diff --git a/src/dynarec/la64/dynarec_la64_pass2.h b/src/dynarec/la64/dynarec_la64_pass2.h
index df7d78092..6410790de 100644
--- a/src/dynarec/la64/dynarec_la64_pass2.h
+++ b/src/dynarec/la64/dynarec_la64_pass2.h
@@ -15,6 +15,7 @@
     if (ninst) {                                                                                                                                                               \
         dyn->insts[ninst].address = (dyn->insts[ninst - 1].address + dyn->insts[ninst - 1].size);                                                                              \
         dyn->insts_size += 1 + ((dyn->insts[ninst - 1].x64.size > (dyn->insts[ninst - 1].size / 4)) ? dyn->insts[ninst - 1].x64.size : (dyn->insts[ninst - 1].size / 4)) / 15; \
+        dyn->insts[ninst].ymm0_pass2 = dyn->ymm_zero;                                                                                                                          \
     }
 #define INST_EPILOG dyn->insts[ninst].epilog = dyn->native_size;
 #define INST_NAME(name)
diff --git a/src/dynarec/la64/dynarec_la64_pass3.h b/src/dynarec/la64/dynarec_la64_pass3.h
index ecaf8a774..34654f990 100644
--- a/src/dynarec/la64/dynarec_la64_pass3.h
+++ b/src/dynarec/la64/dynarec_la64_pass3.h
@@ -16,8 +16,10 @@
 #define MESSAGE(A, ...) \
     if (box64_dynarec_dump) dynarec_log(LOG_NONE, __VA_ARGS__)
 #define NEW_INST \
-    if (ninst)   \
-        addInst(dyn->instsize, &dyn->insts_size, dyn->insts[ninst - 1].x64.size, dyn->insts[ninst - 1].size / 4);
+    if (ninst) {  \
+        addInst(dyn->instsize, &dyn->insts_size, dyn->insts[ninst - 1].x64.size, dyn->insts[ninst - 1].size / 4); \
+        dyn->insts[ninst].ymm0_pass3 = dyn->ymm_zero; \
+    }
 #define INST_EPILOG
 #define INST_NAME(name) inst_name_pass3(dyn, ninst, name, rex)
 #define TABLE64(A, V)                                 \
diff --git a/src/dynarec/la64/dynarec_la64_private.h b/src/dynarec/la64/dynarec_la64_private.h
index 9086e68fc..9fa7618b1 100644
--- a/src/dynarec/la64/dynarec_la64_private.h
+++ b/src/dynarec/la64/dynarec_la64_private.h
@@ -85,6 +85,7 @@ typedef struct instruction_la64_s {
     uint16_t            ymm0_add;   // the ymm0 added by the opcode
     uint16_t            ymm0_sub;   // the ymm0 removed by the opcode
     uint16_t            ymm0_out;   // the ymmm0 at th end of the opcode
+    uint16_t            ymm0_pass2, ymm0_pass3;
     uint8_t             barrier_maybe;
     uint8_t             will_write;
     uint8_t             last_write;
diff --git a/src/dynarec/rv64/dynarec_rv64_pass2.h b/src/dynarec/rv64/dynarec_rv64_pass2.h
index 1c6e47348..f29cf267c 100644
--- a/src/dynarec/rv64/dynarec_rv64_pass2.h
+++ b/src/dynarec/rv64/dynarec_rv64_pass2.h
@@ -11,6 +11,7 @@
         if(ninst) {                                                                                     \
                 dyn->insts[ninst].address = (dyn->insts[ninst-1].address+dyn->insts[ninst-1].size);     \
                 dyn->insts_size += 1+((dyn->insts[ninst-1].x64.size>(dyn->insts[ninst-1].size/4))?dyn->insts[ninst-1].x64.size:(dyn->insts[ninst-1].size/4))/15; \
+                dyn->insts[ninst].ymm0_pass2 = dyn->ymm_zero;                                           \
         }
 #define INST_EPILOG dyn->insts[ninst].epilog = dyn->native_size; 
 #define INST_NAME(name) 
diff --git a/src/dynarec/rv64/dynarec_rv64_pass3.h b/src/dynarec/rv64/dynarec_rv64_pass3.h
index 459c4e13b..4a32a7283 100644
--- a/src/dynarec/rv64/dynarec_rv64_pass3.h
+++ b/src/dynarec/rv64/dynarec_rv64_pass3.h
@@ -14,8 +14,10 @@
 #define MESSAGE(A, ...)  if(box64_dynarec_dump) dynarec_log(LOG_NONE, __VA_ARGS__)
 #define NEW_INST        \
     if(box64_dynarec_dump) print_newinst(dyn, ninst);   \
-    if(ninst)                                           \
-        addInst(dyn->instsize, &dyn->insts_size, dyn->insts[ninst-1].x64.size, dyn->insts[ninst-1].size/4);
+    if(ninst) {                                         \
+        addInst(dyn->instsize, &dyn->insts_size, dyn->insts[ninst-1].x64.size, dyn->insts[ninst-1].size/4); \
+        dyn->insts[ninst].ymm0_pass3 = dyn->ymm_zero;   \
+    }
 #define INST_EPILOG
 #define INST_NAME(name) inst_name_pass3(dyn, ninst, name, rex)
 
diff --git a/src/dynarec/rv64/dynarec_rv64_private.h b/src/dynarec/rv64/dynarec_rv64_private.h
index 9d3240fc2..1b32b7fee 100644
--- a/src/dynarec/rv64/dynarec_rv64_private.h
+++ b/src/dynarec/rv64/dynarec_rv64_private.h
@@ -95,6 +95,7 @@ typedef struct instruction_rv64_s {
     uint16_t            ymm0_add;   // the ymm0 added by the opcode
     uint16_t            ymm0_sub;   // the ymm0 removed by the opcode
     uint16_t            ymm0_out;   // the ymmm0 at th end of the opcode
+    uint16_t            ymm0_pass2, ymm0_pass3;
     int                 barrier_maybe;
     flagcache_t         f_exit;     // flags status at end of intruction
     extcache_t          e;          // extcache at end of intruction (but before poping)