Just install this one extension for BIOS development — AMI Aptio (CIF/SDL/VEB), EDK2 (INF/DSC/DEC/FDF/UNI/VFR), and ACPI ASL, all covered.

Features

Syntax Highlighting

Supports 10 BIOS development file formats:

Format	Extensions	Source
AMI Aptio CIF	`.cif`	Component description
AMI Aptio SDL	`.sdl`	Software definition
AMI Aptio VEB	`.veb`	Project manifest
EDK2 DSC	`.dsc`, `.dsc.inc`	Platform description
EDK2 DEC	`.dec`	Package declaration
EDK2 FDF	`.fdf`, `.fdf.inc`	Flash description
EDK2 INF	`.inf`	Module information
EDK2 UNI	`.uni`	Unicode string tables
EDK2 VFR	`.vfr`, `.sd`, `.hfr`	BIOS setup forms
ACPI ASL	`.asl`, `.dsl`, `.iiii`, `.asi`, `.esl`	ACPI source language

GUID Generator

Press Ctrl+Shift+[ to insert a random GUID. Select an existing GUID and press Ctrl+Shift+[ to convert it between formats (uppercase/lowercase, hyphenated/continuous/C struct).

ASL Hover Documentation

Hover over any ASL keyword to see its ACPI specification reference — syntax, arguments, description, and examples.

Code Snippets

Prefix	File Type	Description
`uefi-hfile`	C/H	UEFI header file template
`uefi-cfile`	C	UEFI C file template
`error`	C/H	EFI_ERROR check with Print and return
`!error`	C/H	!EFI_ERROR macro
`assert`	C/H	ASSERT_EFI_ERROR macro
`debug`	C/H	DebugPrint with function/line
`print`	C/H	Print with function/line
`uefi-enum`	C/H	Enum typedef template
`uefi-const`	C/H	CONST pointer declarations
`uefi-inf-lib`	INF	Library INF template
`uefi-inf-drv`	INF	Driver INF template