diff options
Diffstat (limited to 'ice40/pack.cc')
| -rw-r--r-- | ice40/pack.cc | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/ice40/pack.cc b/ice40/pack.cc index 0b76f3f3..6840d8d1 100644 --- a/ice40/pack.cc +++ b/ice40/pack.cc @@ -279,7 +279,9 @@ static void pack_io(Design *design) static void insert_global(Design *design, NetInfo *net, bool is_reset, bool is_cen) { - CellInfo *gb = create_ice_cell(design, "SB_GB"); + std::string glb_name = net->name.str() + std::string("_$glb_") + + (is_reset ? "sr" : (is_cen ? "ce" : "clk")); + CellInfo *gb = create_ice_cell(design, "SB_GB", "$gbuf_" + glb_name); gb->ports["USER_SIGNAL_TO_GLOBAL_BUFFER"].net = net; PortRef pr; pr.cell = gb; @@ -289,8 +291,7 @@ static void insert_global(Design *design, NetInfo *net, bool is_reset, pr.cell = gb; pr.port = "GLOBAL_BUFFER_OUTPUT"; NetInfo *glbnet = new NetInfo(); - glbnet->name = net->name.str() + std::string("_glb_") + - (is_reset ? "sr" : (is_cen ? "ce" : "clk")); + glbnet->name = glb_name; glbnet->driver = pr; design->nets[glbnet->name] = glbnet; gb->ports["GLOBAL_BUFFER_OUTPUT"].net = glbnet; @@ -363,19 +364,22 @@ static void promote_globals(Design *design) ++prom_resets; clock_count.erase(rstnet->name); reset_count.erase(rstnet->name); - + cen_count.erase(rstnet->name); } else if (global_cen->second > global_clock->second && prom_cens < 4) { NetInfo *cennet = design->nets[global_cen->first]; insert_global(design, cennet, false, true); ++prom_globals; ++prom_cens; - cen_count.erase(cennet->name); clock_count.erase(cennet->name); + reset_count.erase(cennet->name); + cen_count.erase(cennet->name); } else if (global_clock->second != 0) { NetInfo *clknet = design->nets[global_clock->first]; insert_global(design, clknet, false, false); ++prom_globals; clock_count.erase(clknet->name); + reset_count.erase(clknet->name); + cen_count.erase(clknet->name); } else { break; } |