Robertvokac (talk | contribs) No edit summary |
Robertvokac (talk | contribs) No edit summary |
||
| Line 19: | Line 19: | ||
* 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. | ||
== External links == | |||
https://wiki.osdev.org/CPU_Registers_x86 | |||
[[Category:X86]] | [[Category:X86]] | ||
Revision as of 17:50, 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.