
                 EMUAPC DEMO DESCRIPTION 
                       DOS VERSION

Emulator EMUAPC DEMO emulates the 400/800, 800XL, 65XE, 130XE Atari 8-bit models.
Minimum requirements: i486/Pentium with 8MB RAM

EMUAPC DEMO emulates:
Atari 800 switches: 64KB RAM, Atari OS rev.A
Atari 800XL switches: 64KB RAM, Atari OS rev.B, Atari Basic rev.B
Atari 65XE switches: 64KB RAM, Atari OS rev.B, Atari Basic rev.C
Atari 130XE switches: 128KB RAM, Atari OS rev.B, Atari Basic rev.C

Features of EMUAPC DEMO:

- All 6502 opcodes (all unofficial instructions)
- All Antic opcodes.
- All CTIA modes
- All GTIA modes
- All interrupts:

  NMI:
    DLI - Display List Interrupt
    VBI - Vertical Blank Interrupt

  IRQ:
    T1 - Timer 1
    T2 - Timer 2
    T4 - Timer 4
    SIR - if Serial Input Ready
    ODN - if Output Data Needed
    XD - if eXmitend Data
    K - Keyboard
    BREAK - Break 
    and
    RESET - Reset

- All PM (Player/Missile) graphics (collision detection, priority control etc.)
- Fast memory interface to manage memory banks (memory limits to 128KB RAM)

  EMUAPC DEMO memory interface increase performance 
  for intensive banks switching

- Separate Antic access to extended memory for 130 XE model
- Full POKEY emulation (random register, cycle-exact interrupts)

  EMUAPC DEMO cycle-exact POKEY interrupts gives great digi-sounds

- Full POKEY sound emulation: Fast (low quality) and Precision (high quality)
  (size of pokey sound buffer can be chaneged)

  EMUAPC DEMO high quality POKEY emulator  generates sounds 
  like original Atari

- Fast and easy files loading system

- Two disk drives in density S, E i D 
  (Eight virtual disk images may be loaded from one drive)
- Disk-drive communication via low-level PERCOM blocks

  Emulated opcodes:
    83 - status
    82 - read sector
    80 - write sector
    87 - write sector with verification
    33 - format (density S, D)
    34 - format (density E)
    78 - read density
    79 - set density.

- Bad sectors (Bad sector is recognized by 10 first characters of sector 
  equal "BAD SECTOR")
- Fast and Slow date transmition mode (track buffer)
- Protect mode for all virtual disk images
- Sector counter
- Auto-detect file formats:
  *.xex,*.exe,*.com,*.atr,*.xfd,*.dc3,*.dcm,*.vol.

  EMUAPC DEMO loading system wrote Atari executable files on virtual 
  disk images with EMUAPC boot loader.

- One joystick emulation on PC keyboard or PC joystick
- Software graphics modes (for selected GTIA modes)
- Pseudo-artifacts (graphics mode 0xF only)
- PC screen resolution: 320x240, 360x240, 360x270
- Synchronization to 50Hz or vertical blank frequency

  EMUAPC DEMO vertical blank synchronization gives screen scrolles 
  like original Atari

- User graphics interface (backgroud bitmap may be change)
- Special effects with Reset/Restart/Help/Exit
- Sound cards and mixer setup (Sound Blaster cards only)

  EMUAPC DEMO mixer setup allows you adjust bass and treble.

- Internal build-in EMUAPC Atari palette or external read from user files
- Screen snapshots to PCX files

  Emulator EMUAPC DEMO emulates banks switching, full sounds with noise and 
  cycle-exact POKEY interrupts in real time.

(C) Komires Sp. z o.o.
www.komires.com
