iverilog/tgt-vvp
Larry Doolittle 2739f83702 Spelling fixes in C and C++ comments 2015-06-04 15:00:29 -07:00
..
Makefile.in vvp code generator try to generate condition flags directly. 2014-11-19 18:32:19 -08:00
README.txt Spelling fixes in .txt files 2015-05-25 12:52:03 -07:00
cppcheck.sup Update some cppcheck suppression files 2015-04-08 19:36:21 -07:00
draw_class.c Allow class properties to be arrayed. 2014-09-15 17:37:30 -07:00
draw_enum.c updated FSF-address 2012-08-29 10:12:10 -07:00
draw_mux.c Improbe vvp support for wide mux devices. 2014-07-14 16:46:58 -07:00
draw_net_input.c Enable use of MinGW ANSI stdio routines. 2015-05-10 11:45:42 +01:00
draw_substitute.c Handle some tricky conditions assignments to parts. 2014-07-14 16:46:58 -07:00
draw_switch.c updated FSF-address 2012-08-29 10:12:10 -07:00
draw_ufunc.c Spelling fixes 2015-04-13 11:35:12 -07:00
draw_vpi.c Enable use of MinGW ANSI stdio routines. 2015-05-10 11:45:42 +01:00
eval_bool.c Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
eval_condit.c Implement %cmp/ne and %cmpi/ne 2014-12-03 11:06:11 -08:00
eval_expr.c Fix for br962 - pop from dynamic array is not padded to correct width. 2014-11-02 15:26:15 +00:00
eval_object.c Update format string to use correct format character 2015-04-08 19:36:33 -07:00
eval_real.c Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
eval_string.c Port %pushv/str to vec4-stack style. 2014-10-24 10:16:35 -07:00
eval_vec4.c Spelling fixes in C and C++ comments 2015-06-04 15:00:29 -07:00
modpath.c Enable use of MinGW ANSI stdio routines. 2015-05-10 11:45:42 +01:00
stmt_assign.c Enable use of MinGW ANSI stdio routines. 2015-05-10 11:45:42 +01:00
vector.c Remove dead code for allocate_vec handling. 2014-10-24 13:07:53 -07:00
vvp-s.conf.in Remove redundant back-end selections. 2008-09-07 16:43:54 -07:00
vvp.c Pass -v compiler option to vvp in the output file shebang line. 2014-12-16 21:22:19 +00:00
vvp.conf.in Remove redundant back-end selections. 2008-09-07 16:43:54 -07:00
vvp_config.h.in Update header files to use a more standard name to prevent rereading 2014-07-23 13:42:56 -07:00
vvp_priv.h Spelling fixes in C and C++ comments 2015-06-04 15:00:29 -07:00
vvp_process.c Spelling fixes in C and C++ comments 2015-06-04 15:00:29 -07:00
vvp_scope.c Space/code cleanup and warn that vvp does not support S/R D-FF 2015-04-20 15:41:44 -07:00

README.txt

THE VVP TARGET

SYMBOL NAME CONVENTIONS

There are some naming conventions that the vvp 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.