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-rw-r--r--src/dynarec/rv64/dynarec_rv64_f20f.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/dynarec/rv64/dynarec_rv64_f20f.c b/src/dynarec/rv64/dynarec_rv64_f20f.c
index 95f526f0..35fcf562 100644
--- a/src/dynarec/rv64/dynarec_rv64_f20f.c
+++ b/src/dynarec/rv64/dynarec_rv64_f20f.c
@@ -184,8 +184,9 @@ uintptr_t dynarec64_F20F(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int
             GETEXSD(d0, 0);
             GETGXSD_empty(d1);
             if(!box64_dynarec_fastnan) {
-                FMVDX(d1, xZR);
-                FLTD(x3, d0, d1);
+                v0 = fpu_get_scratch(dyn);  // need a scratch in case d0 == d1
+                FMVDX(v0, xZR);
+                FLTD(x3, d0, v0);
             }
             FSQRTD(d1, d0);
             if(!box64_dynarec_fastnan) {