iverilog/tgt-vvp
Stephen Williams 09d3a5de59 Port %pushv/str to vec4-stack style. 2014-10-24 10:16:35 -07:00
..
Makefile.in Merge branch 'master' into vec4-stack 2014-10-21 09:12:02 -07:00
README.txt tgt-vvp generates code that skips nets as inputs. 2001-08-10 00:40:45 +00:00
cppcheck.sup Remove some cppcheck warnings 2014-06-28 16:56:09 -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 Handle some tricky conditions assignments to parts. 2014-07-14 16:46:58 -07:00
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 Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
draw_vpi.c Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
eval_bool.c Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
eval_expr.c Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
eval_object.c Remove dead %set/dar and %set/dar/obj instructions. 2014-10-24 10:03:22 -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 Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
modpath.c updated FSF-address 2012-08-29 10:12:10 -07:00
stmt_assign.c Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
vector.c Merge branch 'master' into vec4-stack 2014-10-21 09:12:02 -07:00
vvp-s.conf.in Remove redundant back-end selections. 2008-09-07 16:43:54 -07:00
vvp.c various vec4 fixes. 2014-01-25 19:25:21 -08:00
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 Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
vvp_process.c Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
vvp_scope.c Handle arrays of class objects. 2014-08-30 10:18:57 -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.