这个寄存器的默认值是一个空字符串。
这些单元与基准时间寄存器相同，并且两个线程的PURR值的总和等于基准时间寄存器的值。
The units are the same as the time base register and the sum of the PURR values for both threads is equal to time base register.
如果我们希望访问这个结构体的第二个元素，就需要在寄存器中的值上加上8。
If you want to access the second member of the structure, you'll need to add 8 to the value in the register.
来自一个寄存器范围的预期响应值的数据类型。
The data type for the expected response values from a register range.
由于已经正确设置了(模拟)寄存器的值，IS r会正常进行处理，就仿佛它是一个真正的中断。
Since you have already set the (simulated) register values appropriately, the ISR will process normally as if it was a real interrupt.
实际上应该复制这些设备的寄存器的值。
现有JMM 表明易失性的读和写是直接和主存打交道的，这样避免了把值存储到寄存器或者绕过处理器特定的缓存。
The existing JMM says that volatile reads and writes are to go directly to main memory, prohibiting caching values in registers and bypassing processor-specific caches.
但这意味着当函数进行函数调用时，所有在可变寄存器中的值都有可能会被重写。
However, that means that when a function makes a function call, it should expect that all of the values in volatile registers will be overwritten.
在这些情况下，所使用的值是在寄存器的首选槽中的那个。
In these cases, the value that is used is the one in the register's preferred slot.
ADDRESS -OF专用寄存器中的值集合将仅在特定程序或方法调用期间存在。
Values set in ADDRESS-OF special registers persist only for the span of the particular program or method invocation.
例如，通过调用一个可以为SESSION_USER特殊寄存器提供值的函数来设置变量，使用它取回当前用户的部门编号。
For example, a variable could be set by invoking a function that supplies the value of the SESSION_USER special register to fetch the department number for the current user.
但由于基线条件并不调用任何其他函数，所以无需从堆栈框架加载链接寄存器——值还在原处。
However, since the base case doesn't call any other functions, you don't need to load the link register from the stack frame — the value is still there.
这个示例程序还输出了当时通用寄存器的值。
The sample program has also dumped the general purpose register values in this case.
同理，浮点值是通过浮点寄存器1到13传递的。
Likewise, floating-point values are passed through the floating-point registers 1 through 13.
本地变量空间用作该函数的通用存储空间，寄存器保存区用于保存函数所使用的非可变寄存器的值。
The local variable space is used as a general storage area for the function, and the register save area is used to save the values of non-volatile registers that the function USES.
最后，原始值加载至寄存器4。
在本例中，假设在函数中传递的值就处于寄存器的首选槽内。
In this case, you are to assume that the value passed in the function is in the register's preferred slot.
几个SPU指令只能处理这些寄存器值中的一个。
It turns out that several SPU instructions deal with only one of the register's values.
当这个函数完成时，返回值会通过寄存器3返回，函数本身使用blr指令退出。
When the function is completed, the value is returned through register 3, and the function exits using the BLR instruction.
需要用返回值加载寄存器3并执行函数尾声(epilogue)来恢复堆栈框架并返回。
You load register 3 with the return value and perform the function epilogue to restore the stack frame and return.
很快有了汇编语言，它将1和0抽象成基本的机器指令，例如用值y加载寄存器x。
Quickly came assembly language, which abstracted away the ones and zeros to provide rudimentary machine instructions such as load register X with value y.
对于静态语句，CURRENTOPTIMIZATIONPROFILE专用寄存器的值根据以下顺序确定。
For dynamic statements, the value of the CURRENT OPTIMIZATION PROFILE special register is determined by the following order.
[requestcommand]的长度也是一个字节，它的值基于正被寻址的寄存器的类型设置。
[Request command] is also 1 byte long, and its value is set based on the type of registers being addressed. For reading register values.
对于动态sql语句，SQL路径为CURRENTPATH特殊寄存器的值。
For dynamic SQL statements, the SQL path is the value of the CURRENT path special register.
将TB寄存器的值读入 64位变量tbr 中。
Read the value of the TB register into the 64-bit variable tbr.
tb_orig_stamp：系统引导时tb寄存器的值。
现在您可以看到为什么简化abi之前的规则要求只使用寄存器3到寄存器12：其他寄存器都是非易失性的，需要堆栈空间来保存这些寄存器的值。
Now you can see why our earlier rules for the simplified ABI required that only registers 3 through 12 should be used: the others are non-volatile and require stack space to save them!
如果该值是 MAGIC_NUMBER，就从所传递的结构中获取数据/中断寄存器的值，并按照这个结构的值来产生中断。
If it is MAGIC_NUMBER, get the data/interrupt register values from the structure passed and generate the interrupt as per the structure values.
当spu视图从一个空的邮箱中读取信息时，它会停止执行，直到有值写入自己的内存映射寄存器中为止。
When an SPU tries to read from an empty mailbox, it will stop execution until some value is written to its memory-mapped register.
其原因是如果您加载的是单一值，那么您就会希望它位于寄存器的首选槽。
The reason for this is that if you are loading a single value, you probably want it in the preferred slot of the register.
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