mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-06-06 14:13:23 +00:00
Code Activity

Added techmap CONSTMAP feature

Browse source
This commit is contained in:
Clifford Wolf 2014-07-30 22:04:30 +02:00
parent 7daad40ca4
commit 2541489105
3 changed files with 126 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

6
techlibs/common/stdcells.v
View file

@ -152,7 +152,8 @@ output [Y_WIDTH-1:0] Y;
localparam WIDTH = `MAX(A_WIDTH, Y_WIDTH);
localparam BB_WIDTH = `MIN($clog2(shift_left ? Y_WIDTH : A_SIGNED ? WIDTH : A_WIDTH) + 1, B_WIDTH);
wire [1023:0] _TECHMAP_DO_ = "proc; opt_muxtree; opt_const -mux_undef -mux_bool -fine;;;";
wire [1023:0] _TECHMAP_DO_00_ = "proc;;";
wire [1023:0] _TECHMAP_DO_01_ = "CONSTMAP; opt_muxtree; opt_const -mux_undef -mux_bool -fine;;;";
integer i;
reg [WIDTH-1:0] buffer;
@ -198,7 +199,8 @@ localparam WIDTH = `MAX(A_WIDTH, Y_WIDTH) + (B_SIGNED ? 2**(BB_WIDTH-1) : 0);
parameter _TECHMAP_CELLTYPE_ = "";
localparam extbit = _TECHMAP_CELLTYPE_ == "$shift" ? 1'b0 : 1'bx;
wire [1023:0] _TECHMAP_DO_ = "proc; opt_muxtree; opt_const -mux_undef -mux_bool -fine;;;";
wire [1023:0] _TECHMAP_DO_00_ = "proc;;";
wire [1023:0] _TECHMAP_DO_01_ = "CONSTMAP; opt_muxtree; opt_const -mux_undef -mux_bool -fine;;;";
integer i;
reg [WIDTH-1:0] buffer;