Changeset 102377 in vbox for trunk/src/VBox/VMM/include/IEMN8veRecompilerEmit.h

Timestamp:

Nov 29, 2023 11:12:52 AM (15 months ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

160513

Message:

VMM/IEM: Use UBFX instead of BFI for loading a high 8-bit register into a GPR (iemNativeEmitLoadGprFromGpr8Hi). bugref:10371

File:

• trunk/src/VBox/VMM/include/IEMN8veRecompilerEmit.h (modified) (1 diff)

trunk/src/VBox/VMM/include/IEMN8veRecompilerEmit.h ¶

@@ -718 +718 @@
 
 #elif RT_ARCH_ARM64
-    /* bfi gprdst, gprsrc, #8, #8 */
+    /* ubfx gprdst, gprsrc, #8, #8 - gprdst = gprsrc[15:8] */
     uint32_t * const pu32CodeBuf = iemNativeInstrBufEnsure(pReNative, off, 1);
-    pu32CodeBuf[off++] = Armv8A64MkInstrBfi(iGprDst, iGprSrc, 8, 8, false /*f64Bit*/);
+    pu32CodeBuf[off++] = Armv8A64MkInstrUbfx(iGprDst, iGprSrc, 8, 8, false /*f64Bit*/);
 
 #else