# Altair 8800 / Teletype Emulator

[![Current Crates.io Version](https://img.shields.io/crates/v/teletype.svg)](https://crates.io/crates/teletype)
[![Downloads badge](https://img.shields.io/crates/d/teletype.svg)](https://crates.io/crates/teletype)

This is an Altair 8800 / 88-SIO / teletype emulator, written with my [8080 emulator](https://crates.io/crates/intel8080) library.
The 8080 processor speed is 2.1 Mhz.

To install:

```text
cargo install teletype
```

You can configure the ROM file and the amount of RAM you want in the config file:
~/.config/teletype/config.toml

Example for Microsoft Basic 3.2:

```text
[memory]
rom = "/Users/nicolasb/4kbas32.bin"
ram = 0xFFFF
```

```
MEMORY SIZE?
TERMINAL WIDTH?
WANT SIN? Y

62166 BYTES FREE

BASIC VERSION 3.2
[4K VERSION]

OK
```

The escape key opens a menu, from which you can:

- Quit the emulator without having to press CTRL-C
- Auto-type a BASIC file from your disk. This "injects" the text of the file into the teletype and is very convenient to load a BASIC program, since BASIC 3.2 does not provide disk operation commands.
- Load or save a snapshot (altair.snapshot)

Pressing ESC a second time quits the menu.

On [this page](https://altairclone.com/downloads/basic/BASIC%20Programs/4K%20BASIC/) you will find several basic programs. I personally love seawar4k.bas and lander4k.bas.