def main():
if sys.argv[1][-2:] != "vm":
print("Error: wrong file type for input, use \".vm\" file !")
sys.exit()
inputfile = sys.argv[1]
#inputfile = "BasicTest.vm"
outputfile = inputfile[:-2] + "asm"
par = Parse(inputfile)
cw = CodeWriter(outputfile)
while par.hasMoreCommands():
par.advance()
ctype = par.cmdType()
#print(par.current_cmd)
#print(par.cmdType())
#print(par.arg1())
#print(par.arg2())
if ctype == "C_ARITHMETIC":
cw.writeArithmetic(par.arg1())
elif ctype == "C_PUSH" or ctype == "C_POP":
cw.writePushPop(ctype, par.arg1(), par.arg2())
cw.close()
def write_vm1(inputfile, in_filename, ctabel, cw):
par = Parse(inputfile, ctabel)
cw.setInputname(in_filename)
while par.hasMoreCommands():
par.advance()
ctype = par.cmdType()
if ctype == "C_ARITHMETIC":
cw.writeArithmetic(par.arg1())
elif ctype == "C_PUSH" or ctype == "C_POP":
cw.writePushPop(ctype, par.arg1(), int(par.arg2()))
elif ctype == "C_LABEL":
cw.writeLabel(par.arg1())
elif ctype == "C_IF":
cw.writeIf(par.arg1())
elif ctype == "C_GOTO":
cw.writeGoto(par.arg1())
elif ctype == "C_FUNCTION":
cw.writeFunction(par.arg1(), int(par.arg2()))
elif ctype == "C_RETURN":
cw.writeReturn()
elif ctype == "C_CALL":
cw.writeCall(par.arg1(), int(par.arg2()))
