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| author | Clifford Wolf <clifford@clifford.at> | 2013-11-20 10:51:32 +0100 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2013-11-20 10:51:32 +0100 |
| commit | 19dba2561ece488543e1728ba800386943abb77c (patch) | |
| tree | 1388ba1895b2caba3f832ac0646c1224cfe1e619 /frontends/verilog | |
| parent | d248419fe0ec1f35d2f18b4f4aaf2c9525588fac (diff) | |
| download | yosys-19dba2561ece488543e1728ba800386943abb77c.tar.gz yosys-19dba2561ece488543e1728ba800386943abb77c.tar.bz2 yosys-19dba2561ece488543e1728ba800386943abb77c.zip | |
Implemented part/bit select on memory read
Diffstat (limited to 'frontends/verilog')
| -rw-r--r-- | frontends/verilog/parser.y | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/frontends/verilog/parser.y b/frontends/verilog/parser.y index 24c84514f..c4f386ce5 100644 --- a/frontends/verilog/parser.y +++ b/frontends/verilog/parser.y @@ -105,7 +105,7 @@ static void free_attr(std::map<std::string, AstNode*> *al) %token TOK_SYNOPSYS_FULL_CASE TOK_SYNOPSYS_PARALLEL_CASE %token TOK_SUPPLY0 TOK_SUPPLY1 TOK_TO_SIGNED TOK_TO_UNSIGNED -%type <ast> wire_type range expr basic_expr concat_list rvalue lvalue lvalue_concat_list +%type <ast> wire_type range non_opt_range expr basic_expr concat_list rvalue lvalue lvalue_concat_list %type <string> opt_label tok_prim_wrapper hierarchical_id %type <boolean> opt_signed %type <al> attr @@ -330,7 +330,7 @@ wire_type_token: astbuf3->is_signed = true; }; -range: +non_opt_range: '[' expr ':' expr ']' { $$ = new AstNode(AST_RANGE); $$->children.push_back($2); @@ -339,6 +339,11 @@ range: '[' expr ']' { $$ = new AstNode(AST_RANGE); $$->children.push_back($2); + }; + +range: + non_opt_range { + $$ = $1; } | /* empty */ { $$ = NULL; @@ -893,6 +898,11 @@ rvalue: $$ = new AstNode(AST_IDENTIFIER, $2); $$->str = *$1; delete $1; + } | + hierarchical_id non_opt_range non_opt_range { + $$ = new AstNode(AST_IDENTIFIER, $2, $3); + $$->str = *$1; + delete $1; }; lvalue: |