merging changes from OPAE branch making this branch

2020-03-27 20:19:16 -04:00
parent 614797e52f
commit 5a5c9f3981
267 changed files with 498191 additions and 166 deletions
--- a/old_rtl/VX_front_end.v
+++ b/old_rtl/VX_front_end.v
@@ -0,0 +1,89 @@
+`include "VX_define.v"
+
+module VX_front_end (
+	input wire clk,
+	input wire reset,
+
+	input wire           schedule_delay,
+
+	VX_warp_ctl_inter         VX_warp_ctl,
+
+	VX_icache_response_inter icache_response_fe,
+	VX_icache_request_inter  icache_request_fe,
+
+	VX_jal_response_inter    VX_jal_rsp,
+	VX_branch_response_inter VX_branch_rsp,
+
+	VX_frE_to_bckE_req_inter  VX_bckE_req,
+
+	output wire fetch_ebreak
+);
+
+
+VX_inst_meta_inter        fe_inst_meta_fd();
+
+VX_frE_to_bckE_req_inter VX_frE_to_bckE_req();
+VX_inst_meta_inter       fd_inst_meta_de();
+
+wire total_freeze = schedule_delay;
+
+/* verilator lint_off UNUSED */
+// wire real_fetch_ebreak;
+/* verilator lint_on UNUSED */
+
+wire vortex_ebreak;
+wire terminate_sim;
+
+assign fetch_ebreak = vortex_ebreak || terminate_sim;
+
+
+VX_wstall_inter          VX_wstall();
+VX_join_inter            VX_join();
+
+VX_fetch vx_fetch(
+		.clk                (clk),
+		.reset              (reset),
+		.VX_wstall          (VX_wstall),
+		.VX_join            (VX_join),
+		.schedule_delay     (schedule_delay),
+		.VX_jal_rsp         (VX_jal_rsp),
+		.icache_response    (icache_response_fe),
+		.VX_warp_ctl        (VX_warp_ctl),
+
+		.icache_request     (icache_request_fe),
+		.VX_branch_rsp      (VX_branch_rsp),
+		.out_ebreak         (vortex_ebreak), // fetch_ebreak
+		.fe_inst_meta_fd    (fe_inst_meta_fd)
+	);
+
+VX_f_d_reg vx_f_d_reg(
+		.clk            (clk),
+		.reset          (reset),
+		.in_freeze      (total_freeze),
+		.fe_inst_meta_fd(fe_inst_meta_fd),
+		.fd_inst_meta_de(fd_inst_meta_de)
+	);
+
+
+VX_decode vx_decode(
+		.fd_inst_meta_de   (fd_inst_meta_de),
+		.VX_frE_to_bckE_req(VX_frE_to_bckE_req),
+		.VX_wstall         (VX_wstall),
+		.VX_join           (VX_join),
+		.terminate_sim     (terminate_sim)
+	);
+
+wire no_br_stall = 0;
+
+VX_d_e_reg vx_d_e_reg(
+		.clk            (clk),
+		.reset          (reset),
+		.in_branch_stall(no_br_stall),
+		.in_freeze      (total_freeze),
+		.VX_frE_to_bckE_req(VX_frE_to_bckE_req),
+		.VX_bckE_req       (VX_bckE_req)
+	);
+
+endmodule
+
+