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const.py
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269 lines (234 loc) · 5.6 KB
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#!/usr/local/bin/python
#
from __future__ import print_function
from struct import unpack, pack
import tree
class byte(tree.tree):
def __init__(self, p, adr, len = 1, fmt="0x%02x"):
tree.tree.__init__(self, adr, adr + len, "const")
p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
self.fmt = fmt
def rfunc(self, p, t):
s = ".BYTE\t"
d = ""
for i in range(t.start, t.end):
x = p.m.rd(i)
s += d
s += self.fmt % x
d = ", "
return (s,)
class w16(tree.tree):
def __init__(self, p, adr, len = 1, fmt="0x%04x"):
tree.tree.__init__(self, adr, adr + len * 2, "const")
p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
self.fmt = fmt
def rfunc(self, p, t):
s = ".WORD\t"
d = ""
for i in range(t.start, t.end, 2):
x = p.m.w16(i)
s += d
s += self.fmt % x
d = ", "
return (s,)
class w32(tree.tree):
def __init__(self, p, adr, len = 1, fmt="0x%08x"):
tree.tree.__init__(self, adr, adr + len * 4, "const")
p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
self.fmt = fmt
def rfunc(self, p, t):
s = ".LWORD\t"
d = ""
for i in range(t.start, t.end, 4):
x = p.m.w32(i)
s += d
s += self.fmt % x
d = ", "
return (s,)
class ptr(tree.tree):
def __init__(self, p, adr, width = 2, len = 1):
tree.tree.__init__(self, adr, adr + len * width, "const")
p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
self.width = width
def rfunc(self, p, t):
s = ".PTR\t"
d = ""
for i in range(t.start, t.end, self.width):
if self.width == 2:
x = p.m.w16(i)
elif self.width == 4:
x = p.m.w32(i)
else:
assert self.width == "Wrong width"
s += d
if x in p.label:
s += p.label[x]
else:
s += p.m.afmt(x)
d = ", "
return (s,)
class ieee_fp64(tree.tree):
def __init__(self, p, adr, endian=">"):
tree.tree.__init__(self, adr, adr + 8, "ieee_fp64")
p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
b = bytearray()
for i in range(8):
b.append(p.m.rd(adr + i))
self.fp = unpack(endian + "d", b)
def rfunc(self, p, t):
return (".FP64\t%.15g" % self.fp,)
class ltxt(tree.tree):
def __init__(self, p, adr, align=2):
l = p.m.rd(adr)
len = l + 1
len += align - 1
len &= ~(align -1)
tree.tree.__init__(self, adr, adr + len, "const")
p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
self.l = l
self.txt = p.m.ascii(adr + 1, l)
def rfunc(self, p, t):
s = ".LTXT\t%d,'" % self.l + self.txt + "'"
return (s,)
class txtlen(tree.tree):
def __init__(self, p, adr, len, align=1):
llen = len + align - 1
llen &= ~(align -1)
tree.tree.__init__(self, adr, adr + llen, "const")
p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
self.txt = p.m.ascii(adr, len)
def rfunc(self, p, t):
s = ".TXT\t'" + self.txt + "'"
return (s,)
class txt(tree.tree):
def __init__(self, p, adr, len = None, align=1):
elen = 0
self.term=""
if len == None:
len = 0;
while True:
c = p.m.rd(adr + len)
if c == 0x00:
self.term=",0"
elen = 1
break;
len += 1
if c != 0x0a:
continue
# We treat newlines special:
# If it looks like text continues
# start another instance on the next line
# XXX: means length don't match, bad!
c2 = p.m.rd(adr + len)
if c2 == 0x0a or c2 == 0x00:
continue
txt(p, adr + len)
break;
if len <= 0:
print("BOGUS const.txt @%x" % adr)
return
if align == 2 and (adr+len+elen) & 1:
elen += 1
tree.tree.__init__(self, adr, adr + len + elen, "const")
x = p.t.add(self.start, self.end, self.tag, True, self)
self.render = self.rfunc
if len > 0:
self.txt = p.m.ascii(adr, len)
else:
self.txt = ""
def rfunc(self, p, t):
s = ".TXT\t'" + self.txt + "'" + self.term
return (s,)
class fill(tree.tree):
def __init__(self, p, lo = None, mid = None, hi = None, fmt = None, rd = None):
if rd == None:
rd = p.m.rd
if fmt == None:
fmt = p.m.dpct
if lo == None:
if mid != None:
lo = mid
elif hi != None:
lo = hi
else:
print("BOGUS fill(", lo, ",", mid, ",", hi, ")")
return
x = rd(lo)
while x == rd(lo - 1):
lo -= 1
if hi == None:
if mid != None:
hi = mid
elif lo != None:
hi = lo
else:
print("BOGUS fill(", lo, ",", mid, ",", hi, ")")
return
x = rd(hi)
try:
while x == rd(hi + 1):
hi += 1
except:
pass
hi += 1
if lo == None or hi == None:
print("BOGUS fill(", lo, ",", mid, ",", hi, ")")
return
tree.tree.__init__(self, lo, hi, "fill")
x = p.t.add(self.start, self.end, self.tag, True, self)
x.render = ".Fill\t" + \
fmt % rd(lo) + "[" + fmt % (hi-lo) + "]"
x.fold = True
def seven_seg_lcmt(y, val, map = ( 1, 2, 4, 8, 16, 32, 64, 128, 0)):
if val & map[0]:
y.lcmt(" --")
else:
y.lcmt(" ")
if val & map[5]:
s = " |"
else:
s = " "
if val & map[1]:
y.lcmt(s + " |")
else:
y.lcmt(s + " ")
if val & map[6]:
y.lcmt(" --")
else:
y.lcmt(" ")
if val & map[4]:
s = " |"
else:
s = " "
if val & map[2]:
y.lcmt(s + " |")
else:
y.lcmt(s + " ")
if val & map[8]:
s = "."
else:
s = " "
if val & map[3]:
s += " -- "
else:
s += " "
if val & map[7]:
y.lcmt(s + ".")
else:
y.lcmt(s)
y.lcmt(" ")
class seven_segment(tree.tree):
def __init__(self, p, adr,
map = ( 1, 2, 4, 8, 16, 32, 64, 128, 0)):
tree.tree.__init__(self, adr, adr + 1, "7seg")
y = p.t.add(self.start, self.end, self.tag, True, self)
val = p.m.rd(adr)
y.render = ".BYTE 0x%02x" % val
seven_seg_lcmt(y, val, map)