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1. 发明公开

EP0485776A2 A method for executing graphics pixel packing instructions in a data processor 失效
标题翻译：一种用于在数据处理设备中执行的图形像素打包指令的方法。
公开(公告)号：EP0485776A2
公开(公告)日：1992-05-20
申请号：EP91118128.7
申请日：1991-10-24
申请人： MOTOROLA, INC.
发明人： Diefendorff, Keith Everett , Sooch, Janet H.
IPC分类号： G06F15/72 , G06F5/00 , G06F7/48
CPC分类号： G06T15/005 , G06F5/00 , G06F7/48 , G06F7/49973
摘要： A method for executing a graphics pixel packing instruction in a data processing system (20). An instruction sequencer (22) transfers graphics instruction to a graphics execution unit (29). In response to receiving a pixel packing instruction, the graphics execution unit (29) transfers a selected number of data operands from the communications bus (36). One of the selected data operands comprises a plurality of bits representative of one or more fixed point values, each fixed point value represents the intensity of one of the color channels within a pixel. The graphics execution unit (29) truncates each of the fixed point values to a predetermined number of bits to generate a corresponding number of truncated bit fields, and packs the truncated bits fields into a predetermined position in a second data operand. The second data operand accumulates the truncated color channel values into pixel format, to provide an intermediate value, which is rotated to provide a result data operand.
摘要翻译：一种用于在数据处理系统（20）执行的图形像素打包指令方法。一个指令定序器（22）的图形指令传送到图形执行单元（29）。响应于接收到一个像素打包指令，图形执行单元（29）传送从所述通信总线（36）数据操作数的选定数量。一个所选择的数据操作数包括位代表一个或多个固定点值，每个固定点值darstellt一个像素内的色彩通道中的一个的强度的复数。图形执行单元（29）截断每个固定点值的比特的预定数目的，以产生截短的比特字段的相应数量，并且包的截去比特字段到在第二数据操作数中的预定位置。第二个操作数数据累积截短颜色通道值到像素格式，在中间值，以提供，所有这些被旋转以提供一个结果数据操作数。

2. 发明授权

EP0631228B1 Accurate digital divider 失效
标题翻译：精确的数字部门工作
公开(公告)号：EP0631228B1
公开(公告)日：2000-02-02
申请号：EP94304389.3
申请日：1994-06-17
申请人： QUESTECH LIMITED
发明人： Billing, Robert
IPC分类号： G06F7/52
CPC分类号： G06F7/535 , G06F7/49973 , G06F2207/5354 , G06F2207/5356

3. 发明公开

EP0631228A1 Accurate digital divider 失效
标题翻译： Genaues数字化Divisionswerk。
公开(公告)号：EP0631228A1
公开(公告)日：1994-12-28
申请号：EP94304389.3
申请日：1994-06-17
申请人： QUESTECH LIMITED
发明人： Billing, Robert
IPC分类号： G06F7/52
CPC分类号： G06F7/535 , G06F7/49973 , G06F2207/5354 , G06F2207/5356
摘要： A digital divider (2,3) for forming the quotient (Q) of two numbers (A,B) includes means (4,5) providing values (Q + 1, Q - 1) of the quotient with possible rounding errors added to or subtracted therefrom. Selector switching means (7) is arranged to select one of the values (Q, Q + 1, Q - 1) under the control of a logic circuit operating according to the following rules.
摘要翻译：用于形成两个数字（A，B）的商（Q）的数字除法器（2,3）包括提供商的值（Q + 1，Q-1）的装置（4,5），其中可能的舍入误差被添加到或从其中减去。选择器切换装置（7）被布置为在根据以下规则操作的逻辑电路的控制下选择值（Q，Q + 1，Q-1）中的一个。

4. 发明公开

EP0485776A3 A method for executing graphics pixel packing instructions in a data processor 失效
标题翻译：一种在数据处理器中执行图形像素包装指令的方法
公开(公告)号：EP0485776A3
公开(公告)日：1993-07-07
申请号：EP91118128.7
申请日：1991-10-24
申请人： MOTOROLA, INC.
发明人： Diefendorff, Keith Everett , Sooch, Janet H.
IPC分类号： G06F15/72 , G06F5/00 , G06F7/48
CPC分类号： G06T15/005 , G06F5/00 , G06F7/48 , G06F7/49973
摘要： A method for executing a graphics pixel packing instruction in a data processing system (20). An instruction sequencer (22) transfers graphics instruction to a graphics execution unit (29). In response to receiving a pixel packing instruction, the graphics execution unit (29) transfers a selected number of data operands from the communications bus (36). One of the selected data operands comprises a plurality of bits representative of one or more fixed point values, each fixed point value represents the intensity of one of the color channels within a pixel. The graphics execution unit (29) truncates each of the fixed point values to a predetermined number of bits to generate a corresponding number of truncated bit fields, and packs the truncated bits fields into a predetermined position in a second data operand. The second data operand accumulates the truncated color channel values into pixel format, to provide an intermediate value, which is rotated to provide a result data operand.

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