Recent questions tagged x86

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 64 - How to tell length of an x86-64 instruction opcode using CPU itself?

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561 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 Assembly: Division Floating Point Exception dividing by 11

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741 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 16 - Assembly multiplication of 16-bit x 32-bit => 48-bit

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782 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - What is the gcc cpu-type that includes support for RDTSCP?

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1.1k views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Data bus width and word size

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708 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 64 - Linux's security measures against executing shellcode

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572 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Write a Fizz program in assembly / Using C library

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552 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 64 - How is CR8 register used to prioritize interrupts in an x86-64 CPU?

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953 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Cannot read disk sectors in assembly language

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724 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - How to represent octal numbers in Assembly?

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809 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - The most correct way to refer to 32-bit and 64-bit versions of programs

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514 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - (NASM) (80x86) Bootloader NEEDS xor ax, ax

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713 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 assembly 16 bit vs 8 bit immediate operand encoding

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519 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - What is the difference between _mm512_load_epi32 and _mm512_load_si512?

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758 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Regarding cmp / jg, jle, etc in AT&T syntax assembly

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1.4k views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Conditional jump instructions in MSROM procedures?

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490 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 64 - Why am I seeing more RFO (Read For Ownership) requests using REP MOVSB than with vmovdqa

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493 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - SSE multiplication of 2 64-bit integers

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767 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - assembly cltq and movslq difference

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680 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - When using a mask register with AVX-512 load and stores, is a fault raised for invalid accesses to masked out elements?

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838 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 64 - Calling C function from x64 assembly with registers instead of stack

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736 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Assembly code to return smallest integer in array instead randomly returns either last or second to last number

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533 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Was there a P4 model with double-pumped 64-bit operations?

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481 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - Why jnz requires 2 cycles to complete in an inner loop

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394 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - The ordering of L1 cache controller to process memory requests from CPU

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446 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 multi-byte NOP and instruction prefix

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892 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - How does the indexing of the Ice Lake's 48KiB L1 data cache work?

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543 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

x86 - assembly check if number is even

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1.0k views 1 answer

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