📚 Added and tested push and pop

This commit is contained in:
zombie maniac 2021-02-01 17:14:01 -05:00
parent e770616f3d
commit 9f5924784f
3 changed files with 197 additions and 12 deletions

144
.gitignore vendored Normal file
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@ -0,0 +1,144 @@
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@ -1 +1,21 @@
#nothing here yet jimbo #made by zombie
import numpy as np
class Console:
def __init__(self, memory=None):
self._memory = memory
def draw(self):
disp = np.empty([], dtype=str)
for i, value in enumerate(self._memory):
if i % 2 == 0: #only print text not color
if i % 50 == 0: #console size
disp = np.append(disp, str(int(value)))
print('\n')
else:
disp = np.append(disp, str(int(value)))
print(disp)

43
main.py
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@ -22,12 +22,14 @@
#1 reset #1 reset
#2 debug info (nop) #2 debug info (nop)
#3 mov #3 mov
#4 push (onto stack)
#5 pop (off of stack into address)
import math import math
import numpy as np import numpy as np
from console import Console
np.set_printoptions(threshold=np.inf)
@ -71,6 +73,14 @@ class Zomcpu:
elif opcode == 3: #mov elif opcode == 3: #mov
self.write_memory(address, value) self.write_memory(address, value)
elif opcode == 4: #push
self.write_memory(self._memory[7], value) #put value onto stack
self.write_memory(7, self._memory[7] - 1) #dec stackpointer
elif opcode == 5: #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(7, self._memory[7] + 1) #inc stackpointer
self._memory[0] += 3 #increment instruction pointer self._memory[0] += 3 #increment instruction pointer
@ -81,19 +91,30 @@ class Zomcpu:
def read_memory(self): def read_memory(self):
return self._memory return self._memory
def read_memory_address(self, address): def read_memory_address(self, address):
return self._memory[address] return self._memory[int(address)]
if __name__ == "__main__": if __name__ == "__main__":
cpu = Zomcpu(65536, True) cpu = Zomcpu(65536, True)
cpu.reset() cpu.reset()
print(cpu.read_memory_address(7))
#hard coded opcodes #hard coded opcodes
cpu.write_memory(256, 3) cpu.write_memory(256, 3) #mov
cpu.write_memory(257, 27) cpu.write_memory(257, 27) #address 27
cpu.write_memory(258, 105) cpu.write_memory(258, 105) #105 into ^
print(cpu.read_memory_address(27)) cpu.write_memory(259, 4) #push
cpu.exec() cpu.write_memory(260, 0) #unused in this op
print(cpu.read_memory_address(27)) cpu.write_memory(261, 27) #the value at address 27 onto the stack
cpu.write_memory(262, 5) #pop
cpu.write_memory(263, 100) #into 100
cpu.write_memory(264, 0) #unused in this op
cpu.exec()
print(cpu.read_memory_address(100))
print(cpu.read_memory_address(264))
print(cpu.read_memory_address(7))
#c = Console(cpu.read_memory()) ima finish this later
#c.draw()