Commit Graph

14 Commits

Author SHA1 Message Date
Lars-Peter Clausen 662e82c013 Handle signedness of struct members
struct members are currently always treated as unsigned. This leads to
incorrect behavior in contexts where the sign makes a difference. E.g.

```
struct packed {
  int x;
} s;

s.x = -1;
if (s.x > 0) $display("FAILED");
```

Query the signedness of the struct member form the type of the member.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2022-01-27 10:53:19 +01:00
Lars-Peter Clausen 09ac7c207e Add support for signed packed structs/unions
packed structs and packed unions as a whole can either be signed or
unsigned. This information is used when it is used as a primary in an
expression, i.e. without accessing any of the members.

Add support for parsing and elaborating signed structs.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2022-01-16 16:16:24 +01:00
Cary R d6b6b76015 Update header files to use a more standard name to prevent rereading
This is from github report #16. There are likely a few more issues
that need to be addressed though this takes care of the major ones.
2014-07-23 13:42:56 -07:00
Stephen Williams 0d6c15e45a Handle packed unions properly during elaboration.
This also gets r-value use of packed unions correct.
2013-12-07 12:20:28 -08:00
Stephen Williams 0b4056817a Generalize struct member type 2013-12-07 12:20:28 -08:00
Stephen Williams 914ebeca4a Some rework to allow for nested packed types.
This also simplifies the NetNet set of contructors and generalizes
the types that are supported, especially packed types.
2012-10-14 17:16:47 -07:00
Stephen Williams 4e76912331 ivl_target access to type information. 2012-10-14 17:16:47 -07:00
Stephen Williams 92313654ec Rework the way vectors are represented in NetNet objects. 2012-10-14 17:16:47 -07:00
Arun Persaud f5aafc32f9 updated FSF-address 2012-08-29 10:12:10 -07:00
Stephen Williams 14f229de30 Parse support for dynamic arrays.
This includes limited support for dynamic arrays down to the code
generator, and some stubs in the vvp code generator and vvp run time.
2012-07-22 10:52:06 -07:00
Stephen Williams 78b0b49a4e Support struct members that are packed arrays. 2012-05-22 17:31:25 -07:00
Cary R 42239a8498 Add code to test the width of individual structure elements.
This patch adds code to correctly set the type and width of individual
structure elements. Note the sign information is not currently available.
2012-04-02 19:53:47 -07:00
Stephen Williams 3a2866b57c Handle members of packed struct as implicit part selects.
Packed struct members are synonymous with part selects, but in a
much more convenient form, so get them to work that way.
2012-02-02 16:18:49 -08:00
Stephen Williams d362c8dba0 Parse support for struct variables. 2012-02-02 16:18:49 -08:00