##################################################################### Curses stuffimport curses, stringclass CodeWindow:	# Member variables	# x1, y1, width, height	-- Window coordinates	# cwnd			-- Curses window	# disasm		-- A Disassembler object	# wndlines		-- An array of the lines of display in the window	# wndpa			-- Top-of-window program address	# pc			-- Current program counter	# spa			-- Selected program address	def __init__(self, cwnd, x, y, w, h):		self.cwnd = cwnd		self.x, self.y, self.width, self.height = x,y,w,h		self.disasm = None		cwnd.border()		cwnd.addstr(0, 2, "[Code]")				self.wndpa = 0		self.pc = 0		self.spa = 0		self.wndlines = [ ]	def set_display_params(self, wndpa, pc, spa):		self.wndpa = wndpa		self.pc = pc		self.spa = spa	def update_pc(self, pc):		self.pc = pc		if self.pc < self.wndpa or self.pc >= (self.wndpa+self.height-2):			self.wndpa = self.pc - 8		self.spa = self.pc			def move_cursor(self, pa):		self.spa = pa		self.repaint()			def move_cursor_up(self):		self.spa = self.spa - 2		self.repaint()	def move_cursor_down(self):		self.spa = self.spa + 2		self.repaint()			def disasm_one_line(self, addr):		da = self.disasm.disasm(addr)		if da[:5] == '.word':			dap = string.split(da)			da = dap[0] + '\t' + dap[1]		chars = list(self.disasm.read(addr, 2))		cv1 = ord(chars[0])		cv2 = ord(chars[1])		if ord(chars[0]) < 32 or ord(chars[0]) > 126:			chars[0] = '.'		if ord(chars[1]) < 32 or ord(chars[1]) > 126:			chars[1] = '.'		s = "%08x  %c%c  %02x%02x  %s" % (addr, chars[0], chars[1], \			cv2, cv1,			da)		s = string.replace(s, "\t", " "*4)		if len(s) >= (self.width-2):			s = s[:self.width-2]		elif len(s) < (self.width-2):			s = s + " "*((self.width - 2) - len(s))		return s	def refresh(self):		self.wndlines = [ ]		for i in range(0, self.height - 2):			self.wndlines.append(self.disasm_one_line(self.wndpa+i*2))				self.repaint()	def repaint(self):		cw = self.cwnd		for i in range(0, self.height - 2):			s = self.wndlines[i]			if self.wndpa+i*2 == self.pc:				s = string.replace(s, " ", "*")			if self.wndpa+i*2 == self.spa:				cw.standout()				cw.addstr(i+1, 1, s)				cw.standend()			else:				cw.addstr(i+1, 1, s)		cw.refresh()		class RegistersWindow:	# Member variables	# x1, y1, width, height	-- Window coordinates	# cwnd			-- Curses window	def __init__(self, cwnd, x, y, w, h):		self.cwnd = cwnd		self.x, self.y, self.width, self.height = x,y,w,h		cwnd.border()		cwnd.addstr(0, 2, "[Regs]")	def doodle(self, regs):		for i in range(16):			if i<10:				s = " "			else:				s = ""			self.cwnd.addstr(1+i, 1, "R%d  %s%08x" % (i,s,regs['R%d' % i]))		self.cwnd.addstr(18, 1, "PC   %08x" % regs['PC'])		self.cwnd.addstr(19, 1, "PR   %08x" % regs['PR'])		self.cwnd.addstr(20, 1, "SR   %08x" % regs['SR'])		self.cwnd.addstr(21, 1, "  t      %d" % (regs['SR'] & 1))		self.cwnd.addstr(22, 1, "  imask  0000" )		self.cwnd.addstr(23, 1, "  md     0")		self.cwnd.addstr(24, 1, "  rb     0")		self.cwnd.addstr(25, 1, "  bl     0")		self.cwnd.addstr(26, 1, "  fd     0")		self.cwnd.addstr(27, 1, "GBR  %08x" % regs['GBR'])		self.cwnd.addstr(28, 1, "VBR  %08x" % regs['VBR'])		self.cwnd.addstr(29, 1, "MACH %08x" % regs['MACH'])		self.cwnd.addstr(30, 1, "MACL %08x" % regs['MACL'])		self.cwnd.refresh()class MessageWindow:	# Member variables	# x1, y1, width, height	-- Window coordinates	# cwnd			-- Curses window	# lines			-- Lines of display text	# linecnt, colcnt	-- Number of lines, cols of text		def __init__(self, cwnd, x, y, w, h):		self.cwnd = cwnd		self.x, self.y, self.width, self.height = x,y,w,h		cwnd.border()		cwnd.addstr(0, 2, "[Messages]")				self.linecnt = self.height - 2		self.colcnt = self.width - 2		self.lines = [ ]		for i in range(self.linecnt):			self.lines.append("")	def write_message(self, s):		if len(s) <= self.colcnt:			self.write_one_line(s)		else:			while len(s) > 0:				sp = s[:self.colcnt]				self.write_one_line(sp)				s = s[self.colcnt:]		self.refresh()			def write_one_line(self, line):		self.lines = self.lines[1:] + [line]		def refresh(self):		for i in range(self.linecnt):			#self.cwnd.addstr(i+1, 1, " " * self.colcnt)			self.cwnd.hline(i+1, 1, 32, self.colcnt)			self.cwnd.addstr(i+1, 1, self.lines[i])		self.cwnd.refresh()class Screen:	# Member variables	# scrn			-- Curses window object of the whole screen	# scrn_w, scrn_h	-- Integer width and height of screen	# codewnd		-- Code display window	# regswnd		-- Register display window	# msgswnd		-- Messages display window	def __init__(self):		self.scrn = curses.initscr()		curses.noecho()		self.scrn.keypad(1)		self.scrn_h, self.scrn_w = self.scrn.getmaxyx()		self.wnd = { }		self.draw_menubar()		self.setup_code_wnd()		self.setup_regs_wnd()		self.setup_msgs_wnd()		self.scrn.refresh()	def shutdown(self):		curses.endwin()	def draw_menubar(self):		mbtext = " F1-Jump To Address   F2-Jump To Cursor   F5-Go   F6-Auto-step   F7-Step   F10-Modify"		mbtext = mbtext + " "*(self.scrn_w - len(mbtext))		self.scrn.standout()		self.scrn.addstr(0, 0, mbtext)		self.scrn.standend()	def setup_code_wnd(self):		w = self.scrn_w - 20		h = self.scrn_h - 8		x = 0		y = 1		cwnd = self.scrn.subwin(h, w, y, x)		self.codewnd = CodeWindow(cwnd, x, y, w, h)				def setup_regs_wnd(self):		w = 21		h = self.scrn_h - 8		x = self.scrn_w - 21		y = 1		cwnd = self.scrn.subwin(h, w, y, x)		self.regswnd = RegistersWindow(cwnd, x, y, w, h)		def setup_msgs_wnd(self):		w = self.scrn_w		h = 8		x = 0		y = self.scrn_h - 8		cwnd = self.scrn.subwin(h, w, y, x)		self.msgswnd = MessageWindow(cwnd, x, y, w, h)		import Disassemblerdef test_screen():	s = Screen()	d = Disassembler.Disassembler()	s.run(d)