This paper investigates the implications of using modern superscalar processors in the safety-critical domain. Firstly, a description of current certification practice and devices is given as background. This is followed by an exposition of the certification argument for a processor when used in a safetycritical application. Throughout the presentation of the argument two types of modern processor are considered, commercial off-the-shelf (COTS) processors and purpose-designed bespoke devices. This allows the elaboration of positive and negative features of processors that can be used as part of the selection (for COTS) or design (for bespoke) process.
Bate et al. REF discuss the usage of modern processors in safety critical applications.
Use of modern processors in safety−critical applications
The Computer Journal
Computer Science