vecadd bug fixing + ebreak for termination

rtl/VX_decode.v

@@ -8,7 +8,9 @@ module VX_decode(
 	// Outputs
 	VX_frE_to_bckE_req_inter VX_frE_to_bckE_req,
 	VX_wstall_inter          VX_wstall,
-	VX_join_inter            VX_join
+	VX_join_inter            VX_join,
+
+	output wire              terminate_sim
 
 );
 
@@ -224,7 +226,7 @@ module VX_decode(
 		wire ebreak = (curr_opcode == `SYS_INST) && (jal_sys_jal && (|in_valid));
 		assign VX_frE_to_bckE_req.ebreak = ebreak;
 		wire out_ebreak = ebreak;
-
+		assign terminate_sim = is_e_inst;
 
 
 		// CSR

rtl/VX_front_end.v

@@ -31,6 +31,11 @@ wire total_freeze = schedule_delay;
 // 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();
@@ -47,7 +52,7 @@ VX_fetch vx_fetch(
 
 		.icache_request     (icache_request_fe),
 		.VX_branch_rsp      (VX_branch_rsp),
-		.out_ebreak         (fetch_ebreak), // fetch_ebreak
+		.out_ebreak         (vortex_ebreak), // fetch_ebreak
 		.fe_inst_meta_fd    (fe_inst_meta_fd)
 	);
 
@@ -64,7 +69,8 @@ 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)
+		.VX_join           (VX_join),
+		.terminate_sim     (terminate_sim)
 	);
 
 wire no_br_stall = 0;

rtl/modelsim/vortex_tb.v

@@ -88,6 +88,7 @@ reg         out_ebreak;
 	initial begin
 		// $fdumpfile("vortex1.vcd");
 		load_file("../../runtime/mains/simple/vx_simple_main.hex");
+		// load_file("../../emulator/riscv_tests/rv32ui-p-add.hex");
 		//load_file("../../kernel/vortex_test.hex");
 		$dumpvars(0, vortex_tb);
 		reset = 1;