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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kraemer, S. Leupers, R. Ascheid, G. Meyr, H. |
| Copyright Year | 2007 |
| Description | Author affiliation: Inst. for Integrated Signal Process. Syst., RWTH Aachen Univ. (Kraemer, S.; Leupers, R.; Ascheid, G.; Meyr, H.) |
| Abstract | SIMD instructions are used to speed up multimedia applications in high performance embedded computing. Vendors often use proprietary platforms which are incompatible with others. Therefore, porting software is a very complex and time consuming task. Moreover, lots of existing embedded processors do not have SIMD extensions at all. But they do provide a wide data path which is 32-bit or wider. Usually, multimedia applications work on short data types of 8 or 16-bit. Thus, only the lower bits of the data path are used and therefore only a fraction of the available computing power is exploited for such algorithms. This paper discusses the possibility to make use of the upper bits of the data path by emulating true SIMD instructions. These instructions are implemented purely in software using a high level language such as C. Therefore, the application can be modified by making use of source code transformations which are inherently portable. The benefit of this approach is that the computing resources are used more efficiently without compromising the portability of the code. Experiments have shown that a significant speedup can be obtained by this approach |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 137026 |
| Page Count | 6 |
| File Format | |
| ISBN | 9783981080124 |
| DOI | 10.1109/DATE.2007.364485 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-04-16 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | ESCI |
| Subject Keyword | Application software Hardware Signal processing algorithms Assembly High level languages Embedded system Costs Software algorithms Programming Manufacturing processes |
| Content Type | Text |
| Resource Type | Article |
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