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add IOB

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This commit is contained in:
Pepijn de Vos 2020-11-19 12:02:36 +01:00
parent 8607adb476
commit 9fd85e4fad
2 changed files with 64 additions and 4 deletions
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50
gowin/arch.cc
View File

@ -305,10 +305,20 @@ IdString Arch::wireToGlobal(int row, int col, const DatabasePOD* db, IdString wi
return id(buf);
}
PairPOD pairLookup(const PairPOD* list, const size_t len, const int src, const int dest) {
for(size_t i=0; i<len; i++) {
PairPOD pair = list[i];
if ((src<0 || pair.src_id==src) && (dest<0 || pair.dest_id==dest)) {
return pair;
}
}
return PairPOD();
}
Arch::Arch(ArchArgs args) : args(args)
{
family = "GW1N-9";
device = "GW1NR-9";
family = "GW1N-1";
device = "GW1N-1";
speed = "C6/E5"; // or whatever
package = "QFN48"; // or something
@ -350,6 +360,7 @@ Arch::Arch(ArchArgs args) : args(args)
char buf[32];
IdString belname;
IdString wirename;
IdString portname;
int z = 0;
bool dff = true;
switch (static_cast<ConstIds>(bel->type_id))
@ -405,8 +416,41 @@ Arch::Arch(ArchArgs args) : args(args)
wirename = id(buf);
addBelOutput(belname, id_Q, wirename);
}
break;
case ID_IOBJ:
z++;
case ID_IOBI:
z++;
case ID_IOBH:
z++;
case ID_IOBG:
z++;
case ID_IOBF:
z++;
case ID_IOBE:
z++;
case ID_IOBD:
z++;
case ID_IOBC:
z++;
case ID_IOBB:
z++;
case ID_IOBA:
snprintf(buf, 32, "R%dC%d_IOB%c", row+1, col+1, 'A'+z);
belname = id(buf);
addBel(belname, id_IOB, Loc(col, row, z), false);
portname = pairLookup(bel->ports.get(), bel->num_ports, -1, ID_I).src_id;
snprintf(buf, 32, "R%dC%d_%s", row+1, col+1, portname.c_str(this));
wirename = id(buf);
addBelInput(belname, id_I, wirename);
portname = pairLookup(bel->ports.get(), bel->num_ports, -1, ID_O).src_id;
snprintf(buf, 32, "R%dC%d_%s", row+1, col+1, portname.c_str(this));
wirename = id(buf);
addBelInput(belname, id_O, wirename);
portname = pairLookup(bel->ports.get(), bel->num_ports, -1, ID_OE).src_id;
snprintf(buf, 32, "R%dC%d_%s", row+1, col+1, portname.c_str(this));
wirename = id(buf);
addBelInput(belname, id_OE, wirename);
default:
break;

16
gowin/constids.inc
View File

@ -324,6 +324,11 @@ X(A)
X(B)
X(C)
X(D)
// iob items
X(IOB)
X(I)
X(O)
X(OE)
// bels
X(DFF0)
X(DFF1)
@ -340,3 +345,14 @@ X(LUT4)
X(LUT5)
X(LUT6)
X(LUT7)
X(IOBA)
X(IOBB)
X(IOBC)
X(IOBD)
X(IOBE)
X(IOBF)
X(IOBG)
X(IOBH)
X(IOBI)
X(IOBJ)