Added more micro-operations, entire Montgomery exponentiation ladder works now.

1 files changed, 7 insertions, 1 deletions

diff --git a/rtl/modexpng_parameters.vh b/rtl/modexpng_parameters.vh
index 6e6c3ca..c7566ad 100644
--- a/rtl/modexpng_parameters.vh
+++ b/rtl/modexpng_parameters.vh
@@ -23,7 +23,7 @@ localparam MAC_W      = 47;
 localparam BUS_DATA_W = 32;
 localparam BUS_OP_ADDR_W = cryptech_clog2(MAX_OP_W / BUS_DATA_W);
 
-
+localparam BIT_INDEX_W = cryptech_clog2(MAX_OP_W);
 
 localparam BANK_ADDR_W = 3;
 localparam OP_ADDR_W   = cryptech_clog2(MAX_OP_W / WORD_W); 
@@ -33,6 +33,8 @@ localparam MAC_INDEX_W = cryptech_clog2(NUM_MULTS);
 
 localparam CARRY_W = WORD_EXT_W - WORD_W;
 
+localparam WORD_MUX_W = cryptech_clog2(WORD_W);
+
 localparam [CARRY_W-1:0] CARRY_ZERO = {CARRY_W{1'b0}};
 
 localparam [BANK_ADDR_W-1:0] BANK_WIDE_A = 3'd0;
@@ -80,6 +82,10 @@ localparam [BANK_ADDR_W-1:0] BANK_OUT_YM        = 3'd2;
 
 localparam [BANK_ADDR_W-1:0] BANK_DNC = {BANK_ADDR_W{1'bX}};
 
+localparam [OP_ADDR_W-1:0] OP_ADDR_LADDER_LAST = 3; // 0..3, i.e. <dummy>, D, P, Q
+
+localparam [BIT_INDEX_W-1:0] BIT_INDEX_ZERO = {BIT_INDEX_W{1'b0}};
+
 localparam [OP_ADDR_W-1:0] OP_ADDR_EXT_COEFF = 0;
 localparam [OP_ADDR_W-1:0] OP_ADDR_EXT_Q     = 1;