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zcash-fpga
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Fix multi driven net

This commit is contained in:
bsdevlin 2019-06-26 18:43:44 +08:00
parent 0f8da6525c
commit 4b772fed16
1 changed files with 13 additions and 3 deletions
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16
zcash_fpga/src/rtl/secp256k1/secp256k1_point_mult.sv
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@ -316,8 +316,19 @@ end
always_ff @ (posedge i_clk) begin
if (i_rst) begin
add_out_if[2].reset_source();
sub_out_if[2].reset_source();
add_out_if[2].val <= 0;
add_out_if[2].sop <= 0;
add_out_if[2].eop <= 0;
add_out_if[2].ctl <= 0;
add_out_if[2].mod <= 0;
add_out_if[2].err <= 0;
sub_out_if[2].val <= 0;
sub_out_if[2].sop <= 0;
sub_out_if[2].eop <= 0;
sub_out_if[2].ctl <= 0;
sub_out_if[2].mod <= 0;
sub_out_if[2].err <= 0;
end else begin
if (~add_out_if[2].val || (add_out_if[2].val && add_out_if[2].rdy)) begin
add_out_if[2].val <= add_in_if[2].val;
@ -327,7 +338,6 @@ always_ff @ (posedge i_clk) begin
add_out_if[2].eop <= 1;
end
if (~sub_out_if[2].val || (sub_out_if[2].val && sub_out_if[2].rdy)) begin
sub_in_if[2].rdy <= sub_out_if[2].rdy;
sub_out_if[2].val <= sub_in_if[2].val;
sub_out_if[2].dat <= fe_sub(sub_in_if[2].dat[0 +: 256], sub_in_if[2].dat[256 +: 256]);
sub_out_if[2].ctl <= sub_in_if[2].ctl;