iverilog/tgt-vvp
Stephen Williams f77bdf7e38 Handle concatenation of SystemVerilog strings. 2012-07-22 10:52:06 -07:00
..
Makefile.in Support string literal strings in the vvp runtime. 2012-07-22 10:52:06 -07:00
README.txt tgt-vvp generates code that skips nets as inputs. 2001-08-10 00:40:45 +00:00
draw_enum.c Add more support for signed enumerations in SV. 2011-09-25 09:56:02 -07:00
draw_mux.c Revert bad merge from vhdl branch 2010-10-02 11:02:27 -07:00
draw_net_input.c Improved behaviour of tranif when control is 'x' or 'z'. 2012-04-27 17:08:38 -07:00
draw_switch.c Fix for pr3499807. 2012-03-12 09:03:53 -07:00
draw_ufunc.c Add support for tracing procedural statements. 2011-03-01 18:45:29 -08:00
draw_vpi.c Handle concatenation of SystemVerilog strings. 2012-07-22 10:52:06 -07:00
eval_bool.c Add support for tracing procedural statements. 2011-03-01 18:45:29 -08:00
eval_expr.c Implement comparison operators for strings. 2012-07-22 10:52:06 -07:00
eval_real.c Remove some MinGW32-w64 compile warnings. 2012-01-05 17:26:08 -08:00
eval_string.c Handle concatenation of SystemVerilog strings. 2012-07-22 10:52:06 -07:00
modpath.c Make ivl_alloc.h the last include so it doesn't effect any system includes. 2010-11-02 10:51:57 -07:00
stmt_assign.c Support string literal strings in the vvp runtime. 2012-07-22 10:52:06 -07:00
vector.c Fix shadow warnings found on OpenBSD. 2010-05-28 07:03:02 -07:00
vvp-s.conf.in Remove redundant back-end selections. 2008-09-07 16:43:54 -07:00
vvp.c Remove some cppcheck warnings. 2011-05-07 11:40:16 -07:00
vvp.conf.in Remove redundant back-end selections. 2008-09-07 16:43:54 -07:00
vvp_config.h.in Remove malloc.h support and for C++ files use <c...> include files. 2010-06-01 08:56:30 -07:00
vvp_priv.h Support string literal strings in the vvp runtime. 2012-07-22 10:52:06 -07:00
vvp_process.c Implement fork-join_none in vvp. 2012-05-27 18:26:54 -07:00
vvp_scope.c First pass at getting strings to work. 2012-07-22 10:52:06 -07:00

README.txt

THE VVP TARGET

SYMBOL NAME CONVENTIONS

There are some naming conventions that the vp target uses for
generating symbol names.

* wires and regs

Nets and variables are named V_<full-name> where <full-name> is the
full hierarchical name of the signal.

* Logic devices

Logic devices (and, or, buf, bufz, etc.) are named L_<full_name>. In
this case the symbol is attached to a functor that is the output of
the logic device.


GENERAL FUNCTOR WEB STRUCTURE

The net of gates, signals and resolvers is formed from the input
design. The basic structure is wrapped around the nexus, which is
represented by the ivl_nexus_t.

Each nexus represents a resolved value. The input of the nexus is fed
by a single driver. If the nexus in the design has multiple drivers,
the drivers are first fed into a resolver (or a tree of resolvers) to
form a single output that is the nexus.

The nexus, then, feeds its output to the inputs of other gates, or to
the .net objects in the design.