def assy_COP(self):
return ([
assy.Arg_verbatim("%d" % self['cop']),
assy.Arg_verbatim("%d" % self['opc1']),
self.assy_Rt(),
assy.Arg_verbatim("CR%d" % self['crn']),
assy.Arg_verbatim("CR%d" % self['crm']),
assy.Arg_verbatim("{%d}" % self['opc2']),
])
def assy_Pzy(self):
d = self.lang.m[self.hi]
self.hi += 1
return [
assy.Arg_dst(self.lang.m, d),
assy.Arg_verbatim("Y"),
]
def assy_Indy(self):
d = self.lang.m[self.hi]
self.hi += 1
return [
assy.Arg_dst(self.lang.m, d, pfx="(", sfx=")"),
assy.Arg_verbatim("Y"),
]
def assy_Absy(self):
d = self.lang.m.lu16(self.hi)
self.hi += 2
return [
assy.Arg_dst(self.lang.m, d),
assy.Arg_verbatim("Y"),
]
def flow_post_arg(asp, ins):
z = post_arg.get(ins.dstadr)
if z is None:
return
ins.flow_out.pop(-1)
if len(z) <= 1:
a = data.Pstruct(asp, ins.hi, ">h", "%d", ".INFIX").hi
ins += code.Jump(to=a)
return
l = []
for i in z[1:]:
if i[1:] == "A6rel":
r = asp.bs16(ins.hi)
ins.hi += 2
if r < 0:
l.append("(A6-0x%x)" % -r)
else:
l.append("(A6+0x%x)" % r)
elif i[1:] == "abs":
r = asp.bu16(ins.hi)
if r & 0x8000:
r |= 0xffff0000
ins.hi += 2
l.append("0x%08x" % r)
elif i == "drel":
r = ins.hi + asp.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
y = data_double(asp, r)
l.append("%g" % y.data[0])
elif i == "brel":
r = ins.hi + asp.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
y = data_bcd(asp, r)
l.append("%x" % y.data[0])
elif i == "lrel":
r = ins.hi + asp.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
if not asp.occupied(r):
data.Pstruct(asp, r, ">L", "%d", ".LONG")
l.append("%d" % asp.bu32(r))
elif i == "frel":
r = ins.hi + asp.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
y = data_float(asp, r)
l.append("%g" % y.val)
elif i == "bcd":
r = asp.bu16(ins.hi)
# y = data.Pstruct(asp, ins.hi, ">H", "%x", ".BCD")
l.append("%04x" % r)
ins.hi += 2
else:
l.append(i)
ins.oper.append(assy.Arg_verbatim("(" + ",".join(l) + ")"))
ins += code.Flow()
def flow_post_arg(pj, ins):
z = post_arg.get(ins.dstadr)
if z == None:
return
ins.flow_out.pop(-1)
if len(z) <= 1:
a = data.Pstruct(pj, ins.hi, ">h", "%d", ".INFIX").hi
ins.add_flow(pj, ">", True, a)
return
l = []
for i in z[1:]:
if i[1:] == "A6rel":
r = pj.m.bs16(ins.hi)
ins.hi += 2
if r < 0:
l.append("(A6-0x%x)" % -r)
else:
l.append("(A6+0x%x)" % r)
elif i[1:] == "abs":
r = pj.m.bu16(ins.hi)
if r & 0x8000:
r |= 0xffff0000
ins.hi += 2
l.append("0x%08x" % r)
elif i == "drel":
r = ins.hi + pj.m.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
y = data_double(pj, r)
l.append("%g" % y.data[0])
elif i == "brel":
r = ins.hi + pj.m.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
y = data_bcd(pj, r);
l.append("%x" % y.data[0])
elif i == "lrel":
r = ins.hi + pj.m.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
y = data.Pstruct(pj, r, ">L", "%d", ".LONG")
l.append("%d" % y.data[0])
elif i == "frel":
r = ins.hi + pj.m.bs16(ins.hi)
ins.hi += 2
ins.lcmt += " @0x%x\n" % r
y = data_float(pj, r)
l.append("%g" % y.val)
elif i == "bcd":
r = pj.m.bu16(ins.hi)
y = data.Pstruct(pj, ins.hi, ">H", "%x", ".BCD")
l.append("%04x" % r)
ins.hi += 2
else:
l.append(i)
ins.oper.append(assy.Arg_verbatim(pj, "(" + ",".join(l) + ")"))
ins.add_flow(pj, True, True, ins.hi)
def assy_cpsr(self):
t = "CPSR_"
if self['msk'] & 8:
t += "f"
if self['msk'] & 4:
t += "s"
if self['msk'] & 2:
t += "x"
if self['msk'] & 1:
t += "c"
return assy.Arg_verbatim(t)
def assy_dst(self, cde=True):
a = self['adr']
if a & 0x200:
a -= 0x400
if self['c']:
a += self.lo
dd = (a + (1 << 16)) & 0x7fff
if not self['d']:
if cde:
self.dstadr = dd
return assy.Arg_dst(self.lang.m, dd)
try:
d = self.lang.m[dd]
y = data.Data(self.lang.m, dd, dd + 1)
y.rendered = ".REF\t0x%04x" % d
if cde:
self.dstadr = d
return [assy.Arg_dst(self.lang.m, d), assy.Arg_verbatim("[Via 0x%04x]" % dd)]
except mem.MemError:
pass
if cde:
self.dstadr = dd
return [assy.Arg_dst(self.lang.m, dd), assy.Arg_verbatim("I")]
def fc_arg(asp, ins, arg):
ins.flow_out.pop(-1)
for c in arg:
b = asp[ins.hi]
ins.hi += 1
if c == "T":
try:
y = wgstring(asp, b)
ins.oper.append(assy.Arg_verbatim(y.txt))
except mem.MemError:
ins.oper.append(assy.Arg_verbatim("T@0x%x" % b))
elif c == "F":
ins.oper.append(assy.Arg_verbatim("FP@0x%x" % b))
try:
x = asp[b]
y = data.Const(asp, b, b + 4)
y.typ = ".FP"
except mem.MemError:
pass
elif c == "P":
ins.oper.append(assy.Arg_verbatim("P@0x%x" % b))
else:
assert False, "BAD fc_arg spec: " + c
ins += code.Flow()
def assy_chn(self):
''' ... '''
chain = {
0x00: "M.MAR",
0x01: "M.DREG_FULL",
0x02: "M.DREG_VAL_PAR",
0x03: "TV.WDR",
0x04: "V.UIR",
0x05: "T.UIR",
0x06: "F.MAR",
0x07: "F.MDREG",
0x08: "F.UIR",
0x09: "S.TYPVAL",
0x0a: "S.UIR",
0x0b: "S.DECODER",
0x0c: "S.MISC",
0x0d: "I.DUMMY",
}.get(self['chn'], "%02x" % self['chn'])
return assy.Arg_verbatim("{" + chain + ":%02x}" % self['fsm'])
def assy_fsm(self):
''' ... '''
return assy.Arg_verbatim("{%02x}" % self['fsm'])
def assy_vec(self):
''' ... '''
return assy.Arg_verbatim("[0x%x]" % self['vec'])
def assy_Rs(self):
typ = self['typ']
rs = self['rs']
return assy.Arg_verbatim("%s,%s" %
(["lsl", "lsr", "asr", "ror"][typ], REG[rs]))
def assy_w(self):
if (self['w']):
return assy.Arg_verbatim("!")
def assy_vrn(self):
return assy.Arg_verbatim("[%s]" % REG[self['rn']])
def assy_imm5(self):
return assy.Arg_verbatim("#0x%x" % self['imm5'])