发明名称 |
Personal computer apparatus for block transfer of bit-mapped image data |
摘要 |
A computer that provides data to a video display using a bitmap display memory organization and bitplane addressing. Separate control is provided for two bitplane backgrounds and for eight reusable and easily movable sprites. Additional logic allows for dynamically-controllable interobject priority and collision detection among data in each of the bitplane backgrounds and sprites. A coprocessor provides for video beam-synchronized changes to data in registers, freeing the main processor for general purpose computing tasks. A block image transfer is provided to rapidly copy data in large blocks from one memory location to another. In hold-and-modify mode, color output circuitry holds the value for a previously displayed pixel while bitplane data modifies those values, allowing for simultaneous display of a greatly increased number of colors.
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申请公布号 |
US4874164(A) |
申请公布日期 |
1989.10.17 |
申请号 |
US19860886796 |
申请日期 |
1986.07.18 |
申请人 |
COMMODORE-AMIGA, INC. |
发明人 |
MINER, JAY G.;DEAN, DAVE;DECUIR, JOSEPH C.;NICHOLSON, RONALD H.;TANAKA, AKIO |
分类号 |
G06F3/153;A63F13/00;G09G5/00;G09G5/02;G09G5/24;G09G5/34;G09G5/36;G09G5/39;G09G5/393;G09G5/395 |
主分类号 |
G06F3/153 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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