COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Process status word
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Program status word
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Program status width
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process status width
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Detailed explanation-1: -The PSW (program status word) indicates your system’s general status. There are six different types of system PSWs that provide diagnostic information. Each one has an old and new value. The PSWs are as follows: Restart.
Detailed explanation-2: -The Program Status Word (PSW) contains status bits that reflect the current CPU state. The 8051 variants provide one special function register called PSW with this status information. The 251 provides two additional status flags, Z and N, that are available in a second special function register called PSW1.
Detailed explanation-3: -Program status word or PSW is a collection of all status bit conditions in the CPU at some time. It includes the status bits from the last ALU operation and it specifies the interrupts that are allowed to occur and whether the CPU is operating in that supervisor or user mode.
Detailed explanation-4: -In 8085 microprocessors, PSW stands for Program Status word. it is a 16-bit word, a combination of contents of the 8-bit flag register and the contents of an 8-bit Accumulator register.
Detailed explanation-5: -The Program Status Word or PSW is a collection of data 8 bytes (or 64 bits) long, maintained by the operating system. It keeps track of the current state of the system.