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I made my VM think it has a CPU fan

Why bother? Some malware samples are known to do various checks to determine if they are running in a virtual machine. One of the common checks is to look for the presence of certain hardware components that are typically not emulated in virtualized environments. One such component is the CPU fan. One of the observed ways malware checks for the presence of a CPU fan is by looking for the Win32_Fan class in WMI: wmic path Win32_Fan get * And the reason they do this is they want to avoid runnin

PJ5 TTL CPU

Well, we did it… we cracked 4MIPS on our TTL CPU. I have to admit I’m both relieved and surprised. The key parts to achieving this was to decrease the latency for the instruction decode and also the flag register writing. The time to decode an instruction, perform a bit of math and then write to the flags was at around 270nS. With the changes we made, the instruction decode had a radical reworking and the flag writing had some big changes as well, means we go this down to under 200nS. Which m

Show HN: Zeekstd – Rust Implementation of the ZSTD Seekable Format

Zeekstd A Rust implementation of the Zstandard Seekable Format. The seekable format splits compressed data into a series of independent "frames", each compressed individually, so that decompression of a section in the middle of an archive only requires zstd to decompress at most a frame's worth of extra data, instead of the entire archive. Zeekstd makes additions to the seekable format by implementing an updated version of the specification, however, it is fully compatible with the initial ve

Xbox Game Pass was supposed to be the Netflix of gaming — what happened?

is editor-at-large and Vergecast co-host with over a decade of experience covering consumer tech. Previously, at Protocol, The Wall Street Journal, and Wired. Hello, and welcome to a special episode of Decoder! This is David Pierce, editor-at-large at The Verge. Nilay is off this week for a much-deserved break from what I can only describe as a pretty bleak news cycle. So I’m filling in for him, and the Decoder team thought this would be a good opportunity to switch gears a little bit from the