67 lines
1.6 KiB
Python
67 lines
1.6 KiB
Python
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from components.ijvm import ijvm
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class Ram:
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def __init__(self,components,size):
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self.data=dict()
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self.lastAddr=size-1
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self.c=components
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def loadRamFile(self,filepath):
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data=dict()
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addr=0
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f=open(filepath,"r")
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for line in f.readlines():
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line=line.rstrip() # remove \n
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if line in ijvm:
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data[addr]=int(ijvm[line])
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else:
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data[addr]=int(line,0)
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addr+=1
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f.close()
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self.data=data
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def write(self):
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addr=self.c["MAR"]
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if addr>self.lastAddr:
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raise ValueError("You get out of the ram by trying to set a value at address {}, max address is {}".format(addr,self.lastAddr))
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self.data[addr]=self.c["MDR"]
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def read(self):
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addr=self.c["MAR"]
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value=None
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try:
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value=self.data[addr]
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except:
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if addr>self.lastAddr:
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raise ValueError("You get out of the ram by trying to get value at address {}, max address is {}".format(addr,self.lastAddr))
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if(value==None):
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return(0)
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return(value)
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def fetch(self):
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addr=self.c["PC"]
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value=None
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try:
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value=self.data[addr]
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except:
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if addr>self.lastAddr:
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raise ValueError("You get out of the ram by trying to get value at address {}, max address is {}".format(addr,self.lastAddr))
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if(value==None):
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return(0)
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return(value)
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def dump(self):
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print("------- RAM --------")
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for key,value in self.data.items():
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#print("{}:{}".format(key,bin(value)[2:]))
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print("{}:{}".format(key,value))
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print("--------------------")
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def dump(self,start,end):
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for i in range(start,end+1):
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try:
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print("{}:{}".format(i,self.data[i]))
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except:
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print("{}:0".format(i))
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