CN102043609B - 一种浮点协处理器及相应的配置、控制方法 - Google Patents
一种浮点协处理器及相应的配置、控制方法 Download PDFInfo
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- CN102043609B CN102043609B CN2010105866479A CN201010586647A CN102043609B CN 102043609 B CN102043609 B CN 102043609B CN 2010105866479 A CN2010105866479 A CN 2010105866479A CN 201010586647 A CN201010586647 A CN 201010586647A CN 102043609 B CN102043609 B CN 102043609B
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Abstract
Description
CONF[7:0] | OP7 | OP6 | OP5 | OP4 | OP3 | OP2 | OP1 | OP0 |
00000001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
00000011 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
00000111 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
00001111 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
00011111 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |
00111111 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
01111111 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
11111111 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
其他 | / | / | / | / | / | / | / | / |
操作 | 运算 | 操作码 | 结果寄存器 | 操作数0 | 操作数1 |
sin $5, $1 | $5 = sin($1) | SIN | 5 | 1 | 0 |
cos $6, $2 | $6 = cos($2) | COS | 6 | 2 | 0 |
mul $7,$5,$5 | $7 = $5*$5 | MUL | 7 | 5 | 5 |
mul $8, $6, $6 | $8 = $6*$6 | MUL | 8 | 6 | 6 |
add $8, $7, $8 | $8 = $7 + $8 | ADD | 8 | 7 | 8 |
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CN102043609A CN102043609A (zh) | 2011-05-04 |
CN102043609B true CN102043609B (zh) | 2013-11-20 |
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US20130326199A1 (en) * | 2011-12-29 | 2013-12-05 | Grigorios Magklis | Method and apparatus for controlling a mxcsr |
CN102546178A (zh) * | 2011-12-29 | 2012-07-04 | 北京握奇数据系统有限公司 | 一种生成密文的方法及装置 |
FR3087907B1 (fr) | 2018-10-24 | 2021-08-06 | St Microelectronics Grenoble 2 | Microcontroleur destine a executer un traitement parametrable |
FR3087908B1 (fr) * | 2018-10-24 | 2021-08-06 | St Microelectronics Grenoble 2 | Microcontroleur capable d'executer de facon acceleree un traitement parametrable |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6134653A (en) * | 1998-04-22 | 2000-10-17 | Transwitch Corp. | RISC processor architecture with high performance context switching in which one context can be loaded by a co-processor while another context is being accessed by an arithmetic logic unit |
CN1983161A (zh) * | 2005-09-28 | 2007-06-20 | 英特尔公司 | 用于扩展函数的增强型浮点单元 |
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US20070300042A1 (en) * | 2006-06-27 | 2007-12-27 | Moyer William C | Method and apparatus for interfacing a processor and coprocessor |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6134653A (en) * | 1998-04-22 | 2000-10-17 | Transwitch Corp. | RISC processor architecture with high performance context switching in which one context can be loaded by a co-processor while another context is being accessed by an arithmetic logic unit |
CN1983161A (zh) * | 2005-09-28 | 2007-06-20 | 英特尔公司 | 用于扩展函数的增强型浮点单元 |
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