overflow flag造句
造句與例句
手機(jī)版
- The flags such as carry flag, overflow flag and zero flag.
- For example, jz uses the zero flag, jc uses the carry flag and jo uses the overflow flag.
- This is in contrast to the overflow flag which provides a mechanism for comparing the values as signed integer values.
- The overflow flag would then be set so the program can be aware of the problem and mitigate this or signal an error.
- The overflow flag is typically changed by all arithmetic operations, including compare instructions ( equivalent to a subtract instruction without storing the result ).
- For both instructions, the Parity / Overflow flag ( bit 2 ) is set according to the current state of the IFF2 flip-flop.
- The SO pin, on 6500 family CPUs that have it, sets the Overflow flag in the P register, which can be tested using BVC / BVS instructions.
- Internally, the overflow flag is usually generated by an exclusive or of the internal carry " into " and " out of " the sign bit.
- Along with a carry flag, a sign flag and an overflow flag, the zero flag is used to check the result of an arithmetic operation, including bitwise logical instructions.
- Some processors support a hardware overflow flag that can generate an exception on the occurrence of an overflow, but it is usually too late to salvage the proper result at this point.
- It's difficult to see overflow flag in a sentence. 用overflow flag造句挺難的
- Therefore, it is useful to check the overflow flag after adding or subtracting numbers that are represented in two's complement form ( i . e . they are considered signed numbers ).
- The overflow flag is thus set when the most significant bit ( here considered the sign bit ) is changed by adding two numbers with the same sign ( or subtracting two numbers with opposite signs ).
- In many processor architectures, the overflow flag is cleared by bitwise operations ( and, or, xor, not ), possibly including shifts and rotates, but it may also be left undefined by these.
- As the sign bit is the same as the most significant bit of a number " considered " unsigned, the overflow flag is " meaningless " and normally ignored when unsigned numbers are added or subtracted.
- When the clock pulse occurs, the sum will be transferred to storage and, if the resulting sum is too large ( i . e ., it is larger than the ALU's output word size ), an arithmetic overflow flag will be set.
- In computer processors, the "'overflow flag "'( sometimes called V flag ) is usually a single bit in a system status register used to indicate when an arithmetic overflow has occurred in an operation, indicating that the signed two's-complement result would not fit in the number of bits used for the operation ( the ALU width ).
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