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comparison core/src/BRegFile.bsv @ 1:91a1f76ddd62 pygar svn.2

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[svn r2] Adding initial lab 5 source
author punk
date Tue, 13 Apr 2010 17:34:33 -0400
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0:6d1ff93e3afa 1:91a1f76ddd62
1 import RegFile::*;
2 import RWire::*;
3 import ProcTypes::*;
4
5 //-----------------------------------------------------------
6 // Register file module
7 //-----------------------------------------------------------
8
9 interface BRegFile #(type index_t, type data_t);
10 method Action upd(index_t addr, data_t data);
11 method data_t sub(index_t addr);
12 endinterface
13
14 module mkBRegFile(RegFile#(index_t, data_t))
15 provisos (Bits#(index_t, size_index),
16 Bits#(data_t, size_data),
17 Eq#(index_t),
18 Bounded#(index_t) );
19
20 RegFile#(index_t, data_t) rf <- mkRegFileWCF(minBound, maxBound);
21 RWire#(Tuple2#(index_t, data_t)) rw <-mkRWire();
22
23 method Action upd (index_t r, data_t d);
24 rf.upd(r,d);
25 rw.wset(tuple2(r,d));
26 endmethod
27
28 method data_t sub (index_t r);
29 case (rw.wget()) matches
30 tagged Valid {.wr, .d} :
31 return (wr == r) ? d : rf.sub(r);
32 tagged Invalid : return rf.sub(r);
33 endcase
34 endmethod
35
36 endmodule