General registers : usually used to store general data, including AX, BX, CX, DX, which can be divided into two 8-bit registers that can be used independently,
| 16th place | 8 high | 8 low |
|---|---|---|
| AX | AH | AL |
| BX | BH | BL |
| CX | CH | CL |
| DX | DH | DL |
When carrying out data transfer or calculation, pay attention to the number of bits of the two operation objects of the instruction should be the same
The data range that an 8-bit register can store is 0 ~ 28-1.