day 5 attempt fail

2019/day-5/copy.py

@@ -0,0 +1,94 @@
+class ComputationFinished(Exception):
+    pass
+
+class Computer:
+    def __init__(self, memory, input_=(), pointer=0):
+        self.memory = memory
+        self.pointer = pointer
+        self.input = iter(input_)
+        
+        self.READ_MODES = {
+            0: (self.point, self.point, self.point),
+            100: (self.point, self.point, self.value),
+            10: (self.point, self.value, self.point),
+            110: (self.point, self.value, self.value),
+            1: (self.value, self.point, self.point),
+            101: (self.value, self.point, self.value),
+            11: (self.value, self.value, self.point),
+            111: (self.value, self.value, self.value),}
+    
+        self.OP_CODES = {
+            1: (self.op_add, 3),
+            2: (self.op_mul, 3),
+            3: (self.op_input, 1),
+            4: (self.op_print, 1),
+            5: (self.op_jit, 2),
+            6: (self.op_jif, 2),
+            7: (self.op_lt, 3),
+            8: (self.op_eq, 3),
+            99: (self.op_exit, 0), }
+
+    def step(self):
+        op, parameters, offset = self.read_opcode(self.pointer)
+        self.pointer += offset
+        op(*parameters)
+        
+    def read_opcode(self, pointer):
+        code = self.memory[pointer]
+        readmodes, opcode = divmod(code, 100)
+        op, nargs = self.OP_CODES[opcode]
+        argument_functions = self.READ_MODES[readmodes][:nargs]
+        parameters = [f(ptr) for f, ptr in zip(argument_functions, range(pointer+1, pointer+4))]
+        return op, parameters, nargs + 1
+        
+    def op_add(self, par1, par2, par3):
+        self.memory[par3] = self.memory[par1] + self.memory[par2]
+        
+    def op_mul(self, par1, par2, par3):
+        self.memory[par3] = self.memory[par1] * self.memory[par2]
+        
+    def op_input(self, par1):
+        self.memory[par1] = next(self.input)
+        
+    def op_print(self, par1):
+        print(self.memory[par1])
+        
+    def op_exit(self,):
+        raise ComputationFinished
+        
+    def op_jit(self, par1, par2):
+        if self.memory[par1] != 0:
+            self.pointer = self.memory[par2]
+    
+    def op_jif(self, par1, par2):
+        if self.memory[par1] == 0:
+            self.pointer = self.memory[par2]
+    
+    def op_lt(self, par1, par2, par3):
+        self.memory[par3] = int(self.memory[par1] < self.memory[par2])
+        
+    def op_eq(self, par1, par2, par3):
+        self.memory[par3] = int(self.memory[par1] == self.memory[par2])
+    
+    def value(self, location):
+        return location
+    
+    def point(self, location):
+        ptr = self.memory[location]
+        return ptr
+    
+    def run(self):
+        try:
+            while True:
+                self.step()
+        except ComputationFinished:
+            return
+
+
+def day5(data, input_=(1,)):
+    tape = list(map(int, data.split(",")))
+    computer = Computer(tape, input_=input_)
+    computer.run()
+
+day5(open("F://Programming//advent-of-code//2019//day-5//input").read())
+day5(open("F://Programming//advent-of-code//2019//day-5//input").read(), input_=(5,))