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Implemented part/bit select on memory read

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This commit is contained in:
Clifford Wolf 2013-11-20 10:51:32 +01:00
parent d248419fe0
commit 19dba2561e
4 changed files with 104 additions and 5 deletions
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14
frontends/verilog/parser.y
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@ -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: