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1. 发明授权

US07167968B2 Storage pre-alignment and EBCDIC, ASCII and unicode basic latin conversions for packed decimal data 有权
标题翻译：用于打包十进制数据的存储预对齐和EBCDIC，ASCII和unicode基本拉丁转换
公开(公告)号：US07167968B2
公开(公告)日：2007-01-23
申请号：US10834637
申请日：2004-04-29
申请人： Fadi Y. Busaba , Steven R. Carlough , Mark A. Check , Christopher A. Krygowski , John G. Rell, Jr. , Frank Tanzi
发明人： Fadi Y. Busaba , Steven R. Carlough , Mark A. Check , Christopher A. Krygowski , John G. Rell, Jr. , Frank Tanzi
IPC分类号： G06F12/06
CPC分类号： G06F9/30025 , G06F9/30032 , G06F9/30036 , G06F9/30043 , G06F9/3816 , G06F9/3824 , G06F12/0886
摘要： A method of pre-aligning data for storage during instruction execution improves performance by eliminating the cycles otherwise required for data alignment. The method can convert data between ASCII and Packed Decimal format, and between Unicode Basic Latin and Packed Decimal format. Conversion to Packed Decimal format is needed for decimal hardware in a microprocessor designed to generate decimal results. Converting from Packed Decimal to ASCII and Unicode Basic Latin is necessary to report Decimal Arithmetic results in a required format for the application program. To further improve performance, all available write ports in the fixed point unit (FXU) are utilized to reduce the number of cycles necessary to store results. To prevent data fetching of the unused destination data from slowing down instruction execution, the destination locations are tested for storage access exceptions, but the data for these operands are not actually fetched. A single read request from the FXU to the operand buffers effectively reads the entire destination address (up to 8 double-words of data) in a single cycle.
摘要翻译：在指令执行期间预先对准用于存储的数据的方法通过消除数据对准所需的周期来提高性能。该方法可以在ASCII和Packed Decimal格式之间以及Unicode Basic Latin和Packed Decimal格式之间转换数据。转换为打包十进制硬件需要十进制格式，用于生成十进制结果的微处理器。从包装十进制转换为ASCII和Unicode基本拉丁文需要以应用程序所需的格式报告十进制算术结果。为了进一步提高性能，利用固定点单元（FXU）中的所有可用写入端口来减少存储结果所需的周期数。为了防止数据获取未使用的目标数据缓慢的指令执行，目标位置被测试存储访问异常，但是这些操作数的数据实际上并没有被提取。从FXU到操作数缓冲区的单个读取请求在单个周期中有效读取整个目标地址（最多8个双字的数据）。

2. 发明申请

US20050246507A1 Storage pre-alignment and EBCDIC, ASCII and unicode basic latin conversions for packed decimal data 有权
标题翻译：用于打包十进制数据的存储预对齐和EBCDIC，ASCII和unicode基本拉丁转换
公开(公告)号：US20050246507A1
公开(公告)日：2005-11-03
申请号：US10834637
申请日：2004-04-29
申请人： Fadi Busaba , Steven Carlough , Mark Check , Christopher Krygowski , John Rell , Frank Tanzi
发明人： Fadi Busaba , Steven Carlough , Mark Check , Christopher Krygowski , John Rell , Frank Tanzi
IPC分类号： G06F9/30 , G06F9/312 , G06F9/315 , G06F9/38 , G06F12/00 , G06F12/08
CPC分类号： G06F9/30025 , G06F9/30032 , G06F9/30036 , G06F9/30043 , G06F9/3816 , G06F9/3824 , G06F12/0886
摘要： A method of pre-aligning data for storage during instruction execution improves performance by eliminating the cycles otherwise required for data alignment. The method can convert data between ASCII and Packed Decimal format, and between Unicode Basic Latin and Packed Decimal format. Conversion to Packed Decimal format is needed for decimal hardware in a microprocessor designed to generate decimal results. Converting from Packed Decimal to ASCII and Unicode Basic Latin is necessary to report Decimal Arithmetic results in a required format for the application program. To further improve performance, all available write ports in the fixed point unit (FXU) are utilized to reduce the number of cycles necessary to store results. To prevent data fetching of the unused destination data from slowing down instruction execution, the destination locations are tested for storage access exceptions, but the data for these operands are not actually fetched. A single read request from the FXU to the operand buffers effectively reads the entire destination address (up to 8 double-words of data) in a single cycle.
摘要翻译：在指令执行期间预先对准用于存储的数据的方法通过消除数据对准所需的周期来提高性能。该方法可以在ASCII和Packed Decimal格式之间以及Unicode Basic Latin和Packed Decimal格式之间转换数据。转换为打包十进制硬件需要十进制格式，用于生成十进制结果的微处理器。从包装十进制转换为ASCII和Unicode基本拉丁文需要以应用程序所需的格式报告十进制算术结果。为了进一步提高性能，利用固定点单元（FXU）中的所有可用写入端口来减少存储结果所需的周期数。为了防止数据获取未使用的目标数据缓慢的指令执行，目标位置被测试存储访问异常，但是这些操作数的数据实际上并没有被提取。从FXU到操作数缓冲区的单个读取请求在单个周期中有效读取整个目标地址（最多8个双字的数据）。

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