diff options
Diffstat (limited to 'src/rtl/montprod.v')
| -rw-r--r-- | src/rtl/montprod.v | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/src/rtl/montprod.v b/src/rtl/montprod.v index ee87b97..a0ca302 100644 --- a/src/rtl/montprod.v +++ b/src/rtl/montprod.v @@ -47,7 +47,7 @@ module montprod #(parameter OPW = 32, parameter ADW = 8) input wire calculate, output wire ready, - input [(ADW - 1) : 0] length, + input wire [(ADW - 1) : 0] length, output wire [(ADW - 1) : 0] opa_addr, input wire [(OPW - 1) : 0] opa_data, @@ -319,11 +319,6 @@ module montprod #(parameter OPW = 32, parameter ADW = 8) s_mem_read_addr = length_m1; end - CTRL_LOOP_BQ: - begin - s_mem_read_addr = length_m1; - end - CTRL_CALC_ADD: begin //s = (s + q*M + b*A) >>> 1;, if(b==1) S+= A. Takes (1..length) cycles. @@ -403,7 +398,8 @@ module montprod #(parameter OPW = 32, parameter ADW = 8) else q_new = s_mem_read_data[0] ^ (opa_data[0] & b_new); - b_bit_index_new = (2**(13 - ADW) - 1) - loop_ctr_reg[(13 - ADW - 1) : 0]; + // B_bit_index = 5'h1f - loop_counter[4:0]; + b_bit_index_new = ((2**(13 - ADW)) - 1'b1) - loop_ctr_reg[(13 - ADW - 1) : 0]; b_word_index = loop_ctr_reg[12 : (13 - ADW)]; end // bq |