从操作数堆栈获取所需的操作数。
如果任意一个操作数是浮点型的，则所有操作数都将按浮点型进行计算，并且结果也是浮点型的。
If any of the operands is a float, then all operands are evaluated as floats, and the results are floats.
当您根据操作数求值时，它将在操作数中的适当位置进行变更。
When you evaluate this against the operand, it will make the change in place in the operand.
它将第二个操作数内的寄存器与第三个操作数内的常量加在一起，并将结果存储在第一个操作数内指定的寄存器中。
It adds together the register in the second operand with the constant in the third operand, and stores the result in the register specified in the first operand.
如果操作数的大小未在指令中指定，这就意味着操作数的大小并不十分重要(例如逻辑指令)或者它的大小为32位。
If the size of the operand is not specified in the instruction, that means either that the size doesn't matter (as in logical instructions, for instance) or that it is using a 32-bit value size.
如果一个操作数是无符号整数，另外一个操作数是有符号整数，那么表达式的结果就是无符号整数。
If one of the operands is unsigned and the other is a signed int, the expression becomes an unsigned.
操作数的顺序与等价的中缀表达式中操作数的顺序一致。
The operands are in the same order that they would be in the equivalent infix expression.
输入操作数是充当指令输入操作数使用的C表达式。
The input operands are the C expressions that serve as input operands to the instructions.
在所有指令中，先是源操作数，然后才是目的操作数。
In any instruction, source comes first and destination follows.
简单的答复是，Python会根据需要将表达式中的所有操作数转换为最复杂的操作数的类型。
The simple answer is that Python converts all operands in an expression to the type of the most complex operand, as necessary.
第一个操作数是目标寄存器，第二个操作数是要加载的D -Form地址。
"The first operand is the destination register and the second is the D-Form address to load."
一种寄存器，可以存放某种操作的一个操作数，并且随后又用该操作的结果替换所存的操作数。
A register in which one operand of an operation can be stored and subsequently replaced by the result of that operation.
表达式是否合法取决于操作数的类型，而且合法的表达式其含义也由其操作数类型决定。
The type of the operand (s) determine whether an expression is legal and, if the expression is legal, determines the meaning of the expression.
源操作数和目的操作数的顺序。
双%%前缀，指明这是一个寄存器名。单%指明操作数。 这帮组GCC辨别操作数和寄存器。
There are two %'s prefixed to the register name. This helps GCC to distinguish between the operands and registers. operands have a single % as prefix.
乘法和除法的优先级高于加法操作，于是它们的操作数先于加法操作的操作数计算。
Multiplication and division have higher precedence than addition. Their operands are bound to the operator in preference to the operands to addition.
点操作符通过它的左操作数取得右操作数。
The dot operator fetches its right-hand operand from its left.
优先级规定的是操作数的结合方式，但并没有说明操作数的计算顺序。
Precedence specifies how the operands are grouped. It says nothing about the order in which the operands are evaluated.
从分析存储器操作数的存放地址入手，可以更好地理解寻址方式，准确访问存储器操作数。
We can understand the addressing mode better and call it correctly by analyzing the storing position of memory's data operation.
比较的过程是计算每个操作数，然后根据需要将操作数转换为相同的类型。
Comparisons are then made by evaluating each operand, and converting them as needed, so they are of the same type.
点操作符仅应用于类类型的对象：左操作数必须是类类型的对象，右操作数必须指定该类型的成员。
The dot operator applies only to objects of class type: the left-hand operand must be an object of class type; the right-hand operand must name a member of that type.
SFE在其右边接收一个操作数。操作数必须是一个可重定位段的段名。
SFE accepts a single operand to its right. The operand must be the name of a relocatable segment.
左侧操作数为字符串表达式，右侧操作数为包含匹配所用模式的字符串。
The left operand is a string expression, and the right operand is a string containing the pattern to be used for matching.
调整某个操作数的指数以使其匹配其他操作数指数的一个问题是，我们只有同样多的位数可用以表示尾数。
A problem with adjusting the exponent of one operand so that it matches the exponent of the other operand is that we only have so many bits to use to represent the mantissa.
如果源操作数和目标操作数相对应的位都是0，那么OR指令结果的每一个位都设置为0；
Each bit of the result of the OR instruction is set to 0 if both corresponding bits of the first and second operands are 0; otherwise, each bit is set to 1.
如果源操作数和目标操作数相对应的位都是0，那么OR指令结果的每一个位都设置为0；
Each bit of the result of the OR instruction is set to 0 if both corresponding bits of the first and second operands are 0; otherwise, each bit is set to 1.
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