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Restructure code

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In anticipation of upcoming change.
This commit is contained in:
Behdad Esfahbod 2013-11-14 20:16:41 -05:00
parent 4fab60ca5b
commit 4ff7712131
1 changed files with 32 additions and 32 deletions
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64
Lib/fontTools/ttLib/tables/ttProgram.py
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@ -350,40 +350,40 @@ class Program:
try:
mnemonic, argBits, argoffset = opcodeDict[op]
except KeyError:
try:
if op in streamOpcodeDict:
mnemonic, argBits, argoffset = streamOpcodeDict[op]
except KeyError:
pushBytes = pushWords = 0
if argBits:
if mnemonic == "PUSHB":
pushBytes = op - argoffset + 1
else:
pushWords = op - argoffset + 1
else:
i = i + 1
if mnemonic == "NPUSHB":
pushBytes = bytecode[i]
else:
pushWords = bytecode[i]
i = i + 1
nValues = pushBytes or pushWords
assert nValues > 0
if nValues == 1:
assembly.append("%s[ ] /* %s value pushed */" % (mnemonic, nValues))
else:
assembly.append("%s[ ] /* %s values pushed */" % (mnemonic, nValues))
for j in range(pushBytes):
value = bytecode[i]
assembly.append(`value`)
i = i + 1
for j in range(pushWords):
# cast to signed int16
value = (bytecode[i] << 8) | bytecode[i+1]
if value >= 0x8000:
value = value - 0x10000
assembly.append(`value`)
i = i + 2
else:
raise tt_instructions_error, "illegal opcode: 0x%.2x" % op
pushBytes = pushWords = 0
if argBits:
if mnemonic == "PUSHB":
pushBytes = op - argoffset + 1
else:
pushWords = op - argoffset + 1
else:
i = i + 1
if mnemonic == "NPUSHB":
pushBytes = bytecode[i]
else:
pushWords = bytecode[i]
i = i + 1
nValues = pushBytes or pushWords
assert nValues > 0
if nValues == 1:
assembly.append("%s[ ] /* %s value pushed */" % (mnemonic, nValues))
else:
assembly.append("%s[ ] /* %s values pushed */" % (mnemonic, nValues))
for j in range(pushBytes):
value = bytecode[i]
assembly.append(`value`)
i = i + 1
for j in range(pushWords):
# cast to signed int16
value = (bytecode[i] << 8) | bytecode[i+1]
if value >= 0x8000:
value = value - 0x10000
assembly.append(`value`)
i = i + 2
else:
if argBits:
assembly.append(mnemonic + "[%s]" % num2binary(op - argoffset, argBits))