Question

Discuss the use of overlapped register

window in RISC architecture​

Answer 1

Answer:

Using overlapped register windows (RISC processors) to provide the passing of parameters and avoid the need for saving and restoring register values. Register Windows: ... Each procedure CALL results in the allocation of a new window consisting of a set from the register file for use by the new procedure.

Answer 2

The use of conflicting register windows (RISC processors) to have parameter passage and to eliminate the need to save and restore register values. Windows Register

Explanation:

• Each CALL procedure leads to the allocation of a new window consisting of a set from the register file for use through the new procedure.
• Just one register window is active at a time – a pointer shows the current register window
• When a feature is called, a new register window is enabled – this is achieved by increasing the pointer
• When a feature calls a new program, the high numbered registers in the calling system window are exchanged with the function called as the low numbered registers of the register window.

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