diff options
Diffstat (limited to 'src/rtl')
| -rw-r--r-- | src/rtl/montprod.v | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/rtl/montprod.v b/src/rtl/montprod.v index 1b9346f..9b112f4 100644 --- a/src/rtl/montprod.v +++ b/src/rtl/montprod.v @@ -247,6 +247,7 @@ module montprod( add_carry_in_sm_reg <= add_carry_in_sm_new; B_bit_index_reg <= B_bit_index; + q_reg <= q; b_reg <= b; @@ -404,28 +405,28 @@ module montprod( always @* begin : s_writer shr_carry_in_new = 1'b0; - s_mux_new = SMUX_0; + s_mux_new = SMUX_0; s_mem_we_new = 1'b0; case (montprod_ctrl_reg) CTRL_INIT_S: begin - s_mem_we_new = 1'b1; s_mux_new = SMUX_0; // write 0 + s_mem_we_new = 1'b1; end CTRL_L_CALC_SM: begin //s = (s + q*M + b*A) >>> 1;, if(q==1) S+= M. Takes (1..length) cycles. - s_mem_we_new = q_reg; - s_mux_new = SMUX_ADD_SM; + s_mux_new = SMUX_ADD_SM; + s_mem_we_new = q_reg; end CTRL_L_CALC_SA: begin //s = (s + q*M + b*A) >>> 1;, if(b==1) S+= A. Takes (1..length) cycles. - s_mem_we_new = b_reg; - s_mux_new = SMUX_ADD_SA; + s_mux_new = SMUX_ADD_SA; + s_mem_we_new = b_reg; end CTRL_L_CALC_SDIV2: |