Translate

Archives

Two UEFI Screenshot Utilities Added To UEFI-Utilities-2019

In this post I discuss two new utilities that I have recently released for taking full or partial screenshots from within the UEFI shell.

UEFI Utility ShowBGRT Updated to Include Display Image Option and More

This post describes the changes and enhancements which I recently made to my ShowBGRT utility which is a simple tool to extract information and the boot logo image using the ACPI Boot Graphics Resource Table.

UEFI Utility DisplayBMP Updated to Support More Formats and Scrolling

This post details the changes I made to my DisplayBPM UEFI shell utility to support more formats, better image header checks, and vertical scrolling of screen whenever necessary to fully display the image.

Simple CPUID Utility For UEFI Shell

This post discusses the CPUID opcode which is available for IA32 and IA64/AMD64 platforms. The source code for a simple cpuid utility is also provided.

Accessing ACPI SLIC From UEFI Shell

In this post, I discuss activation of Microsoft Windows using the SLIC mechanism, and provide source code for a UEFI shell utility that exposes all available SLIC information.