QPC Versions
------------

1.00  First released version

1.01  SER1 corrected
      COM3/COM4 support implemented
      VGA-palette control implemented
      *** Needs at least SMSQ/E V2c76

1.02  Bug in overflow-flag handling of some 68000 commands corrected
      Initialises the mouse again after exiting a DOS-shell
      Can be installed on ZIP-drives as the drive letter's not checked

1.03  Problems and bug (introduced in 1.02) in copy protection fixed
      Can now really be installed on ZIP-drives
      Emulates IRQ 5 (was overwritten by the segment-overflow-exception which
        uses the same interrupt vector. Oh god, it's a PC!)
      *** Needs at least installation program V1.01

1.04  Bug in flag handling of some 68000 commands fixed - SQRT(100) is now 10

1.10  VESA support!
      IRQ 5 emulation now optional because it slows down QPC
        (especially when using QLiberator programs)
      *** Needs at least SMSQ/E V2d76

1.11  Now supports even more VESA-cards

1.12  Improved initialisation of the serial ports
      Improved serial RTS handling
      Fixed serial problems on slower machines
      *** Needs at least SMSQ/E V2.77

1.13  Added assembler functions to access PC-memory and ports
      Added new SBASIC commands: QPC_VER$, QPC_MSPEED,
        QPC_PEEK[B,W], QPC_POKE[B,W], QPC_IN[B,W], QPC_OUT[B,W]
      *** Needs at least SMSQ/E V2.79

1.14  Implemented internal floppy cache. Access's now VERY fast!
      *** Needs at least SMSQ/E V2.80

1.15  The floppy disc driver now switches back to the old one-sector mode when
      accessing a track with bad sectors on it.

1.16  Changed hard disc handler to improve compatibility with PCs whose
      BIOSes don't match the specifications.

1.20  Totally rewrote the communication (was similar to the QXL, now it's
      completely different):
      - general speed is increased by at least 1% (Wow... ;-) )
      - up to *FOUR* faster and more reliable serial ports
      - more reliable keyboard
      - improved mouse movements (at least I've that feeling)
      - the par device can be connected to either LPT1, LPT2 or LPT3
      Floppy discs can be formated with less than 80 tracks
      Bug in CMPM command fixed
      *** Needs at least SMSQ/E V2.83

1.21  Corrected bug in QPC_PEEK[B,W] and QPC_IN[B,W] commands
      (nobody complained, so does anybody use them???)

1.30  On ordinary pentiums up to 15% faster

1.40  Completely rewritten screen driver. Now there's a general interface with
      several "plug-ins" (just internal ones). Currently there are 3 plug-ins
      implemented:
        - EGAVGA:  All normal EGA and VGA resolutions (from 512x256 to 800x600)
        - VESA16:  All 16-colours vesa modes (used to emulate 4/8 colours)
        - VESA256: All 256-colours vesa modes (used to emulate 4/8 colours)
      VESA256 is the prefered driver because it's up to *twice* as fast as
      the other ones! With this driver higher resolutions are also supported on
      graphics cards that don't provide the old 16 colours modes any more.
      Exiting a DOS-Shell is now very reliable as the video mode's completely
      initialised again.
      Handling of serial interrupts > 7 now fixed.
      Now very fast WIN-format routine.
      *** Needs at least SMSQ/E V2a84

