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connect CINY1 for CarryGenCell

This commit is contained in:
Lofty 2025-07-03 11:11:45 +01:00
parent 42118f30f1
commit 44ee7d4e86
1 changed files with 2 additions and 0 deletions
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2
himbaechel/uarch/gatemate/pack_mult.cc
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@ -245,6 +245,7 @@ CarryGenCell::CarryGenCell(CellInfo *lower, CellInfo *upper, CellInfo *comp, Cel
lower->params[id_INIT_L20] = Property(is_odd_x ? LUT_OR : LUT_ZERO, 4);
lower->params[id_C_FUNCTION] = Property(C_EN_CIN, 3);
lower->params[id_C_I3] = Property(1, 1); // PINY1 for L02
lower->params[id_C_HORIZ] = Property(0, 1); // CINY1 for CIN_ for L03
upper->params[id_INIT_L00] = Property(LUT_ZERO, 4); // (unused)
upper->params[id_INIT_L01] = Property(enable_cinx ? LUT_D1 : LUT_ZERO, 4); // CINX
@ -728,6 +729,7 @@ void GateMatePacker::pack_mult()
ctx->idf("%s$%s$b%d_passthru", lines_name.c_str(ctx), upper_net_name.c_str(ctx), 2 * b + 1));
b_passthru.cplines->connectPort(id_COUTY1, upper_net);
b_carry.cplines->connectPort(id_CINY1, upper_net);
b_carry.lower->connectPort(id_CINY1, upper_net);
}
// Carry Gen (POUTY1, COUTY1, COUTY2) -> MULTFab (PINY1, CINY1, CINY2)