18 lines
461 B
Markdown
18 lines
461 B
Markdown
## ISA
|
|
### Most instructions follow this format
|
|
| 6bit | 1bit | 1bit | 2bit | 3bit | 3bit |
|
|
| ----- | --------- | ---- | --------------- | ------------ | ---- |
|
|
| OpCod | Direction | Size | Addressing mode | Register ID | Specific addressign mode|
|
|
|
|
| Register ID | Register Name|
|
|
|:-------------:|:-------------:|
|
|
|0 0 0 |AL AX|
|
|
|0 0 1 |CL CX|
|
|
|0 1 0 |DL DX|
|
|
|0 1 1 |BL BX|
|
|
|1 0 0 |AH SP|
|
|
|1 0 1 |CH BP|
|
|
|1 1 0 |DH SI|
|
|
|1 1 1 |BH DI|
|
|
|