merging changes from OPAE branch making this branch

old_rtl/interfaces/VX_warp_ctl_inter.v

@@ -0,0 +1,36 @@
+
+`include "../VX_define.v"
+
+`ifndef VX_WARP_CTL_INTER
+
+`define VX_WARP_CTL_INTER
+
+interface VX_warp_ctl_inter ();
+
+	wire[`NW_M1:0] warp_num;
+	wire           change_mask;
+	wire[`NT_M1:0] thread_mask;
+
+	wire           wspawn;
+	wire[31:0]     wspawn_pc;
+	wire[`NW-1:0]  wspawn_new_active;
+
+	wire           ebreak;
+
+	// barrier
+	wire              is_barrier;
+	wire[31:0]        barrier_id;
+	wire[$clog2(`NW):0]  num_warps;
+
+	wire           is_split;
+	wire           dont_split;
+	wire[`NW_M1:0] split_warp_num;
+	wire[`NT_M1:0] split_new_mask;
+	wire[`NT_M1:0] split_later_mask;
+	wire[31:0]     split_save_pc;
+
+
+endinterface
+
+
+`endif