Changeset 95345 in vbox for trunk/src/VBox/VMM/VMMAll/IEMAllAImpl.asm

Timestamp:

Jun 22, 2022 4:15:23 PM (2 years ago)

Author:

vboxsync

Message:

VMM/IEM: Implemented the PDEP and PEXT instructions. bugref:9898

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllAImpl.asm (modified) (3 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllAImpl.asm

@@ -638 +638 @@
 ;
 ; @param        1       The instruction mnemonic.
-;
-%macro IEMIMPL_VEX_BIN_OP_NOEFL 2
+; @param        2       Fallback instruction if applicable.
+; @param        3       Whether to emit fallback or not.
+;
+%macro IEMIMPL_VEX_BIN_OP_NOEFL 3
 BEGINPROC_FASTCALL iemAImpl_ %+ %1 %+ _u32, 12
         PROLOGUE_3_ARGS
@@ -647 +649 @@
 ENDPROC iemAImpl_ %+ %1 %+ _u32
 
+ %if %3
 BEGINPROC_FASTCALL iemAImpl_ %+ %1 %+ _u32_fallback, 12
         PROLOGUE_3_ARGS
- %ifdef ASM_CALL64_GCC
+  %ifdef ASM_CALL64_GCC
         mov     cl, A2_8
         %2      A1_32, cl
         mov     [A0], A1_32
- %else
+  %else
         xchg    A2, A0
         %2      A1_32, cl
         mov     [A2], A1_32
- %endif
+  %endif
         EPILOGUE_3_ARGS
 ENDPROC iemAImpl_ %+ %1 %+ _u32_fallback
+ %endif
 
  %ifdef RT_ARCH_AMD64
@@ -669 +673 @@
 ENDPROC iemAImpl_ %+ %1 %+ _u64
 
+ %if %3
 BEGINPROC_FASTCALL iemAImpl_ %+ %1 %+ _u64_fallback, 12
         PROLOGUE_3_ARGS
- %ifdef ASM_CALL64_GCC
+  %ifdef ASM_CALL64_GCC
         mov     cl, A2_8
         %2      A1, cl
         mov     [A0], A1_32
- %else
+  %else
         xchg    A2, A0
         %2      A1, cl
         mov     [A2], A1_32
- %endif
+  %endif
         mov     [A0], A1
         EPILOGUE_3_ARGS
 ENDPROC iemAImpl_ %+ %1 %+ _u64_fallback
+  %endif
  %endif ; RT_ARCH_AMD64
 %endmacro
 
-;                           instr, fallback instr
-IEMIMPL_VEX_BIN_OP_NOEFL    sarx,  sar
-IEMIMPL_VEX_BIN_OP_NOEFL    shlx,  shl
-IEMIMPL_VEX_BIN_OP_NOEFL    shrx,  shr
+;                           instr, fallback instr, emit fallback
+IEMIMPL_VEX_BIN_OP_NOEFL    sarx,  sar,            1
+IEMIMPL_VEX_BIN_OP_NOEFL    shlx,  shl,            1
+IEMIMPL_VEX_BIN_OP_NOEFL    shrx,  shr,            1
+IEMIMPL_VEX_BIN_OP_NOEFL    pdep,  nop,            0
+IEMIMPL_VEX_BIN_OP_NOEFL    pext,  nop,            0