Changeset 102473 in vbox for trunk/src/VBox/VMM/VMMAll/IEMAllInstOneByte.cpp.h

Timestamp:

Dec 5, 2023 12:54:55 PM (12 months ago)

Author:

vboxsync

Message:

VMM/IEM: optimize todo. bugref:10371

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllInstOneByte.cpp.h (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllInstOneByte.cpp.h

@@ -5837 +5837 @@
             IEM_MC_CALC_RM_EFF_ADDR(GCPtrEffSrc, bRm, 0);
             IEMOP_HLP_DONE_DECODING_NO_LOCK_PREFIX();
+            /** @todo optimize: This value casting/masking can be skipped if addr-size ==
+             *        operand-size, which is usually the case.  It'll save an instruction
+             *        and a register. */
             IEM_MC_LOCAL(uint16_t, u16Cast);
             IEM_MC_ASSIGN_TO_SMALLER(u16Cast, GCPtrEffSrc);
@@ -5849 +5852 @@
             IEM_MC_CALC_RM_EFF_ADDR(GCPtrEffSrc, bRm, 0);
             IEMOP_HLP_DONE_DECODING_NO_LOCK_PREFIX();
+            /** @todo optimize: This value casting/masking can be skipped if addr-size ==
+             *        operand-size, which is usually the case.  It'll save an instruction
+             *        and a register. */
             IEM_MC_LOCAL(uint32_t, u32Cast);
             IEM_MC_ASSIGN_TO_SMALLER(u32Cast, GCPtrEffSrc);