nbrooks211/ZombieCPU
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💻 Put the opcodes in a sperate file and labeled them

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zombie maniac 2021-02-01 18:50:32 -05:00
parent 9f5924784f
commit 77a9a00bd5
3 changed files with 87378 additions and 18 deletions
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fuuckfuckfuck2 Normal file
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35
main.py
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@ -28,7 +28,7 @@
import math import math
import numpy as np import numpy as np
from console import Console import opcodes as ops
np.set_printoptions(threshold=np.inf) np.set_printoptions(threshold=np.inf)
@ -48,8 +48,8 @@ class Zomcpu:
self._memory[0] = 256 #set instructiojn pointer self._memory[0] = 256 #set instructiojn pointer
def exec(self): def exec(self):
Go = 1 Halted = False
while Go: #change this to if not halt while not Halted: #change this to if not halt
#fetch #fetch
opcode = self._memory[int(self._memory[0])] opcode = self._memory[int(self._memory[0])]
address = self._memory[int(self._memory[0] + 1)] address = self._memory[int(self._memory[0] + 1)]
@ -58,26 +58,27 @@ class Zomcpu:
if self._debug: if self._debug:
print(f'Opcode: {opcode}\nAddress: {address}\nValue: {value}\nIP: {self._memory[0]}') print(f'Opcode: {opcode}\nAddress: {address}\nValue: {value}\nIP: {self._memory[0]}')
if opcode == 0: if opcode == ops.NOP:
Go = value pass
if value == 0:
elif opcode == ops.HLT:
Halted = True
print('Processor Halted') print('Processor Halted')
elif opcode == 1: #reset elif opcode == ops.RST: #reset
self.reset() self.reset()
elif opcode == 2: #debug (nop if debug is not set) elif opcode == ops.DBG: #debug enable
if self._debug: self._debug = value
print(f'Opcode: {opcode}\nAddress: {address}\nValue: {value}')
elif opcode == 3: #mov elif opcode == ops.LDI: #mov but actually load immediate
self.write_memory(address, value) self.write_memory(address, value)
elif opcode == 4: #push elif opcode == ops.PUSH: #push
self.write_memory(self._memory[7], value) #put value onto stack self.write_memory(self._memory[7], value) #put value onto stack
self.write_memory(7, self._memory[7] - 1) #dec stackpointer self.write_memory(7, self._memory[7] - 1) #dec stackpointer
elif opcode == 5: #pop elif opcode == ops.POP: #pop
self.write_memory(address, self.read_memory_address(self._memory[7] + 1)) #read the last value and put it into address (not the empty space) self.write_memory(address, self.read_memory_address(self._memory[7] + 1)) #read the last value and put it into address (not the empty space)
self.write_memory(7, self._memory[7] + 1) #inc stackpointer self.write_memory(7, self._memory[7] + 1) #inc stackpointer
@ -98,15 +99,17 @@ if __name__ == "__main__":
cpu.reset() cpu.reset()
#hard coded opcodes #hard coded opcodes
cpu.write_memory(256, 3) #mov cpu.write_memory(256, ops.LDI) #mov
cpu.write_memory(257, 27) #address 27 cpu.write_memory(257, 27) #address 27
cpu.write_memory(258, 105) #105 into ^ cpu.write_memory(258, 105) #105 into ^
cpu.write_memory(259, 4) #push cpu.write_memory(259, ops.PUSH) #push
cpu.write_memory(260, 0) #unused in this op cpu.write_memory(260, 0) #unused in this op
cpu.write_memory(261, 27) #the value at address 27 onto the stack cpu.write_memory(261, 27) #the value at address 27 onto the stack
cpu.write_memory(262, 5) #pop cpu.write_memory(262, ops.POP) #pop
cpu.write_memory(263, 100) #into 100 cpu.write_memory(263, 100) #into 100
cpu.write_memory(264, 0) #unused in this op cpu.write_memory(264, 0) #unused in this op
cpu.write_memory(265, 1) #halt

7
opcodes.py Normal file
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@ -0,0 +1,7 @@
NOP = 0 # No operation
HLT = 1 # Halt
RST = 2 # Reset
DBG = 3 # Enables Debug
LDI = 4 # Load Immediate
PUSH = 5 # Push
POP = 6 # Pop