"X86 Assembly" register

Source: Internet
Author: User

8086 Register:

The concept of a register without an address refers to the memory

Data registers:

AX (AH AL) accumulator

BX (BH BL) Base Register

CX (CH CL) Count register

DX (DH DL) data register

Segment Register: (Storage of various segments of the first address)

CS Code Snippet registers the first address of the instruction in memory that is currently being processed (Physical address = (cs<<4) +ip)

DS Data Segment Register current data in memory of the segment header address (Physical address = (ds<<4) +[si, DI, BX])

ES additional segment Register

SS Stack Segment Register the segment header address of the current stack segment (Physical address = (ss<<4) +bp)

Pointer and variable address registers:

Offset address of the top of the current stack in the SP stack pointer stack segment

Base address of the BP base pointer current data in the stack segment (offset)

SI Variable address register-data segment offset

DI Address Register-Additional segment offset

instruction pointers and Flag registers:

IP offset address of the instruction currently being processed in memory

FLAGS

"X86 Assembly" register

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