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Subject: hash tables in e :
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zcabeli11
Posts: 27
Online: User is Offline
3/13/2008 4:51 AM  
Hello everybody, i'm looking for a DB that define hash table in specman. does any such structure exists ? or perhaps i can define one using macro. i.e. definition example : tlb["signal1"] is inout simple_port of uint = "..."; tlb["signal2"] is inout simple_port of uint = "..."; tlb["signal3"] is inout simple_port of uint = "..."; usage example : tlb[signal1]$ = tlb[signal2]$ thanks,
artmaj1
Posts: 3
Online: User is Offline
3/13/2008 6:03 AM  
For general hashing, there is a keyed list type of list that will allow you create a hash table. However, it sounds like you may have a specific requirement to connect ports or drive values to ports, which may require extra levels of indirection.

unit xyz {
!cs_buffer: list (key:address) of cs_data;
write(addr: uint; data:uint) is {
if(cs_buffer.key_exists(addr) {
cs_buffer.key(addr).data = data;
} else {
var tmpentry: cs_data;
tmpentry.address = addr;
tmpentry.data = data;
cs_buffer.add(tmpentry);
}
}
read(addr:uint):uint is {
var entry: cs_data = cs_buffer.key(addr);
return entry;
}
}

//Hash Element
struct cs_data {
address: uint;
data: uint;
};
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Forums > Functional Verification > e > hash tables in e :


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