Known bugs and restrictions of Emu48 V1.10
------------------------------------------

- input cursor blink frequency on stack view is wrong when a key is
  hold down
- the POWERCTRL register (0x109) isn't emulated
- bit 3 [UCK] of the BAUD register (0x10D) isn't emulated
- the bits of the SRQ registers (0x118,0x119), except the KDN bit,
  aren't emulated
- the baudrates 1920, 3840, 7680 and 15360 aren't emulated on most
  operating systems
  Windows 95a         1920, 3840, 7680 work, 15360 fail
  Windows 98          all baudrates fail
  Windows NT4.0 SP3   all baudrates fail
- System-RPL commands VERYVERYSLOW, VERYSLOW and SLOW depends on PC
  speed (are realized as simple down counter in ROM)
- in all original KML scripts Color 7 is missing in the LCD section
- because of correcting the RGB order in SetLcdColor() the LCD
  background color may be wrong in some KML scripts
- display updating differs from the real machine
- screen VBL counter values may skip after large display operations
  like turning on or updating the whole display
- read on an unconfigured address (open data bus) will not show the
  same value like a real calculator
- the G(X) hardware signals BEN and DA19 aren't fully supported,
  because the emulator don't use a multiplexed AR18 / NCE3 data line
  -> all programs that run on a real calculator will run as well,
  programs with incorrect DA19 / BEN handling may run on the
  emulator and will crash on a real calculator
- no beeper support with OUT command -> all programs that aren't
  use the "=makebeep" subroutine, like alarm wake up, have no sound
- beeper emulation, ATTN key doesn't work,
  Windows 9x: plays only default sound event or standard system beep
- no infrared printer support
- Shell OS: clock isn't synchronized with real time

03/11/99 (c) by Christoph Gieelink, cgiess@swol.de
