Add little endianess, debug memory addressing

components/caretaker.py

@@ -27,7 +27,6 @@ class Caretaker:
 			elif value > (2**8) and key=="MBR" and key=="MBRU": # Check value fit in byte
 				print("Warning byte overflow: value {} on register {}".format(value,key))
 				value=value%256 # Force to fit in byte
-
 		self.objects[key]=value
 		
 	def items(self):

components/microprogram.py

@@ -1,9 +1,6 @@
 
 from components.ijvm import ijvm
 
-# TODO: Switch MAR as 32bits address (multiply its value by for)
-#		then same for SP and LV
-
 class Microprogram:
 	
 	def __init__(self,components):
@@ -164,7 +161,7 @@ class Microprogram:
 		print("-------------- RAM --------------")
 		self.c["RAM"].dump()
 		print("------------- Stack -------------")
-		self.c["RAM"].dumpRange(self.c["LV"],self.c["SP"])
+		self.c["RAM"].dumpRange(self.c["LV"]*4,self.c["SP"]*4,4) # Convert address to 32bits value
 		print("----------- Registers -----------")
 		for key,value in self.c.items():
 			if key!="RAM":

components/ram.py

@@ -34,19 +34,25 @@ class Ram:
 		"""
 			Write data to memory based Mic-1 architecture
 		"""
-		addr=self.c["MAR"]
+		addr=self.c["MAR"]*4 # Don't forget MAR address 32bits block of memory
 		if addr>self.lastAddr:
 			raise ValueError("You get out of the ram by trying to set a value at address {}, max address is {}".format(addr,self.lastAddr))
-		self.data[addr]=self.c["MDR"]
+		#### Little endian ####
+		self.data[addr]=self.c["MDR"] & 0xFF
+		self.data[addr+1]=self.c["MDR"] & 0xFF00
+		self.data[addr+2]=self.c["MDR"] & 0xFF0000
+		self.data[addr+3]=self.c["MDR"] & 0xFF000000
+
 	
 	def read(self):
 		"""
 			Read data from memory based Mic-1 architecture
 		"""
-		addr=self.c["MAR"]
+		addr=self.c["MAR"]*4 # Don't forget MAR address 32bits block of memory
 		value=None
 		try:
-			value=self.data[addr]
+			#### Little endian ####
+			value=(self.data[addr+3]<<24)|(self.data[addr+2]<<16)|(self.data[addr+1]<<8)|self.data[addr]
 		except:
 			if addr>self.lastAddr:
 				raise ValueError("You get out of the ram by trying to get value at address {}, max address is {}".format(addr,self.lastAddr))
@@ -77,11 +83,11 @@ class Ram:
 			#print("{}:{}".format(key,bin(value)[2:]))
 			print("{}:{}".format(key,value))
 		
-	def dumpRange(self,start,end):
+	def dumpRange(self,start,end,step):
 		"""
 			Another dump helper
 		"""
-		for i in range(start,end+1):
+		for i in range(start,end+1,step):
 			try:
 				print("{}:{}".format(i,self.data[i]))
 			except:

ram.txt

@@ -1,9 +1,5 @@
 BIPUSH
-1
+7
 BIPUSH
-0
+8
-GOTO
+IADD
-0
-0
-BIPUSH
-30