[DYNAREC] Added 66 0F 51 opcode

1 files changed, 20 insertions, 1 deletions

diff --git a/src/dynarec/arm64/dynarec_arm64_660f.c b/src/dynarec/arm64/dynarec_arm64_660f.c
index 2d3d048b..bcdc677b 100755
--- a/src/dynarec/arm64/dynarec_arm64_660f.c
+++ b/src/dynarec/arm64/dynarec_arm64_660f.c
@@ -669,7 +669,26 @@ uintptr_t dynarec64_660F(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int n
             LSRx(gd, gd, 63);

             BFIx(gd, x1, 1, 1);

             break;    

-            

+        case 0x51:

+            INST_NAME("SQRTPD Gx, Ex");

+            nextop = F8;

+            GETEX(q0, 0, 0);

+            GETGX_empty(q1);

+            if(!box64_dynarec_fastnan) {

+                v0 = fpu_get_scratch(dyn);

+                v1 = fpu_get_scratch(dyn);

+                // check if any input value was NAN

+                VFCMEQQD(v0, q0, q0);    // 0 if NAN, 1 if not NAN

+            }

+            VFSQRTQD(q1, q0);

+            if(!box64_dynarec_fastnan) {

+                VFCMEQQD(v1, q1, q1);    // 0 => out is NAN

+                VBICQ(v1, v0, v1);      // forget it in any input was a NAN already

+                VSHLQ_64(v1, v1, 63);   // only keep the sign bit

+                VORRQ(q1, q1, v1);      // NAN -> -NAN

+            }

+            break;

+     

         case 0x54:

             INST_NAME("ANDPD Gx, Ex");

             nextop = F8;