EMUAPC DEMO description

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)

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
- 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.