*/
#include "kernel/log.h"
+#include "kernel/utils.h"
#include "libs/sha1/sha1.h"
#include "ast.h"
#include <sstream>
#include <stdarg.h>
-#include <assert.h>
#include <algorithm>
+YOSYS_NAMESPACE_BEGIN
+
using namespace AST;
using namespace AST_INTERNAL;
static RTLIL::SigSpec uniop2rtlil(AstNode *that, std::string type, int result_width, const RTLIL::SigSpec &arg, bool gen_attributes = true)
{
std::stringstream sstr;
- sstr << type << "$" << that->filename << ":" << that->linenum << "$" << (RTLIL::autoidx++);
+ sstr << type << "$" << that->filename << ":" << that->linenum << "$" << (autoidx++);
RTLIL::Cell *cell = current_module->addCell(sstr.str(), type);
cell->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
- RTLIL::Wire *wire = current_module->addWire(cell->name + "_Y", result_width);
+ RTLIL::Wire *wire = current_module->addWire(cell->name.str() + "_Y", result_width);
wire->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
if (gen_attributes)
cell->parameters["\\A_SIGNED"] = RTLIL::Const(that->children[0]->is_signed);
cell->parameters["\\A_WIDTH"] = RTLIL::Const(arg.size());
- cell->set("\\A", arg);
+ cell->setPort("\\A", arg);
cell->parameters["\\Y_WIDTH"] = result_width;
- cell->set("\\Y", wire);
+ cell->setPort("\\Y", wire);
return wire;
}
// helper function for extending bit width (preferred over SigSpec::extend() because of correct undef propagation in ConstEval)
-static void widthExtend(AstNode *that, RTLIL::SigSpec &sig, int width, bool is_signed, std::string celltype)
+static void widthExtend(AstNode *that, RTLIL::SigSpec &sig, int width, bool is_signed)
{
if (width <= sig.size()) {
- sig.extend(width, is_signed);
+ sig.extend_u0(width, is_signed);
return;
}
std::stringstream sstr;
- sstr << "$extend" << "$" << that->filename << ":" << that->linenum << "$" << (RTLIL::autoidx++);
+ sstr << "$extend" << "$" << that->filename << ":" << that->linenum << "$" << (autoidx++);
- RTLIL::Cell *cell = current_module->addCell(sstr.str(), celltype);
+ RTLIL::Cell *cell = current_module->addCell(sstr.str(), "$pos");
cell->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
- RTLIL::Wire *wire = current_module->addWire(cell->name + "_Y", width);
+ RTLIL::Wire *wire = current_module->addWire(cell->name.str() + "_Y", width);
wire->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
if (that != NULL)
cell->parameters["\\A_SIGNED"] = RTLIL::Const(is_signed);
cell->parameters["\\A_WIDTH"] = RTLIL::Const(sig.size());
- cell->set("\\A", sig);
+ cell->setPort("\\A", sig);
cell->parameters["\\Y_WIDTH"] = width;
- cell->set("\\Y", wire);
+ cell->setPort("\\Y", wire);
sig = wire;
}
static RTLIL::SigSpec binop2rtlil(AstNode *that, std::string type, int result_width, const RTLIL::SigSpec &left, const RTLIL::SigSpec &right)
{
std::stringstream sstr;
- sstr << type << "$" << that->filename << ":" << that->linenum << "$" << (RTLIL::autoidx++);
+ sstr << type << "$" << that->filename << ":" << that->linenum << "$" << (autoidx++);
RTLIL::Cell *cell = current_module->addCell(sstr.str(), type);
cell->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
- RTLIL::Wire *wire = current_module->addWire(cell->name + "_Y", result_width);
+ RTLIL::Wire *wire = current_module->addWire(cell->name.str() + "_Y", result_width);
wire->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
for (auto &attr : that->attributes) {
cell->parameters["\\A_WIDTH"] = RTLIL::Const(left.size());
cell->parameters["\\B_WIDTH"] = RTLIL::Const(right.size());
- cell->set("\\A", left);
- cell->set("\\B", right);
+ cell->setPort("\\A", left);
+ cell->setPort("\\B", right);
cell->parameters["\\Y_WIDTH"] = result_width;
- cell->set("\\Y", wire);
+ cell->setPort("\\Y", wire);
return wire;
}
// helper function for creating RTLIL code for multiplexers
static RTLIL::SigSpec mux2rtlil(AstNode *that, const RTLIL::SigSpec &cond, const RTLIL::SigSpec &left, const RTLIL::SigSpec &right)
{
- assert(cond.size() == 1);
+ log_assert(cond.size() == 1);
std::stringstream sstr;
- sstr << "$ternary$" << that->filename << ":" << that->linenum << "$" << (RTLIL::autoidx++);
+ sstr << "$ternary$" << that->filename << ":" << that->linenum << "$" << (autoidx++);
RTLIL::Cell *cell = current_module->addCell(sstr.str(), "$mux");
cell->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
- RTLIL::Wire *wire = current_module->addWire(cell->name + "_Y", left.size());
+ RTLIL::Wire *wire = current_module->addWire(cell->name.str() + "_Y", left.size());
wire->attributes["\\src"] = stringf("%s:%d", that->filename.c_str(), that->linenum);
for (auto &attr : that->attributes) {
cell->parameters["\\WIDTH"] = RTLIL::Const(left.size());
- cell->set("\\A", right);
- cell->set("\\B", left);
- cell->set("\\S", cond);
- cell->set("\\Y", wire);
+ cell->setPort("\\A", right);
+ cell->setPort("\\B", left);
+ cell->setPort("\\S", cond);
+ cell->setPort("\\Y", wire);
return wire;
}
AstNode *always;
RTLIL::SigSpec initSyncSignals;
RTLIL::Process *proc;
- const RTLIL::SigSpec &outputSignals;
+ RTLIL::SigSpec outputSignals;
// This always points to the RTLIL::CaseRule beeing filled at the moment
RTLIL::CaseRule *current_case;
- // This two variables contain the replacement pattern to be used in the right hand side
+ // This map contains the replacement pattern to be used in the right hand side
// of an assignment. E.g. in the code "foo = bar; foo = func(foo);" the foo in the right
// hand side of the 2nd assignment needs to be replace with the temporary signal holding
// the value assigned in the first assignment. So when the first assignement is processed
// the according information is appended to subst_rvalue_from and subst_rvalue_to.
- RTLIL::SigSpec subst_rvalue_from, subst_rvalue_to;
+ stackmap<RTLIL::SigBit, RTLIL::SigBit> subst_rvalue_map;
- // This two variables contain the replacement pattern to be used in the left hand side
+ // This map contains the replacement pattern to be used in the left hand side
// of an assignment. E.g. in the code "always @(posedge clk) foo <= bar" the signal bar
// should not be connected to the signal foo. Instead it must be connected to the temporary
// signal that is used as input for the register that drives the signal foo.
- RTLIL::SigSpec subst_lvalue_from, subst_lvalue_to;
+ stackmap<RTLIL::SigBit, RTLIL::SigBit> subst_lvalue_map;
// The code here generates a number of temprorary signal for each output register. This
// map helps generating nice numbered names for all this temporary signals.
// Buffer for generating the init action
RTLIL::SigSpec init_lvalue, init_rvalue;
- ProcessGenerator(AstNode *always, RTLIL::SigSpec initSyncSignalsArg = RTLIL::SigSpec()) : always(always), initSyncSignals(initSyncSignalsArg), outputSignals(subst_lvalue_from)
+ ProcessGenerator(AstNode *always, RTLIL::SigSpec initSyncSignalsArg = RTLIL::SigSpec()) : always(always), initSyncSignals(initSyncSignalsArg)
{
// generate process and simple root case
proc = new RTLIL::Process;
proc->attributes["\\src"] = stringf("%s:%d", always->filename.c_str(), always->linenum);
- proc->name = stringf("$proc$%s:%d$%d", always->filename.c_str(), always->linenum, RTLIL::autoidx++);
+ proc->name = stringf("$proc$%s:%d$%d", always->filename.c_str(), always->linenum, autoidx++);
for (auto &attr : always->attributes) {
if (attr.second->type != AST_CONSTANT)
log_error("Attribute `%s' with non-constant value at %s:%d!\n",
current_case = &proc->root_case;
// create initial temporary signal for all output registers
+ RTLIL::SigSpec subst_lvalue_from, subst_lvalue_to;
collect_lvalues(subst_lvalue_from, always, true, true);
subst_lvalue_to = new_temp_signal(subst_lvalue_from);
+ subst_lvalue_map = subst_lvalue_from.to_sigbit_map(subst_lvalue_to);
bool found_anyedge_syncs = false;
for (auto child : always->children)
// create initial assignments for the temporary signals
if ((flag_nolatches || always->get_bool_attribute("\\nolatches") || current_module->get_bool_attribute("\\nolatches")) && !found_clocked_sync) {
- subst_rvalue_from = subst_lvalue_from;
- subst_rvalue_to = RTLIL::SigSpec(RTLIL::State::Sx, subst_rvalue_from.size());
+ subst_rvalue_map = subst_lvalue_from.to_sigbit_map(RTLIL::SigSpec(RTLIL::State::Sx, GetSize(subst_lvalue_from)));
} else {
addChunkActions(current_case->actions, subst_lvalue_to, subst_lvalue_from);
}
sync->type = RTLIL::SyncType::STi;
proc->syncs.push_back(sync);
- assert(init_lvalue.size() == init_rvalue.size());
+ log_assert(init_lvalue.size() == init_rvalue.size());
int offset = 0;
for (auto &init_lvalue_c : init_lvalue.chunks()) {
RTLIL::SigSpec lhs = init_lvalue_c;
RTLIL::SigSpec rhs = init_rvalue.extract(offset, init_lvalue_c.width);
+ remove_unwanted_lvalue_bits(lhs, rhs);
sync->actions.push_back(RTLIL::SigSig(lhs, rhs));
offset += lhs.size();
}
}
+
+ outputSignals = RTLIL::SigSpec(subst_lvalue_from);
+ }
+
+ void remove_unwanted_lvalue_bits(RTLIL::SigSpec &lhs, RTLIL::SigSpec &rhs)
+ {
+ RTLIL::SigSpec new_lhs, new_rhs;
+
+ log_assert(GetSize(lhs) == GetSize(rhs));
+ for (int i = 0; i < GetSize(lhs); i++) {
+ if (lhs[i].wire == nullptr)
+ continue;
+ new_lhs.append(lhs[i]);
+ new_rhs.append(rhs[i]);
+ }
+
+ lhs = new_lhs;
+ rhs = new_rhs;
}
// create new temporary signals
{
std::vector<RTLIL::SigChunk> chunks = sig.chunks();
- for (int i = 0; i < SIZE(chunks); i++)
+ for (int i = 0; i < GetSize(chunks); i++)
{
RTLIL::SigChunk &chunk = chunks[i];
if (chunk.wire == NULL)
continue;
- RTLIL::Wire *wire = new RTLIL::Wire;
- wire->attributes["\\src"] = stringf("%s:%d", always->filename.c_str(), always->linenum);
+ std::string wire_name;
do {
- wire->name = stringf("$%d%s[%d:%d]", new_temp_count[chunk.wire]++,
+ wire_name = stringf("$%d%s[%d:%d]", new_temp_count[chunk.wire]++,
chunk.wire->name.c_str(), chunk.width+chunk.offset-1, chunk.offset);;
- if (chunk.wire->name.find('$') != std::string::npos)
- wire->name += stringf("$%d", RTLIL::autoidx++);
- } while (current_module->wires.count(wire->name) > 0);
- wire->width = chunk.width;
- current_module->wires[wire->name] = wire;
+ if (chunk.wire->name.str().find('$') != std::string::npos)
+ wire_name += stringf("$%d", autoidx++);
+ } while (current_module->wires_.count(wire_name) > 0);
+
+ RTLIL::Wire *wire = current_module->addWire(wire_name, chunk.width);
+ wire->attributes["\\src"] = stringf("%s:%d", always->filename.c_str(), always->linenum);
chunk.wire = wire;
chunk.offset = 0;
case AST_CASE:
for (auto child : ast->children)
if (child != ast->children[0]) {
- assert(child->type == AST_COND);
+ log_assert(child->type == AST_COND);
collect_lvalues(reg, child, type_eq, type_le, false);
}
break;
break;
default:
- assert(0);
+ log_abort();
}
- if (run_sort_and_unify)
- reg.sort_and_unify();
+ if (run_sort_and_unify) {
+ std::set<RTLIL::SigBit> sorted_reg;
+ for (auto bit : reg)
+ if (bit.wire)
+ sorted_reg.insert(bit);
+ reg = RTLIL::SigSpec(sorted_reg);
+ }
}
// remove all assignments to the given signal pattern in a case and all its children.
// e.g. when the last statement in the code "a = 23; if (b) a = 42; a = 0;" is processed this
// function is called to clean up the first two assignments as they are overwritten by
// the third assignment.
- void removeSignalFromCaseTree(RTLIL::SigSpec pattern, RTLIL::CaseRule *cs)
+ void removeSignalFromCaseTree(const std::set<RTLIL::SigBit> &pattern, RTLIL::CaseRule *cs)
{
for (auto it = cs->actions.begin(); it != cs->actions.end(); it++)
it->first.remove2(pattern, &it->second);
init_rvalue.append(lvalue.extract(initSyncSignals, &rvalue));
lvalue.remove2(initSyncSignals, &rvalue);
}
- assert(lvalue.size() == rvalue.size());
+ log_assert(lvalue.size() == rvalue.size());
int offset = 0;
for (auto &lvalue_c : lvalue.chunks()) {
RTLIL::SigSpec rhs = rvalue.extract(offset, lvalue_c.width);
if (inSyncRule && lvalue_c.wire && lvalue_c.wire->get_bool_attribute("\\nosync"))
rhs = RTLIL::SigSpec(RTLIL::State::Sx, rhs.size());
+ remove_unwanted_lvalue_bits(lhs, rhs);
actions.push_back(RTLIL::SigSig(lhs, rhs));
offset += lhs.size();
}
case AST_ASSIGN_LE:
{
RTLIL::SigSpec unmapped_lvalue = ast->children[0]->genRTLIL(), lvalue = unmapped_lvalue;
- RTLIL::SigSpec rvalue = ast->children[1]->genWidthRTLIL(lvalue.size(), &subst_rvalue_from, &subst_rvalue_to);
- lvalue.replace(subst_lvalue_from, subst_lvalue_to);
+ RTLIL::SigSpec rvalue = ast->children[1]->genWidthRTLIL(lvalue.size(), &subst_rvalue_map.stdmap());
+ lvalue.replace(subst_lvalue_map.stdmap());
if (ast->type == AST_ASSIGN_EQ) {
- subst_rvalue_from.remove2(unmapped_lvalue, &subst_rvalue_to);
- subst_rvalue_from.append(unmapped_lvalue);
- subst_rvalue_to.append(rvalue);
+ for (int i = 0; i < GetSize(unmapped_lvalue); i++)
+ subst_rvalue_map.set(unmapped_lvalue[i], rvalue[i]);
}
- removeSignalFromCaseTree(lvalue, current_case);
+ removeSignalFromCaseTree(lvalue.to_sigbit_set(), current_case);
+ remove_unwanted_lvalue_bits(lvalue, rvalue);
current_case->actions.push_back(RTLIL::SigSig(lvalue, rvalue));
}
break;
case AST_CASE:
{
RTLIL::SwitchRule *sw = new RTLIL::SwitchRule;
- sw->signal = ast->children[0]->genWidthRTLIL(-1, &subst_rvalue_from, &subst_rvalue_to);
+ sw->signal = ast->children[0]->genWidthRTLIL(-1, &subst_rvalue_map.stdmap());
current_case->switches.push_back(sw);
for (auto &attr : ast->attributes) {
RTLIL::SigSpec this_case_eq_ltemp = new_temp_signal(this_case_eq_lvalue);
RTLIL::SigSpec this_case_eq_rvalue = this_case_eq_lvalue;
- this_case_eq_rvalue.replace(subst_rvalue_from, subst_rvalue_to);
-
- RTLIL::SigSpec backup_subst_lvalue_from = subst_lvalue_from;
- RTLIL::SigSpec backup_subst_lvalue_to = subst_lvalue_to;
-
- RTLIL::SigSpec backup_subst_rvalue_from = subst_rvalue_from;
- RTLIL::SigSpec backup_subst_rvalue_to = subst_rvalue_to;
+ this_case_eq_rvalue.replace(subst_rvalue_map.stdmap());
RTLIL::CaseRule *default_case = NULL;
RTLIL::CaseRule *last_generated_case = NULL;
{
if (child == ast->children[0])
continue;
- assert(child->type == AST_COND);
+ log_assert(child->type == AST_COND);
- subst_lvalue_from = backup_subst_lvalue_from;
- subst_lvalue_to = backup_subst_lvalue_to;
+ subst_lvalue_map.save();
+ subst_rvalue_map.save();
- subst_rvalue_from = backup_subst_rvalue_from;
- subst_rvalue_to = backup_subst_rvalue_to;
-
- subst_lvalue_from.remove2(this_case_eq_lvalue, &subst_lvalue_to);
- subst_lvalue_from.append(this_case_eq_lvalue);
- subst_lvalue_to.append(this_case_eq_ltemp);
+ for (int i = 0; i < GetSize(this_case_eq_lvalue); i++)
+ subst_lvalue_map.set(this_case_eq_lvalue[i], this_case_eq_ltemp[i]);
RTLIL::CaseRule *backup_case = current_case;
current_case = new RTLIL::CaseRule;
else if (node->type == AST_BLOCK)
processAst(node);
else
- current_case->compare.push_back(node->genWidthRTLIL(sw->signal.size(), &subst_rvalue_from, &subst_rvalue_to));
+ current_case->compare.push_back(node->genWidthRTLIL(sw->signal.size(), &subst_rvalue_map.stdmap()));
}
if (default_case != current_case)
sw->cases.push_back(current_case);
else
log_assert(current_case->compare.size() == 0);
current_case = backup_case;
+
+ subst_lvalue_map.restore();
+ subst_rvalue_map.restore();
}
if (last_generated_case != NULL && ast->get_bool_attribute("\\full_case") && default_case == NULL) {
sw->cases.push_back(default_case);
}
- subst_lvalue_from = backup_subst_lvalue_from;
- subst_lvalue_to = backup_subst_lvalue_to;
-
- subst_rvalue_from = backup_subst_rvalue_from;
- subst_rvalue_to = backup_subst_rvalue_to;
+ for (int i = 0; i < GetSize(this_case_eq_lvalue); i++)
+ subst_rvalue_map.set(this_case_eq_lvalue[i], this_case_eq_ltemp[i]);
- subst_rvalue_from.remove2(this_case_eq_lvalue, &subst_rvalue_to);
- subst_rvalue_from.append(this_case_eq_lvalue);
- subst_rvalue_to.append(this_case_eq_ltemp);
-
- this_case_eq_lvalue.replace(subst_lvalue_from, subst_lvalue_to);
- removeSignalFromCaseTree(this_case_eq_lvalue, current_case);
+ this_case_eq_lvalue.replace(subst_lvalue_map.stdmap());
+ removeSignalFromCaseTree(this_case_eq_lvalue.to_sigbit_set(), current_case);
addChunkActions(current_case->actions, this_case_eq_lvalue, this_case_eq_ltemp);
}
break;
delete right_at_zero_ast;
} else
this_width = range->range_left - range->range_right + 1;
- } else
- width_hint = std::max(width_hint, this_width);
+ sign_hint = false;
+ }
+ width_hint = std::max(width_hint, this_width);
if (!id_ast->is_signed)
sign_hint = false;
break;
// and are only accessed here thru this references
case AST_TASK:
case AST_FUNCTION:
+ case AST_DPI_FUNCTION:
case AST_AUTOWIRE:
case AST_LOCALPARAM:
case AST_DEFPARAM:
// create an RTLIL::Wire for an AST_WIRE node
case AST_WIRE: {
- if (current_module->wires.count(str) != 0)
+ if (current_module->wires_.count(str) != 0)
log_error("Re-definition of signal `%s' at %s:%d!\n",
str.c_str(), filename.c_str(), linenum);
if (!range_valid)
log_error("Signal `%s' with non-constant width at %s:%d!\n",
str.c_str(), filename.c_str(), linenum);
- if (range_left < range_right && (range_left != -1 || range_right != 0)) {
- int tmp = range_left;
- range_left = range_right;
- range_right = tmp;
- }
+ log_assert(range_left >= range_right || (range_left == -1 && range_right == 0));
- RTLIL::Wire *wire = new RTLIL::Wire;
+ RTLIL::Wire *wire = current_module->addWire(str, range_left - range_right + 1);
wire->attributes["\\src"] = stringf("%s:%d", filename.c_str(), linenum);
- wire->name = str;
- wire->width = range_left - range_right + 1;
wire->start_offset = range_right;
wire->port_id = port_id;
wire->port_input = is_input;
wire->port_output = is_output;
- current_module->wires[wire->name] = wire;
+ wire->upto = range_swapped;
for (auto &attr : attributes) {
if (attr.second->type != AST_CONSTANT)
log_error("Re-definition of memory `%s' at %s:%d!\n",
str.c_str(), filename.c_str(), linenum);
- assert(children.size() >= 2);
- assert(children[0]->type == AST_RANGE);
- assert(children[1]->type == AST_RANGE);
+ log_assert(children.size() >= 2);
+ log_assert(children[0]->type == AST_RANGE);
+ log_assert(children[1]->type == AST_RANGE);
if (!children[0]->range_valid || !children[1]->range_valid)
log_error("Memory `%s' with non-constant width or size at %s:%d!\n",
case AST_REALVALUE:
{
RTLIL::SigSpec sig = realAsConst(width_hint);
- log("Warning: converting real value %e to binary %s at %s:%d.\n",
+ log_warning("converting real value %e to binary %s at %s:%d.\n",
realvalue, log_signal(sig), filename.c_str(), linenum);
return sig;
}
RTLIL::Wire *wire = NULL;
RTLIL::SigChunk chunk;
- if (id2ast && id2ast->type == AST_AUTOWIRE && current_module->wires.count(str) == 0) {
- RTLIL::Wire *wire = new RTLIL::Wire;
+ int add_undef_bits_msb = 0;
+ int add_undef_bits_lsb = 0;
+
+ if (id2ast && id2ast->type == AST_AUTOWIRE && current_module->wires_.count(str) == 0) {
+ RTLIL::Wire *wire = current_module->addWire(str);
wire->attributes["\\src"] = stringf("%s:%d", filename.c_str(), linenum);
wire->name = str;
if (flag_autowire)
- log("Warning: Identifier `%s' is implicitly declared at %s:%d.\n", str.c_str(), filename.c_str(), linenum);
+ log_warning("Identifier `%s' is implicitly declared at %s:%d.\n", str.c_str(), filename.c_str(), linenum);
else
log_error("Identifier `%s' is implicitly declared at %s:%d and `default_nettype is set to none.\n", str.c_str(), filename.c_str(), linenum);
- current_module->wires[str] = wire;
}
else if (id2ast->type == AST_PARAMETER || id2ast->type == AST_LOCALPARAM) {
if (id2ast->children[0]->type != AST_CONSTANT)
goto use_const_chunk;
}
else if (!id2ast || (id2ast->type != AST_WIRE && id2ast->type != AST_AUTOWIRE &&
- id2ast->type != AST_MEMORY) || current_module->wires.count(str) == 0)
+ id2ast->type != AST_MEMORY) || current_module->wires_.count(str) == 0)
log_error("Identifier `%s' doesn't map to any signal at %s:%d!\n",
str.c_str(), filename.c_str(), linenum);
log_error("Identifier `%s' does map to an unexpanded memory at %s:%d!\n",
str.c_str(), filename.c_str(), linenum);
- wire = current_module->wires[str];
+ wire = current_module->wires_[str];
chunk.wire = wire;
chunk.width = wire->width;
chunk.offset = 0;
use_const_chunk:
if (children.size() != 0) {
- assert(children[0]->type == AST_RANGE);
+ log_assert(children[0]->type == AST_RANGE);
+ int source_width = id2ast->range_left - id2ast->range_right + 1;
+ int source_offset = id2ast->range_right;
if (!children[0]->range_valid) {
AstNode *left_at_zero_ast = children[0]->children[0]->clone();
AstNode *right_at_zero_ast = children[0]->children.size() >= 2 ? children[0]->children[1]->clone() : left_at_zero_ast->clone();
AstNode *fake_ast = new AstNode(AST_NONE, clone(), children[0]->children.size() >= 2 ?
children[0]->children[1]->clone() : children[0]->children[0]->clone());
fake_ast->children[0]->delete_children();
- RTLIL::SigSpec sig = binop2rtlil(fake_ast, "$shr", width,
- fake_ast->children[0]->genRTLIL(), fake_ast->children[1]->genRTLIL());
+ RTLIL::SigSpec shift_val = fake_ast->children[1]->genRTLIL();
+ if (id2ast->range_right != 0) {
+ shift_val = current_module->Sub(NEW_ID, shift_val, id2ast->range_right, fake_ast->children[1]->is_signed);
+ fake_ast->children[1]->is_signed = true;
+ }
+ if (id2ast->range_swapped) {
+ shift_val = current_module->Sub(NEW_ID, RTLIL::SigSpec(source_width - width), shift_val, fake_ast->children[1]->is_signed);
+ fake_ast->children[1]->is_signed = true;
+ }
+ if (GetSize(shift_val) >= 32)
+ fake_ast->children[1]->is_signed = true;
+ RTLIL::SigSpec sig = binop2rtlil(fake_ast, "$shiftx", width, fake_ast->children[0]->genRTLIL(), shift_val);
delete left_at_zero_ast;
delete right_at_zero_ast;
delete fake_ast;
return sig;
} else {
- chunk.offset = children[0]->range_right - id2ast->range_right;
chunk.width = children[0]->range_left - children[0]->range_right + 1;
- if (children[0]->range_left > id2ast->range_left || id2ast->range_right > children[0]->range_right)
- log_error("Range select out of bounds on signal `%s' at %s:%d!\n",
- str.c_str(), filename.c_str(), linenum);
+ chunk.offset = children[0]->range_right - source_offset;
+ if (id2ast->range_swapped)
+ chunk.offset = (id2ast->range_left - id2ast->range_right + 1) - (chunk.offset + chunk.width);
+ if (chunk.offset >= source_width || chunk.offset + chunk.width < 0) {
+ if (chunk.width == 1)
+ log_warning("Range select out of bounds on signal `%s' at %s:%d: Setting result bit to undef.\n",
+ str.c_str(), filename.c_str(), linenum);
+ else
+ log_warning("Range select out of bounds on signal `%s' at %s:%d: Setting all %d result bits to undef.\n",
+ str.c_str(), filename.c_str(), linenum, chunk.width);
+ chunk = RTLIL::SigChunk(RTLIL::State::Sx, chunk.width);
+ } else {
+ if (chunk.width + chunk.offset > source_width) {
+ add_undef_bits_msb = (chunk.width + chunk.offset) - source_width;
+ chunk.width -= add_undef_bits_msb;
+ }
+ if (chunk.offset < 0) {
+ add_undef_bits_lsb = -chunk.offset;
+ chunk.width -= add_undef_bits_lsb;
+ chunk.offset += add_undef_bits_lsb;
+ }
+ if (add_undef_bits_lsb)
+ log_warning("Range select out of bounds on signal `%s' at %s:%d: Setting %d LSB bits to undef.\n",
+ str.c_str(), filename.c_str(), linenum, add_undef_bits_lsb);
+ if (add_undef_bits_msb)
+ log_warning("Range select out of bounds on signal `%s' at %s:%d: Setting %d MSB bits to undef.\n",
+ str.c_str(), filename.c_str(), linenum, add_undef_bits_msb);
+ }
}
}
- RTLIL::SigSpec sig(chunk);
+ RTLIL::SigSpec sig = { RTLIL::SigSpec(RTLIL::State::Sx, add_undef_bits_msb), chunk, RTLIL::SigSpec(RTLIL::State::Sx, add_undef_bits_lsb) };
- if (genRTLIL_subst_from && genRTLIL_subst_to)
- sig.replace(*genRTLIL_subst_from, *genRTLIL_subst_to);
+ if (genRTLIL_subst_ptr)
+ sig.replace(*genRTLIL_subst_ptr);
is_signed = children.size() > 0 ? false : id2ast->is_signed && sign_hint;
return sig;
int width = arg.size();
if (width_hint > 0) {
width = width_hint;
- widthExtend(this, arg, width, is_signed, "$pos");
+ widthExtend(this, arg, width, is_signed);
}
return uniop2rtlil(this, type_name, width, arg);
}
int width = std::max(val1.size(), val2.size());
is_signed = children[1]->is_signed && children[2]->is_signed;
- widthExtend(this, val1, width, is_signed, "$bu0");
- widthExtend(this, val2, width, is_signed, "$bu0");
+ widthExtend(this, val1, width, is_signed);
+ widthExtend(this, val2, width, is_signed);
RTLIL::SigSpec sig = mux2rtlil(this, cond, val1, val2);
case AST_MEMRD:
{
std::stringstream sstr;
- sstr << "$memrd$" << str << "$" << filename << ":" << linenum << "$" << (RTLIL::autoidx++);
+ sstr << "$memrd$" << str << "$" << filename << ":" << linenum << "$" << (autoidx++);
RTLIL::Cell *cell = current_module->addCell(sstr.str(), "$memrd");
cell->attributes["\\src"] = stringf("%s:%d", filename.c_str(), linenum);
- RTLIL::Wire *wire = current_module->addWire(cell->name + "_DATA", current_module->memories[str]->width);
+ RTLIL::Wire *wire = current_module->addWire(cell->name.str() + "_DATA", current_module->memories[str]->width);
wire->attributes["\\src"] = stringf("%s:%d", filename.c_str(), linenum);
int addr_bits = 1;
while ((1 << addr_bits) < current_module->memories[str]->size)
addr_bits++;
- cell->set("\\CLK", RTLIL::SigSpec(RTLIL::State::Sx, 1));
- cell->set("\\ADDR", children[0]->genWidthRTLIL(addr_bits));
- cell->set("\\DATA", RTLIL::SigSpec(wire));
+ cell->setPort("\\CLK", RTLIL::SigSpec(RTLIL::State::Sx, 1));
+ cell->setPort("\\ADDR", children[0]->genWidthRTLIL(addr_bits));
+ cell->setPort("\\DATA", RTLIL::SigSpec(wire));
cell->parameters["\\MEMID"] = RTLIL::Const(str);
cell->parameters["\\ABITS"] = RTLIL::Const(addr_bits);
case AST_MEMWR:
{
std::stringstream sstr;
- sstr << "$memwr$" << str << "$" << filename << ":" << linenum << "$" << (RTLIL::autoidx++);
+ sstr << "$memwr$" << str << "$" << filename << ":" << linenum << "$" << (autoidx++);
RTLIL::Cell *cell = current_module->addCell(sstr.str(), "$memwr");
cell->attributes["\\src"] = stringf("%s:%d", filename.c_str(), linenum);
while ((1 << addr_bits) < current_module->memories[str]->size)
addr_bits++;
- cell->set("\\CLK", RTLIL::SigSpec(RTLIL::State::Sx, 1));
- cell->set("\\ADDR", children[0]->genWidthRTLIL(addr_bits));
- cell->set("\\DATA", children[1]->genWidthRTLIL(current_module->memories[str]->width));
- cell->set("\\EN", children[2]->genRTLIL());
+ cell->setPort("\\CLK", RTLIL::SigSpec(RTLIL::State::Sx, 1));
+ cell->setPort("\\ADDR", children[0]->genWidthRTLIL(addr_bits));
+ cell->setPort("\\DATA", children[1]->genWidthRTLIL(current_module->memories[str]->width));
+ cell->setPort("\\EN", children[2]->genRTLIL());
cell->parameters["\\MEMID"] = RTLIL::Const(str);
cell->parameters["\\ABITS"] = RTLIL::Const(addr_bits);
cell->parameters["\\CLK_ENABLE"] = RTLIL::Const(0);
cell->parameters["\\CLK_POLARITY"] = RTLIL::Const(0);
- cell->parameters["\\PRIORITY"] = RTLIL::Const(RTLIL::autoidx-1);
+ cell->parameters["\\PRIORITY"] = RTLIL::Const(autoidx-1);
}
break;
log_assert(en.size() == 1);
std::stringstream sstr;
- sstr << "$assert$" << filename << ":" << linenum << "$" << (RTLIL::autoidx++);
+ sstr << "$assert$" << filename << ":" << linenum << "$" << (autoidx++);
RTLIL::Cell *cell = current_module->addCell(sstr.str(), "$assert");
cell->attributes["\\src"] = stringf("%s:%d", filename.c_str(), linenum);
cell->attributes[attr.first] = attr.second->asAttrConst();
}
- cell->set("\\A", check);
- cell->set("\\EN", en);
+ cell->setPort("\\A", check);
+ cell->setPort("\\EN", en);
}
break;
if (child->str.size() == 0) {
char buf[100];
snprintf(buf, 100, "$%d", ++port_counter);
- cell->set(buf, sig);
+ cell->setPort(buf, sig);
} else {
- cell->set(child->str, sig);
+ cell->setPort(child->str, sig);
}
continue;
}
- assert(0);
+ log_abort();
}
for (auto &attr : attributes) {
if (attr.second->type != AST_CONSTANT)
// this is a wrapper for AstNode::genRTLIL() when a specific signal width is requested and/or
// signals must be substituted before beeing used as input values (used by ProcessGenerator)
// note that this is using some global variables to communicate this special settings to AstNode::genRTLIL().
-RTLIL::SigSpec AstNode::genWidthRTLIL(int width, RTLIL::SigSpec *subst_from, RTLIL::SigSpec *subst_to)
+RTLIL::SigSpec AstNode::genWidthRTLIL(int width, const std::map<RTLIL::SigBit, RTLIL::SigBit> *new_subst_ptr)
{
- RTLIL::SigSpec *backup_subst_from = genRTLIL_subst_from;
- RTLIL::SigSpec *backup_subst_to = genRTLIL_subst_to;
+ const std::map<RTLIL::SigBit, RTLIL::SigBit> *backup_subst_ptr = genRTLIL_subst_ptr;
- if (subst_from)
- genRTLIL_subst_from = subst_from;
- if (subst_to)
- genRTLIL_subst_to = subst_to;
+ if (new_subst_ptr)
+ genRTLIL_subst_ptr = new_subst_ptr;
bool sign_hint = true;
int width_hint = width;
detectSignWidthWorker(width_hint, sign_hint);
RTLIL::SigSpec sig = genRTLIL(width_hint, sign_hint);
- genRTLIL_subst_from = backup_subst_from;
- genRTLIL_subst_to = backup_subst_to;
+ genRTLIL_subst_ptr = backup_subst_ptr;
if (width >= 0)
sig.extend_u0(width, is_signed);
return sig;
}
+YOSYS_NAMESPACE_END
+
projects / yosys.git / blobdiff