Real time function view system and method
US6678847B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1999 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Apr 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3648
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for determining the operational state of a logic device having a plurality of shadow registers, each associated with one of a plurality of functional registers. Data stored in a functional register is, under selected conditions, also stored in an associated shadow register. These conditions include without limitation receipt by the functional register of predetermined event information such as an opcode, memory address or other information. Data in a given set of functional registers, e.g., registers making up pipeline stages in a microprocessor, may be stored in shadow registers simultaneously or sequentially when given data reaches a given register in the set. Additionally, data is stored in the shadow registers without interrupting execution cycles of the logic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.