Instruction format for program control type data processing systems
US4825355A · kind A · utility
35Cited by
12References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1986 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Aug 22, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An instruction having two operands includes a field specifying the bit length of a source operand and a field specifying the bit length of data to be operated upon by the execution unit. Based on size information stored in these fields, the operand bit length is modified, which avoids need for modification of the bit length of an operand by use of a macro instruction at the time of execution of an operation based on the two operands. Consequently, the program execution speed can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.