Recent questions tagged assembly

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

assembly - Does a function with instructions before the entry-point label cause problems for anything (linking)?

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635 views 1 answer

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

assembly - Why in NASM do we have to use square brackets ([ ]) to MOV to memory location?

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981 views 1 answer

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

assembly - What's the real meaning of $$ in nasm

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899 views 1 answer

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

assembly - Why don't x86 16-bit addressing modes have a scale factor, while the 32-bit version has it?

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1.1k views 1 answer

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

assembly - Why does my data section appear twice in the compiled binary? Ubuntu, x86, nasm, gdb, reaelf

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779 views 1 answer

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

assembly - Why "DIV EDX" in MASM always generates processor exception?

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839 views 1 answer

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

assembly - How do GNU assembler x86 instruction suffixes like ".s" in "mov.s" work?

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926 views 1 answer

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

assembly - Cannot call real mode C function from bootloader (NASM + GCC toolchain)

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713 views 1 answer

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

assembly - Hard to debug SEGV due to skipped cmov from out-of-bounds memory

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741 views 1 answer

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

assembly - What comes after QWORD?

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904 views 1 answer

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

assembly - What is the significance of operations on the register EAX having their own opcodes?

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683 views 1 answer

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

assembly - Should pointer comparisons be signed or unsigned in 64-bit x86?

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740 views 1 answer

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

assembly - Embed assembler to manipulate 64-bit registers in portable C++

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808 views 1 answer

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

assembly - On x64 Linux, what is the difference between syscall, int 0x80 and ret to exit a program?

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977 views 1 answer

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

assembly - Detail about MSR_GS_BASE in linux x86 64

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1.0k views 1 answer

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

assembly - Encoding ADC EAX, ECX - 2 different ways to encode? (arch x86)

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920 views 1 answer

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

assembly - What's the easiest way to determine if a register's value is equal to zero or not?

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745 views 1 answer

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

assembly - I don't understand how to use Interrupt 21, AH=0ah

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907 views 1 answer

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

assembly - What is the ".s" suffix in x86 instructions?

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780 views 1 answer

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

assembly - Are ARM instructuons SWI and SVC exactly same thing?

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866 views 1 answer

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

assembly - How to store a two-register mul result into memory

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776 views 1 answer

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

assembly - Does a memory barrier acts both as a marker and as an instruction?

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716 views 1 answer

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

assembly - Reverse byte order of EAX register

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923 views 1 answer

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

assembly - Convert string to int. x86 32 bit Assembler using Nasm

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1.4k views 1 answer

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

assembly - Why do x86 jump/call instructions use relative displacements instead of absolute destinations?

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775 views 1 answer

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

assembly - Cannot move 8 bit address to 16 bit register

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1.2k views 1 answer

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

assembly - What is the compatible subset of Intel's and AMD's x86-64 implementations?

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747 views 1 answer

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

assembly - Does Skylake need vzeroupper for turbo clocks to recover after a 512-bit instruction that only reads a ZMM register, writing a k mask?

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713 views 1 answer

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