ASSYNT: efficient assembly code generation for digital signal processors starting from a data flowgraph

Author

Desmet, Dirk ; Genin, Dominique

Author_Institution

EDC-Mentor Graphics Corp, Leuven, Belgium

Volume

3

fYear

1993

fDate

27-30 April 1993

Firstpage

45

Abstract

The authors describe the architecture of a code generator for digital signal processors, embedded in a data-flow-based specification environment. The data-flow-based specification and implementation techniques make it possible to generate highly efficient assembly code. Versions for TMS320C30 and TMS320C40 and DSP56000 currently exist. The automatic synthesis of high-level descriptions expressed in the signal flowgraph (SFG) can be guided by the user by means of implementation directives and external libraries. The authors discuss the internal data structures, based on a mixed control and data flowgraph, as well as the data-flow synthesis techniques used, involving scheduling, mapping, and memory management. Special attention is paid to the handling of hierarchical SFGs, pointer arithmetic, and the implementation of delay lines.<>

Keywords

assembly language; automatic programming; data structures; delay lines; digital arithmetic; digital filters; flowcharting; formal specification; hierarchical systems; scheduling; signal processing; storage management; DSP56000; TMS320C30; TMS320C40; assembly code generation; data-flow-based specification; delay lines; digital signal processors; external libraries; high-level descriptions; implementation directives; internal data structures; mapping; memory management; pointer arithmetic; scheduling;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on

Conference_Location

Minneapolis, MN, USA

ISSN

1520-6149

Print_ISBN

0-7803-7402-9

Type

conf

DOI

10.1109/ICASSP.1993.319431

Filename

319431