diff options
Diffstat (limited to 'src/tb')
| -rw-r--r-- | src/tb/tb_modexp.v | 61 | ||||
| -rw-r--r-- | src/tb/tb_modexp_autogenerated.v | 4 |
2 files changed, 58 insertions, 7 deletions
diff --git a/src/tb/tb_modexp.v b/src/tb/tb_modexp.v index fe22662..363b4ed 100644 --- a/src/tb/tb_modexp.v +++ b/src/tb/tb_modexp.v @@ -256,8 +256,8 @@ module tb_modexp(); dut.core_inst.ready_reg, dut.start_reg, dut.start_new); $display("residue_valid = 0x%01x", dut.core_inst.residue_valid_reg); $display("loop_counter_reg = 0x%08x", dut.core_inst.loop_counter_reg); - $display("exponent_length_reg = 0x%02x, modulus_length_reg = 0x%02x length_m1 = 0x%02x", - dut.exponent_length_reg, dut.modulus_length_reg, dut.core_inst.length_m1); + $display("exponent_length_reg = 0x%02x exponent_length_m1 = 0x%02x modulus_length_reg = 0x%02x modulus_length_m1 = 0x%02x", + dut.exponent_length_reg, dut.core_inst.exponent_length_m1, dut.modulus_length_reg, dut.core_inst.modulus_length_m1); $display("ctrl_reg = 0x%04x", dut.core_inst.modexp_ctrl_reg); $display(""); end @@ -885,6 +885,56 @@ module tb_modexp(); //---------------------------------------------------------------- + // e65537_64bit_modulus_elength() + //---------------------------------------------------------------- + task e65537_64bit_modulus_elength(); + reg [31 : 0] read_data; + begin + success = 32'h1; + tc_ctr = tc_ctr + 1; + $display("Test with e = 65537 and 64 bit modulus, explicit exponent length."); + + write_word({GENERAL_PREFIX, ADDR_EXPONENT_PTR_RST}, 32'h00000000); + write_word({GENERAL_PREFIX, ADDR_EXPONENT_DATA}, 32'h00010001); + + write_word({GENERAL_PREFIX, ADDR_MODULUS_PTR_RST}, 32'h00000000); + write_word({GENERAL_PREFIX, ADDR_MODULUS_DATA}, 32'h00000000); + write_word({GENERAL_PREFIX, ADDR_MODULUS_DATA}, 32'hf077656f); + write_word({GENERAL_PREFIX, ADDR_MODULUS_DATA}, 32'h3bf9e69b); + + write_word({GENERAL_PREFIX, ADDR_MESSAGE_PTR_RST}, 32'h00000000); + write_word({GENERAL_PREFIX, ADDR_MESSAGE_DATA}, 32'h00000000); + write_word({GENERAL_PREFIX, ADDR_MESSAGE_DATA}, 32'hb6684dc3); + write_word({GENERAL_PREFIX, ADDR_MESSAGE_DATA}, 32'h79a5824b); + + write_word({GENERAL_PREFIX, ADDR_EXPONENT_LENGTH}, 32'h00000001); + write_word({GENERAL_PREFIX, ADDR_MODULUS_LENGTH}, 32'h00000003); + + start_test_cycle_ctr(); + + // Start processing and wait for ready. + write_word({GENERAL_PREFIX, ADDR_CTRL}, 32'h00000001); + wait_ready(); + + stop_test_cycle_ctr(); + + write_word({GENERAL_PREFIX, ADDR_RESULT_PTR_RST}, 32'h00000000); + read_word({GENERAL_PREFIX, ADDR_RESULT_DATA}); read_data = tb_read_data; success = success & assertEquals(32'h00000000, read_data); + read_word({GENERAL_PREFIX, ADDR_RESULT_DATA}); read_data = tb_read_data; success = success & assertEquals(32'h132d8e17, read_data); + read_word({GENERAL_PREFIX, ADDR_RESULT_DATA}); read_data = tb_read_data; success = success & assertEquals(32'hdd4d85a4, read_data); + + if (success !== 1) + begin + $display("*** ERROR: e65537_64bit_modulus with explicit elength was NOT successful."); + error_ctr = error_ctr + 1; + end + else + $display("*** e65537_64bit_modulus success."); + end + endtask // e65537_64bit_modulus_elength + + + //---------------------------------------------------------------- // e65537_128bit_modulus() //---------------------------------------------------------------- task e65537_128bit_modulus(); @@ -1398,10 +1448,11 @@ module tb_modexp(); // tc1(); // tc2(); // tc3(); - autogenerated_BASIC_33bit(); - autogenerated_BASIC_128bit(); +// autogenerated_BASIC_33bit(); +// autogenerated_BASIC_128bit(); e65537_64bit_modulus(); -// e65537_128bit_modulus(); + e65537_64bit_modulus_elength(); + // e65537_128bit_modulus(); // e65537_256bit_modulus(); // rob_dec_1024(); diff --git a/src/tb/tb_modexp_autogenerated.v b/src/tb/tb_modexp_autogenerated.v index 1eb80d5..0bb9432 100644 --- a/src/tb/tb_modexp_autogenerated.v +++ b/src/tb/tb_modexp_autogenerated.v @@ -174,8 +174,8 @@ module tb_modexp_autogenerated(); dut.core_inst.ready_reg, dut.start_reg, dut.start_new); $display("residue_valid = 0x%01x", dut.core_inst.residue_valid_reg); $display("loop_counter_reg = 0x%08x", dut.core_inst.loop_counter_reg); - $display("exponent_length_reg = 0x%02x, modulus_length_reg = 0x%02x length_m1 = 0x%02x", - dut.exponent_length_reg, dut.modulus_length_reg, dut.core_inst.length_m1); + $display("exponent_length_reg = 0x%02x, modulus_length_reg = 0x%02x modulus_length_m1 = 0x%02x", + dut.exponent_length_reg, dut.modulus_length_reg, dut.core_inst.modulus_length_m1); $display("ctrl_reg = 0x%04x", dut.core_inst.modexp_ctrl_reg); $display(""); end |