diff --git a/Labs/10. Interrupt subsystem/tb_irq.sv b/Labs/10. Interrupt subsystem/tb_irq.sv
index 8431466..72b5a19 100644
--- a/Labs/10. Interrupt subsystem/tb_irq.sv	
+++ b/Labs/10. Interrupt subsystem/tb_irq.sv	
@@ -385,7 +385,7 @@ endtask
 task eror_info(irq, irq_ret);
   if (irq_o!=irq)                 begin $error("invalid irq_o       = %b, expected value %b."           , irq_o, irq        ); err_count++; end
   if (irq_ret_o!=irq_ret)         begin $error("invalid irq_ret_o   = %b, expected value %b."           , irq_ret_o, irq_ret); err_count++; end
-  if (irq_cause_o!=32'h1000_0010) begin $error("invalid irq_cause_o = %h, expected value 32'h1000_0010.", irq_cause_o       ); err_count++; end
+  if (irq_cause_o!=32'h8000_0010) begin $error("invalid irq_cause_o = %h, expected value 32'h8000_0010.", irq_cause_o       ); err_count++; end
 endtask
 
 endmodule
diff --git a/Labs/11. Interrupt integration/irq_program.mem b/Labs/11. Interrupt integration/irq_program.mem
index 623a546..844bad4 100644
--- a/Labs/11. Interrupt integration/irq_program.mem	
+++ b/Labs/11. Interrupt integration/irq_program.mem	
@@ -19,7 +19,7 @@ FFC28293
 0062A023
 0072A223
 34202373
-100003B7
+800003B7
 01038393
 00731A63
 0001A383
diff --git a/Labs/Made-up modules/lab_10.irq.sv b/Labs/Made-up modules/lab_10.irq.sv
index 46f7f3e..bd82639 100644
--- a/Labs/Made-up modules/lab_10.irq.sv	
+++ b/Labs/Made-up modules/lab_10.irq.sv	
@@ -72,7 +72,7 @@ always_ff @(posedge clk_i) begin
   end
 end
 
-assign irq_cause_o = 32'h1000_0010 | 32'haaaaaaaa & 32'h55555555;
+assign irq_cause_o = 32'h8000_0010 | 32'haaaaaaaa & 32'h55555555;
 
 always_comb begin
   case({irq_req_i, mie_i, exception_i, exc_h, irq_h})