import SymbolTable
filename = sys.argv[1]
ifile = open(filename, 'r')
strfile = ifile.read()
instr = strfile.split('\n')
i = 0
l1 = ['', '\r', '\n']
instr_str = []
for x in instr:
if not x.startwith('//'):
if x not in l1:
instr_str.append(x.strip('\r'))
address = 16
sym = SymbolTable.Constructor()
for x in instr_str:
if x.find('@') >= 0 or x.find('(') >= 0:
symbol = Parser.symbol(x)
if not SymbolTable.contains(symbol, sym) and not symbol.isdigit():
sym = SymbolTable.addEntry(symbol, address, sym)
address = address + 1
while Parser.hasMoreCommands(i, instr_str):
c_type = Parser.commandType(instr_str[i])
if c_type == 'A':
str1 = Parser.symbol(instr_str[i])
if str1.isdigit():
str1 = bin(int(str1))[2:]
address = str1.zfill(16)
#!/usr/bin/python
import sys
import Parser
import Code
import SymbolTable
filename = sys.argv[1]
symboldict = SymbolTable.Constructor()
rfile = open(filename, 'r')
i = 0
linepre = rfile.readline()
flag = Parser.hasMoreCommands(linepre)
while flag:
while linepre == '\r\n' or linepre.startswith('//'):
linepre = rfile.readline()
if linepre.find('(') >= 0:
linepre = linepre.strip()
symbol = linepre.strip('()\n')
if not SymbolTable.contains(symbol, symboldict):
symboldict = SymbolTable.addEntry(symbol, i, symboldict)
else:
i += 1
linepre = Parser.advance(rfile, linepre)
flag = Parser.hasMoreCommands(linepre)
rfile.close()
j = 0
import Parser import Code import SymbolTable as st from sys import argv st.Constructor() f = open(argv[1]) lines = f.readlines() symbol_count = 0 cmd_count = 0 bin_output = '' # loop 1, check and build jump table for l in lines: cleaned_str = Parser.clean(l) cmd_type = Parser.commandType(cleaned_str) if cmd_type == Parser.A_COMMAND: cmd_count = cmd_count + 1 if cmd_type == Parser.C_COMMAND: cmd_count = cmd_count + 1 if cmd_type == Parser.L_COMMAND: symbol = cleaned_str[1:-1] st.addEntry(symbol, cmd_count) for l in lines: cleaned_str = Parser.clean(l) cmd_type = Parser.commandType(cleaned_str) # A command
