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A program visible register is a register that is addressable during applications programming or systems programming. Those that don't are called invisible registers.
What are program visible registers?
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What chip of a CPU reads program instructions?
The instruction register.
Can the program counter be eliminated by using the top of the stack as a program count?
No. The program counter must be stored in a dedicated register. The stack is in working memory and you cannot operate on working memory; all values must be moved into a register in order to operate upon them. It makes no sense to move a program counter in and out of memory unless performing a context switch and you can't use a stack for context switching; a priority queue must be used for this. Keep in mind that the address of the top of the stack has to be moved in and out of its register during a context switch. It doesn't make sense to load the stack register from a priority queue before you can determine where the program counter value is. It's easier to keep all state information in the same place in the priority queue where it belongs.
Where does global static local register variables free memory and C Program instructions get stored?
* These are all implementation defined. Access to `register' specified indentifiers should be as fast as possible, so the compiler may place the value in a machine register. However, the compiler is free to treat a `register' declaration as an `auto' declaration. * Where free memory is maintained is an OS specific concept. Instructions are generally stored in code segement. Local Variables are stored in Stack. Register variables are stored in Register. Global & static variables are stored in data segment. The memory created dynamically are stored in Heap And the C program instructions get stored in code segment.
What is a global declaration?
A global declaration of a function or variable is a declaration that is at the global scope of the program, not inside another function. This means that the name will be visible within all functions in the program.
What is the difference between register stacks and memory stacks?
Registers are normally memory spaces internal to the processor or very close to it. They are generally faster than main memory and will be small in size and will hold very frequently used data.Register stacks are a set of such register memory locations.Memory refers to computers main memory outside CPU. It is used to keep data and programs. Memory stack is a series of memory locations.The difference between register stack and memory stack is...
What is program visible register?
the registers that are used during programming and are specified directly by the instructions.
How do you program royal cash register?
i want to program my cash register
What register is used to enable the paging mechanism in the 80386 80486 Pentium Pentium Pro Pentium 4 and Core2 microprocessors?
The register used to enable the page mechanism in the microprocessor 80386 through core 2 microprocessors is the program visible register.
How do you program a royal cms 482 cash register?
i want to program my cash register
How do you program alpha 580 cash register?
program taxes on a alpha 580 cash register?
How do you program a cash register sharp XE A21s?
how to program sharp cash register xe-a21s
Does a cash register display have to be visible to the customer?
Yes, the cash register display is supposed to be visible to the customer. This helps the customer counter check and will help him not to be overcharged.
What is user visible registers?
A user visible register (UVR) are the registers visible to programmers. Basically this means that the programmer can only make use of these registers (UVA).These registers includes general purpose or special purpose registers.Example: Data Register, & Address Register.
How do you program a cash register sharp XE-A21s?
Visit www.cashregistersonline.com. You can purchase a program manual or owners manual for $10.00 each. I have an Esper 7810 cash register and it uses the same owners / program manual as the 7540.
How can you register Spore on a Macintosh?
You register in-game. It comes when the program asks you to log in. There's an option to register.
How does one program a Royal 601 SC cash register?
how do i program on no tax key
Memory allocation of variables declared in a program is?
in register
