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* Lower halves of the 32-bit registers can be used as four 16-bit data registers: AX, BX, CX and DX. | * Lower halves of the 32-bit registers can be used as four 16-bit data registers: AX, BX, CX and DX. | ||
* Lower and higher halves of the above-mentioned four 16-bit registers can be used as eight 8-bit data registers: AH, AL, BH, BL, CH, CL, DH, and DL. | * Lower and higher halves of the above-mentioned four 16-bit registers can be used as eight 8-bit data registers: AH, AL, BH, BL, CH, CL, DH, and DL. | ||
[[Category:X86]] | |||
Revision as of 17:27, 9 November 2024
What are the two types of registers
32-bit and 16-bit registers
Register Categories of registers
- General registers
- Control registers
- Segment registers
Categories of general registers
- Data registers
- Pointer registers
- Index registers
Data registers
There are four data 32-bit data registers: EAX, EBX, ECX, EDX
- Lower halves of the 32-bit registers can be used as four 16-bit data registers: AX, BX, CX and DX.
- Lower and higher halves of the above-mentioned four 16-bit registers can be used as eight 8-bit data registers: AH, AL, BH, BL, CH, CL, DH, and DL.