3 files changed, 91 insertions, 0 deletions
diff --git a/techlibs/intel_alm/common/megafunction_bb.v b/techlibs/intel_alm/common/megafunction_bb.v
index 874f293b1..aabcd4539 100644
--- a/techlibs/intel_alm/common/megafunction_bb.v
+++ b/techlibs/intel_alm/common/megafunction_bb.v
@@ -627,3 +627,38 @@ output [port_b_data_width-1:0] portbdataout;
 input clk0, portawe, portbre;
 
 endmodule
+
+(* blackbox *)
+module cyclone10gx_io_ibuf(i, ibar, dynamicterminationcontrol, o);
+
+parameter differential_mode ="false";
+parameter bus_hold = "false";
+parameter simulate_z_as = "Z";
+parameter lpm_type = "cyclone10gx_io_ibuf";
+
+(* iopad_external_pin *) input i;
+(* iopad_external_pin *) input ibar;
+input dynamicterminationcontrol;
+output o;
+
+endmodule
+
+(* blackbox *)
+module cyclone10gx_io_obuf(i, oe, dynamicterminationcontrol, seriesterminationcontrol, parallelterminationcontrol, devoe, o, obar);
+
+parameter open_drain_output = "false";
+parameter bus_hold = "false";
+parameter shift_series_termination_control = "false";
+parameter sim_dynamic_termination_control_is_connected = "false";
+parameter lpm_type = "cyclone10gx_io_obuf";
+
+input i;
+input oe;
+input devoe;
+input dynamicterminationcontrol;
+input [15:0] seriesterminationcontrol;
+input [15:0] parallelterminationcontrol;
+(* iopad_external_pin *) output o;
+(* iopad_external_pin *) output obar;
+
+endmodule
diff --git a/techlibs/intel_alm/common/misc_sim.v b/techlibs/intel_alm/common/misc_sim.v
new file mode 100644
index 000000000..e9494a8ee
--- /dev/null
+++ b/techlibs/intel_alm/common/misc_sim.v
@@ -0,0 +1,12 @@
+module MISTRAL_IB((* iopad_external_pin *)  input PAD, output O);
+	assign O = PAD;
+endmodule
+
+module MISTRAL_OB((* iopad_external_pin *)  output PAD, input I);
+	assign PAD = I;
+endmodule
+
+module MISTRAL_IO((* iopad_external_pin *)  inout PAD, input I, input OE, output O);
+	assign PAD = OE ? I : 1'bz;
+	assign O = PAD;
+endmodule
diff --git a/techlibs/intel_alm/common/quartus_rename.v b/techlibs/intel_alm/common/quartus_rename.v
index 3b4628675..964a094dd 100644
--- a/techlibs/intel_alm/common/quartus_rename.v
+++ b/techlibs/intel_alm/common/quartus_rename.v
@@ -2,11 +2,15 @@
 `define LCELL cyclonev_lcell_comb
 `define MAC cyclonev_mac
 `define MLAB cyclonev_mlab_cell
+`define IBUF cyclonev_io_ibuf
+`define OBUF cyclonev_io_obuf
 `endif
 `ifdef cyclone10gx
 `define LCELL cyclone10gx_lcell_comb
 `define MAC cyclone10gx_mac
 `define MLAB cyclone10gx_mlab_cell
+`define IBUF cyclone10gx_io_ibuf
+`define OBUF cyclone10gx_io_obuf
 `endif
 
 module __MISTRAL_VCC(output Q);
@@ -233,3 +237,43 @@ parameter B_SIGNED = 1;
 );
 
 endmodule
+
+module MISTRAL_IB(input PAD, output O);
+`IBUF #(
+    .bus_hold("false"),
+    .differential_mode("false")
+) _TECHMAP_REPLACE_ (
+    .i(PAD),
+    .o(O)
+);
+endmodule
+
+module MISTRAL_OB(output PAD, input I, OE);
+`OBUF #(
+    .bus_hold("false"),
+    .differential_mode("false")
+) _TECHMAP_REPLACE_ (
+    .i(I),
+    .o(PAD),
+    .oe(OE)
+);
+endmodule
+
+module MISTRAL_IO(output PAD, input I, OE, output O);
+`IBUF #(
+    .bus_hold("false"),
+    .differential_mode("false")
+) ibuf (
+    .i(PAD),
+    .o(O)
+);
+
+`OBUF #(
+    .bus_hold("false"),
+    .differential_mode("false")
+) obuf (
+    .i(I),
+    .o(PAD),
+    .oe(OE)
+);
+endmodule