luke
/
nextpnr
mirror of https://github.com/YosysHQ/nextpnr.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

connect multfab to its lines

This commit is contained in:
Lofty 2025-07-03 10:39:25 +01:00
parent 9a68c6b13d
commit 867402732e
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
himbaechel/uarch/gatemate/pack_mult.cc
View File

@ -83,6 +83,7 @@ struct CarryGenCell
};
// This prepares B bits for multiplication.
// CITE: CPE_MULTFab.pdf
struct MultfabCell
{
MultfabCell() : lower{nullptr}, upper{nullptr}, comp{nullptr}, cplines{nullptr} {}
@ -461,9 +462,13 @@ void GateMatePacker::pack_mult()
auto *multfab_lines = create_cell_ptr(
id_CPE_CPLINES, ctx->idf("%s$multf%c_cplines", name.c_str(ctx), is_even_x ? 'a' : 'b'));
NetInfo *comp_in = ctx->createNet(ctx->idf("%s$multf%c$comp_in", name.c_str(ctx), is_even_x ? 'a' : 'b'));
multfab_upper->connectPort(id_OUT, comp_in);
multfab_comp->connectPort(id_COMB2, comp_in);
NetInfo *comb1_conn = ctx->createNet(ctx->idf("%s$multf%c$comb1", name.c_str(ctx), is_even_x ? 'a' : 'b'));
multfab_lower->connectPort(id_OUT, comb1_conn);
multfab_lines->connectPort(id_OUT1, comb1_conn);
NetInfo *comb2_conn = ctx->createNet(ctx->idf("%s$multf%c$comb2", name.c_str(ctx), is_even_x ? 'a' : 'b'));
multfab_upper->connectPort(id_OUT, comb2_conn);
multfab_comp->connectPort(id_COMB2, comb2_conn);
NetInfo *comp_out = ctx->createNet(ctx->idf("%s$multf%c$comp_out", name.c_str(ctx), is_even_x ? 'a' : 'b'));
multfab_comp->connectPort(id_COMPOUT, comp_out);