diff options
Diffstat (limited to 'src/rtl/sha512_w_mem.v')
| -rw-r--r-- | src/rtl/sha512_w_mem.v | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/src/rtl/sha512_w_mem.v b/src/rtl/sha512_w_mem.v index f4f8a1c..4aadb50 100644 --- a/src/rtl/sha512_w_mem.v +++ b/src/rtl/sha512_w_mem.v @@ -83,12 +83,14 @@ module sha512_w_mem( reg [6 : 0] w_ctr_new; reg w_ctr_we; + reg [63 : 0] w_reg; + reg [63 : 0] w_new; + //---------------------------------------------------------------- // Wires. //---------------------------------------------------------------- reg [63 : 0] w_tmp; - reg [63 : 0] w_new; //---------------------------------------------------------------- @@ -105,28 +107,20 @@ module sha512_w_mem( //---------------------------------------------------------------- always @ (posedge clk or negedge reset_n) begin : reg_update + integer i; + if (!reset_n) begin - w_mem[00] <= 64'h0; - w_mem[01] <= 64'h0; - w_mem[02] <= 64'h0; - w_mem[03] <= 64'h0; - w_mem[04] <= 64'h0; - w_mem[05] <= 64'h0; - w_mem[06] <= 64'h0; - w_mem[07] <= 64'h0; - w_mem[08] <= 64'h0; - w_mem[09] <= 64'h0; - w_mem[10] <= 64'h0; - w_mem[11] <= 64'h0; - w_mem[12] <= 64'h0; - w_mem[13] <= 64'h0; - w_mem[14] <= 64'h0; - w_mem[15] <= 64'h0; - w_ctr_reg <= 7'h0; + for (i = 0 ; i < 16 ; i = i + 1) + w_mem[i] <= 64'h0; + + w_ctr_reg <= 7'h0; + w_reg <= 64'h0; end else begin + w_reg <= w_new; + if (w_mem_we) begin w_mem[00] <= w_mem00_new; @@ -169,7 +163,7 @@ module sha512_w_mem( end else begin - w_tmp = w_new; + w_tmp = w_reg; end end // select_w |