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another multiplier fix

This commit is contained in:
Lofty 2025-09-15 17:42:10 +01:00
parent c347941727
commit e3fa85b8b2
1 changed files with 103 additions and 48 deletions
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151
himbaechel/uarch/gatemate/route_mult.cc
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@ -192,6 +192,7 @@ void route_mult_x1y1_upper_in8(Context *ctx, NetInfo *net, CellInfo *upper, Loc
auto sb_big_d2_1 = ctx->getWireByName(IdStringList::concat(x4y2, ctx->idf("SB_BIG.P12.D2_1")));
auto sb_big_y1 = ctx->getWireByName(IdStringList::concat(x4y2, ctx->idf("SB_BIG.P12.Y1")));
auto sb_big_ydiag = ctx->getWireByName(IdStringList::concat(x4y2, ctx->idf("SB_BIG.P12.YDIAG")));
auto sb_big_y3 = ctx->getWireByName(IdStringList::concat(x4y2, ctx->idf("SB_BIG.P12.Y3")));
find_and_bind_downhill_pip(ctx, out_mux_y, sb_sml_d0, net);
find_and_bind_downhill_pip(ctx, sb_sml_d0, sb_sml_y1_int, net);
@ -199,7 +200,8 @@ void route_mult_x1y1_upper_in8(Context *ctx, NetInfo *net, CellInfo *upper, Loc
find_and_bind_downhill_pip(ctx, sb_sml_y1, sb_big_d2_1, net); // inverting
find_and_bind_downhill_pip(ctx, sb_big_d2_1, sb_big_y1, net); // inverting
find_and_bind_downhill_pip(ctx, sb_big_y1, sb_big_ydiag, net); // inverting
find_and_bind_downhill_pip(ctx, sb_big_ydiag, in_mux_p12, net); // inverting
find_and_bind_downhill_pip(ctx, sb_big_ydiag, sb_big_y3, net); // inverting
find_and_bind_downhill_pip(ctx, sb_big_y3, in_mux_p12, net); // inverting
} else {
auto sb_big_d0 =
ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("SB_BIG.P12.D0")));
@ -427,10 +429,12 @@ void route_mult_x1y2_upper_in8(Context *ctx, NetInfo *net, CellInfo *upper, Loc
find_and_bind_downhill_pip(ctx, sb_sml_y2_int, sb_sml_y2, net);
find_and_bind_downhill_pip(ctx, sb_sml_y2, in_mux_p10, net);
} else {
// x2y1/OM.P10.Y is x2y1/SB_BIG.P10.D0
// x2y2/IM.P10.D1 is x2y1/SB_BIG.P10.Y2
auto sb_big_d0 = ctx->getWireByName(IdStringList::concat(x2y1, ctx->idf("SB_BIG.P10.D0")));
auto sb_big_y2 = ctx->getWireByName(IdStringList::concat(x2y1, ctx->idf("SB_BIG.P10.Y2")));
find_and_bind_downhill_pip(ctx, out_mux_y, in_mux_p10, net); // inverting
find_and_bind_downhill_pip(ctx, out_mux_y, sb_big_d0, net);
find_and_bind_downhill_pip(ctx, sb_big_d0, sb_big_y2, net);
find_and_bind_downhill_pip(ctx, sb_big_y2, in_mux_p10, net);
}
auto in_mux_p10_y = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P10.Y")));
@ -547,39 +551,54 @@ void route_mult_x2y1_upper_in1(Context *ctx, NetInfo *net, CellInfo *upper, Loc
auto sb_big_p03_d0 = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P03.D0")));
auto sb_big_p03_y1 = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P03.Y1")));
auto sb_big_p03_ydiag =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P03.YDIAG"))); // AKA SB_BIG.P02.X23
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P03.YDIAG")));
auto sb_big_p02_x23 =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P02.X23")));
auto sb_big_p02_ydiag =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P02.YDIAG"))); // AKA SB_BIG.P01.X23
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P02.YDIAG")));
auto sb_big_p01_x23 =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P01.X23")));
auto sb_big_p01_ydiag = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P01.YDIAG")));
// x2y1/IM.P01.D0 is x0y1/SB_BIG.P01.Y1
auto sb_big_p01_y1 = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_BIG.P01.Y1")));
find_and_bind_downhill_pip(ctx, cpe_out2, sb_big_p03_d0, net);
find_and_bind_downhill_pip(ctx, sb_big_p03_d0, sb_big_p03_y1, net);
find_and_bind_downhill_pip(ctx, sb_big_p03_y1, sb_big_p03_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p03_ydiag, sb_big_p02_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p02_ydiag, sb_big_p01_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_ydiag, in_mux, net);
find_and_bind_downhill_pip(ctx, sb_big_p03_ydiag, sb_big_p02_x23, net);
find_and_bind_downhill_pip(ctx, sb_big_p02_x23, sb_big_p02_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p02_ydiag, sb_big_p01_x23, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_x23, sb_big_p01_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_ydiag, sb_big_p01_y1, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_y1, in_mux, net);
} else {
auto sb_sml_p03_d0 = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P03.D0")));
auto sb_sml_p03_y1_int = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P03.Y1_int")));
auto sb_sml_p03_ydiag_int = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P03.YDIAG_int")));
auto sb_sml_p03_ydiag =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P03.YDIAG"))); // AKA SB_SML.P02.X23
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P03.YDIAG")));
auto sb_sml_p02_x23 =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P02.X23")));
auto sb_sml_p02_ydiag_int = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P02.YDIAG_int")));
auto sb_sml_p02_ydiag =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P02.YDIAG"))); // AKA SB_SML.P01.X23
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P02.YDIAG")));
auto sb_sml_p01_x23 =
ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P01.X23")));
auto sb_sml_p01_ydiag_int = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P01.YDIAG_int")));
auto sb_sml_p01_y1_int = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P01.Y1_int")));
auto sb_sml_p01_y1 = ctx->getWireByName(IdStringList::concat(x0y1, ctx->idf("SB_SML.P01.Y1")));
find_and_bind_downhill_pip(ctx, cpe_out2, sb_sml_p03_d0, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_d0, sb_sml_p03_y1_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_y1_int, sb_sml_p03_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_ydiag_int, sb_sml_p03_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_ydiag, sb_sml_p02_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_ydiag, sb_sml_p02_x23, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_x23, sb_sml_p02_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_ydiag_int, sb_sml_p02_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_ydiag, sb_sml_p01_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_ydiag, sb_sml_p01_x23, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_x23, sb_sml_p01_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_ydiag_int, sb_sml_p01_y1_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_y1_int, in_mux, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_y1_int, sb_sml_p01_y1, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_y1, in_mux, net);
}
route_mult_diag(ctx, net, Loc{loc.x + 1, loc.y, 0}, in_mux, 1);
@ -612,24 +631,33 @@ void route_mult_x2y1_upper_in8(Context *ctx, NetInfo *net, CellInfo *upper, Loc
find_and_bind_downhill_pip(ctx, out_mux_d2, out_mux_y, net); // inverting
if (is_fourgroup_a) {
auto sb_sml = ctx->getWireByName(IdStringList::concat(x1y2, ctx->idf("SB_SML.P09.Y1_int")));
auto sb_sml_y1_int = ctx->getWireByName(IdStringList::concat(x1y2, ctx->idf("SB_SML.P09.Y1_int")));
auto sb_sml_y1 = ctx->getWireByName(IdStringList::concat(x1y2, ctx->idf("SB_SML.P09.Y1")));
find_and_bind_downhill_pip(ctx, out_mux_y, sb_sml, net);
find_and_bind_downhill_pip(ctx, sb_sml, in_mux_p09, net); // inverting
find_and_bind_downhill_pip(ctx, out_mux_y, sb_sml_y1_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_y1_int, sb_sml_y1, net);
find_and_bind_downhill_pip(ctx, sb_sml_y1, in_mux_p09, net); // inverting
} else {
// x1y2/OM.P09.Y is x1y2/SB_BIG.P09.D0
// x2y2/IM.P09.D0 is x2y1/SB_BIG.P09.Y1
auto sb_big_d0 = ctx->getWireByName(IdStringList::concat(x1y2, ctx->idf("SB_BIG.P09.D0")));
auto sb_big_y1 = ctx->getWireByName(IdStringList::concat(x1y2, ctx->idf("SB_BIG.P09.Y1")));
find_and_bind_downhill_pip(ctx, out_mux_y, in_mux_p09, net); // inverting
find_and_bind_downhill_pip(ctx, out_mux_y, sb_big_d0, net);
find_and_bind_downhill_pip(ctx, sb_big_d0, sb_big_y1, net);
find_and_bind_downhill_pip(ctx, sb_big_y1, in_mux_p09, net);
}
auto in_mux_p12 = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P12.D7"))); // aka IM.P09.Y
auto in_mux_p04 = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P04.D7"))); // aka IM.P12.Y
auto in_mux_p08 = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P08.D6"))); // aka IM.P04.Y
auto in_mux_p09_y = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P09.Y")));
auto in_mux_p12 = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P12.D7")));
auto in_mux_p12_y = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P12.Y")));
auto in_mux_p04 = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P04.D7")));
auto in_mux_p04_y = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P04.Y")));
auto in_mux_p08 = ctx->getWireByName(IdStringList::concat(x2y2, ctx->idf("IM.P08.D6")));
find_and_bind_downhill_pip(ctx, in_mux_p09, in_mux_p12, net); // inverting
find_and_bind_downhill_pip(ctx, in_mux_p12, in_mux_p04, net); // inverting
find_and_bind_downhill_pip(ctx, in_mux_p04, in_mux_p08, net); // inverting
find_and_bind_downhill_pip(ctx, in_mux_p09_y, in_mux_p12, net);
find_and_bind_downhill_pip(ctx, in_mux_p12, in_mux_p12_y, net);
find_and_bind_downhill_pip(ctx, in_mux_p12_y, in_mux_p04, net);
find_and_bind_downhill_pip(ctx, in_mux_p04, in_mux_p04_y, net);
find_and_bind_downhill_pip(ctx, in_mux_p04_y, in_mux_p08, net);
route_mult_diag(ctx, net, Loc{loc.x + 1, loc.y + 1, 0}, in_mux_p08, 8);
}
@ -744,46 +772,68 @@ void route_mult_x2y2_upper_in1(Context *ctx, NetInfo *net, CellInfo *upper, Loc
auto sb_sml_p04_y1_int = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P04.Y1_int")));
auto sb_sml_p04_ydiag_int = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P04.YDIAG_int")));
auto sb_sml_p04_ydiag =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P04.YDIAG"))); // AKA SB_SML.P03.X23
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P04.YDIAG")));
auto sb_sml_p03_x23 =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P03.X23")));
auto sb_sml_p03_ydiag_int = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P03.YDIAG_int")));
auto sb_sml_p03_ydiag =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P03.YDIAG"))); // AKA SB_SML.P02.X23
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P03.YDIAG")));
auto sb_sml_p02_x23 =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P02.X23")));
auto sb_sml_p02_ydiag_int = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P02.YDIAG_int")));
auto sb_sml_p02_ydiag =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P02.YDIAG"))); // AKA SB_SML.P01.X23
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P02.YDIAG")));
auto sb_sml_p01_x23 =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P01.X23")));
auto sb_sml_p01_ydiag_int = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P01.YDIAG_int")));
auto sb_sml_p01_y1_int = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P01.Y1_int")));
auto sb_sml_p01_y1 = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_SML.P01.Y1")));
find_and_bind_downhill_pip(ctx, cpe_out2_int, sb_sml_p04_d0, net);
find_and_bind_downhill_pip(ctx, cpe_out2, sb_sml_p04_d0, net);
find_and_bind_downhill_pip(ctx, sb_sml_p04_d0, sb_sml_p04_y1_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p04_y1_int, sb_sml_p04_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p04_ydiag_int, sb_sml_p04_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_sml_p04_ydiag, sb_sml_p03_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p04_ydiag, sb_sml_p03_x23, net);
log_info("%s -> %s\n", ctx->nameOfWire(sb_sml_p03_x23), ctx->nameOfWire(sb_sml_p03_ydiag));
find_and_bind_downhill_pip(ctx, sb_sml_p03_x23, sb_sml_p03_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_ydiag_int, sb_sml_p03_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_ydiag, sb_sml_p02_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p03_ydiag, sb_sml_p02_x23, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_x23, sb_sml_p02_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_ydiag_int, sb_sml_p02_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_ydiag, sb_sml_p01_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p02_ydiag, sb_sml_p01_x23, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_x23, sb_sml_p01_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_ydiag_int, sb_sml_p01_y1_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_y1_int, in_mux, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_y1_int, sb_sml_p01_y1, net);
find_and_bind_downhill_pip(ctx, sb_sml_p01_y1, in_mux, net);
} else {
auto sb_big_p04_d0 = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P04.D0")));
auto sb_big_p04_y1 = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P04.Y1")));
auto sb_big_p04_ydiag =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P04.YDIAG"))); // AKA SB_BIG.P07.X23
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P04.YDIAG")));
auto sb_big_p03_x23 =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P03.X23")));
auto sb_big_p03_ydiag =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P03.YDIAG"))); // AKA SB_BIG.P05.X23
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P03.YDIAG")));
auto sb_big_p02_x23 =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P02.X23")));
auto sb_big_p02_ydiag =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P02.YDIAG"))); // AKA SB_BIG.P05.X23
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P02.YDIAG")));
auto sb_big_p01_x23 =
ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P01.X23")));
auto sb_big_p01_ydiag = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P01.YDIAG")));
// x2y1/IM.P05.D0 is x1y1/SB_BIG.P05.Y1
auto sb_big_p01_y1 = ctx->getWireByName(IdStringList::concat(x1y1, ctx->idf("SB_BIG.P01.Y1")));
find_and_bind_downhill_pip(ctx, cpe_out2_int, sb_big_p04_d0, net);
find_and_bind_downhill_pip(ctx, cpe_out2, sb_big_p04_d0, net);
find_and_bind_downhill_pip(ctx, sb_big_p04_d0, sb_big_p04_y1, net);
find_and_bind_downhill_pip(ctx, sb_big_p04_y1, sb_big_p04_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p04_ydiag, sb_big_p03_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p03_ydiag, sb_big_p02_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p02_ydiag, sb_big_p01_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_ydiag, in_mux, net);
find_and_bind_downhill_pip(ctx, sb_big_p04_ydiag, sb_big_p03_x23, net);
find_and_bind_downhill_pip(ctx, sb_big_p03_x23, sb_big_p03_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p03_ydiag, sb_big_p02_x23, net);
find_and_bind_downhill_pip(ctx, sb_big_p02_x23, sb_big_p02_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p02_ydiag, sb_big_p01_x23, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_x23, sb_big_p01_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_ydiag, sb_big_p01_y1, net);
find_and_bind_downhill_pip(ctx, sb_big_p01_y1, in_mux, net);
}
route_mult_diag(ctx, net, Loc{loc.x + 1, loc.y, 0}, in_mux, 1);
@ -824,25 +874,30 @@ void route_mult_x2y2_upper_in8(Context *ctx, NetInfo *net, CellInfo *upper, Loc
auto sb_sml_y1_int = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_SML.P08.Y1_int")));
auto sb_sml_ydiag_int = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_SML.P08.YDIAG_int")));
auto sb_sml_y2_int = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_SML.P08.Y2_int")));
auto sb_sml_y2 = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_SML.P08.Y2")));
find_and_bind_downhill_pip(ctx, sb_big_d0, sb_big_y1, net);
find_and_bind_downhill_pip(ctx, sb_big_y1, sb_sml_y1_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_y1_int, sb_sml_ydiag_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_ydiag_int, sb_sml_y2_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_y2_int, in_mux, net);
find_and_bind_downhill_pip(ctx, sb_sml_y2_int, sb_sml_y2, net);
find_and_bind_downhill_pip(ctx, sb_sml_y2, in_mux, net);
} else {
auto sb_sml_d0 = ctx->getWireByName(IdStringList::concat(x0y0, ctx->idf("SB_SML.P08.D0")));
auto sb_sml_y1_int = ctx->getWireByName(IdStringList::concat(x0y0, ctx->idf("SB_SML.P08.Y1_int")));
auto sb_sml_y1 = ctx->getWireByName(IdStringList::concat(x0y0, ctx->idf("SB_SML.P08.Y1")));
auto sb_big_d2_1 = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_BIG.P08.D2_1")));
auto sb_big_y1 = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_BIG.P08.Y1")));
auto sb_big_ydiag = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_BIG.P08.YDIAG")));
// x2y2/IM.P08.D0 is x2y0/SB_BIG.P08.Y2
auto sb_big_y2 = ctx->getWireByName(IdStringList::concat(x2y0, ctx->idf("SB_BIG.P08.Y2")));
find_and_bind_downhill_pip(ctx, sb_sml_d0, sb_sml_y1_int, net);
find_and_bind_downhill_pip(ctx, sb_sml_y1_int, sb_sml_y1, net);
find_and_bind_downhill_pip(ctx, sb_sml_y1, sb_big_y1, net);
find_and_bind_downhill_pip(ctx, sb_sml_y1, sb_big_d2_1, net);
find_and_bind_downhill_pip(ctx, sb_big_d2_1, sb_big_y1, net);
find_and_bind_downhill_pip(ctx, sb_big_y1, sb_big_ydiag, net);
find_and_bind_downhill_pip(ctx, sb_big_ydiag, in_mux, net);
find_and_bind_downhill_pip(ctx, sb_big_ydiag, sb_big_y2, net);
find_and_bind_downhill_pip(ctx, sb_big_y2, in_mux, net);
}
route_mult_diag(ctx, net, Loc{loc.x + 1, loc.y + 1, 0}, in_mux, 8);