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authorptitSeb <sebastien.chev@gmail.com>2024-09-14 15:21:15 +0200
committerptitSeb <sebastien.chev@gmail.com>2024-09-14 15:21:15 +0200
commit3b8ba5dfa645e267fe6a949985f1e2acdb61b2d4 (patch)
tree2d9c20b0a6f31d6733c9a77d7b90f30451b0107f /src/dynarec
parent2e1b58a876d1760e83565d18e8845d9997adcfbf (diff)
downloadbox64-3b8ba5dfa645e267fe6a949985f1e2acdb61b2d4.tar.gz
box64-3b8ba5dfa645e267fe6a949985f1e2acdb61b2d4.zip
Added 66 F3 0F BD opcode ([ARM64_DYNAREC] Too)
Diffstat (limited to 'src/dynarec')
-rw-r--r--src/dynarec/arm64/dynarec_arm64_66f30f.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/dynarec/arm64/dynarec_arm64_66f30f.c b/src/dynarec/arm64/dynarec_arm64_66f30f.c
index 11a18eba..66e349df 100644
--- a/src/dynarec/arm64/dynarec_arm64_66f30f.c
+++ b/src/dynarec/arm64/dynarec_arm64_66f30f.c
@@ -56,6 +56,27 @@ uintptr_t dynarec64_66F30F(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int
 
     switch(opcode) {
 
+        case 0xBD:
+            INST_NAME("LZCNT Gw, Ew");
+            SETFLAGS(X_CF|X_ZF, SF_SUBSET);
+            SET_DFNONE(x1);
+            nextop = F8;
+            GETEW(x1, 0);
+            GETGW(x2);
+            IFX(X_CF) {
+                TSTxw_REG(ed, ed);
+                CSETw(x3, cEQ);
+                BFIw(xFlags, x3, F_CF, 1);  // CF = is source 0?
+            }
+            LSLw_IMM(ed, ed, 16);
+            CLZw(gd, ed);
+            IFX(X_ZF) {
+                TSTxw_REG(gd, gd);
+                CSETw(x3, cEQ);
+                BFIw(xFlags, x3, F_ZF, 1);  // ZF = is dest 0?
+            }
+            EWBACK;
+            break;
 
         default:
             DEFAULT;