CN1100292C - 指令控制替换方法及其装置 - Google Patents
指令控制替换方法及其装置 Download PDFInfo
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- CN1100292C CN1100292C CN 98120943 CN98120943A CN1100292C CN 1100292 C CN1100292 C CN 1100292C CN 98120943 CN98120943 CN 98120943 CN 98120943 A CN98120943 A CN 98120943A CN 1100292 C CN1100292 C CN 1100292C
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指令段替换方式控制域14编码 | 替换方式 | 指令段替换方式控制域14编码 | 替换方式 |
000 | 每周期执行1次 | 100 | 每条指令执行结束时执行1次 |
001 | 每2周期执行1次 | 101 | 保留 |
010 | 每3周期执行1次 | 110 | 保留 |
011 | 每4周期执行1次 | 111 | 非替换执行 |
指令段 | 操作域 | 编码功能 | 编码 | 执行时刻 |
1 | NOP | 空 | ||
1 | LD | 取数 | 101-0100 | 单周期替换执行 |
2 | INC | 取数地址加1 | 10100 | 单周期替换执行 |
4 | FAU | Y1+Y2 | 00-00100-10100 | 当周期执行 |
指令段 | 操作域 | 编码功能 | 编码 | 执行时刻 |
1. | IFPA | I转换成浮点数 | 00-10100 | 当周期执行 |
2. | NOP | 空 | ||
3. | NOP | 空 | ||
4. | NOP | 空 |
指令段 | 操作域 | 编码功能 | 编码 | 执行时刻 |
1. | FAU | I转浮点数结果加X1 | 10-00111-11100 | 当周期执行 |
2. | STACK | 存贮器端口上的数据进栈 | 01-10100 | 单周期替换执行 |
3. | NOP | 空 | ||
4. | NOP | 空 |
指令段 | 操作域 | 编码功能 | 编码 | 执行时刻 |
1. | NOP | 空 | ||
2. | NOP | 空 | ||
3. | NOP | 空 | ||
4. | FMUL | Y1+Y2结果乘Y2 | 10-00101-10000 | 当周期执行 |
指令段 | 操作域 | 编码功能 | 编码 | 执行时刻 |
1. | DCOM | 计算A>B | 0010-01100-11001 | 当周期执行 |
2. | LD_NE | LD替换操作清除 | 100001 | 当周期执行 |
3. | INC_NE | INC替换操作清除 | 100010 | 当周期执行 |
4. | NOP | 空 |
指令段 | 操作域 | 编码功能 | 编码 | 执行时刻 |
1. | COND1 | 判断A>B是否为真 | 0010100 | 当周期执行 |
2. | DAU | A=A+B | 1011-01100-11000 | 当周期执行 |
3. | COND2 | 判断A>B是否为假 | 1010100 | 当周期执行 |
4. | DAU | A=A-B | 1010-01100-11000 | 当周期执行 |
指令段 | 操作域 | 编码功能 | 编码 | 执行时刻 |
1. | FMUL | I+X1结果乘X2 | 10-00101-11000 | 当周期执行 |
2. | STACK_NE | STACK替换操作清除 | 100000 | 当周期执行 |
3. | NOP | 空 | ||
4. | NOP | 空 |
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98120943 CN1100292C (zh) | 1998-10-12 | 1998-10-12 | 指令控制替换方法及其装置 |
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98120943 CN1100292C (zh) | 1998-10-12 | 1998-10-12 | 指令控制替换方法及其装置 |
Publications (2)
Publication Number | Publication Date |
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CN1250909A CN1250909A (zh) | 2000-04-19 |
CN1100292C true CN1100292C (zh) | 2003-01-29 |
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Application Number | Title | Priority Date | Filing Date |
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CN 98120943 Expired - Lifetime CN1100292C (zh) | 1998-10-12 | 1998-10-12 | 指令控制替换方法及其装置 |
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CN (1) | CN1100292C (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7472259B2 (en) * | 2000-12-06 | 2008-12-30 | Analog Devices, Inc. | Multi-cycle instructions |
CN101996066B (zh) * | 2009-08-10 | 2014-03-19 | 北京多思科技发展有限公司 | 用于乱序编码指令的指令译码装置及方法 |
CN102681819B (zh) * | 2011-03-10 | 2015-09-23 | 炬力集成电路设计有限公司 | 实现灵活且低成本的指令替换方法及装置 |
CN108446242A (zh) * | 2018-03-07 | 2018-08-24 | 珠海昇生微电子有限责任公司 | 一种固化代码的替换方法及系统 |
CN111124497B (zh) * | 2018-10-11 | 2022-03-29 | 上海寒武纪信息科技有限公司 | 运算方法、装置、计算机设备和存储介质 |
CN111124496B (zh) * | 2019-12-25 | 2022-06-21 | 合肥中感微电子有限公司 | 一种多周期指令处理方法、处理器和电子设备 |
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1998
- 1998-10-12 CN CN 98120943 patent/CN1100292C/zh not_active Expired - Lifetime
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