Woz OS for Apple-1 - high-level view in Python (v.1.0)

WozOS.py

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+ #  Woz OS for Apple-1 - high-level view in Python (v.1.0)
+ #  http://www.smartykit.io/ 
+ #  Copyright (C) 2022, Sergey Panarin, founder of SmartyKit <sergey@smartykit.io>
+ #  
+ #   This program is free software: you can redistribute it and/or modify
+ #   it under the terms of the GNU General Public License as published by
+ #   the Free Software Foundation, either version 3 of the License, or
+ #   (at your option) any later version.
+ #   This program is distributed in the hope that it will be useful,
+ #   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ #   GNU General Public License for more details.
+ #   You should have received a copy of the GNU General Public License
+ #   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+class HardwareInterface(object):
+	"""docstring for HardwareInterface"""
+
+	def __init__(self):
+		pass
+
+	def init(self):
+		print('Init hardware...')
+		return
+	def executeAction(self, action):
+		print(f'* executing {action} action')
+	# video driver
+	def ECHO(self, char):
+		print(char)
+	# keyboard driver
+	def GETLINE(self):
+		return 'FF00'
+
+class UserInterface(object):
+	userInput = ''
+	modes = {'XAM': 'examine memory cell',
+			 'BLOCK': 'examine memory block',
+			 'STOR': 'save in memory (cell or block)'
+			}
+
+	XAM_address = '0000'
+	STOR_address = '0000'
+
+	"""docstring for UserInterface"""
+	def __init__(self):
+		mode = self.modes['XAM']
+		return
+
+	def readUserInput(self):
+		print('\\')
+		self.userInput = 'FF00.FFFF'
+
+	def parseUserInput(self):
+		print('Parsing...')
+		action = ''
+		inputLength = len(self.userInput)
+	
+		if (self.userInput.find(".") > 0):
+			print("Setting XAM BLOCK mode...")
+			self.mode = self.modes #  Examine block mode
+			action = 'XAM BLOCK'
+		elif (self.userInput.find(":") > 0):
+			print("Setting STOR mode...")
+			self.mode = self.modes['STOR'] # STOR mode
+			action = 'STOR'
+		elif (self.userInput.find("R") > 0):
+			# "R"? -> run a program
+			print("RUN command detected...")
+			print("Running at memory address %s... To run the other program please RESET" % self.XAM_address)
+			action = 'RUN'
+
+		return action
+
+hardware = HardwareInterface()
+ui = UserInterface()
+
+print('*** Wozmonitor (WozOS) for Apple-1 (1976) ***')
+# reboot starting point ($FF00)
+# setup()
+hardware.init()
+
+# loop()
+i = 0
+max_loops = 5
+while (i < max_loops): # while (1) for infinite loop
+	ui.readUserInput()
+	action = ui.parseUserInput()
+	hardware.executeAction(action)
+	i = i + 1