125 lines
5.0 KiB
Python
125 lines
5.0 KiB
Python
numericKeys = [ "0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F" ]
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def toHex(n):
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return "%0.2X" % n
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class Monitor:
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def __init__(self, cpu):
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self.cpu = cpu
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self.monitorMode = 'addressEntry' # or dataEntry
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self.monitorAddressInput = TwoDigitHexInput()
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self.monitorDataInput = TwoDigitHexInput()
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# In data entry mode, when a full byte is keyed in,
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# the next keypress advances to the next address and continues entering data there.
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# This variable tracks whether it's time to do that or not.
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self.advanceDataEntryNextPress = False
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def handleKeys(self):
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keypad_event = keymatrix.events.get()
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keyPressed = True if (keypad_event and keypad_event.released ) else False
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key = keymap[keypad_event.key_number] if keyPressed else False
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numericKeyPressed = True if (keyPressed and (key in numericKeys)) else False
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if self.cpu.running:
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if key == "runhalt":
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print("HALT PRESSED")
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self.cpu.running = False
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time.sleep(0.5) # lazy debounce
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# km.events.clear() # don't track keypresses from during the run
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if numericKeyPressed:
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self.cpu.memory[26] = int(key, 16)
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elif not self.cpu.running:
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if key == "runhalt":
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self.cpu.running = True
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print("\nSTARTING")
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time.sleep(0.5) # lazy debounce
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if key == "addr":
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self.monitorMode = 'addressEntry'
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print("\nENTERING", self.monitorMode, "MODE")
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self.monitorAddressInput.currentDigit = 0
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time.sleep(0.5) # lazy debounce
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if key == "data":
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self.monitorMode = 'dataEntry'
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print("\nENTERING", self.monitorMode, "MODE")
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self.monitorDataInput.clear()
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self.advanceDataEntryNextPress = False
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time.sleep(0.5) # lazy debounce
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if key == "step":
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print("\nSINGLE STEP FROM MONITOR ADDR")
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# self.IP = self.monitorAddressInput.value
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self.cpu.step()
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time.sleep(0.5) # lazy debounce
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if numericKeyPressed:
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if self.monitorMode == 'addressEntry':
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self.monitorAddressInput.input(int(key, 16))
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self.cpu.IP = self.monitorAddressInput.value
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print("MA", self.cpu.IP)
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if self.monitorMode == 'dataEntry':
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if self.advanceDataEntryNextPress:
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print("ADVANCING")
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self.cpu.IP = (self.cpu.IP + 1) % 256
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# self.monitorDataInput.clear() # reset .currentDigit
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self.monitorDataInput.set(self.cpu.memory[self.cpu.IP])
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self.advanceDataEntryNextPress = False
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self.monitorDataInput.input(int(key, 16))
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self.cpu.memory[self.cpu.IP] = self.monitorDataInput.value
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print("MD", self.monitorDataInput.value)
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if self.monitorDataInput.currentDigit == 0: # that was the second keypress, so next keypress is for the next address
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self.advanceDataEntryNextPress = True
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print("Acc", self.cpu.acc, "IP", self.cpu.IP, "Data", self.cpu.memory[self.cpu.IP], "\n")
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def displayScreen(self):
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for x in range(8):
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for y in range(8):
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matrix[x, y] = self.cpu.memory[x + (8*y)]
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def run(self):
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#self.cpu.start()
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t = time.time()
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while (time.time() - t) < 120: # TODO: add a time delta or sth maybe so this doesn't just burn cycles
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self.handleKeys()
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display_1.print(toHex(self.cpu.IP) + toHex(self.cpu.memory[self.cpu.IP]))
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# display_1.print(toHex(self.monitorAddressInput.value) + toHex(self.cpu.memory[self.cpu.IP]))
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# display_2.print(toHex(self.cpu.IP) + toHex(self.cpu.acc))
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display_2.print(toHex(self.cpu.acc))
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self.displayScreen()
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if self.cpu.running:
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self.cpu.step()
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# time.sleep(0.5) # TODO ?
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print("timeout")
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print(self.cpu.memory)
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cpu = CPU()
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monitor = Monitor(cpu)
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# preamble = '00 ' * 64
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# prog = preamble + '02 01 13 f0 12 f0 04 02 03 f0 12 f0 05 41 08 00 06 40 00 00' # STRIPES
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# offset = 64
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# prog = preamble + '02 01 13 f0 12 f0 04 02 03 f0 05 08 09 00 04 09 03 f0 07 41 06' + toHex(offset) + '00 00'
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#prog = '00'
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# program_bytes = bytearray.fromhex(prog.replace(" ", ""))
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# Add jmp at addr 254:
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#program_with_jump = program_bytes + bytearray(254 - len(program_bytes)) + bytearray.fromhex('0600') # jump to addr 00
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# program_with_jump = program_bytes + bytearray(254 - len(program_bytes)) + bytearray.fromhex('0640') # jump to addr 0x40 (dec 64)
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with open('test-multiply2.bin', 'rb') as file:
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program_bytes = bytearray(file.read())
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cpu.load_memory(program_bytes)
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monitor.run()
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