diff --git a/include/defines.sv b/include/defines.sv
index 2ec59260..0bf22f6e 100644
--- a/include/defines.sv
+++ b/include/defines.sv
@@ -56,10 +56,10 @@
 `define OPCODE_CUST1      7'h2b
 
 // PULP custom
-`define OPCODE_STORE_POST 7'h27
-`define OPCODE_LOAD_POST  7'h07
-`define OPCODE_HWLOOP     7'h6b
-`define OPCODE_PULP_OP    7'h57
+`define OPCODE_LOAD_POST  7'h0b
+`define OPCODE_STORE_POST 7'h2b
+`define OPCODE_PULP_OP    7'h5b
+`define OPCODE_HWLOOP     7'h7b
 
 
 // instruction masks (for tracer)