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words.cc
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/*
* Copyright (c) 2003-2011 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
# include "compile.h"
# include "vpi_priv.h"
# include "array.h"
# include "vvp_net_sig.h"
# include "logic.h"
# include "schedule.h"
#ifdef CHECK_WITH_VALGRIND
# include "vvp_cleanup.h"
#endif
# include <cstdio>
# include <cstdlib>
# include <cstring>
# include <iostream>
# include <cassert>
static void __compile_var_real(char*label, char*name,
vvp_array_t array, unsigned long array_addr)
{
vvp_net_t*net = new vvp_net_t;
if (vpip_peek_current_scope()->is_automatic) {
vvp_fun_signal_real_aa*tmp = new vvp_fun_signal_real_aa;
net->fil = tmp;
net->fun = tmp;
} else {
net->fil = new vvp_wire_real;
net->fun = new vvp_fun_signal_real_sa;
}
define_functor_symbol(label, net);
vpiHandle obj = vpip_make_real_var(name, net);
compile_vpi_symbol(label, obj);
if (name) {
assert(!array);
vpip_attach_to_current_scope(obj);
if (!vpip_peek_current_scope()->is_automatic)
schedule_init_vector(vvp_net_ptr_t(net,0), 0.0);
}
if (array) {
assert(!name);
array_attach_word(array, array_addr, obj);
}
free(label);
delete[] name;
}
void compile_var_real(char*label, char*name)
{
__compile_var_real(label, name, 0, 0);
}
void compile_varw_real(char*label, vvp_array_t array,
unsigned long addr,
int msb, int lsb)
{
assert(msb == 0 && lsb == 0);
__compile_var_real(label, 0, array, addr);
}
static void __compile_var_string(char*label, char*name,
vvp_array_t array, unsigned long array_addr)
{
vvp_net_t*net = new vvp_net_t;
if (vpip_peek_current_scope()->is_automatic) {
vvp_fun_signal_string_aa*tmp = new vvp_fun_signal_string_aa;
net->fil = tmp;
net->fun = tmp;
} else {
net->fil = 0;
net->fun = new vvp_fun_signal_string_sa;
}
define_functor_symbol(label, net);
vpiHandle obj = vpip_make_string_var(name, net);
compile_vpi_symbol(label, obj);
if (name) {
assert(!array);
vpip_attach_to_current_scope(obj);
}
if (array) {
assert(!name);
array_attach_word(array, array_addr, obj);
}
delete[]label;
delete[] name;
}
void compile_var_string(char*label, char*name)
{
__compile_var_string(label, name, 0, 0);
}
/*
* A variable is a special functor, so we allocate that functor and
* write the label into the symbol table.
*/
void compile_variable(char*label, char*name,
int msb, int lsb, int vpi_type_code,
bool signed_flag, bool local_flag)
{
unsigned wid = ((msb > lsb)? msb-lsb : lsb-msb) + 1;
vvp_net_t*net = new vvp_net_t;
if (vpip_peek_current_scope()->is_automatic) {
vvp_fun_signal4_aa*tmp = new vvp_fun_signal4_aa(wid);
net->fil = tmp;
net->fun = tmp;
} else if (vpi_type_code == vpiIntVar) {
net->fil = new vvp_wire_vec4(wid, BIT4_0);
net->fun = new vvp_fun_signal4_sa(wid);
} else {
net->fil = new vvp_wire_vec4(wid, BIT4_X);
net->fun = new vvp_fun_signal4_sa(wid);
}
vvp_signal_value*vfil = dynamic_cast<vvp_signal_value*>(net->fil);
define_functor_symbol(label, net);
vpiHandle obj = 0;
if (! local_flag) {
/* Make the vpiHandle for the reg. */
switch (vpi_type_code) {
case vpiLogicVar:
obj = vpip_make_var4(name, msb, lsb, signed_flag, net);
break;
case vpiIntegerVar:
obj = vpip_make_int4(name, msb, lsb, net);
break;
case vpiIntVar: // This handles all the atom2 int types
obj = vpip_make_int2(name, msb, lsb, signed_flag, net);
break;
default:
fprintf(stderr, "internal error: %s: vpi_type_code=%d\n", name, vpi_type_code);
break;
}
assert(obj);
compile_vpi_symbol(label, obj);
}
// If the signal has a name, then it goes into the current
// scope as a signal.
if (name) {
if (obj) vpip_attach_to_current_scope(obj);
if (!vpip_peek_current_scope()->is_automatic) {
vvp_vector4_t tmp;
vfil->vec4_value(tmp);
schedule_init_vector(vvp_net_ptr_t(net,0), tmp);
}
}
free(label);
delete[] name;
}
vvp_net_t* create_constant_node(const char*val_str)
{
if (c4string_test(val_str)) {
vvp_net_t*net = new vvp_net_t;
net->fun = new vvp_fun_bufz;
schedule_init_vector(vvp_net_ptr_t(net,0), c4string_to_vector4(val_str));
return net;
}
if (c8string_test(val_str)) {
vvp_net_t*net = new vvp_net_t;
net->fun = new vvp_fun_bufz;
schedule_init_vector(vvp_net_ptr_t(net,0), c8string_to_vector8(val_str));
return net;
}
if (crstring_test(val_str)) {
vvp_net_t*net = new vvp_net_t;
net->fun = new vvp_fun_bufz;
schedule_init_vector(vvp_net_ptr_t(net,0), crstring_to_double(val_str));
return net;
}
return 0;
}
class base_net_resolv : public resolv_list_s {
public:
explicit base_net_resolv(char*ref_label, vvp_array_t array,
struct __vpiScope*scope,
char*my_label, char*name,
unsigned array_addr, bool local_flag)
: resolv_list_s(ref_label)
{ my_label_ = my_label;
array_ = array;
name_ = name;
scope_ = scope;
array_addr_ = array_addr;
local_flag_ = local_flag;
}
protected:
char*my_label_;
vvp_array_t array_;
char*name_;
struct __vpiScope*scope_;
unsigned array_addr_;
bool local_flag_;
};
class __compile_net_resolv : public base_net_resolv {
public:
explicit __compile_net_resolv(char*ref_label, vvp_array_t array,
struct __vpiScope*scope,
char*my_label, char*name,
int msb, int lsb, unsigned array_addr,
int vpi_type_code, bool signed_flag, bool local_flag)
: base_net_resolv(ref_label, array, scope, my_label, name, array_addr, local_flag)
{ msb_ = msb;
lsb_ = lsb;
vpi_type_code_ = vpi_type_code;
signed_flag_ = signed_flag;
}
~__compile_net_resolv() { }
bool resolve(bool message_flag);
private:
int msb_, lsb_;
int vpi_type_code_;
bool signed_flag_;
};
/*
* Here we handle .net records from the vvp source:
*
* .net <name>, <msb>, <lsb>, <input> ;
* .net/s <name>, <msb>, <lsb>, <input> ;
* .net8 <name>, <msb>, <lsb>, <input> ;
* .net8/s <name>, <msb>, <lsb>, <input> ;
*
* Create a VPI handle to represent it, and fill that handle in with
* references into the net.
*/
static void do_compile_net(vvp_net_t*node, vvp_array_t array,
struct __vpiScope*scope,
char*my_label, char*name,
int msb, int lsb, unsigned array_addr,
int vpi_type_code, bool signed_flag, bool local_flag)
{
unsigned wid = ((msb > lsb)? msb-lsb : lsb-msb) + 1;
assert(node);
vvp_wire_base*vsig = dynamic_cast<vvp_wire_base*>(node->fil);
if (vsig == 0) {
switch (vpi_type_code) {
case vpiIntVar:
vsig = new vvp_wire_vec4(wid,BIT4_0);
break;
case vpiLogicVar:
vsig = new vvp_wire_vec4(wid,BIT4_Z);
break;
case -vpiLogicVar:
vsig = new vvp_wire_vec8(wid);
break;
}
assert(vsig);
node->fil = vsig;
}
vpiHandle obj = 0;
if (! local_flag) {
/* Make the vpiHandle for the reg. */
obj = vpip_make_net4(name, msb, lsb, signed_flag, node);
/* This attaches the label to the vpiHandle */
compile_vpi_symbol(my_label, obj);
}
#ifdef CHECK_WITH_VALGRIND
else pool_local_net(node);
#endif
// REMOVE ME! Giving the net a label is a legacy of the times
// when the .net was a functor of its own. In the long run, we
// must fix the code generator to not rely on the label of the
// .net, then we will remove that label.
define_functor_symbol(my_label, node);
if (array)
array_attach_word(array, array_addr, obj);
else if (obj)
vpip_attach_to_scope(scope,obj);
free(my_label);
delete[] name;
}
static void __compile_net(char*label,
char*name, char*array_label, unsigned long array_addr,
int msb, int lsb,
int vpi_type_code, bool signed_flag, bool local_flag,
unsigned argc, struct symb_s*argv)
{
vvp_array_t array = array_label? array_find(array_label) : 0;
assert(array_label ? array!=0 : true);
free(array_label);
assert(argc == 1);
vvp_net_t*node = vvp_net_lookup(argv[0].text);
#if 1
if (node == 0) {
/* No existing net, but the string value may be a
constant. In that case, we will wind up generating a
bufz node that can carry the constant value.
NOTE: This is a hack! The code generator should be
fixed so that this is no longer needed. */
node = create_constant_node(argv[0].text);
}
#endif
if (node == 0) {
struct __vpiScope*scope = vpip_peek_current_scope();
__compile_net_resolv*res
= new __compile_net_resolv(argv[0].text,
array, scope, label, name,
msb, lsb, array_addr,
vpi_type_code, signed_flag, local_flag);
resolv_submit(res);
free(argv);
return;
}
assert(node);
struct __vpiScope*scope = vpip_peek_current_scope();
do_compile_net(node, array, scope, label, name, msb, lsb, array_addr,
vpi_type_code, signed_flag, local_flag);
free(argv[0].text);
free(argv);
}
bool __compile_net_resolv::resolve(bool msg_flag)
{
vvp_net_t*node = vvp_net_lookup(label());
if (node == 0) {
if (msg_flag)
cerr << "Unable to resolve label " << label() << endl;
return false;
}
do_compile_net(node, array_, scope_, my_label_, name_, msb_, lsb_, array_addr_, vpi_type_code_, signed_flag_, local_flag_);
return true;
}
void compile_net(char*label, char*name, int msb, int lsb,
int vpi_type_code, bool signed_flag, bool local_flag,
unsigned argc, struct symb_s*argv)
{
__compile_net(label, name, 0, 0, msb, lsb,
vpi_type_code, signed_flag, local_flag,
argc, argv);
}
void compile_netw(char*label, char*array_label, unsigned long array_addr,
int msb, int lsb, int vpi_type_code, bool signed_flag,
unsigned argc, struct symb_s*argv)
{
__compile_net(label, 0, array_label, array_addr,
msb, lsb, vpi_type_code, signed_flag, false,
argc, argv);
}
class __compile_real_net_resolv : public base_net_resolv {
public:
explicit __compile_real_net_resolv(char*ref_label, vvp_array_t array,
struct __vpiScope*scope,
char*my_label, char*name,
unsigned array_addr, bool local_flag)
: base_net_resolv(ref_label, array, scope, my_label, name, array_addr, local_flag)
{
}
~__compile_real_net_resolv() { }
bool resolve(bool message_flag);
private:
};
static void __compile_real_net2(vvp_net_t*node, vvp_array_t array,
struct __vpiScope*scope,
char*my_label, char*name,
unsigned array_addr, bool local_flag)
{
vvp_wire_base*fil = dynamic_cast<vvp_wire_base*> (node->fil);
if (fil == 0) {
fil = new vvp_wire_real;
node->fil = fil;
}
vpiHandle obj = 0;
if (!local_flag) {
obj = vpip_make_real_var(name, node);
compile_vpi_symbol(my_label, obj);
}
#ifdef CHECK_WITH_VALGRIND
else pool_local_net(node);
#endif
// REMOVE ME! Giving the net a label is a legacy of the times
// when the .net was a functor of its own. In the long run, we
// must fix the code generator to not rely on the label of the
// .net, then we will remove that label.
define_functor_symbol(my_label, node);
if (array)
array_attach_word(array, array_addr, obj);
else if (obj)
vpip_attach_to_scope(scope, obj);
free(my_label);
delete[] name;
}
static void __compile_real(char*label, char*name,
char*array_label, unsigned long array_addr,
int msb, int lsb, bool local_flag,
unsigned argc, struct symb_s*argv)
{
assert(msb == 0 && lsb == 0);
vvp_array_t array = array_label ? array_find(array_label) : 0;
assert(array_label ? array!=0 : true);
free(array_label);
assert(argc == 1);
vvp_net_t*node = vvp_net_lookup(argv[0].text);
if (node == 0) {
/* No existing net, but the string value may be a
constant. In that case, we will wind up generating a
bufz node that can carry the constant value. */
node = create_constant_node(argv[0].text);
}
struct __vpiScope*scope = vpip_peek_current_scope();
if (node == 0) {
__compile_real_net_resolv*res
= new __compile_real_net_resolv(argv[0].text, array,
scope, label, name,
array_addr, local_flag);
resolv_submit(res);
free(argv);
return;
}
assert(node);
__compile_real_net2(node, array, scope, label, name, array_addr,
local_flag);
free(argv[0].text);
free(argv);
}
bool __compile_real_net_resolv::resolve(bool msg_flag)
{
vvp_net_t*node = vvp_net_lookup(label());
if (node == 0) {
if (msg_flag)
cerr << "Unable to resolve label " << label() << endl;
return false;
}
__compile_real_net2(node, array_, scope_, my_label_, name_, array_addr_, local_flag_);
return true;
}
void compile_net_real(char*label, char*name, int msb, int lsb, bool local_flag,
unsigned argc, struct symb_s*argv)
{
__compile_real(label, name, 0, 0,
msb, lsb, local_flag, argc, argv);
}
void compile_netw_real(char*label, char*array_label, unsigned long array_addr,
int msb, int lsb,
unsigned argc, struct symb_s*argv)
{
__compile_real(label, 0, array_label, array_addr,
msb, lsb, false, argc, argv);
}
void compile_aliasw(char*label, char*array_label, unsigned long array_addr,
int msb, int lsb, unsigned argc, struct symb_s*argv)
{
vvp_array_t array = array_find(array_label);
assert(array);
assert(argc == 1);
vvp_net_t*node = vvp_net_lookup(argv[0].text);
/* Add the label into the functor symbol table. */
assert(node);
define_functor_symbol(label, node);
vpiHandle obj = vvp_lookup_handle(argv[0].text);
assert(obj);
array_alias_word(array, array_addr, obj, msb, lsb);
free(label);
free(array_label);
free(argv[0].text);
free(argv);
}