Recent questions tagged assembly

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - How to produce a minimal BIOS hello world boot sector with GCC that works from a USB stick on real hardware?

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995 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Enable the boot loader to load the second sector of a USB

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616 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Where is VPERMB in AVX2?

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773 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Relative performance of x86 inc vs. add instruction

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1.1k views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Is there a specification of x86 I/O port assignment?

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937 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Why are x86 registers named the way they are?

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956 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - What is a microcoded instruction?

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640 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - What is the purpose of segment registers in x86 protected mode?

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864 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - How does the GCC implementation of modulo (%) work, and why does it not use the div instruction?

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740 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Why did GCC generate mov %eax,%eax and what does it mean?

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761 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - What does ordered / unordered comparison mean?

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1.0k views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - What does `dword ptr` mean?

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1.3k views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - How to tell the length of an x86 instruction?

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754 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - NASM Error Parsing, Instruction Expected

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927 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - How to write an absolute target for a near direct relative call/jmp in MASM

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1.0k views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - How to code a far absolute JMP/CALL instruction in MASM?

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1.1k views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - How to read image file and display on screen in windows tasm dosbox

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736 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Why can't I move directly a byte to a 64 bit register?

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934 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Counting 1 bits (population count) on large data using AVX-512 or AVX-2

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752 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - How do vararg functions find out the number of arguments in machine code?

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767 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - tasm: operand type does not match

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1.2k views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Unexpectedly poor and weirdly bimodal performance for store loop on Intel Skylake

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580 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - What is the latency and throughput of the RDRAND instruction on Ivy Bridge?

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664 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Which is a better write barrier on x86: lock+addl or xchgl?

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742 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - What do the brackets mean in x86 asm?

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921 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - What are IN & OUT instructions in x86 used for?

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728 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Does it make any sense to use the LFENCE instruction on x86/x86_64 processors?

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684 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

assembly - Turn float into string

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699 views 1 answer

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