JPS6419387A - Bit map processor - Google Patents
Bit map processorInfo
- Publication number
- JPS6419387A JPS6419387A JP62174613A JP17461387A JPS6419387A JP S6419387 A JPS6419387 A JP S6419387A JP 62174613 A JP62174613 A JP 62174613A JP 17461387 A JP17461387 A JP 17461387A JP S6419387 A JPS6419387 A JP S6419387A
- Authority
- JP
- Japan
- Prior art keywords
- bit
- memory
- register
- length
- general purpose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To improve the processing performance of a general purpose processing device by constituting the general purpose register having the length which is twice the data width of the memory and computing and processing the bit mapped memory with an arbitrary bit length from a specified location. CONSTITUTION: The word data read from a bit map memory 1 are set to a general purpose register GR5 constituted with the length which is twice the data transfer width to the memory. Then, a computing element 20 only computes for the amount equivalent to the bit length specified by a bit width register WNR10 against the bit location specified by a source bit address register SBA8 and a destination bit address register DBA9. The updating of the memory and the data register, which is caused when a computing is done beyond the word boundary, is detected by testing a boundary detecting flag 14 during the computation of a bit address and the memory is accessed based on the detection result.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62174613A JPH0697393B2 (en) | 1987-07-15 | 1987-07-15 | Bitmap processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62174613A JPH0697393B2 (en) | 1987-07-15 | 1987-07-15 | Bitmap processor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6419387A true JPS6419387A (en) | 1989-01-23 |
JPH0697393B2 JPH0697393B2 (en) | 1994-11-30 |
Family
ID=15981652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62174613A Expired - Lifetime JPH0697393B2 (en) | 1987-07-15 | 1987-07-15 | Bitmap processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0697393B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0325684A (en) * | 1989-06-23 | 1991-02-04 | Nec Corp | Picture drawing controller |
JPH0470987A (en) * | 1990-07-04 | 1992-03-05 | Mitsubishi Electric Corp | Parallel data processing system |
WO2005116982A1 (en) * | 2004-05-25 | 2005-12-08 | Ssd Company Limited | Data processing unit, drawing apparatus and pixel packer |
JP2019208715A (en) * | 2018-06-01 | 2019-12-12 | 株式会社藤商事 | Game machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61232491A (en) * | 1985-04-09 | 1986-10-16 | 日本電気株式会社 | Pattern drawing control system for bit map display unit |
-
1987
- 1987-07-15 JP JP62174613A patent/JPH0697393B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61232491A (en) * | 1985-04-09 | 1986-10-16 | 日本電気株式会社 | Pattern drawing control system for bit map display unit |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0325684A (en) * | 1989-06-23 | 1991-02-04 | Nec Corp | Picture drawing controller |
JPH0470987A (en) * | 1990-07-04 | 1992-03-05 | Mitsubishi Electric Corp | Parallel data processing system |
WO2005116982A1 (en) * | 2004-05-25 | 2005-12-08 | Ssd Company Limited | Data processing unit, drawing apparatus and pixel packer |
JP2008501126A (en) * | 2004-05-25 | 2008-01-17 | 新世代株式会社 | Data processing device, drawing device, and pixel packer |
JP2019208715A (en) * | 2018-06-01 | 2019-12-12 | 株式会社藤商事 | Game machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0697393B2 (en) | 1994-11-30 |
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