Atari 800

Boots the Atari 800XL to the Atari BASIC READY prompt: type Atari BASIC directly, e.g. 10 PRINT"HI":GOTO 10 then RUN. Sound is fully supported and plays when a program drives POKEY; the page starts muted, so click Sound to hear it. A small open Atari 800 Sound Demo cartridge config is also available if you want a steady tone. Add ?debug, or click Debug, to step the 6502, set breakpoints and inspect memory. Click the screen first so it captures the keyboard.

Boots the Atari 800XL to the Atari BASIC READY prompt: type Atari BASIC directly, e.g. 10 PRINT"HI":GOTO 10 then RUN. Sound is fully supported and plays when a program drives POKEY; the page starts muted, so click Sound to hear it. A small open Atari 800 Sound Demo cartridge config is also available if you want a steady tone. Add ?debug, or click Debug, to step the 6502, set breakpoints and inspect memory. Click the screen first so it captures the keyboard.