- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄365371 > PowerPC 603 (Motorola, Inc.) 32-Bit Microprocessor(32位微處理器) PDF資料下載
參數(shù)資料
| 型號： | PowerPC 603 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 32-Bit Microprocessor(32位微處理器) |
| 中文描述： | 32位微處理器（32位微處理器） |
| 文件頁數(shù)： | 36/54頁 |
| 文件大小： | 325K |
| 代理商： | POWERPC 603 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁當(dāng)前第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁
RISC Microprocessor Division
Page 36
Completion of floating-point unit instructions is a potential source of stalls. Due to the single write-back
port on the floating point register file, multiple instructions trying to write back floating-point results will
have to do so in a sequential manner. This will typically happen in matrix math where math operations
occur in parallel with loads that initialize registers for subsequent math operations.
The code segment above depicts such a scenario. Adjacent load and fmadd instructions have no
register dependencies nor do they require the same execution unit. Therefore, each pair can dispatch
together, execute in parallel, and even finish (update rename registers) in parallel. However, due to the
single write back port, this code has an effective throughput of only a single instruction per clock. If this
code is part of a larger code segment that includes integer instructions, then it is possible to achieve a
greater instruction throughput by intermixing integer instructions (from elsewhere in the code sequence)
with these floating-point instructions. This will allow the integer execution and write-back to overlap
with the floating-point write-back, thereby improving the overall instruction throughput on the entire
code segment.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PowerPC 604e | 32-Bit Microprocessor(32位微處理器) |
| PowerPC 604 | 32-Bit Microprocessor(32位微處理器) |
| PPC7447RX1000NB | PPC7457RX1000NB |
| PPC7447RX867NB | PPC7457RX1000NB |
| PPC7457RX1000NB | PPC7457RX1000NB |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| POWERPLUG15W | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AC/DC POWER SUPPLY |
| POWERPLUG24W | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AC/DC POWER SUPPLY |
| POWERPLUS 2C 2500MAH | 制造商:Energizer Battery Company 功能描述: |
| POWERPLUS 2D 2500MAH | 制造商:Energizer Battery Company 功能描述: |
| POWERPLUS 4AAA 850MAH | 制造商:Energizer Battery Company 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。