instrs: Annotate 67h and segment override usage
Some instructions honor an address-size override or a segment override, even in the absence of a directly encoded memory operand. These annotations are not yet used, but may be used in future to optimize the size of encoded instructions.
This commit is contained in:
Alexis Engelke
52
instrs.txt
52
instrs.txt
@@ -86,10 +86,10 @@
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69 RMI Gv Ev Iz - IMUL EFL=m--uuuum
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6a I Ibs - - - PUSH D64
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6b RMI Gv Ev Ibs - IMUL EFL=m--uuuum
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6c NP - - - - INS+w SZ8 ENC_REP EFL=-t------
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6d NP - - - - INS+w ENC_REP EFL=-t------
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6e NP - - - - OUTS+w SZ8 ENC_REP EFL=-t------
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6f NP - - - - OUTS+w ENC_REP EFL=-t------
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6c NP - - - - INS+ws SZ8 ENC_REP EFL=-t------
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6d NP - - - - INS+ws ENC_REP EFL=-t------
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6e NP - - - - OUTS+was SZ8 ENC_REP EFL=-t------
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6f NP - - - - OUTS+was ENC_REP EFL=-t------
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70 D Jbs - - - JO F64 EFL=t-------
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71 D Jbs - - - JNO F64 EFL=t-------
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72 D Jbs - - - JC F64 EFL=-------t
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@@ -172,22 +172,22 @@
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9d NP - - - - POPF+w D64 EFL=mmmmmmmm
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9e NP - - - - SAHF EFL=---mmmmm
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9f NP - - - - LAHF EFL=---ttttt
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a0 FD Rb Ob - - MOV SZ8
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a1 FD Rv Ov - - MOV
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a2 TD Ob Rb - - MOV SZ8
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a3 TD Ov Rv - - MOV
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a4 NP - - - - MOVS+w SZ8 ENC_REP EFL=-t------
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a5 NP - - - - MOVS+w ENC_REP EFL=-t------
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a6 NP - - - - CMPS+w SZ8 ENC_REPCC EFL=mt-mmmmm
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a7 NP - - - - CMPS+w ENC_REPCC EFL=mt-mmmmm
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a0 FD Rb Ob - - MOV+as SZ8
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a1 FD Rv Ov - - MOV+as
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a2 TD Ob Rb - - MOV+as SZ8
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a3 TD Ov Rv - - MOV+as
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a4 NP - - - - MOVS+was SZ8 ENC_REP EFL=-t------
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a5 NP - - - - MOVS+was ENC_REP EFL=-t------
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a6 NP - - - - CMPS+was SZ8 ENC_REPCC EFL=mt-mmmmm
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a7 NP - - - - CMPS+was ENC_REPCC EFL=mt-mmmmm
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a8 IA Rb Ib - - TEST SZ8 EFL=0--mmum0
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a9 IA Rv Iz - - TEST EFL=0--mmum0
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aa NP - - - - STOS+w SZ8 ENC_REP EFL=-t------
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ab NP - - - - STOS+w ENC_REP EFL=-t------
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ac NP - - - - LODS+w SZ8 ENC_REP EFL=-t------
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ad NP - - - - LODS+w ENC_REP EFL=-t------
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ae NP - - - - SCAS+w SZ8 ENC_REPCC EFL=mt-mmmmm
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af NP - - - - SCAS+w ENC_REPCC EFL=mt-mmmmm
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aa NP - - - - STOS+wa SZ8 ENC_REP EFL=-t------
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ab NP - - - - STOS+wa ENC_REP EFL=-t------
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ac NP - - - - LODS+was SZ8 ENC_REP EFL=-t------
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ad NP - - - - LODS+was ENC_REP EFL=-t------
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ae NP - - - - SCAS+wa SZ8 ENC_REPCC EFL=mt-mmmmm
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af NP - - - - SCAS+wa ENC_REPCC EFL=mt-mmmmm
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b0+ OI Rb Ib - - MOVABS SZ8
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b8+ OI Rv Iv - - MOVABS
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c0/0 MI Eb Ib - - ROL SZ8 EFL=m------m
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@@ -261,12 +261,12 @@ d3/7 MC Ev Rb - - SAR EFL=m--mmumm
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d4 I Ib - - - AAM I64 SZ8 EFL=u--mmumu
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d5 I Ib - - - AAD I64 SZ8 EFL=u--mmumu
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d6 NP - - - - SALC I64 UNDOC
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d7 NP - - - - XLATB
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d7 NP - - - - XLATB+as
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#d8-df FPU Escape
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e0 D Jbs - - - LOOPNZ F64 EFL=----t---
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e1 D Jbs - - - LOOPZ F64 EFL=----t---
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e2 D Jbs - - - LOOP F64
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e3 D Jbs - - - JCXZ F64
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e0 D Jbs - - - LOOPNZ+a F64 EFL=----t---
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e1 D Jbs - - - LOOPZ+a F64 EFL=----t---
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e2 D Jbs - - - LOOP+a F64
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e3 D Jbs - - - JCXZ+a F64
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e4 IA Rb Ib - - IN SZ8
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e5 IA Rz Ib - - IN
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e6 IA Rb Ib - - OUT SZ8
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@@ -561,7 +561,7 @@ NP.0ff3 RM Pq Qq - - MMX_PSLLQ F=MMX
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NP.0ff4 RM Pq Qq - - MMX_PMULUDQ F=MMX
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NP.0ff5 RM Pq Qq - - MMX_PMADDWD F=MMX
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NP.0ff6 RM Pq Qq - - MMX_PSADBW F=SSE
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NP.0ff7/r RM Pq Nq - - MMX_MASKMOVQ F=SSE
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NP.0ff7/r RM Pq Nq - - MMX_MASKMOVQ+as F=SSE
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NP.0ff8 RM Pq Qq - - MMX_PSUBB F=MMX
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NP.0ff9 RM Pq Qq - - MMX_PSUBW F=MMX
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NP.0ffa RM Pq Qq - - MMX_PSUBD F=MMX
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@@ -786,7 +786,7 @@ F2.0ff0/m RM Vx Mx - - SSE_LDDQU F=SSE3
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66.0ff4 RM Vx Wx - - SSE_PMULUDQ F=SSE2
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66.0ff5 RM Vx Wx - - SSE_PMADDWD F=SSE2
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66.0ff6 RM Vx Wx - - SSE_PSADBW F=SSE2
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66.0ff7/r RM Vx Wx - - SSE_MASKMOVDQU F=SSE2
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66.0ff7/r RM Vx Wx - - SSE_MASKMOVDQU+as F=SSE2
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66.0ff8 RM Vx Wx - - SSE_PSUBB F=SSE2
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66.0ff9 RM Vx Wx - - SSE_PSUBW F=SSE2
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66.0ffa RM Vx Wx - - SSE_PSUBD F=SSE2
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@@ -1084,7 +1084,7 @@ VEX.66.0ff3 RVM Vx Hx Wx - VPSLLQ F=AVX
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VEX.66.0ff4 RVM Vx Hx Wx - VPMULUDQ F=AVX
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VEX.66.0ff5 RVM Vx Hx Wx - VPMADDWD F=AVX
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VEX.66.0ff6 RVM Vx Hx Wx - VPSADBW F=AVX
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VEX.NP.L0.0ff7 RM Vx Wx - - VMASKMOVDQU F=AVX
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VEX.NP.L0.0ff7 RM Vx Wx - - VMASKMOVDQU+as F=AVX
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VEX.66.0ff8 RVM Vx Hx Wx - VPSUBB F=AVX
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VEX.66.0ff9 RVM Vx Hx Wx - VPSUBW F=AVX
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VEX.66.0ffa RVM Vx Hx Wx - VPSUBD F=AVX
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@@ -176,9 +176,14 @@ class InstrDesc(NamedTuple):
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@classmethod
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def parse(cls, desc):
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desc = desc.split()
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if desc[5][-2:] == "+w":
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desc[5] = desc[5][:-2]
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mnem_comp = desc[5].split("+", 1)
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desc[5] = mnem_comp[0]
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if len(mnem_comp) > 1 and "w" in mnem_comp[1]:
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desc.append("INSTR_WIDTH")
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if len(mnem_comp) > 1 and "a" in mnem_comp[1]:
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desc.append("U67")
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if len(mnem_comp) > 1 and "s" in mnem_comp[1]:
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desc.append("USEG")
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operands = tuple(OpKind.parse(op) for op in desc[1:5] if op != "-")
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return cls(desc[5], desc[0], operands, frozenset(desc[6:]))
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