Margaret Bloom

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Margaret Bloom has asked 21 questions and find answers to 168 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

Necessity of J vs. JAL (and JR vs. JALR) in MIPS assembly
MSR vs MMIO/PCIe configuration space
Get total avaiable RAM from the GRUB2 multiboot info structure
What is the difference between ABI and CPU architecture type?
How does the processor differ between OpCodes and Data? [duplicate]
Why does using the "register" keyword makes my code faster?
Address of local variable on stack
There is any way to trigger a legacy mode for RDTSC?
Extracting value from an MPX bounds register into a general purpose register
Difference between "-fno-pie" and "-no-pie"