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- Why isn’t movl from memory to memory allowed?
- Micro fusion and addressing modes
- Why doesn’t GCC use partial registers?
- How exactly do partial registers on Haswell/Skylake perform? Writing AL seems to have a false dependency on RAX, and AH is inconsistent
- What is the difference between MOV and LEA?
- What is the stack engine in the Sandybridge microarchitecture?
- What is the “FS”/”GS” register intended for?
- What is a Partial Flag Stall?
- Slow jmp-instruction
- why we can’t move a 64-bit immediate value to memory?
- What is an assembly-level representation of pushl/popl %esp?
- What is the point of SSE2 instructions such as orpd?
- Why flush the pipeline for Memory Order Violation caused by other logical processors?
- Why does Intel hide internal RISC core in their processors?
- Why isn’t the instruction pointer a normal register usable with MOV or ADD?
- What is instruction fusion in contemporary x86 processors?
- x86 32 bit opcodes that differ in x86-x64 or entirely removed
- Is a mov to a segmentation register slower than a mov to a general purpose register?
- How does the CPU know how many bytes it should read for the next instruction, considering instructions have different lengths?
- Is processor can do memory and arithmetic operation at the same time?
- A couple of questions about [base + index*scale + disp] and AT&T disp(base, index, scale)
- What does cltq do in assembly?
- 32-byte aligned routine does not fit the uops cache
- Assembly difference between [var], and var
- 8086 random number generator (not just using the system time)?
- Why are x86 registers named the way they are?
- Using 8-bit registers in x86-64 indexed addressing modes
- error A2070: invalid instruction operands
- Why is the Carry Flag set during a subtraction when zero is the minuend?
- how does push and pop work in assembly