iverilog/tgt-vvp
Stephen Williams 60cb78e4ab Add packages and their own scope.
This makes <pkg>::<name> work properly, and also makes the
package descriptions available through VPI.
2013-02-17 17:00:15 -08:00
..
Makefile.in Draft run-time support for SystemVerilog class objects. 2012-12-10 19:20:02 -08:00
README.txt tgt-vvp generates code that skips nets as inputs. 2001-08-10 00:40:45 +00:00
draw_class.c Add support for darrays as class properties. 2013-01-27 20:10:25 -08:00
draw_enum.c updated FSF-address 2012-08-29 10:12:10 -07:00
draw_mux.c Fix printf opcode argument mismatches in tgt-vvp (cppcheck) 2012-08-31 12:36:55 -07:00
draw_net_input.c PV-to-concat belnding should use a strength-aware concat. 2013-02-02 10:44:16 -08:00
draw_switch.c updated FSF-address 2012-08-29 10:12:10 -07:00
draw_ufunc.c Rewire real value expressions to use a stack instead of register space. 2012-10-22 17:20:43 -07:00
draw_vpi.c Fix uninitialized buffer when drawing a real VPI argument 2013-01-22 09:22:50 -08:00
eval_bool.c updated FSF-address 2012-08-29 10:12:10 -07:00
eval_expr.c Draft run-time support for SystemVerilog class objects. 2012-12-10 19:20:02 -08:00
eval_object.c Add support for darrays as class properties. 2013-01-27 20:10:25 -08:00
eval_real.c Handle real value class properties. 2013-01-27 20:10:25 -08:00
eval_string.c Handle strings as class object properties. 2013-01-27 20:10:25 -08:00
modpath.c updated FSF-address 2012-08-29 10:12:10 -07:00
stmt_assign.c Allow for class objects an class properties. 2013-01-27 20:10:25 -08:00
vector.c updated FSF-address 2012-08-29 10:12:10 -07:00
vvp-s.conf.in Remove redundant back-end selections. 2008-09-07 16:43:54 -07:00
vvp.c updated FSF-address 2012-08-29 10:12:10 -07:00
vvp.conf.in Remove redundant back-end selections. 2008-09-07 16:43:54 -07:00
vvp_config.h.in updated FSF-address 2012-08-29 10:12:10 -07:00
vvp_priv.h Draft run-time support for SystemVerilog class objects. 2012-12-10 19:20:02 -08:00
vvp_process.c Rewire real value expressions to use a stack instead of register space. 2012-10-22 17:20:43 -07:00
vvp_scope.c Add packages and their own scope. 2013-02-17 17:00:15 -08:00

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.