An 8-bit data is read from an input device and stored in the memory location 0x20000200. This data is needed to be processed first by the ARM microprocessor. In particular, the data needs to be masked where bit number 1, 5, 6 and 7 must be cleared to 0 before the data can be processed. Write a suitable instructions to mask the data as specified in the specification above. Explain your work.
An 8-bit data is read from an input device and stored in the memory location 0x20000200. This data is needed to be processed first by the ARM microprocessor. In particular, the data needs to be masked where bit number 1, 5, 6 and 7 must be cleared to 0 before the data can be processed. Write a suitable instructions to mask the data as specified in the specification above. Explain your work.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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An 8-bit data is read from an input device and stored in the memory location 0x20000200. This
data is needed to be processed first by the ARM microprocessor. In particular, the data needs
to be masked where bit number 1, 5, 6 and 7 must be cleared to 0 before the data can be
processed. Write a suitable instructions to mask the data as specified in the specification above.
Explain your work.
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