diff options
| author | Joachim StroĢmbergson <joachim@secworks.se> | 2018-07-05 13:23:10 +0200 |
|---|---|---|
| committer | Joachim StroĢmbergson <joachim@secworks.se> | 2018-07-05 13:23:10 +0200 |
| commit | e7aa2b3d029e617f1461343770358e67f3febd32 (patch) | |
| tree | 3b123751c90aeaa0f7d4c861af808e55eceb6574 /src | |
| parent | 05805e7933df2dc4f19fe6a4fca9425fa27ab09b (diff) | |
Removed a few states and a few cycles.
Diffstat (limited to 'src')
| -rw-r--r-- | src/rtl/keywrap_core.v | 33 |
1 files changed, 11 insertions, 22 deletions
diff --git a/src/rtl/keywrap_core.v b/src/rtl/keywrap_core.v index 0788024..28e8f74 100644 --- a/src/rtl/keywrap_core.v +++ b/src/rtl/keywrap_core.v @@ -72,17 +72,13 @@ module keywrap_core ( localparam OUTER_LOOP_MAX = 6 - 1; localparam CTRL_IDLE = 4'h0; - - localparam CTRL_INIT_START = 4'h1; - localparam CTRL_INIT_WAIT = 4'h2; - - localparam CTRL_NEXT_START = 4'h4; - localparam CTRL_NEXT_LOOP = 4'h5; - localparam CTRL_NEXT_WAIT0 = 4'h6; - localparam CTRL_NEXT_WAIT = 4'h7; - localparam CTRL_NEXT_UPDATE = 4'h9; - localparam CTRL_NEXT_CHECK = 4'ha; - localparam CTRL_NEXT_FINALIZE = 4'hb; + localparam CTRL_INIT_WAIT = 4'h1; + localparam CTRL_NEXT_LOOP = 4'h2; + localparam CTRL_NEXT_WAIT0 = 4'h3; + localparam CTRL_NEXT_WAIT = 4'h4; + localparam CTRL_NEXT_UPDATE = 4'h5; + localparam CTRL_NEXT_CHECK = 4'h6; + localparam CTRL_NEXT_FINALIZE = 4'h7; //---------------------------------------------------------------- @@ -339,36 +335,29 @@ module keywrap_core ( begin if (init) begin + aes_init = 1'h1; ready_new = 1'h0; ready_we = 1'h1; valid_new = 1'h0; valid_we = 1'h1; - keywrap_core_ctrl_new = CTRL_INIT_START; + keywrap_core_ctrl_new = CTRL_INIT_WAIT; keywrap_core_ctrl_we = 1'h1; end if (next) begin + block_ctr_rst = 1'h1; + iteration_ctr_rst = 1'h1; ready_new = 1'h0; ready_we = 1'h1; valid_new = 1'h0; valid_we = 1'h1; init_a = 1'h1; - block_ctr_rst = 1'h1; - iteration_ctr_rst = 1'h1; keywrap_core_ctrl_new = CTRL_NEXT_LOOP; keywrap_core_ctrl_we = 1'h1; end end - - CTRL_INIT_START: - begin - aes_init = 1'h1; - keywrap_core_ctrl_new = CTRL_INIT_WAIT; - keywrap_core_ctrl_we = 1'h1; - end - CTRL_INIT_WAIT: begin if (aes_ready) |