def __init__(self): self.source = None self.jvm = JavaEmitter()
import sys
sys.path.append("../")
from JavaEmitter import *
j = JavaEmitter()
j.debugOn()
j.add(Opcode.IMUL)
j.finish()
class ParserBase(Compiler):
def __init__(self):
self.source = None
self.jvm = JavaEmitter()
def pushConstantInt(self, val):
if val <= 3:
if val == 0:
self.jvm.emit1byte(Opcode.ICONST_0)
elif val == 1:
self.jvm.emit1byte(Opcode.ICONST_1)
elif val == 2:
self.jvm.emit1byte(Opcode.ICONST_2)
elif val == 3:
self.jvm.emit1byte(Opcode.ICONST_3)
elif val <= 127:
if val == 4:
self.jvm.emit1byte(Opcode.ICONST_4)
elif val == 5:
self.jvm.emit1byte(Opcode.ICONST_5)
else:
self.jvm.emit2byte(Opcode.BIPUSH, val)
elif val <= 32767:
self.jvm.emit3byte(Opcode.SIPUSH, val)
elif val < 2147483648 :
times = val / 32767
#print "---", times, " times"
self.jvm.emit3byte(Opcode.SIPUSH, 32767)
self.jvm.emit3byte(Opcode.SIPUSH, times)
self.jvm.emit1byte(Opcode.IMUL)
rem = val % 32767
#print "---", rem, " rem"
self.jvm.emit3byte(Opcode.SIPUSH, rem)
self.jvm.emit1byte(Opcode.IADD)
else:
raise CompilerException("Integer too Large: " + str(val))
def pushConstant(self, operand):
val = int(operand.toString())
self.pushConstantInt(val)
