Microcode for ECDH cores.

1 files changed, 33 insertions, 0 deletions

diff --git a/rtl/curve/uop/uop_init_rom_ecdh.v b/rtl/curve/uop/uop_init_rom_ecdh.v
new file mode 100644
index 0000000..dc92f2a
--- /dev/null
+++ b/rtl/curve/uop/uop_init_rom_ecdh.v
@@ -0,0 +1,33 @@
+`timescale 1ns / 1ps
+
+module uop_init_rom_ecdh
+  (
+   input wire 	      clk,
+   input wire [ 5: 0] addr,
+   output reg [19: 0] data
+   );
+
+
+   //
+   // Microcode
+   //
+`include "../uop_ecdsa.v"
+
+
+   //
+   // Initialization Microprogram for ECDH Mode
+   //
+   always @(posedge clk)
+
+     case (addr)
+
+       6'd00:	data <= {OPCODE_MOV, UOP_SRC_G_X,  UOP_SRC_DUMMY, UOP_DST_RX, UOP_EXEC_ALWAYS};
+       6'd01:	data <= {OPCODE_MOV, UOP_SRC_G_Y,  UOP_SRC_DUMMY, UOP_DST_RY, UOP_EXEC_ALWAYS};
+       6'd02:	data <= {OPCODE_MOV, UOP_SRC_ONE,  UOP_SRC_DUMMY, UOP_DST_RZ, UOP_EXEC_ALWAYS};
+
+       default:	data <= {OPCODE_RDY, UOP_SRC_DUMMY, UOP_SRC_DUMMY, UOP_DST_DUMMY, UOP_EXEC_ALWAYS};
+
+     endcase
+
+
+endmodule