range (`int<lo:hi>` instead of `int<lo..hi>`)
* Support for global functions (see `examples/single/heron/v2`)
* Support for (1D) array type (see `examples/single/fir/v2`)
* Bug fix for negative constants in parser
* Boolean constants are now denoted (and written) 0 (resp. 1) 
* Boolean type is now translated as `std_logic` in VHDL (unless option `-vhld_bool_as_bool` is asserted)
* With option `-vhdl_numeric_std`, ranged integers are translated as `unsigned` and `signed` in VHDL 
* The simulator does not stop when encountering an initialized value but propagates it

1.0 (Feb 25, 2018)

* First public version