Features

The following table gives an overviev on the C++/SystemC™ features supported by the fossy synthesis tool.

C++/Systemc™ feature			Comment
Translation units		☑	Only one translation unit allowed
Modules
	Members: signals, sub-modules, ctors, `HAS_PROCESS`	☑
	Ports/Signals: `sc_signal`, `sc_in`, `sc_out`, `sc_inout`, `sc_in_clk`	☑
	Ports/Signals: `sc_out_clk`, `sc_inout_clk`	☐	Not supported, but deprecated anyway.
	Ports/Signals: `_resolved`, `_rv`	☐	Not supported.
	Ctor: w/ and w/o `SC_CTOR` macro	☑
	Deriving	☑
Datatypes
	Integral types	☑
	Integral promotion, arithmetic conversion	☑
	Operators	☑
	Compounds: arrays, enums, class/struct/unions	☑	No pointers and no references supported.
	SysC: `sc_int`, `sc_uint`, `sc_bigint`, `sc_biguint`	☑
	SysC: fixed-point types	☐
	SysC: `sc_bv`	☑
	SysC: `sc_logic`	☑	Converted to sc_bv<1> internally.
	SysC: `sc_lv`	☐
	SysC: arithmetic operators	☑
	SysC: bitwise operators	☑
	SysC: relational oparators	☑
	SysC: shift operators	☑
	SysC: assignment operators	☑	No chained assignments, LHS must be side effect-free.
	SysC: bit select operators	☑
	SysC: part select operators	☑	Reverse ranges not supported.
	SysC: concatenation operators	☑	Assignment to concats not supported.
	SysC: conversion to C integral (`to_int()`, `to_bool()` etc.)	☑
	SysC: additional methods: `iszero()`, `sign()`, `bit()`, `reverse()`, etc.	☐	accepted, but not fully implemented
Declarations
	typedef	☑
	enums	☑
	aggregates	☑	No support for aggregate inits.
	arrays	☑
	references	☐	Copy-in copy-out support for functions/methods.
	pointers	☐	Pointers allowed for sub-module instantiation only.
Expressions		☑	new/delete not supported, no chained assignments.
Functions		☑
Statements		☑
Processes		☑	No `SC_THREAD` supported.
Sub-module instantiation		☑	No support for positional port binding.
Namespaces		☑
Classes
	Member functions	☑
	Member vars	☑
	Inheritance	☑
	Abstract classes	☑
	Constructors	☑	Restrictions on default arguments.
Overloading		☑
Templates		☑
Pre-processing directives		☑