import collections as _collections
-import copy as _copy
import csv as _csv
import dataclasses as _dataclasses
import enum as _enum
import functools as _functools
import os as _os
-import operator as _operator
import pathlib as _pathlib
import re as _re
CROutSel as _CROutSel,
LDSTLen as _LDSTLen,
LDSTMode as _LDSTMode,
- RC as _RC,
+ RCOE as _RCOE,
CryIn as _CryIn,
Form as _Form,
SVEtype as _SVEtype,
SVMode as _SVMode,
SVPtype as _SVPtype,
SVExtra as _SVExtra,
+ RegType as _RegType,
SVExtraRegType as _SVExtraRegType,
SVExtraReg as _SVExtraReg,
)
+from openpower.decoder.selectable_int import (
+ SelectableInt as _SelectableInt,
+ selectconcat as _selectconcat,
+)
+from openpower.decoder.power_fields import (
+ Field as _Field,
+ Array as _Array,
+ Mapping as _Mapping,
+ DecodeFields as _DecodeFields,
+)
+from openpower.decoder.pseudo.pagereader import ISA as _ISA
def dataclass(cls, record, keymap=None, typemap=None):
comment: str
flags: Flags = Flags()
comment2: str = ""
- unit: _Function = _Function.NONE
+ function: _Function = _Function.NONE
intop: _MicrOp = _MicrOp.OP_ILLEGAL
in1: _In1Sel = _In1Sel.RA
in2: _In2Sel = _In2Sel.NONE
cry_in: _CryIn = _CryIn.ZERO
ldst_len: _LDSTLen = _LDSTLen.NONE
upd: _LDSTMode = _LDSTMode.NONE
- rc: _RC = _RC.NONE
+ Rc: _RCOE = _RCOE.NONE
form: _Form = _Form.NONE
conditions: str = ""
unofficial: bool = False
__KEYMAP = {
+ "unit": "function",
"internal op": "intop",
"CR in": "cr_in",
"CR out": "cr_out",
"cry in": "cry_in",
"ldst len": "ldst_len",
+ "rc": "Rc",
"CONDITIONS": "conditions",
}
return dataclass(cls, record, keymap=PPCRecord.__KEYMAP, typemap=typemap)
- @property
- def identifier(self):
- return self.comment
-
@cached_property
def names(self):
return frozenset(self.comment.split("=")[-1].split("/"))
+class PPCMultiRecord(tuple):
+ @cached_property
+ def unified(self):
+ def merge(lhs, rhs):
+ value = 0
+ mask = 0
+ lvalue = lhs.opcode.value
+ rvalue = rhs.opcode.value
+ lmask = lhs.opcode.mask
+ rmask = rhs.opcode.mask
+ bits = max(lmask.bit_length(), rmask.bit_length())
+ for bit in range(bits):
+ lvstate = ((lvalue & (1 << bit)) != 0)
+ rvstate = ((rvalue & (1 << bit)) != 0)
+ lmstate = ((lmask & (1 << bit)) != 0)
+ rmstate = ((rmask & (1 << bit)) != 0)
+ vstate = lvstate
+ mstate = True
+ if (not lmstate or not rmstate) or (lvstate != rvstate):
+ vstate = 0
+ mstate = 0
+ value |= (vstate << bit)
+ mask |= (mstate << bit)
+
+ return _dataclasses.replace(lhs, opcode=Opcode(value=value, mask=mask))
+
+ return _functools.reduce(merge, self)
+
+ def __getattr__(self, attr):
+ return getattr(self.unified, attr)
+
+
@_dataclasses.dataclass(eq=True, frozen=True)
class SVP64Record:
class ExtraMap(tuple):
def __repr__(self):
return repr({index:self[index] for index in range(0, 4)})
- identifier: str
+ name: str
ptype: _SVPtype = _SVPtype.NONE
etype: _SVEtype = _SVEtype.NONE
in1: _In1Sel = _In1Sel.NONE
cr_in: _CRInSel = _CRInSel.NONE
cr_out: _CROutSel = _CROutSel.NONE
extra: ExtraMap = ExtraMap()
- pu: bool = False
conditions: str = ""
mode: _SVMode = _SVMode.NORMAL
__KEYMAP = {
- "insn": "identifier",
+ "insn": "name",
"CONDITIONS": "conditions",
"Ptype": "ptype",
"Etype": "etype",
"CR in": "cr_in",
"CR out": "cr_out",
- "PU": "pu",
}
@classmethod
def transform(item):
(name, bitrange) = item
- return (name, tuple(bitrange.values()))
+ return (name, list(bitrange.values()))
self.__mapping = dict(map(transform, items))
def __repr__(self):
return repr(self.__mapping)
+ def __iter__(self):
+ yield from self.__mapping.items()
+
def __contains__(self, key):
return self.__mapping.__contains__(key)
def __getitem__(self, key):
- return self.__mapping.__getitem__(key)
+ return self.__mapping.get(key, None)
+
+
+class Operands:
+ @_dataclasses.dataclass(eq=True, frozen=True)
+ class Operand:
+ name: str
+
+ def disassemble(self, value, record, verbose=False):
+ raise NotImplementedError
+
+ @_dataclasses.dataclass(eq=True, frozen=True)
+ class DynamicOperand(Operand):
+ def disassemble(self, value, record, verbose=False):
+ span = record.fields[self.name]
+ value = value[span]
+ if verbose:
+ return f"{int(value):0{value.bits}b} {span}"
+ else:
+ return str(int(value))
+
+ @_dataclasses.dataclass(eq=True, frozen=True)
+ class StaticOperand(Operand):
+ value: int
+
+ def disassemble(self, value, record, verbose=False):
+ span = record.fields[self.name]
+ value = value[span]
+ if verbose:
+ return f"{int(value):0{value.bits}b} {span}"
+ else:
+ return str(int(value))
+
+ @_dataclasses.dataclass(eq=True, frozen=True)
+ class DynamicOperandIFormLI(DynamicOperand):
+ @property
+ def name(self):
+ return "LI"
+
+ @name.setter
+ def name(self, _):
+ pass
+
+ def disassemble(self, value, record, verbose=False):
+ span = record.fields["LI"]
+ value = value[span]
+ if verbose:
+ hints = "(target_addr=EXTS(LI || 0b00)))"
+ return f"{int(value):0{value.bits}b} {span} {hints}"
+ else:
+ return hex(int(_selectconcat(value,
+ _SelectableInt(value=0b00, bits=2))))
+
+ class DynamicOperandBFormBD(DynamicOperand):
+ @property
+ def name(self):
+ return "BD"
+
+ @name.setter
+ def name(self, _):
+ pass
+
+ def disassemble(self, value, record, verbose=False):
+ span = record.fields["BD"]
+ value = value[span]
+ if verbose:
+ hints = "(target_addr=EXTS(BD || 0b00))"
+ return f"{int(value):0{value.bits}b} {span} {hints}"
+ else:
+ return hex(int(_selectconcat(value,
+ _SelectableInt(value=0b00, bits=2))))
+
+ @_dataclasses.dataclass(eq=True, frozen=True)
+ class DynamicOperandGPR(DynamicOperand):
+ def disassemble(self, value, record, verbose=False):
+ result = super().disassemble(value=value,
+ record=record, verbose=verbose)
+ if not verbose:
+ result = f"r{result}"
+ return result
+
+ @_dataclasses.dataclass(eq=True, frozen=True)
+ class DynamicOperandFPR(DynamicOperand):
+ def disassemble(self, value, record, verbose=False):
+ result = super().disassemble(value=value,
+ record=record, verbose=verbose)
+ if not verbose:
+ result = f"f{result}"
+ return result
+
+ def __init__(self, insn, iterable):
+ branches = {
+ "b": {"LI": self.__class__.DynamicOperandIFormLI},
+ "ba": {"LI": self.__class__.DynamicOperandIFormLI},
+ "bl": {"LI": self.__class__.DynamicOperandIFormLI},
+ "bla": {"LI": self.__class__.DynamicOperandIFormLI},
+ "bc": {"BD": self.__class__.DynamicOperandBFormBD},
+ "bca": {"BD": self.__class__.DynamicOperandBFormBD},
+ "bcl": {"BD": self.__class__.DynamicOperandBFormBD},
+ "bcla": {"BD": self.__class__.DynamicOperandBFormBD},
+ }
+
+ operands = []
+ for operand in iterable:
+ dynamic_cls = self.__class__.DynamicOperand
+ static_cls = self.__class__.StaticOperand
+
+ if "=" in operand:
+ (name, value) = operand.split("=")
+ operand = static_cls(name=name, value=int(value))
+ else:
+ if insn in branches and operand in branches[insn]:
+ dynamic_cls = branches[insn][operand]
+
+ if operand in _RegType.__members__:
+ regtype = _RegType[operand]
+ if regtype is _RegType.GPR:
+ dynamic_cls = self.__class__.DynamicOperandGPR
+ elif regtype is _RegType.FPR:
+ dynamic_cls = self.__class__.DynamicOperandFPR
+
+ operand = dynamic_cls(name=operand)
+
+ operands.append(operand)
+
+ self.__operands = operands
+
+ return super().__init__()
+
+ def __repr__(self):
+ return self.__operands.__repr__()
+
+ def __iter__(self):
+ yield from self.__operands
+
+ def __contains__(self, key):
+ return self.__getitem__(key) is not None
+
+ def __getitem__(self, key):
+ for operand in self.__operands:
+ if operand.name == key:
+ return operand
- def get(self, key, default):
- return self.__mapping.get(key, default)
+ return None
+
+ @property
+ def dynamic(self):
+ for operand in self:
+ if isinstance(operand, self.__class__.DynamicOperand):
+ yield operand
+
+ @property
+ def static(self):
+ for operand in self:
+ if isinstance(operand, self.__class__.StaticOperand):
+ yield operand
@_functools.total_ordering
@_dataclasses.dataclass(eq=True, frozen=True)
-class Instruction:
+class Record:
name: str
- rc: bool
section: Section
ppc: PPCRecord
fields: Fields
+ operands: Operands
svp64: SVP64Record = None
__EXTRA = (
)
def __lt__(self, other):
- if not isinstance(other, Instruction):
+ if not isinstance(other, Record):
return NotImplemented
return (self.opcode < other.opcode)
- def __repr__(self):
- return f"{self.__class__.__name__}(name={self.name!r}, opcode={self.opcode})"
-
@cached_property
def opcode(self):
fields = []
else:
fields += [(self.ppc.opcode.value, self.section.bitsel)]
- # Some instructions are special regarding Rc handling.
- # They are marked with Rc.ONE, but don't have Rc field.
- # At least addic., andi., andis. belong to this list.
- if self.rc and "Rc" in self.fields:
- fields += [(1, self.fields["Rc"])]
+ for operand in self.operands.static:
+ fields += [(operand.value, self.fields[operand.name])]
return FieldsOpcode(fields)
+ @property
+ def function(self):
+ return self.ppc.function
+
@property
def in1(self):
return self.ppc.in1
}
for index in range(0, 4):
for entry in self.svp64.extra[index]:
- extra_map[entry.regtype][entry.reg] = Instruction.__EXTRA[index]
+ extra_map[entry.regtype][entry.reg] = Record.__EXTRA[index]
for regtype in (_SVExtraRegType.SRC, _SVExtraRegType.DST):
extra = extra_map[regtype].get(reg, _SVExtra.NONE)
return self.svp64.etype
-class Database:
- def __init__(self, root):
- root = _pathlib.Path(root)
+class Instruction(_Mapping):
+ @classmethod
+ def integer(cls, value=0, bits=None, byteorder="little"):
+ if isinstance(value, (int, bytes)) and not isinstance(bits, int):
+ raise ValueError(bits)
+
+ if isinstance(value, bytes):
+ if ((len(value) * 8) != bits):
+ raise ValueError(f"bit length mismatch")
+ value = int.from_bytes(value, byteorder=byteorder)
- def parse(stream, factory):
- lines = filter(lambda line: not line.strip().startswith("#"), stream)
- entries = _csv.DictReader(lines)
- entries = filter(lambda entry: "TODO" not in frozenset(entry.values()), entries)
- return tuple(map(factory, entries))
-
- def database_ppc(root):
- db = _collections.defaultdict(set)
- path = (root / "insndb.csv")
- with open(path, "r", encoding="UTF-8") as stream:
- for section in parse(stream, Section.CSV):
- path = (root / section.path)
- opcode_cls = {
- section.Mode.INTEGER: IntegerOpcode,
- section.Mode.PATTERN: PatternOpcode,
- }[section.mode]
- factory = _functools.partial(PPCRecord.CSV, opcode_cls=opcode_cls)
- with open(path, "r", encoding="UTF-8") as stream:
- db[section].update(parse(stream, factory))
- for (section, records) in db.items():
- db[section] = {record.identifier:record for record in records}
- return db
-
- def database_svp64(root):
- db = set()
- pattern = _re.compile(r"^(?:LDST)?RM-(1P|2P)-.*?\.csv$")
- for (prefix, _, names) in _os.walk(root):
- prefix = _pathlib.Path(prefix)
- for name in filter(lambda name: pattern.match(name), names):
- path = (prefix / _pathlib.Path(name))
- with open(path, "r", encoding="UTF-8") as stream:
- db.update(parse(stream, SVP64Record.CSV))
- db = {record.identifier:record for record in db}
- return db
-
- def database_forms(root):
- # This is hack. The whole code there should be moved here.
- # The fields.text parser should take care of the validation.
- from openpower.decoder.power_fields import DecodeFields as _DecodeFields
- db = {}
- df = _DecodeFields()
- df.create_specs()
- for (form, fields) in df.instrs.items():
- if form in {"DQE", "TX"}:
- continue
- if form == "all":
- form = "NONE"
- db[_Form[form]] = Fields(fields)
- return db
-
- def database(ppcdb, svp64db, formsdb):
- items = set()
- for section in ppcdb:
- for (identifier, ppc) in ppcdb[section].items():
- fields = formsdb[ppc.form]
- svp64 = svp64db.get(identifier)
- if ppc.rc is _RC.ONE:
- variants = {name:True for name in ppc.names}
- elif ppc.rc is _RC.RC:
- variants = {name:False for name in ppc.names}
- variants.update({f"{name}.":True for name in ppc.names})
+ if isinstance(value, int):
+ value = _SelectableInt(value=value, bits=bits)
+ elif isinstance(value, Instruction):
+ value = value.storage
+
+ if not isinstance(value, _SelectableInt):
+ raise ValueError(value)
+ if bits is None:
+ bits = len(cls)
+ if len(value) != bits:
+ raise ValueError(value)
+
+ value = _SelectableInt(value=value, bits=bits)
+
+ return cls(storage=value)
+
+ def __hash__(self):
+ return hash(int(self))
+
+ def disassemble(self, db, byteorder="little", verbose=False):
+ raise NotImplementedError
+
+
+class WordInstruction(Instruction):
+ _: _Field = range(0, 32)
+ po: _Field = range(0, 6)
+
+ @classmethod
+ def integer(cls, value, byteorder="little"):
+ return super().integer(bits=32, value=value, byteorder=byteorder)
+
+ def spec(self, record):
+ dynamic_operands = []
+ for operand in record.operands.dynamic:
+ dynamic_operands.append(operand.name)
+ static_operands = []
+ for operand in record.operands.static:
+ static_operands.append(f"{operand.name}={operand.value}")
+ operands = ""
+ if dynamic_operands:
+ operands += f" {','.join(dynamic_operands)}"
+ if static_operands:
+ operands += f" ({' '.join(static_operands)})"
+ return f"{record.name}{operands}"
+
+ def opcode(self, record):
+ return f"0x{record.opcode.value:08x}"
+
+ def mask(self, record):
+ return f"0x{record.opcode.mask:08x}"
+
+ def disassemble(self, db, byteorder="little", verbose=False):
+ integer = int(self)
+ blob = integer.to_bytes(length=4, byteorder=byteorder)
+ blob = " ".join(map(lambda byte: f"{byte:02x}", blob))
+
+ record = db[self]
+ if record is None:
+ yield f"{blob} .long 0x{integer:08x}"
+ return
+
+ operands = []
+ for operand in record.operands.dynamic:
+ operand = operand.disassemble(value=self,
+ record=record, verbose=False)
+ operands.append(operand)
+ if operands:
+ operands = ",".join(operands)
+ operands = f" {operands}"
+ else:
+ operands = ""
+
+ yield f"{blob} {record.name}{operands}"
+
+ if verbose:
+ lindent = (" " * 4)
+ rindent = (len(blob) - len(lindent))
+ spec = self.spec(record=record)
+ opcode = self.opcode(record=record)
+ mask = self.mask(record=record)
+ yield f"{lindent}{'spec':{rindent}}{spec}"
+ yield f"{lindent}{'opcode':{rindent}}{opcode}"
+ yield f"{lindent}{'mask':{rindent}}{mask}"
+ for operand in record.operands:
+ name = operand.name
+ value = operand.disassemble(value=self,
+ record=record, verbose=True)
+ yield f"{lindent}{name:{rindent}}{value}"
+
+
+class PrefixedInstruction(Instruction):
+ class Prefix(WordInstruction.remap(range(0, 32))):
+ pass
+
+ class Suffix(WordInstruction.remap(range(32, 64))):
+ pass
+
+ _: _Field = range(64)
+ prefix: Prefix
+ suffix: Suffix
+ po: Suffix.po
+
+ @classmethod
+ def integer(cls, value, byteorder="little"):
+ return super().integer(bits=64, value=value, byteorder=byteorder)
+
+ @classmethod
+ def pair(cls, prefix=0, suffix=0, byteorder="little"):
+ def transform(value):
+ return WordInstruction.integer(value=value,
+ byteorder=byteorder)[0:32]
+
+ (prefix, suffix) = map(transform, (prefix, suffix))
+ value = _selectconcat(prefix, suffix)
+
+ return super().integer(value=value)
+
+
+class Mode(_Mapping):
+ _: _Field = range(0, 5)
+ sel: _Field = range(0, 2)
+
+
+class NormalMode(Mode):
+ class simple(Mode):
+ """simple mode"""
+ dz: Mode[3]
+ sz: Mode[4]
+
+ class smr(Mode):
+ """scalar reduce mode (mapreduce), SUBVL=1"""
+ RG: Mode[4]
+
+ class pmr(Mode):
+ """parallel reduce mode (mapreduce), SUBVL=1"""
+ pass
+
+ class svmr(Mode):
+ """subvector reduce mode, SUBVL>1"""
+ SVM: Mode[3]
+
+ class pu(Mode):
+ """Pack/Unpack mode, SUBVL>1"""
+ SVM: Mode[3]
+
+ class ffrc1(Mode):
+ """Rc=1: ffirst CR sel"""
+ inv: Mode[2]
+ CRbit: Mode[3, 4]
+
+ class ffrc0(Mode):
+ """Rc=0: ffirst z/nonz"""
+ inv: Mode[2]
+ VLi: Mode[3]
+ RC1: Mode[4]
+
+ class sat(Mode):
+ """sat mode: N=0/1 u/s, SUBVL=1"""
+ N: Mode[2]
+ dz: Mode[3]
+ sz: Mode[4]
+
+ class satx(Mode):
+ """sat mode: N=0/1 u/s, SUBVL>1"""
+ N: Mode[2]
+ zz: Mode[3]
+ dz: Mode[3]
+ sz: Mode[3]
+
+ class satpu(Mode):
+ """Pack/Unpack sat mode: N=0/1 u/s, SUBVL>1"""
+ N: Mode[2]
+ zz: Mode[3]
+ dz: Mode[3]
+ sz: Mode[3]
+
+ class prrc1(Mode):
+ """Rc=1: pred-result CR sel"""
+ inv: Mode[2]
+ CRbit: Mode[3, 4]
+
+ class prrc0(Mode):
+ """Rc=0: pred-result z/nonz"""
+ inv: Mode[2]
+ zz: Mode[3]
+ RC1: Mode[4]
+ dz: Mode[3]
+ sz: Mode[3]
+
+ simple: simple
+ smr: smr
+ pmr: pmr
+ svmr: svmr
+ pu: pu
+ ffrc1: ffrc1
+ ffrc0: ffrc0
+ sat: sat
+ satx: satx
+ satpu: satpu
+ prrc1: prrc1
+ prrc0: prrc0
+
+
+class LDSTImmMode(Mode):
+ class simple(Mode):
+ """simple mode"""
+ zz: Mode[3]
+ els: Mode[4]
+ dz: Mode[3]
+ sz: Mode[3]
+
+ class spu(Mode):
+ """Structured Pack/Unpack"""
+ zz: Mode[3]
+ els: Mode[4]
+ dz: Mode[3]
+ sz: Mode[3]
+
+ class ffrc1(Mode):
+ """Rc=1: ffirst CR sel"""
+ inv: Mode[2]
+ CRbit: Mode[3, 4]
+
+ class ffrc0(Mode):
+ """Rc=0: ffirst z/nonz"""
+ inv: Mode[2]
+ els: Mode[3]
+ RC1: Mode[4]
+
+ class sat(Mode):
+ """sat mode: N=0/1 u/s"""
+ N: Mode[2]
+ zz: Mode[3]
+ els: Mode[4]
+ dz: Mode[3]
+ sz: Mode[3]
+
+ class prrc1(Mode):
+ """Rc=1: pred-result CR sel"""
+ inv: Mode[2]
+ CRbit: Mode[3, 4]
+
+ class prrc0(Mode):
+ """Rc=0: pred-result z/nonz"""
+ inv: Mode[2]
+ els: Mode[3]
+ RC1: Mode[4]
+
+ simple: simple
+ spu: spu
+ ffrc1: ffrc1
+ ffrc0: ffrc0
+ sat: sat
+ prrc1: prrc1
+ prrc0: prrc0
+
+
+class LDSTIdxMode(Mode):
+ class simple(Mode):
+ """simple mode"""
+ SEA: Mode[2]
+ sz: Mode[3]
+ dz: Mode[3]
+
+ class stride(Mode):
+ """strided (scalar only source)"""
+ SEA: Mode[2]
+ dz: Mode[3]
+ sz: Mode[4]
+
+ class sat(Mode):
+ """sat mode: N=0/1 u/s"""
+ N: Mode[2]
+ dz: Mode[3]
+ sz: Mode[4]
+
+ class prrc1(Mode):
+ """Rc=1: pred-result CR sel"""
+ inv: Mode[2]
+ CRbit: Mode[3, 4]
+
+ class prrc0(Mode):
+ """Rc=0: pred-result z/nonz"""
+ inv: Mode[2]
+ zz: Mode[3]
+ RC1: Mode[4]
+ dz: Mode[3]
+ sz: Mode[3]
+
+ simple: simple
+ stride: stride
+ sat: sat
+ prrc1: prrc1
+ prrc0: prrc0
+
+
+class RM(_Mapping):
+ class Mode(Mode):
+ normal: NormalMode
+ ldst_imm: LDSTImmMode
+ ldst_idx: LDSTIdxMode
+
+ _: _Field = range(24)
+ mmode: _Field = (0,)
+ mask: _Field = range(1, 4)
+ elwidth: _Field = range(4, 6)
+ ewsrc: _Field = range(6, 8)
+ subvl: _Field = range(8, 10)
+ extra: _Field = range(10, 19)
+ mode: Mode.remap(range(19, 24))
+ extra2: _Array[4] = (
+ range(10, 12),
+ range(12, 14),
+ range(14, 16),
+ range(16, 18),
+ )
+ smask: _Field = range(16, 19)
+ extra3: _Array[3] = (
+ range(10, 13),
+ range(13, 16),
+ range(16, 19),
+ )
+
+
+class SVP64Instruction(PrefixedInstruction):
+ """SVP64 instruction: https://libre-soc.org/openpower/sv/svp64/"""
+ class Prefix(PrefixedInstruction.Prefix):
+ id: _Field = (7, 9)
+ rm: RM.remap((6, 8) + tuple(range(10, 32)))
+
+ prefix: Prefix
+
+ def disassemble(self, db, byteorder="little", verbose=False):
+ integer_prefix = int(self.prefix)
+ blob_prefix = integer_prefix.to_bytes(length=4, byteorder=byteorder)
+ blob_prefix = " ".join(map(lambda byte: f"{byte:02x}", blob_prefix))
+
+ integer_suffix = int(self.suffix)
+ blob_suffix = integer_suffix.to_bytes(length=4, byteorder=byteorder)
+ blob_suffix = " ".join(map(lambda byte: f"{byte:02x}", blob_suffix))
+
+ record = db[self.suffix]
+ if record is None or record.svp64 is None:
+ yield f"{blob_prefix} .long 0x{int(self.prefix):08x}"
+ yield f"{blob_suffix} .long 0x{int(self.suffix):08x}"
+ return
+
+ Rc = False
+ if record.operands["Rc"] is not None:
+ Rc = bool(self[record.fields["Rc"]])
+
+ subvl = self.prefix.rm.subvl
+ mode = self.prefix.rm.mode
+ sel = mode.sel
+
+ if record.svp64.mode is _SVMode.NORMAL:
+ mode = mode.normal
+ if sel == 0b00:
+ if mode[2] == 0b0:
+ mode = mode.simple
+ else:
+ if subvl == 0b00:
+ if mode[3] == 0b0:
+ mode = mode.smr
+ else:
+ mode = mode.pmr
else:
- variants = {name:False for name in ppc.names}
- for (name, rc) in variants.items():
- items.add(Instruction(name=name, rc=rc,
- section=section, ppc=ppc, fields=fields, svp64=svp64))
+ if mode[4] == 0b0:
+ mode = mode.svmr
+ else:
+ mode = mode.pu
+ elif sel == 0b01:
+ if Rc:
+ mode = mode.ffrc1
+ else:
+ mode = mode.ffrc0
+ elif sel == 0b10:
+ if subvl == 0b00:
+ mode = mode.sat
+ else:
+ if mode[4]:
+ mode = mode.satx
+ else:
+ mode = mode.satpu
+ elif sel == 0b11:
+ if Rc:
+ mode = mode.prrc1
+ else:
+ mode = mode.prrc0
+ elif record.svp64.mode is _SVMode.LDST_IMM:
+ mode = mode.ldst_imm
+ if sel == 0b00:
+ if mode[2] == 0b0:
+ mode = mode.simple
+ else:
+ mode = mode.spu
+ elif sel == 0b01:
+ if Rc:
+ mode = mode.ffrc1
+ else:
+ mode = mode.ffrc0
+ elif sel == 0b10:
+ mode = mode.sat
+ elif sel == 0b11:
+ if Rc:
+ mode = mode.prrc1
+ else:
+ mode = mode.prrc0
+ elif record.svp64.mode is _SVMode.LDST_IMM:
+ mode = mode.ldst_idx
+ if mode.sel == 0b00:
+ mode = mode.simple
+ elif mode.sel == 0b01:
+ mode = mode.stride
+ elif mode.sel == 0b10:
+ mode = mode.sat
+ elif mode.sel == 0b11:
+ if Rc:
+ mode = mode.prrc1
+ else:
+ mode = mode.prrc0
- items = tuple(sorted(items, key=_operator.attrgetter("opcode")))
- opcodes = {item.opcode:item for item in items}
- names = {item.name:item for item in sorted(items, key=_operator.attrgetter("name"))}
+ if type(mode) is Mode:
+ raise NotImplementedError
- return (items, opcodes, names)
+ yield f"{blob_prefix} sv.{record.name}"
+ yield f"{blob_suffix}"
- ppcdb = database_ppc(root)
- svp64db = database_svp64(root)
- formsdb = database_forms(root)
- (items, opcodes, names) = database(ppcdb, svp64db, formsdb)
- self.__items = items
- self.__opcodes = opcodes
- self.__names = names
+def parse(stream, factory):
+ lines = filter(lambda line: not line.strip().startswith("#"), stream)
+ entries = _csv.DictReader(lines)
+ entries = filter(lambda entry: "TODO" not in frozenset(entry.values()), entries)
+ return tuple(map(factory, entries))
+
+
+class MarkdownDatabase:
+ def __init__(self):
+ db = {}
+ for (name, desc) in _ISA():
+ operands = []
+ if desc.regs:
+ (dynamic, *static) = desc.regs
+ operands.extend(dynamic)
+ operands.extend(static)
+ db[name] = Operands(insn=name, iterable=operands)
+ self.__db = db
+ return super().__init__()
+
+ def __iter__(self):
+ yield from self.__db.items()
+
+ def __getitem__(self, key):
+ return self.__db.__getitem__(key)
+
+
+class FieldsDatabase:
+ def __init__(self):
+ db = {}
+ df = _DecodeFields()
+ df.create_specs()
+ for (form, fields) in df.instrs.items():
+ if form in {"DQE", "TX"}:
+ continue
+ if form == "all":
+ form = "NONE"
+ db[_Form[form]] = Fields(fields)
+
+ self.__db = db
+
+ return super().__init__()
+
+ def __getitem__(self, key):
+ return self.__db.__getitem__(key)
+
+
+class PPCDatabase:
+ def __init__(self, root, mdwndb, fieldsdb):
+ # The code below groups the instructions by section:identifier.
+ # We use the comment as an identifier, there's nothing better.
+ # The point is to capture different opcodes for the same instruction.
+ dd = _collections.defaultdict
+ records = dd(lambda: dd(set))
+ path = (root / "insndb.csv")
+ with open(path, "r", encoding="UTF-8") as stream:
+ for section in parse(stream, Section.CSV):
+ path = (root / section.path)
+ opcode_cls = {
+ section.Mode.INTEGER: IntegerOpcode,
+ section.Mode.PATTERN: PatternOpcode,
+ }[section.mode]
+ factory = _functools.partial(PPCRecord.CSV, opcode_cls=opcode_cls)
+ with open(path, "r", encoding="UTF-8") as stream:
+ for insn in parse(stream, factory):
+ records[section][insn.comment].add(insn)
+
+ db = dd(set)
+ for (section, group) in records.items():
+ for records in group.values():
+ db[section].add(PPCMultiRecord(records))
+
+ self.__db = db
+ self.__mdwndb = mdwndb
+ self.__fieldsdb = fieldsdb
+
+ return super().__init__()
+
+ def __getitem__(self, key):
+ def exact_match(key, record):
+ for name in record.names:
+ if name == key:
+ return True
+
+ return False
+
+ def Rc_match(key, record):
+ if not key.endswith("."):
+ return False
+
+ if not record.Rc is _RCOE.RC:
+ return False
+
+ return exact_match(key[:-1], record)
+
+ def LK_match(key, record):
+ if not key.endswith("l"):
+ return False
+
+ if "lk" not in record.flags:
+ return False
+
+ return exact_match(key[:-1], record)
+
+ def AA_match(key, record):
+ if not key.endswith("a"):
+ return False
+
+ if record.intop not in {_MicrOp.OP_B, _MicrOp.OP_BC}:
+ return False
+
+ if self.__mdwndb[key]["AA"] is None:
+ return False
+
+ return (exact_match(key[:-1], record) or
+ LK_match(key[:-1], record))
+
+ for (section, records) in self.__db.items():
+ for record in records:
+ if (exact_match(key, record) or
+ Rc_match(key, record) or
+ LK_match(key, record) or
+ AA_match(key, record)):
+ return (section, record)
+
+ return (None, None)
+
+
+class SVP64Database:
+ def __init__(self, root, ppcdb):
+ db = set()
+ pattern = _re.compile(r"^(?:LDST)?RM-(1P|2P)-.*?\.csv$")
+ for (prefix, _, names) in _os.walk(root):
+ prefix = _pathlib.Path(prefix)
+ for name in filter(lambda name: pattern.match(name), names):
+ path = (prefix / _pathlib.Path(name))
+ with open(path, "r", encoding="UTF-8") as stream:
+ db.update(parse(stream, SVP64Record.CSV))
+
+ self.__db = {record.name:record for record in db}
+ self.__ppcdb = ppcdb
+
+ return super().__init__()
+
+ def __getitem__(self, key):
+ (_, record) = self.__ppcdb[key]
+ if record is None:
+ return None
+
+ for name in record.names:
+ record = self.__db.get(name, None)
+ if record is not None:
+ return record
+
+ return None
+
+
+class Database:
+ def __init__(self, root):
+ root = _pathlib.Path(root)
+
+ mdwndb = MarkdownDatabase()
+ fieldsdb = FieldsDatabase()
+ ppcdb = PPCDatabase(root=root, mdwndb=mdwndb, fieldsdb=fieldsdb)
+ svp64db = SVP64Database(root=root, ppcdb=ppcdb)
+
+ db = set()
+ for (name, operands) in mdwndb:
+ (section, ppc) = ppcdb[name]
+ if ppc is None:
+ continue
+ svp64 = svp64db[name]
+ fields = fieldsdb[ppc.form]
+ record = Record(name=name,
+ section=section, ppc=ppc, svp64=svp64,
+ operands=operands, fields=fields)
+ db.add(record)
+
+ self.__db = tuple(sorted(db))
return super().__init__()
def __repr__(self):
- return repr(self.__items)
+ return repr(self.__db)
def __iter__(self):
- yield from self.__items
+ yield from self.__db
+ @_functools.lru_cache(maxsize=None)
def __contains__(self, key):
- if isinstance(key, int):
- return self.__opcodes.__contains__(key)
- elif isinstance(key, str):
- return self.__names.__contains__(key)
- else:
- raise KeyError(key)
+ return self.__getitem__(key) is not None
+ @_functools.lru_cache(maxsize=None)
def __getitem__(self, key):
- if isinstance(key, int):
- return self.__opcodes.__getitem__(key)
+ if isinstance(key, (int, Instruction)):
+ key = int(key)
+ for record in self:
+ opcode = record.opcode
+ if ((opcode.value & opcode.mask) ==
+ (key & opcode.mask)):
+ return record
+ return None
+ elif isinstance(key, Opcode):
+ for record in self:
+ if record.opcode == key:
+ return record
elif isinstance(key, str):
- return self.__names.__getitem__(key)
- else:
- raise KeyError(key)
+ for record in self:
+ if record.name == key:
+ return record
+ return None
projects / openpower-isa.git / blobdiff