Title:
COMPILER
Document Type and Number:
WIPO Patent Application WO/2003/032157
Kind Code:
A1
Abstract:
A compiler capable of facilitating calculation description in a source program and simplifying the source program description so as to reduce generation of bugs in calculation according to the block floating method by software. When a source program is given with description of calculation formula using a block floating variable, a calculation formula performing addition is extracted from the source program. A portion related to an addition in the extracted calculation formula is expanded as an instruction code constituting the processing performing addition using a data block corresponding to a plurality of block floating variables to be added. The expanded instruction code is embedded in an object program, thus creating and outputting an object program.
Inventors:
KOBAYASHI SHIRO (JP)
Application Number:
PCT/JP2002/009508
Publication Date:
April 17, 2003
Filing Date:
September 17, 2002
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
KOBAYASHI SHIRO (JP)
KOBAYASHI SHIRO (JP)
International Classes:
G06F7/00; G06F9/45; G06F5/01; (IPC1-7): G06F9/45; G06F7/00
Foreign References:
| JPH07325710A | 1995-12-12 | |||
| JPH04184624A | 1992-07-01 | |||
| JPH06232757A | 1994-08-19 | |||
| US6161217A | 2000-12-12 |
Other References:
HITOSHI OHMURO, KAZUNORI MANO: "DualSpeech onsei fugoka softwear", NTT R&D THE TELECOMMUNICATION ASSOCIATION, vol. 47, no. 5, 10 May 1998 (1998-05-10), JAPAN, pages 549 - 554, XP002967696
YAMAMOTO SHIROKURA: "C++ nyumonkoza try the C++ dai 4 kai", C MAGAZINE SOFTBANK CORP., vol. 10, no. 4, 1 October 1992 (1992-10-01), JAPAN, pages 110 - 117, XP002967697
MARUTA NISHITANI: "Signal processor to sono oyo", 6 August 1988, SHOKODO CO. LTD., pages: 27 - 38, XP002967698
See also references of EP 1429244A4
KOBAYASHI S ET AL.: "A block-floating-point system for multiple datapath DSP", SIGNAL PROCESS SYSTEMS, 8 October 1998 (1998-10-08), pages 427 - 436
YAMAMOTO SHIROKURA: "C++ nyumonkoza try the C++ dai 4 kai", C MAGAZINE SOFTBANK CORP., vol. 10, no. 4, 1 October 1992 (1992-10-01), JAPAN, pages 110 - 117, XP002967697
MARUTA NISHITANI: "Signal processor to sono oyo", 6 August 1988, SHOKODO CO. LTD., pages: 27 - 38, XP002967698
See also references of EP 1429244A4
KOBAYASHI S ET AL.: "A block-floating-point system for multiple datapath DSP", SIGNAL PROCESS SYSTEMS, 8 October 1998 (1998-10-08), pages 427 - 436
Attorney, Agent or Firm:
Mori, Tetsuya (Yusen Iwamotocho Bldg. 8th Floor 3-3,
Iwamoto-cho 2-chom, Chiyoda-ku Tokyo, JP)
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