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1 sty 2024 · Learn about the x86 architecture, its registers, memory, and CPU operation modes. Find out how to access and use the general-purpose, segment, and flags registers in different modes and sizes.
- X86 Assembly/16, 32, and 64 Bits
Registers. 16-bit. The registers found on the 8086 and all...
- X86 Assembly/SSE
Registers are prefixed by $ in GDB. x short for examine,...
- FPU
The FPU has an array of eight registers that can be accessed...
- Calculate
x86 Assembly quick links: registers • move • jump •...
- X86 Assembly/16, 32, and 64 Bits
The x86 architectures were based on the Intel 8086 microprocessor chip, initially released in 1978. Intel Core 2 Duo, an example of an x86-compatible, 64-bit multicore processor AMD Athlon (early version), a technically different but fully compatible x86 implementation. x86 (also known as 80x86 [3] or the 8086 family [4]) is a family of complex instruction set computer (CISC) instruction set ...
It's a pure 64-bit architecture so all normal registers are 64-bit, no 32-bit or smaller version is available. There are a lot of registers in it: 128 general-purpose integer registers r0 through r127, each carrying 64 value bits and a trap bit. We'll learn more about the trap bit later.
x86 Assembly Guide. Contents: Registers | Memory and Addressing | Instructions | Calling Convention. This guide describes the basics of 32-bit x86 assembly language programming, covering a small but useful subset of the available instructions and assembler directives.
W grupie rejestrów procesora x86 wyróżniamy trzy rejestry związane ze stosem: SS -przechowuje adres stosu (nie dotyczy płaskiego modelu pamięci!), ESP -będący adresem wierzchołka stosu oraz EBP, którego funkcję omówimy poniżej.
7 gru 2023 · Registers. 16-bit. The registers found on the 8086 and all subsequent x86 processors are the following: AX, BX, CX, DX, SP, BP, SI, DI, CS, DS, SS, ES, IP and FLAGS. These are all 16 bits wide. On DOS and up to 32-bit Windows, you can run a very handy program called "debug.exe" from a DOS shell, which is very useful for learning about 8086.
Registers are the fastest kind of memory available in the machine. x86-64 has 14 general-purpose registers and several special-purpose registers. This table gives all the basic registers, with special-purpose registers highlighted in yellow.
