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-rw-r--r--frontends/ast/ast.h1
-rw-r--r--frontends/ast/simplify.cc202
-rw-r--r--frontends/verific/verific.cc8
-rw-r--r--frontends/verilog/verilog_lexer.l2
-rw-r--r--frontends/verilog/verilog_parser.y7
5 files changed, 126 insertions, 94 deletions
diff --git a/frontends/ast/ast.h b/frontends/ast/ast.h
index 918d178c7..14e1cec5e 100644
--- a/frontends/ast/ast.h
+++ b/frontends/ast/ast.h
@@ -244,6 +244,7 @@ namespace AST
void replace_variables(std::map<std::string, varinfo_t> &variables, AstNode *fcall);
AstNode *eval_const_function(AstNode *fcall);
bool is_simple_const_expr();
+ std::string process_format_str(const std::string &sformat, int next_arg, int stage, int width_hint, bool sign_hint);
// create a human-readable text representation of the AST (for debugging)
void dumpAst(FILE *f, std::string indent) const;
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index b94a8d710..8855d9954 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -41,6 +41,103 @@ YOSYS_NAMESPACE_BEGIN
using namespace AST;
using namespace AST_INTERNAL;
+// Process a format string and arguments for $display, $write, $sprintf, etc
+
+std::string AstNode::process_format_str(const std::string &sformat, int next_arg, int stage, int width_hint, bool sign_hint) {
+ // Other arguments are placeholders. Process the string as we go through it
+ std::string sout;
+ for (size_t i = 0; i < sformat.length(); i++)
+ {
+ // format specifier
+ if (sformat[i] == '%')
+ {
+ // If there's no next character, that's a problem
+ if (i+1 >= sformat.length())
+ log_file_error(filename, linenum, "System task `%s' called with `%%' at end of string.\n", str.c_str());
+
+ char cformat = sformat[++i];
+
+ // %% is special, does not need a matching argument
+ if (cformat == '%')
+ {
+ sout += '%';
+ continue;
+ }
+
+ // Simplify the argument
+ AstNode *node_arg = nullptr;
+
+ // Everything from here on depends on the format specifier
+ switch (cformat)
+ {
+ case 's':
+ case 'S':
+ case 'd':
+ case 'D':
+ case 'x':
+ case 'X':
+ if (next_arg >= GetSize(children))
+ log_file_error(filename, linenum, "Missing argument for %%%c format specifier in system task `%s'.\n",
+ cformat, str.c_str());
+
+ node_arg = children[next_arg++];
+ while (node_arg->simplify(true, false, false, stage, width_hint, sign_hint, false)) { }
+ if (node_arg->type != AST_CONSTANT)
+ log_file_error(filename, linenum, "Failed to evaluate system task `%s' with non-constant argument.\n", str.c_str());
+ break;
+
+ case 'm':
+ case 'M':
+ break;
+
+ default:
+ log_file_error(filename, linenum, "System task `%s' called with invalid/unsupported format specifier.\n", str.c_str());
+ break;
+ }
+
+ switch (cformat)
+ {
+ case 's':
+ case 'S':
+ sout += node_arg->bitsAsConst().decode_string();
+ break;
+
+ case 'd':
+ case 'D':
+ {
+ char tmp[128];
+ snprintf(tmp, sizeof(tmp), "%d", node_arg->bitsAsConst().as_int());
+ sout += tmp;
+ }
+ break;
+
+ case 'x':
+ case 'X':
+ {
+ char tmp[128];
+ snprintf(tmp, sizeof(tmp), "%x", node_arg->bitsAsConst().as_int());
+ sout += tmp;
+ }
+ break;
+
+ case 'm':
+ case 'M':
+ sout += log_id(current_module->name);
+ break;
+
+ default:
+ log_abort();
+ }
+ }
+
+ // not a format specifier
+ else
+ sout += sformat[i];
+ }
+ return sout;
+}
+
+
// convert the AST into a simpler AST that has all parameters substituted by their
// values, unrolled for-loops, expanded generate blocks, etc. when this function
// is done with an AST it can be converted into RTLIL using genRTLIL().
@@ -216,99 +313,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
if (node_string->type != AST_CONSTANT)
log_file_error(filename, linenum, "Failed to evaluate system task `%s' with non-constant 1st argument.\n", str.c_str());
std::string sformat = node_string->bitsAsConst().decode_string();
-
- // Other arguments are placeholders. Process the string as we go through it
- std::string sout;
- int next_arg = 1;
- for (size_t i = 0; i < sformat.length(); i++)
- {
- // format specifier
- if (sformat[i] == '%')
- {
- // If there's no next character, that's a problem
- if (i+1 >= sformat.length())
- log_file_error(filename, linenum, "System task `%s' called with `%%' at end of string.\n", str.c_str());
-
- char cformat = sformat[++i];
-
- // %% is special, does not need a matching argument
- if (cformat == '%')
- {
- sout += '%';
- continue;
- }
-
- // Simplify the argument
- AstNode *node_arg = nullptr;
-
- // Everything from here on depends on the format specifier
- switch (cformat)
- {
- case 's':
- case 'S':
- case 'd':
- case 'D':
- case 'x':
- case 'X':
- if (next_arg >= GetSize(children))
- log_file_error(filename, linenum, "Missing argument for %%%c format specifier in system task `%s'.\n",
- cformat, str.c_str());
-
- node_arg = children[next_arg++];
- while (node_arg->simplify(true, false, false, stage, width_hint, sign_hint, false)) { }
- if (node_arg->type != AST_CONSTANT)
- log_file_error(filename, linenum, "Failed to evaluate system task `%s' with non-constant argument.\n", str.c_str());
- break;
-
- case 'm':
- case 'M':
- break;
-
- default:
- log_file_error(filename, linenum, "System task `%s' called with invalid/unsupported format specifier.\n", str.c_str());
- break;
- }
-
- switch (cformat)
- {
- case 's':
- case 'S':
- sout += node_arg->bitsAsConst().decode_string();
- break;
-
- case 'd':
- case 'D':
- {
- char tmp[128];
- snprintf(tmp, sizeof(tmp), "%d", node_arg->bitsAsConst().as_int());
- sout += tmp;
- }
- break;
-
- case 'x':
- case 'X':
- {
- char tmp[128];
- snprintf(tmp, sizeof(tmp), "%x", node_arg->bitsAsConst().as_int());
- sout += tmp;
- }
- break;
-
- case 'm':
- case 'M':
- sout += log_id(current_module->name);
- break;
-
- default:
- log_abort();
- }
- }
-
- // not a format specifier
- else
- sout += sformat[i];
- }
-
+ std::string sout = process_format_str(sformat, 1, stage, width_hint, sign_hint);
// Finally, print the message (only include a \n for $display, not for $write)
log("%s", sout.c_str());
if (str == "$display")
@@ -2244,6 +2249,17 @@ skip_dynamic_range_lvalue_expansion:;
goto apply_newNode;
}
+ if (str == "\\$sformatf") {
+ AstNode *node_string = children[0];
+ while (node_string->simplify(true, false, false, stage, width_hint, sign_hint, false)) { }
+ if (node_string->type != AST_CONSTANT)
+ log_file_error(filename, linenum, "Failed to evaluate system function `%s' with non-constant 1st argument.\n", str.c_str());
+ std::string sformat = node_string->bitsAsConst().decode_string();
+ std::string sout = process_format_str(sformat, 1, stage, width_hint, sign_hint);
+ newNode = AstNode::mkconst_str(sout);
+ goto apply_newNode;
+ }
+
if (current_scope.count(str) != 0 && current_scope[str]->type == AST_DPI_FUNCTION)
{
AstNode *dpi_decl = current_scope[str];
diff --git a/frontends/verific/verific.cc b/frontends/verific/verific.cc
index 33f73f2d0..ae5815f8e 100644
--- a/frontends/verific/verific.cc
+++ b/frontends/verific/verific.cc
@@ -539,6 +539,14 @@ bool VerificImporter::import_netlist_instance_cells(Instance *inst, RTLIL::IdStr
return true;
}
+ if (inst->Type() == OPER_REDUCE_NAND) {
+ Wire *tmp = module->addWire(NEW_ID);
+ cell = module->addReduceAnd(inst_name, IN, tmp, SIGNED);
+ module->addNot(NEW_ID, tmp, net_map_at(inst->GetOutput()));
+ import_attributes(cell->attributes, inst);
+ return true;
+ }
+
if (inst->Type() == OPER_REDUCE_OR) {
cell = module->addReduceOr(inst_name, IN, net_map_at(inst->GetOutput()), SIGNED);
import_attributes(cell->attributes, inst);
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l
index ca23df3e8..9b43c250e 100644
--- a/frontends/verilog/verilog_lexer.l
+++ b/frontends/verilog/verilog_lexer.l
@@ -431,6 +431,8 @@ import[ \t\r\n]+\"(DPI|DPI-C)\"[ \t\r\n]+function[ \t\r\n]+ {
"+:" { return TOK_POS_INDEXED; }
"-:" { return TOK_NEG_INDEXED; }
+".*" { return TOK_WILDCARD_CONNECT; }
+
[-+]?[=*]> {
if (!specify_mode) REJECT;
frontend_verilog_yylval.string = new std::string(yytext);
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index a30935e0a..2c7304cc4 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -138,7 +138,7 @@ struct specify_rise_fall {
%token ATTR_BEGIN ATTR_END DEFATTR_BEGIN DEFATTR_END
%token TOK_MODULE TOK_ENDMODULE TOK_PARAMETER TOK_LOCALPARAM TOK_DEFPARAM
%token TOK_PACKAGE TOK_ENDPACKAGE TOK_PACKAGESEP
-%token TOK_INTERFACE TOK_ENDINTERFACE TOK_MODPORT TOK_VAR
+%token TOK_INTERFACE TOK_ENDINTERFACE TOK_MODPORT TOK_VAR TOK_WILDCARD_CONNECT
%token TOK_INPUT TOK_OUTPUT TOK_INOUT TOK_WIRE TOK_WAND TOK_WOR TOK_REG TOK_LOGIC
%token TOK_INTEGER TOK_SIGNED TOK_ASSIGN TOK_ALWAYS TOK_INITIAL
%token TOK_ALWAYS_FF TOK_ALWAYS_COMB TOK_ALWAYS_LATCH
@@ -1580,6 +1580,11 @@ cell_port:
node->children.back()->str = *$3;
delete $3;
free_attr($1);
+ } |
+ attr TOK_WILDCARD_CONNECT {
+ if (!sv_mode)
+ frontend_verilog_yyerror("Wildcard port connections are only supported in SystemVerilog mode.");
+ astbuf2->attributes[ID(wildcard_port_conns)] = AstNode::mkconst_int(1, false);
};
always_comb_or_latch:
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-04 13:33:43 +0000