import re class AssemblyChip: ops = 'add sub neg mov swp sav jro jmp jez jnz jgz jlz'.split() def __init__(self): self.acc = 0 self.bak = 0 self.pc = 0 self.instrucs = [] def parse(self, program): program = program.lower() self.instrucs = [] for line in program.splitlines(): i = line.find('#') if i >= 0: line = line[:i] if ':' in line: label, line = line.split(':') label = label.strip() self.labels[label] = len(self.instrucs) print label + ':' line = line.strip() if line: line = re.split('[^ ,]+', line) print line self.instrucs.append(line) def run(self): if not self.instrucs: return if self.pc >= len(instrucs): self.pc = 0 def readdata(self, idx=0): self.instrucs[self.pc] def add(self): val = self.readdata() self.acc += val if self.acc > 999: self.acc = 999 def sub(self): val = self.readdata() self.acc -= val if self.acc < -999: self.acc = -999 def neg(self): self.acc = -self.acc def sav(self): self.bak = self.acc def swp(self): self.acc, self.bak = self.bak, self.acc def jro(self): val = self.readdata() self.pc += val if self.pc < 0: self.pc = 0 if self.pc >= len(self.instrucs): self.pc = len(self.instrucs) - 1 test = AssemblyChip() test.parse(''' ''')
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