diff options
Diffstat (limited to 'src/tb/tb_keywrap.v')
| -rw-r--r-- | src/tb/tb_keywrap.v | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/src/tb/tb_keywrap.v b/src/tb/tb_keywrap.v index 32526db..6b553ab 100644 --- a/src/tb/tb_keywrap.v +++ b/src/tb/tb_keywrap.v @@ -64,6 +64,7 @@ module tb_keywrap(); localparam CTRL_KEYLEN_BIT = 1; localparam ADDR_RLEN = 8'h0c; + localparam ADDR_R_BANK = 8'h0d; localparam ADDR_A0 = 8'h0e; localparam ADDR_A1 = 8'h0f; @@ -76,9 +77,8 @@ module tb_keywrap(); localparam ADDR_KEY6 = 8'h16; localparam ADDR_KEY7 = 8'h17; - localparam ADDR_WRITE_DATA = 8'h20; - - localparam ADDR_READ_DATA = 8'h30; + localparam ADDR_R_DATA0 = 8'h80; + localparam ADDR_R_DATA127 = 8'hff; //---------------------------------------------------------------- @@ -356,7 +356,6 @@ module tb_keywrap(); $display("** TC kwp_ae_128_4 START."); - // Write key and keylength, we also want to encrypt/wrap. write_word(ADDR_KEY0, 32'hc03db3cc); write_word(ADDR_KEY1, 32'h1416dcd1); @@ -368,8 +367,9 @@ module tb_keywrap(); dump_dut_state(); - // Initialize the AES engine and reset counters. + // Initialize the AES engine (to expand the key). // Wait for init to complete. + // Note, not actually needed to wait. We can write R data during init. $display("* Trying to initialize."); write_word(ADDR_CTRL, 32'h00000001); #(2 * CLK_PERIOD); @@ -377,24 +377,24 @@ module tb_keywrap(); $display("* Init should be done."); + // Set the length or R in blocks. + // Write the R bank to be written to. // Write the R blocks to be processed. - write_word(ADDR_WRITE_DATA, 32'h46f87f58); - write_word(ADDR_WRITE_DATA, 32'hcdda4200); - - write_word(ADDR_WRITE_DATA, 32'hf53d99ce); - write_word(ADDR_WRITE_DATA, 32'h2e49bdb7); - - write_word(ADDR_WRITE_DATA, 32'h6212511f); - write_word(ADDR_WRITE_DATA, 32'he0cd4d0b); - - write_word(ADDR_WRITE_DATA, 32'h5f37a27d); - write_word(ADDR_WRITE_DATA, 32'h45a28800); - - // Write magic words to the A state regs. - // Also set the rlen. + write_word(ADDR_RLEN, 32'h00000004); + write_word(ADDR_R_BANK, 32'h0); + + write_word(ADDR_R_DATA0 + 0, 32'h46f87f58); + write_word(ADDR_R_DATA0 + 1, 32'hcdda4200); + write_word(ADDR_R_DATA0 + 2, 32'hf53d99ce); + write_word(ADDR_R_DATA0 + 3, 32'h2e49bdb7); + write_word(ADDR_R_DATA0 + 4, 32'h6212511f); + write_word(ADDR_R_DATA0 + 5, 32'he0cd4d0b); + write_word(ADDR_R_DATA0 + 6, 32'h5f37a27d); + write_word(ADDR_R_DATA0 + 7, 32'h45a28800); + + // Write magic words to A. write_word(ADDR_A0, 32'ha65959a6); write_word(ADDR_A1, 32'h0000001f); - write_word(ADDR_RLEN, 32'h00000004); $display("* Contents of memory and dut before wrap processing:"); @@ -423,7 +423,7 @@ module tb_keywrap(); // Read and display the R blocks that has been processed. for (i = 0 ; i < 8 ; i = i + 1) begin - read_word(ADDR_READ_DATA); + read_word(ADDR_R_DATA0 + i); $display("mem[0x%07x] = 0x%08x", i, read_data); end |