why use 32-bit register when the data type is 64-bit?...

Instructions to copy the low byte from an int to a char: Simpler to just do a byte load?...

can we move content from smaller register to larger register...

Difference between an instruction and a micro-op...

Execute operations of the same instruction separately in an OoO processor...

Assembly move instruction seems to be useless...

What instructions can modern CPUs execute?...

Observing x86 register dependencies...

Why is modification of the program counter not a privileged instruction?...

In ARM64 assembly code, when is register 31 XZR versus SP?...

Why does nasm use 0x89 when it assembles a MOV instruction between registers?...

Single instruction to load shifted immediate value into a register?...

What's the difference between SRL and SRA?...

What do the MIPS load word left (LWL) and load word right (LWR) instructions do?...

Assembly Language - Subtract edx from ecx and place result in ebx...

`testl` eax against eax?...

instruction set emulator guide...

Why the immediate offset in the riscv's JAL instruction has bit order changed?...

Why the rA:rB is 2:8 instead of 2:f in the execution of a pushl instruction?...

How could I generate and execute machine code at runtime?...

Whats the difference between a normal instruction and a fast instruction in java (e.g. aload and fas...

What x86 instructions take two (or more) memory operands?...

How many asm-instructions per C-instruction?...

How can I experience "LFENCE or SFENCE can not pass earlier read/write"...

Intel 8080 instruction... what is the etymology of the "DAD" instruction mnemonic?...

While search each character of a string and change it in emu8086 how to end infinite loop?...

If write operation happens during exclusive cache access why is there data race?...

Does OCaml have a popcnt function?...

Calculating which compiler is faster in terms of cycling...

REX.W prefix on x86-64 MOV instruction with segment register...