bit field


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bit field

(data)
Part of an item of data, storage location or message, identified as a certain number of contiguous bits starting at a certain bit position within the data. Bit position zero is usually the least significant bit.

For example, in an ARM machine code instruction the four-bit field at bits 28 to 31 (the four most significant bits in the 32-bit word) is the "condition code".
References in periodicals archive ?
Step 4: Row of bit field giving after conversion to decimal system lowest value gives the system, in which one step of online identification is proceeded.
Support for faster interrupt handling and manipulation of bit fields improves code efficiency, and will allow Toshiba to develop flexible core implementations of the MIPS architecture for digital consumer, automotive and networking applications.
The first implementation of the StarCore SC100 architecture, known as the SC140, features four parallel execution units that can each independently perform a Multiply Accumulate (MAC), arithmetic operation, or bit field manipulation operation in a single 300 MHz clock cycle.
The MSC8101 achieves this high performance level by employing four single-cycle MAC units, four arithmetic logic units (ALUs), and four bit field units (BFUs), all operating in parallel.
Featuring four single-cycle MAC units, four arithmetic logic units (ALUs), and four bit field units (BFUs), the SC140 delivers a peak performance of 1200 million MACs and 3000 RISC MIPS at 300 MHz.
The device integrates a bit field unit to manage microcontroller system control functions and communications through single cycle bit manipulation, masking and merging.