> For the complete documentation index, see [llms.txt](https://cerulean-blue.gitbook.io/halyde-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cerulean-blue.gitbook.io/halyde-docs/ansi-compatibility.md).

# ANSI Compatibility

List of ANSI escape sequences that are currently available in Halyde and other related information.

All the commands listed here are only what is capable with the OpenComputers GPU. Most commands outside color are unlisted due to these constraints.

A command must always be on the same string for it to work properly. If a command is cut off, or separated into two strings, this can lead to undefined behavior.

### [Select Graphic Rendition](https://en.wikipedia.org/wiki/ANSI_escape_code#Select_Graphic_Rendition_parameters)

Command: `\x1b[*m` where \* are the arguments.

#### [Colors](https://en.wikipedia.org/wiki/ANSI_escape_code#Colors)

* [x] [3-bit and 4-bit color](https://en.wikipedia.org/wiki/ANSI_escape_code#3-bit_and_4-bit) (Arg ID 30-37, 40-47, 90-97, 100-107)
* [x] [8-bit color](https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit) (Args `38;5;n`)
* [x] [24-bit color](https://en.wikipedia.org/wiki/ANSI_escape_code#24-bit) (Args `38;2;r;g;b`)
* [ ] [Reverse video](https://en.wikipedia.org/wiki/Reverse_video) or invert (Arg ID 7)

#### Resetting

* [x] Reset all attributes (Arg ID 0)
* [x] Reset 3-bit color (Arg ID 39, 49)

***

### Cursor movement

* [ ] Cursor Up (`\x1b[*A`)
* [ ] Cursor Down (`\x1b[*B`)
* [ ] Cursor Forward (`\x1b[*C`)
* [ ] Cursor Back (`\x1b[*D`)
* [ ] Cursor Next Line (`\x1b[*E`)
* [ ] Cursor Previous Line (`\x1b[*F`)
* [ ] Cursor Horizontal Absolute (`\x1b[*G`)
* [ ] Cursor Position (`\x1b[*H`)
* [ ] Horizontal Vertical Position (`\x1b[*f`)
* [ ] Save Current Cursor Position (`\x1b[s`)
* [ ] Restore Saved Cursor Position (`\x1b[u`)

It is recommended to use `terminal.setCursorPos` instead of using ANSI escape codes (see [Terminal](/halyde-docs/libraries-and-apis/terminal.md)).

***

### Other [CSI commands](https://en.wikipedia.org/wiki/ANSI_escape_code#Control_Sequence_Introducer_commands)

* [ ] Erase in Display (`\x1b[*J`)
* [ ] Erase in Line (`\x1b[*K`)
* [ ] Scroll Up (`\x1b[*S`)
* [ ] Scroll Down (`\x1b[*T`)

***

### [C0 ](https://en.wikipedia.org/wiki/ANSI_escape_code#C0_control_codes)[Control Codes](https://en.wikipedia.org/wiki/ANSI_escape_code#C0_control_codes)

* [x] Bell (`\x07` or `\a` )
* [ ] Backspace (`\x08`)
* [x] Tab (`\x09` or `\t` )
* [x] Line Feed (`\x0A` or `\n`)
* [x] Carriage Return (`\x0D` or `\r`)