Recent questions tagged assembly

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assembly - Which is faster, imm64 or m64 for x86-64?

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

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assembly - Assembler use of segment register

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

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1 answer 1.0k views

assembly - Confused by [ebp-0xc] instead of [ebp-4] in Art of Exploitation example

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

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1 answer 1.0k views

assembly - CMP in x86 with parentheses and address

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

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1 answer 941 views

assembly - Why do x86 FP compares set CF like unsigned integers, instead of using signed conditions?

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

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assembly - how many whole numbers in IEEE 754

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

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assembly - x86 instructions to set parity, overflow, & sign flags

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

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1 answer 916 views

assembly - Loading an xmm from GP regs

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

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1 answer 1.7k views

assembly - Error: operand size mismatch for `movq'

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

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1 answer 917 views

assembly - How does the bios know what type of BPB is present?

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

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1 answer 920 views

assembly - Local labels in GNU assembler; gdb printing backtrace as though labels are functions

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

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1 answer 780 views

assembly - Sign or Zero Extension of address in 64bit mode for MOV moffs32?

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

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1 answer 988 views

assembly - Is Zero Register 'zr' in aarch64 essentially ground?

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

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1 answer 749 views

assembly - Why does Clang do this optimization trick only from Sandy Bridge onward?

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

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1 answer 879 views

assembly - What is the "EU" in x86 architecture? (calculates effective address?)

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

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1 answer 846 views

assembly - What would happen if a system executes a part of the file that is zero-padded?

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

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1 answer 772 views

assembly - How to use bits in a byte to set dwords in ymm register without AVX2? (Inverse of vmovmskps)

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

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1 answer 979 views

assembly - Reason to use the carry bit and the overflow bit

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

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1 answer 823 views

assembly - How to know if a register is a "general purpose register"?

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

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1 answer 789 views

assembly - Interrupts, Instruction Pointer, and Instruction Queue in 8086

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

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1 answer 782 views

assembly - weird behaviour of code (corrupted draw) when using own keyboard interrupt `int 09h` handler

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

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1 answer 827 views

assembly - Does referencing constants without a dollar sign have a distinct meaning?

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

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1 answer 722 views

assembly - "C variable type sizes are machine dependent." Is it really true? signed & unsigned numbers ;

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

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1 answer 681 views

assembly - Interrupting instruction in the middle of execution

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

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1 answer 871 views

assembly - How do 8-bit and 16-bit processors access more RAM with two registers?

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

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1 answer 850 views

assembly - Displaying characters with DOS or BIOS

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

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1 answer 717 views

assembly - Does using mix of pxor and xorps affect performance?

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

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1 answer 933 views

assembly - What is the difference between .word and .equ in MIPS?

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

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1 answer 1.6k views

assembly - 8086 random number generator (not just using the system time)?

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

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1 answer 936 views

assembly - dollar-terminated strings

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

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1 answer 835 views

assembly - How to execute a call instruction with a 64-bit absolute address?

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

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1 answer 768 views

assembly - OsDev syscall/sysret and sysenter/sysexit instructions enabling

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

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1 answer 736 views

assembly - Creating a simple multiboot kernel loaded with grub2

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

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1 answer 1.0k views

assembly - How to move 128-bit immediates to XMM registers

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

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1 answer 833 views

assembly - Is it possible to use 32 bits registers/instructions in real mode?

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

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