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-rw-r--r--nexus/arch.cc70
-rw-r--r--nexus/arch.h44
-rw-r--r--nexus/pack.cc2
3 files changed, 57 insertions, 59 deletions
diff --git a/nexus/arch.cc b/nexus/arch.cc
index 95b409bf..267795dd 100644
--- a/nexus/arch.cc
+++ b/nexus/arch.cc
@@ -32,20 +32,6 @@
NEXTPNR_NAMESPACE_BEGIN
-namespace {
-static std::tuple<int, int, std::string> split_identifier_name(const std::string &name)
-{
- size_t first_slash = name.find('/');
- NPNR_ASSERT(first_slash != std::string::npos);
- size_t second_slash = name.find('/', first_slash + 1);
- NPNR_ASSERT(second_slash != std::string::npos);
- return std::make_tuple(std::stoi(name.substr(1, first_slash)),
- std::stoi(name.substr(first_slash + 2, second_slash - first_slash)),
- name.substr(second_slash + 1));
-};
-
-} // namespace
-
// -----------------------------------------------------------------------
void IdString::initialize_arch(const BaseCtx *ctx)
@@ -134,6 +120,17 @@ Arch::Arch(ArchArgs args) : args(args)
ts.bels_by_z[bel.z].index = j;
}
}
+
+ for (int i = 0; i < chip_info->width; i++) {
+ IdString x_id = id(stringf("X%d", i));
+ x_ids.push_back(x_id);
+ id_to_x[x_id] = i;
+ }
+ for (int i = 0; i < chip_info->height; i++) {
+ IdString y_id = id(stringf("Y%d", i));
+ y_ids.push_back(y_id);
+ id_to_y[y_id] = i;
+ }
init_cell_pin_data();
// Validate and set up package
package_idx = -1;
@@ -193,17 +190,17 @@ IdString Arch::archArgsToId(ArchArgs args) const { return id(args.device); }
// -----------------------------------------------------------------------
-BelId Arch::getBelByName(IdString name) const
+BelId Arch::getBelByName(IdStringList name) const
{
- int x, y;
- std::string belname;
- std::tie(x, y, belname) = split_identifier_name(name.str(this));
+ if (name.size() != 3)
+ return BelId();
+ int x = id_to_x.at(name[0]);
+ int y = id_to_y.at(name[1]);
NPNR_ASSERT(x >= 0 && x < chip_info->width);
NPNR_ASSERT(y >= 0 && y < chip_info->height);
auto &tile = db->loctypes[chip_info->grid[y * chip_info->width + x].loc_type];
- IdString bn = id(belname);
for (size_t i = 0; i < tile.bels.size(); i++) {
- if (tile.bels[i].name == bn.index) {
+ if (tile.bels[i].name == name[2].index) {
BelId ret;
ret.tile = y * chip_info->width + x;
ret.index = i;
@@ -305,17 +302,17 @@ std::vector<std::pair<IdString, std::string>> Arch::getBelAttrs(BelId bel) const
// -----------------------------------------------------------------------
-WireId Arch::getWireByName(IdString name) const
+WireId Arch::getWireByName(IdStringList name) const
{
- int x, y;
- std::string wirename;
- std::tie(x, y, wirename) = split_identifier_name(name.str(this));
+ if (name.size() != 3)
+ return WireId();
+ int x = id_to_x.at(name[0]);
+ int y = id_to_y.at(name[1]);
NPNR_ASSERT(x >= 0 && x < chip_info->width);
NPNR_ASSERT(y >= 0 && y < chip_info->height);
auto &tile = db->loctypes[chip_info->grid[y * chip_info->width + x].loc_type];
- IdString wn = id(wirename);
for (size_t i = 0; i < tile.wires.size(); i++) {
- if (tile.wires[i].name == wn.index) {
+ if (tile.wires[i].name == name[2].index) {
WireId ret;
ret.tile = y * chip_info->width + x;
ret.index = i;
@@ -342,26 +339,27 @@ std::vector<std::pair<IdString, std::string>> Arch::getWireAttrs(WireId wire) co
// -----------------------------------------------------------------------
-PipId Arch::getPipByName(IdString name) const
+PipId Arch::getPipByName(IdStringList name) const
{
- int x, y;
- std::string pipname;
- std::tie(x, y, pipname) = split_identifier_name(name.str(this));
+ if (name.size() != 5)
+ return PipId();
+ int x = id_to_x.at(name[0]);
+ int y = id_to_y.at(name[1]);
NPNR_ASSERT(x >= 0 && x < chip_info->width);
NPNR_ASSERT(y >= 0 && y < chip_info->height);
PipId ret;
ret.tile = y * chip_info->width + x;
- auto sep_pos = pipname.find(':');
- ret.index = std::stoi(pipname.substr(0, sep_pos));
+ ret.index = std::stoi(name[2].str(this));
return ret;
}
-IdString Arch::getPipName(PipId pip) const
+IdStringList Arch::getPipName(PipId pip) const
{
NPNR_ASSERT(pip != PipId());
- return id(stringf("X%d/Y%d/%d:%s->%s", pip.tile % chip_info->width, pip.tile / chip_info->width, pip.index,
- nameOf(loc_data(pip).wires[pip_data(pip).from_wire].name),
- nameOf(loc_data(pip).wires[pip_data(pip).to_wire].name)));
+ std::array<IdString, 5> ids{x_ids.at(pip.tile % chip_info->width), y_ids.at(pip.tile / chip_info->width),
+ id(stringf("%d", pip.index)), IdString(loc_data(pip).wires[pip_data(pip).to_wire].name),
+ IdString(loc_data(pip).wires[pip_data(pip).from_wire].name)};
+ return IdStringList(ids);
}
IdString Arch::getPipType(PipId pip) const { return IdString(); }
diff --git a/nexus/arch.h b/nexus/arch.h
index ee66599a..d37c5026 100644
--- a/nexus/arch.h
+++ b/nexus/arch.h
@@ -897,6 +897,11 @@ struct Arch : BaseCtx
std::unordered_map<WireId, NetInfo *> wire_to_net;
std::unordered_map<PipId, NetInfo *> pip_to_net;
+ // fast access to X and Y IdStrings for building object names
+ std::vector<IdString> x_ids, y_ids;
+ // inverse of the above for name->object mapping
+ std::unordered_map<IdString, int> id_to_x, id_to_y;
+
// -------------------------------------------------
std::string getChipName() const;
@@ -909,20 +914,18 @@ struct Arch : BaseCtx
int getGridDimY() const { return chip_info->height; }
int getTileBelDimZ(int, int) const { return 256; }
int getTilePipDimZ(int, int) const { return 1; }
+ char getNameDelimiter() const { return '/'; }
// -------------------------------------------------
- BelId getBelByName(IdString name) const;
+ BelId getBelByName(IdStringList name) const;
- IdString getBelName(BelId bel) const
+ IdStringList getBelName(BelId bel) const
{
- std::string name = "X";
- name += std::to_string(bel.tile % chip_info->width);
- name += "/Y";
- name += std::to_string(bel.tile / chip_info->width);
- name += "/";
- name += nameOf(IdString(bel_data(bel).name));
- return id(name);
+ NPNR_ASSERT(bel != BelId());
+ std::array<IdString, 3> ids{x_ids.at(bel.tile % chip_info->width), y_ids.at(bel.tile / chip_info->width),
+ IdString(bel_data(bel).name)};
+ return IdStringList(ids);
}
uint32_t getBelChecksum(BelId bel) const { return (bel.tile << 16) ^ bel.index; }
@@ -1023,16 +1026,13 @@ struct Arch : BaseCtx
// -------------------------------------------------
- WireId getWireByName(IdString name) const;
- IdString getWireName(WireId wire) const
+ WireId getWireByName(IdStringList name) const;
+ IdStringList getWireName(WireId wire) const
{
- std::string name = "X";
- name += std::to_string(wire.tile % chip_info->width);
- name += "/Y";
- name += std::to_string(wire.tile / chip_info->width);
- name += "/";
- name += nameOf(IdString(wire_data(wire).name));
- return id(name);
+ NPNR_ASSERT(wire != WireId());
+ std::array<IdString, 3> ids{x_ids.at(wire.tile % chip_info->width), y_ids.at(wire.tile / chip_info->width),
+ IdString(wire_data(wire).name)};
+ return IdStringList(ids);
}
IdString getWireType(WireId wire) const;
@@ -1136,8 +1136,8 @@ struct Arch : BaseCtx
// -------------------------------------------------
- PipId getPipByName(IdString name) const;
- IdString getPipName(PipId pip) const;
+ PipId getPipByName(IdStringList name) const;
+ IdStringList getPipName(PipId pip) const;
void bindPip(PipId pip, NetInfo *net, PlaceStrength strength)
{
@@ -1289,8 +1289,8 @@ struct Arch : BaseCtx
// -------------------------------------------------
- GroupId getGroupByName(IdString name) const { return GroupId(); }
- IdString getGroupName(GroupId group) const { return IdString(); }
+ GroupId getGroupByName(IdStringList name) const { return GroupId(); }
+ IdStringList getGroupName(GroupId group) const { return IdStringList(); }
std::vector<GroupId> getGroups() const { return {}; }
std::vector<BelId> getGroupBels(GroupId group) const { return {}; }
std::vector<WireId> getGroupWires(GroupId group) const { return {}; }
diff --git a/nexus/pack.cc b/nexus/pack.cc
index df479ef5..32bdfdb9 100644
--- a/nexus/pack.cc
+++ b/nexus/pack.cc
@@ -544,7 +544,7 @@ struct NexusPacker
{
if (!ci->attrs.count(id_BEL))
return BelId();
- return ctx->getBelByName(ctx->id(ci->attrs.at(id_BEL).as_string()));
+ return ctx->getBelByNameStr(ci->attrs.at(id_BEL).as_string());
}
void pack_io()
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 13:42:05 +0000