annotate core/src/BRegFile.bsv @ 7:7393cd19371e
pygar svn.8
[svn r8] added volume to routing table and types
| author |
punk |
| date |
Wed, 21 Apr 2010 23:37:12 -0400 |
| parents |
91a1f76ddd62 |
| children |
|
| rev |
line source |
|
punk@1
|
1 import RegFile::*;
|
|
punk@1
|
2 import RWire::*;
|
|
punk@1
|
3 import ProcTypes::*;
|
|
punk@1
|
4
|
|
punk@1
|
5 //-----------------------------------------------------------
|
|
punk@1
|
6 // Register file module
|
|
punk@1
|
7 //-----------------------------------------------------------
|
|
punk@1
|
8
|
|
punk@1
|
9 interface BRegFile #(type index_t, type data_t);
|
|
punk@1
|
10 method Action upd(index_t addr, data_t data);
|
|
punk@1
|
11 method data_t sub(index_t addr);
|
|
punk@1
|
12 endinterface
|
|
punk@1
|
13
|
|
punk@1
|
14 module mkBRegFile(RegFile#(index_t, data_t))
|
|
punk@1
|
15 provisos (Bits#(index_t, size_index),
|
|
punk@1
|
16 Bits#(data_t, size_data),
|
|
punk@1
|
17 Eq#(index_t),
|
|
punk@1
|
18 Bounded#(index_t) );
|
|
punk@1
|
19
|
|
punk@1
|
20 RegFile#(index_t, data_t) rf <- mkRegFileWCF(minBound, maxBound);
|
|
punk@1
|
21 RWire#(Tuple2#(index_t, data_t)) rw <-mkRWire();
|
|
punk@1
|
22
|
|
punk@1
|
23 method Action upd (index_t r, data_t d);
|
|
punk@1
|
24 rf.upd(r,d);
|
|
punk@1
|
25 rw.wset(tuple2(r,d));
|
|
punk@1
|
26 endmethod
|
|
punk@1
|
27
|
|
punk@1
|
28 method data_t sub (index_t r);
|
|
punk@1
|
29 case (rw.wget()) matches
|
|
punk@1
|
30 tagged Valid {.wr, .d} :
|
|
punk@1
|
31 return (wr == r) ? d : rf.sub(r);
|
|
punk@1
|
32 tagged Invalid : return rf.sub(r);
|
|
punk@1
|
33 endcase
|
|
punk@1
|
34 endmethod
|
|
punk@1
|
35
|
|
punk@1
|
36 endmodule
|
