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Merge remote-tracking branch 'origin/master' into xc7dsp

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Eddie Hung 2019-08-12 11:32:10 -07:00
commit f890cfb63b
76 changed files with 840 additions and 568 deletions
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44
techlibs/common/simlib.v
View file

@ -532,14 +532,26 @@ endmodule
// --------------------------------------------------------
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
//-
//- $lcu (P, G, CI, CO)
//-
//- Lookahead carry unit
//- A building block dedicated to fast computation of carry-bits used in binary
//- arithmetic operations. By replacing the ripple carry structure used in full-adder
//- blocks, the more significant bits of the sum can be expected to be computed more
//- quickly.
//- Typically created during `techmap` of $alu cells (see the "_90_alu" rule in
//- +/techmap.v).
module \$lcu (P, G, CI, CO);
parameter WIDTH = 1;
input [WIDTH-1:0] P, G;
input CI;
input [WIDTH-1:0] P; // Propagate
input [WIDTH-1:0] G; // Generate
input CI; // Carry-in
output reg [WIDTH-1:0] CO;
output reg [WIDTH-1:0] CO; // Carry-out
integer i;
always @* begin
@ -555,6 +567,17 @@ endmodule
// --------------------------------------------------------
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
//-
//- $alu (A, B, CI, BI, X, Y, CO)
//-
//- Arithmetic logic unit.
//- A building block supporting both binary addition/subtraction operations, and
//- indirectly, comparison operations.
//- Typically created by the `alumacc` pass, which transforms:
//- $add, $sub, $lt, $le, $ge, $gt, $eq, $eqx, $ne, $nex
//- cells into this $alu cell.
//-
module \$alu (A, B, CI, BI, X, Y, CO);
parameter A_SIGNED = 0;
@ -563,12 +586,16 @@ parameter A_WIDTH = 1;
parameter B_WIDTH = 1;
parameter Y_WIDTH = 1;
input [A_WIDTH-1:0] A;
input [B_WIDTH-1:0] B;
output [Y_WIDTH-1:0] X, Y;
input [A_WIDTH-1:0] A; // Input operand
input [B_WIDTH-1:0] B; // Input operand
output [Y_WIDTH-1:0] X; // A xor B (sign-extended, optional B inversion,
// used in combination with
// reduction-AND for $eq/$ne ops)
output [Y_WIDTH-1:0] Y; // Sum
input CI, BI;
output [Y_WIDTH-1:0] CO;
input CI; // Carry-in (set for $sub)
input BI; // Invert-B (set for $sub)
output [Y_WIDTH-1:0] CO; // Carry-out
wire [Y_WIDTH-1:0] AA, BB;
@ -584,6 +611,7 @@ endgenerate
wire y_co_undef = ^{A, A, B, B, CI, CI, BI, BI};
assign X = AA ^ BB;
// Full adder
assign Y = (AA + BB + CI) ^ {Y_WIDTH{y_co_undef}};
function get_carry;

22
techlibs/coolrunner2/coolrunner2_sop.cc
View file

@ -60,10 +60,8 @@ struct Coolrunner2SopPass : public Pass {
dict<SigBit, pool<tuple<Cell*, std::string>>> special_pterms_inv;
for (auto cell : module->selected_cells())
{
if (cell->type == "\\FDCP" || cell->type == "\\FDCP_N" || cell->type == "\\FDDCP" ||
cell->type == "\\FTCP" || cell->type == "\\FTCP_N" || cell->type == "\\FTDCP" ||
cell->type == "\\FDCPE" || cell->type == "\\FDCPE_N" || cell->type == "\\FDDCPE" ||
cell->type == "\\LDCP" || cell->type == "\\LDCP_N")
if (cell->type.in("\\FDCP", "\\FDCP_N", "\\FDDCP", "\\FTCP", "\\FTCP_N", "\\FTDCP",
"\\FDCPE", "\\FDCPE_N", "\\FDDCPE", "\\LDCP", "\\LDCP_N"))
{
if (cell->hasPort("\\PRE"))
special_pterms_no_inv[sigmap(cell->getPort("\\PRE")[0])].insert(
@ -257,10 +255,8 @@ struct Coolrunner2SopPass : public Pass {
pool<SigBit> sig_fed_by_ff;
for (auto cell : module->selected_cells())
{
if (cell->type == "\\FDCP" || cell->type == "\\FDCP_N" || cell->type == "\\FDDCP" ||
cell->type == "\\LDCP" || cell->type == "\\LDCP_N" ||
cell->type == "\\FTCP" || cell->type == "\\FTCP_N" || cell->type == "\\FTDCP" ||
cell->type == "\\FDCPE" || cell->type == "\\FDCPE_N" || cell->type == "\\FDDCPE")
if (cell->type.in("\\FDCP", "\\FDCP_N", "\\FDDCP", "\\LDCP", "\\LDCP_N",
"\\FTCP", "\\FTCP_N", "\\FTDCP", "\\FDCPE", "\\FDCPE_N", "\\FDDCPE"))
{
auto output = sigmap(cell->getPort("\\Q")[0]);
sig_fed_by_ff.insert(output);
@ -270,13 +266,11 @@ struct Coolrunner2SopPass : public Pass {
// Look at all the FF inputs
for (auto cell : module->selected_cells())
{
if (cell->type == "\\FDCP" || cell->type == "\\FDCP_N" || cell->type == "\\FDDCP" ||
cell->type == "\\LDCP" || cell->type == "\\LDCP_N" ||
cell->type == "\\FTCP" || cell->type == "\\FTCP_N" || cell->type == "\\FTDCP" ||
cell->type == "\\FDCPE" || cell->type == "\\FDCPE_N" || cell->type == "\\FDDCPE")
if (cell->type.in("\\FDCP", "\\FDCP_N", "\\FDDCP", "\\LDCP", "\\LDCP_N",
"\\FTCP", "\\FTCP_N", "\\FTDCP", "\\FDCPE", "\\FDCPE_N", "\\FDDCPE"))
{
SigBit input;
if (cell->type == "\\FTCP" || cell->type == "\\FTCP_N" || cell->type == "\\FTDCP")
if (cell->type.in("\\FTCP", "\\FTCP_N", "\\FTDCP"))
input = sigmap(cell->getPort("\\T")[0]);
else
input = sigmap(cell->getPort("\\D")[0]);
@ -300,7 +294,7 @@ struct Coolrunner2SopPass : public Pass {
xor_cell->setPort("\\IN_PTC", and_to_xor_wire);
xor_cell->setPort("\\OUT", xor_to_ff_wire);
if (cell->type == "\\FTCP" || cell->type == "\\FTCP_N" || cell->type == "\\FTDCP")
if (cell->type.in("\\FTCP", "\\FTCP_N", "\\FTDCP"))
cell->setPort("\\T", xor_to_ff_wire);
else
cell->setPort("\\D", xor_to_ff_wire);

6
techlibs/ice40/ice40_braminit.cc
View file

@ -69,13 +69,13 @@ static void run_ice40_braminit(Module *module)
for (int i = 0; i < GetSize(line); i++)
{
if (in_comment && line.substr(i, 2) == "*/") {
if (in_comment && line.compare(i, 2, "*/") == 0) {
line[i] = ' ';
line[i+1] = ' ';
in_comment = false;
continue;
}
if (!in_comment && line.substr(i, 2) == "/*")
if (!in_comment && line.compare(i, 2, "/*") == 0)
in_comment = true;
if (in_comment)
line[i] = ' ';
@ -87,7 +87,7 @@ static void run_ice40_braminit(Module *module)
long value;
token = next_token(line, " \t\r\n");
if (token.empty() || token.substr(0, 2) == "//")
if (token.empty() || token.compare(0, 2, "//") == 0)
break;
if (token[0] == '@') {

2
techlibs/ice40/ice40_opt.cc
View file

@ -117,7 +117,7 @@ static void run_ice40_opts(Module *module)
log("Optimized $__ICE40_FULL_ADDER cell back to logic (without SB_CARRY) %s.%s: CO=%s\n",
log_id(module), log_id(cell), log_signal(replacement_output));
cell->type = "$lut";
cell->setPort("\\A", { RTLIL::S0, inbit[0], inbit[1], inbit[2] });
cell->setPort("\\A", { State::S0, inbit[0], inbit[1], inbit[2] });
cell->setPort("\\Y", cell->getPort("\\O"));
cell->unsetPort("\\B");
cell->unsetPort("\\CI");

2
techlibs/ice40/synth_ice40.cc
View file

@ -183,7 +183,7 @@ struct SynthIce40Pass : public ScriptPass
continue;
}
if (args[argidx] == "-dffe_min_ce_use" && argidx+1 < args.size()) {
min_ce_use = std::stoi(args[++argidx]);
min_ce_use = atoi(args[++argidx].c_str());
continue;
}
if (args[argidx] == "-nobram") {

2
techlibs/xilinx/synth_xilinx.cc
View file

@ -199,7 +199,7 @@ struct SynthXilinxPass : public ScriptPass
continue;
}
if (args[argidx] == "-widemux" && argidx+1 < args.size()) {
widemux = std::stoi(args[++argidx]);
widemux = atoi(args[++argidx].c_str());
continue;
}
if (args[argidx] == "-abc9") {