def process_instruction(self):
opcode = self.instr.attrib['opcode']
try:
if opcode == 'CREATEFRAME':
op.CREATEFRAME(self)
elif opcode == 'PUSHFRAME':
op.PUSHFRAME(self)
elif opcode == 'POPFRAME':
op.POPFRAME(self)
elif opcode == 'DEFVAR':
op.DEFVAR(self)
elif opcode == 'MOVE':
op.MOVE(self)
elif opcode == 'CALL':
op.CALL(self); return
elif opcode == 'RETURN':
op.RETURN(self); return
#####################
elif opcode == 'PUSHS':
op.PUSHS(self)
elif opcode == 'POPS':
op.POPS(self)
elif opcode == 'CLEARS':
op.CLEARS(self)
#####################
elif opcode == 'ADD':
op.ADD(self)
elif opcode == 'ADDS':
op.ADDS(self)
elif opcode == 'SUB':
op.SUB(self)
elif opcode == 'SUBS':
op.SUBS(self)
elif opcode == 'MUL':
op.MUL(self)
elif opcode == 'MULS':
op.MULS(self)
elif opcode == 'IDIV':
op.IDIV(self)
elif opcode == 'IDIVS':
op.IDIVS(self)
elif opcode == 'DIV':
op.DIV(self)
elif opcode == 'DIVS':
op.DIV(self)
elif opcode == 'LT':
op.LT(self)
elif opcode == 'LTS':
op.LTS(self)
elif opcode == 'GT':
op.GT(self)
elif opcode == 'GTS':
op.GTS(self)
elif opcode == 'EQ':
op.EQ(self)
elif opcode == 'EQS':
op.EQS(self)
elif opcode == 'AND':
op.AND(self)
elif opcode == 'ANDS':
op.ANDS(self)
elif opcode == 'OR':
op.OR(self)
elif opcode == 'ORS':
op.ORS(self)
elif opcode == 'NOT':
op.NOT(self)
elif opcode == 'NOTS':
op.NOTS(self)
elif opcode == 'INT2CHAR':
op.INT2CHAR(self)
elif opcode == 'INT2CHARS':
op.INT2CHARS(self)
elif opcode == 'STRI2INT':
op.STRI2INT(self)
elif opcode == 'STRI2INTS':
op.STRI2INTS(self)
elif opcode == 'INT2FLOAT':
op.INT2FLOAT(self)
elif opcode == 'FLOAT2INT':
op.FLOAT2INT(self)
elif opcode == 'INT2FLOATS':
op.INT2FLOAT(self)
elif opcode == 'FLOAT2INTS':
op.FLOAT2INT(self)
#####################
elif opcode == 'READ':
op.READ(self)
elif opcode == 'WRITE':
op.WRITE(self)
#####################
elif opcode == 'CONCAT':
op.CONCAT(self)
elif opcode == 'STRLEN':
op.STRLEN(self)
elif opcode == 'GETCHAR':
op.GETCHAR(self)
elif opcode == 'SETCHAR':
op.SETCHAR(self)
#####################
elif opcode == 'TYPE':
op.TYPE(self)
#####################
elif opcode == 'LABEL':
op.LABEL()
elif opcode == 'JUMP':
op.JUMP(self); return
elif opcode == 'JUMPIFEQ':
if op.JUMPIFEQ(self): return
elif opcode == 'JUMPIFEQS':
if op.JUMPIFEQS(self): return
elif opcode == 'JUMPIFNEQ':
if op.JUMPIFNEQ(self): return
elif opcode == 'JUMPIFNEQS':
if op.JUMPIFNEQS(self): return
elif opcode == 'EXIT':
retcode = op.EXIT(self); sys.exit(retcode)
#####################
elif opcode == 'DPRINT':
op.DPRINT(self)
elif opcode == 'BREAK':
op.BREAK(self)
else:
raise Exception(32, 'Unknown opcode') # this should not happen...
except Exception as e:
raise e
self.ip += 1 # increment the instruction pointer
