Interrupt and low-level programming support for expanding the application domain of statically-scheduled horizontal-microcoded architectures in embedded systems (CROSBI ID 533548)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Reshadi M., Gajski D.
engleski
Interrupt and low-level programming support for expanding the application domain of statically-scheduled horizontal-microcoded architectures in embedded systems
The increasing role of software in the embedded systems has made processor an important component in these systems. However, to meet the tight constraints of embedded application, it is often required to customize the processor for the application. Customizing instruction-based processors is difficult and very challenging. Design approaches based on statically-scheduled horizontal-microcoded architectures have been proposed to simplify the architecture customization. In these approaches, first the datapath is specified by the designer, and then the operations of the datapath are extracted automatically. Since the operations are statically scheduled in these architectures (i) low-level programming using assembly is impossible or very tedious ; and (ii) execution of programs cannot be interrupted arbitrarily. In this paper, we address the above problems. We show how to efficiently handle interrupts in such architectures and also propose an elegant way of controlling low-level hardware resources in a general way in C language. We also show that after adding interrupt and low-level programming we could use the above architectural style in a multi-core system to implement a complete MP3 decoder that can process 122 frames per second while the standard requirement is 38 frames per seconds.
embedded systems; horizontal-microcoded architectures; low-level programming
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Podaci o prilogu
1337-1342-x.
2007.
objavljeno
Podaci o matičnoj publikaciji
Proceedings - Design, Automation and Test in Europe, DATE
Podaci o skupu
Design, Automation and Test in Europe, DATE
predavanje
16.04.2007-20.04.2007
Nica, Francuska