小编Kas*_*ath的帖子

这是我的指令集模拟器Python脚本:

MEM_SIZE=100;

reg={'a':0, 'b':0, 'c':0, 'd':0, 'e':0,'f':0,'sp':0,'acc':0, 'pc':0, 'ivec':0, 'int':0, 'timer':0, 'halt':False};

memory=[0]*MEM_SIZE;

def mov(opr):
    reg[opr[0]]=reg[opr[1]];
    reg['pc']=reg['pc']+1;

def movv(opr):
    reg[opr[0]]=int(opr[1]);
    reg['pc']=reg['pc']+1;

def load(opr):
    reg[opr[0]]=memory[int(opr[1])];
    reg['pc']=reg['pc']+1;

def loadr(opr):
    reg[opr[0]]=memory[reg[opr[1]]];
    reg['pc']=reg['pc']+1;


def add(opr):
    reg['acc']=reg[opr[0]]+reg[opr[1]];
    reg['pc']=reg['pc']+1;

def sub(opr):
    reg['acc']=reg[opr[0]]-reg[opr[1]];
    reg['pc']=reg['pc']+1;


def call(opr):
    reg['sp']=reg['sp']+1;
    memory[reg['sp']]=reg['pc']+1;
    reg['pc']=int(opr[0]);


def out(opr):
    print reg[opr[0]];
    reg['pc']=reg['pc']+1;

def push(opr):
    reg['sp']=reg['sp']+1;
    memory[reg['sp']]=reg[opr[0]];
    reg['pc']=reg['pc']+1;

def pop(opr):
    reg[opr[0]]=memory[reg['sp']];
    reg['sp']=reg['sp']-1;
    reg['pc']=reg['pc']+1;


def halt(opr):
    reg['halt']=True;
    reg['pc']=reg['pc']+1;


f=open('ass-2.asm','r');

def runm():
    while reg['halt']==False:
        i=reg['pc'];
        op=globals()[memory[i][0]];
        #print i,memory[i][0:] ;
        op(memory[i][1:]);
        pass;

        reg['timer']=reg['timer']-1;
        if reg['int']==1 and reg['timer']==0:
            reg['sp']=reg['sp']+1;
            memory[reg['sp']]=reg['pc']; …