Margaret Bloom

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Margaret Bloom has asked 21 questions and find answers to 151 problems.

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Margaret Bloom questions

How do *move elimination* slots work in Intel CPU?
Why is this specpoline not working on Kaby lake?
What are the microarchitectural details behind MSBDS (Fallout)?
How does the indexing of the Ice Lake's 48KiB L1 data cache work?
What does the PCOMMIT instruction do?
Can the LSD issue uOPs from the next iteration of the detected loop?
Can the A20 line still be masked off on Haswell and successors?
Why flush the pipeline for Memory Order Violation caused by other logical processors?
How are MMIO, IO and PCI configuration request routed and handled by the OS in a NUMA system?
Understanding the impact of lfence on a loop with two long dependency chains, for increasing lengths

Margaret Bloom answers

Assembly infinite loop (jmp -2)
CS: override on access to global variables in IDA output, like mov eax, cs:x?
Docker and -march native
How does the `asm()` function works in C language?
bare metal assembly program on Zynq without Vivado/SDK
Trying to understand simple disassembled code from g++
Triple fault does not put system into reset
ASSUME directive using masm
Label offsets in nasm
Playing .wav files on DOSBox's Sound Blaster device