diff options
Diffstat (limited to 'frontends/verilog')
| -rw-r--r-- | frontends/verilog/Makefile.inc | 2 | ||||
| -rw-r--r-- | frontends/verilog/const2ast.cc | 26 | ||||
| -rw-r--r-- | frontends/verilog/verilog_lexer.l | 4 | ||||
| -rw-r--r-- | frontends/verilog/verilog_parser.y | 22 |
4 files changed, 40 insertions, 14 deletions
diff --git a/frontends/verilog/Makefile.inc b/frontends/verilog/Makefile.inc index 0a1f97ac0..6a8462b41 100644 --- a/frontends/verilog/Makefile.inc +++ b/frontends/verilog/Makefile.inc @@ -14,7 +14,7 @@ frontends/verilog/verilog_lexer.cc: frontends/verilog/verilog_lexer.l $(Q) mkdir -p $(dir $@) $(P) flex -o frontends/verilog/verilog_lexer.cc $< -frontends/verilog/verilog_parser.tab.o: CXXFLAGS += -DYYMAXDEPTH=100000 +frontends/verilog/verilog_parser.tab.o: CXXFLAGS += -DYYMAXDEPTH=10000000 OBJS += frontends/verilog/verilog_parser.tab.o OBJS += frontends/verilog/verilog_lexer.o diff --git a/frontends/verilog/const2ast.cc b/frontends/verilog/const2ast.cc index 7848c626d..57d366dbf 100644 --- a/frontends/verilog/const2ast.cc +++ b/frontends/verilog/const2ast.cc @@ -71,7 +71,7 @@ static int my_ilog2(int x) } // parse a binary, decimal, hexadecimal or octal number with support for special bits ('x', 'z' and '?') -static void my_strtobin(std::vector<RTLIL::State> &data, const char *str, int len_in_bits, int base, char case_type) +static void my_strtobin(std::vector<RTLIL::State> &data, const char *str, int len_in_bits, int base, char case_type, bool is_unsized) { // all digits in string (MSB at index 0) std::vector<uint8_t> digits; @@ -129,6 +129,9 @@ static void my_strtobin(std::vector<RTLIL::State> &data, const char *str, int le return; } + if (is_unsized && (len > len_in_bits)) + log_file_error(current_filename, get_line_num(), "Unsized constant must have width of 1 bit, but have %d bits!\n", len); + for (len = len - 1; len >= 0; len--) if (data[len] == RTLIL::S1) break; @@ -186,7 +189,7 @@ AstNode *VERILOG_FRONTEND::const2ast(std::string code, char case_type, bool warn // Simple base-10 integer if (*endptr == 0) { std::vector<RTLIL::State> data; - my_strtobin(data, str, -1, 10, case_type); + my_strtobin(data, str, -1, 10, case_type, false); if (data.back() == RTLIL::S1) data.push_back(RTLIL::S0); return AstNode::mkconst_bits(data, true); @@ -201,6 +204,7 @@ AstNode *VERILOG_FRONTEND::const2ast(std::string code, char case_type, bool warn { std::vector<RTLIL::State> data; bool is_signed = false; + bool is_unsized = false; if (*(endptr+1) == 's') { is_signed = true; endptr++; @@ -209,28 +213,34 @@ AstNode *VERILOG_FRONTEND::const2ast(std::string code, char case_type, bool warn { case 'b': case 'B': - my_strtobin(data, endptr+2, len_in_bits, 2, case_type); + my_strtobin(data, endptr+2, len_in_bits, 2, case_type, false); break; case 'o': case 'O': - my_strtobin(data, endptr+2, len_in_bits, 8, case_type); + my_strtobin(data, endptr+2, len_in_bits, 8, case_type, false); break; case 'd': case 'D': - my_strtobin(data, endptr+2, len_in_bits, 10, case_type); + my_strtobin(data, endptr+2, len_in_bits, 10, case_type, false); break; case 'h': case 'H': - my_strtobin(data, endptr+2, len_in_bits, 16, case_type); + my_strtobin(data, endptr+2, len_in_bits, 16, case_type, false); break; default: - return NULL; + char next_char = char(tolower(*(endptr+1))); + if (next_char == '0' || next_char == '1' || next_char == 'x' || next_char == 'z') { + my_strtobin(data, endptr+1, 1, 2, case_type, true); + is_unsized = true; + } else { + return NULL; + } } if (len_in_bits < 0) { if (is_signed && data.back() == RTLIL::S1) data.push_back(RTLIL::S0); } - return AstNode::mkconst_bits(data, is_signed); + return AstNode::mkconst_bits(data, is_signed, is_unsized); } return NULL; diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index 142d05d45..9558bbfb9 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -218,6 +218,8 @@ YOSYS_NAMESPACE_END "output" { return TOK_OUTPUT; } "inout" { return TOK_INOUT; } "wire" { return TOK_WIRE; } +"wor" { return TOK_WOR; } +"wand" { return TOK_WAND; } "reg" { return TOK_REG; } "integer" { return TOK_INTEGER; } "signed" { return TOK_SIGNED; } @@ -232,7 +234,7 @@ YOSYS_NAMESPACE_END return TOK_CONSTVAL; } -[0-9]*[ \t]*\'s?[bodhBODH][ \t\r\n]*[0-9a-fA-FzxZX?_]+ { +[0-9]*[ \t]*\'s?[bodhBODH]*[ \t\r\n]*[0-9a-fA-FzxZX?_]+ { frontend_verilog_yylval.string = new std::string(yytext); return TOK_CONSTVAL; } diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index d23009e60..8244a8f44 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -112,6 +112,15 @@ struct specify_rise_fall { %define api.prefix {frontend_verilog_yy} +/* The union is defined in the header, so we need to provide all the + * includes it requires + */ +%code requires { +#include <map> +#include <string> +#include "frontends/verilog/verilog_frontend.h" +} + %union { std::string *string; struct YOSYS_NAMESPACE_PREFIX AST::AstNode *ast; @@ -130,7 +139,7 @@ struct specify_rise_fall { %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_INPUT TOK_OUTPUT TOK_INOUT TOK_WIRE TOK_REG TOK_LOGIC +%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_BEGIN TOK_END TOK_IF TOK_ELSE TOK_FOR TOK_WHILE TOK_REPEAT %token TOK_DPI_FUNCTION TOK_POSEDGE TOK_NEGEDGE TOK_OR TOK_AUTOMATIC @@ -476,6 +485,12 @@ wire_type_token_io: wire_type_token: TOK_WIRE { } | + TOK_WOR { + astbuf3->is_wor = true; + } | + TOK_WAND { + astbuf3->is_wand = true; + } | TOK_REG { astbuf3->is_reg = true; } | @@ -1193,7 +1208,7 @@ param_range: }; param_decl: - TOK_PARAMETER { + attr TOK_PARAMETER { astbuf1 = new AstNode(AST_PARAMETER); astbuf1->children.push_back(AstNode::mkconst_int(0, true)); } param_signed param_integer param_real param_range param_decl_list ';' { @@ -1201,7 +1216,7 @@ param_decl: }; localparam_decl: - TOK_LOCALPARAM { + attr TOK_LOCALPARAM { astbuf1 = new AstNode(AST_LOCALPARAM); astbuf1->children.push_back(AstNode::mkconst_int(0, true)); } param_signed param_integer param_real param_range param_decl_list ';' { @@ -2418,4 +2433,3 @@ concat_list: $$ = $3; $$->children.push_back($1); }; - |