Changeset 106627 in vbox for trunk/src/VBox/Disassembler

Timestamp:

Oct 23, 2024 5:03:43 PM (6 months ago)

Author:

vboxsync

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

165469

Message:

Disassembler: Decode irg, gmi and subp instructions, bugref:10394

Location:

trunk/src/VBox/Disassembler

Files:

• DisasmTables-armv8-a64.cpp (modified) (1 diff)
• testcase/tstDisasmArmv8-1-asm.S (modified) (1 diff)

trunk/src/VBox/Disassembler/DisasmTables-armv8-a64.cpp

@@ -577 +577 @@
     DIS_ARMV8_INSN_DECODE(kDisParmParseGprZr32,        5,  5, 1 /*idxParam*/),
     DIS_ARMV8_INSN_DECODE(kDisParmParseGprZr64,       16,  5, 2 /*idxParam*/),
+DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_DECODER_ALTERNATIVE(Reg2SrcSubp)
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprZr64,        0,  5, 0 /*idxParam*/),
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprSp,          5,  5, 1 /*idxParam*/),
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprSp,         16,  5, 2 /*idxParam*/),
+DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_DECODER_ALTERNATIVE(Reg2SrcIrg)
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprSp,          0,  5, 0 /*idxParam*/),
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprSp,          5,  5, 1 /*idxParam*/),
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprZr64,       16,  5, 2 /*idxParam*/),
+DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_DECODER_ALTERNATIVE(Reg2SrcGmi)
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprZr,          0,  5, 0 /*idxParam*/),
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprSp,          5,  5, 1 /*idxParam*/),
+    DIS_ARMV8_INSN_DECODE(kDisParmParseGprZr,         16,  5, 2 /*idxParam*/),
 DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(Reg2Src64Bit)
-    INVALID_OPCODE,                                                                             /** @todo SUBP (FEAT_MTE). */
+    DIS_ARMV8_OP_ALT_DECODE(0x9ac00000, "subp",            OP_ARMV8_A64_SUBP,      DISOPTYPE_HARMLESS, Reg2SrcSubp),
     INVALID_OPCODE,
     DIS_ARMV8_OP(           0x9ac00800, "udiv",            OP_ARMV8_A64_UDIV,      DISOPTYPE_HARMLESS),
     DIS_ARMV8_OP(           0x9ac00c00, "sdiv",            OP_ARMV8_A64_SDIV,      DISOPTYPE_HARMLESS),
-    INVALID_OPCODE,                                                                             /** @todo IRG (FEAT_MTE). */
-    INVALID_OPCODE,                                                                             /** @todo GMI (FEAT_MTE). */
+    DIS_ARMV8_OP_ALT_DECODE(0x9ac01000, "irg",             OP_ARMV8_A64_IRG,       DISOPTYPE_HARMLESS, Reg2SrcIrg),
+    DIS_ARMV8_OP_ALT_DECODE(0x9ac01400, "gmi",             OP_ARMV8_A64_GMI,       DISOPTYPE_HARMLESS, Reg2SrcGmi),
     INVALID_OPCODE,
     INVALID_OPCODE,

trunk/src/VBox/Disassembler/testcase/tstDisasmArmv8-1-asm.S

@@ -1272 +1272 @@
         ;subps x0, sp, sp - Requires FEAT_MTE
 
+        ;subp  x0, x1, x3 - Requires FEAT_MTE
+        ;subp  x0, sp, sp - Requires FEAT_MTE
+
         udiv w0, w1, wzr
         udiv x0, x1, xzr