IMASK Valuesunsigned cli(void) /* close interrupt */void sti(unsigned mask) /* setup interrupt */The cli() function retrieves the old value of IMASK, and disables interrupts by setting IMASK to all zeros. The sti() function installs a
from: http://www.cs.umd.edu/class/sum2003/cmsc311/Notes/Memory/set.html Introduction A set-associative scheme is a hybrid between a fully associativecache, and direct mapped cache. It's considered a reasonable compromisebetween the complex
The ADSP-BF561 has 48 bi-directional, general-purpose I/O, Programmable Flag (PF47-0) pins. The Programmable Flag pins have special functions for SPI port operation. Each programmable flag can be individually controlled as follows by manipulation of
Introduction A cache consists of a number of slots. Let's call it N.N is almost always some power of 2. Each slot containsM bytes which is the cache line, and this is usuallya power of 2, as well. We'll assume, for our example, that our
Introduction Let's assume, as we did for fully associate caches that we have: 128 slots 32 bytes per slotParking Lot Analogy Suppose we have 1000 parking spots. However, instead of beingunnumbered, each parking spot is given a 3 digit number
The ADSP-BF561 processor is a high-performance member of the Blackfin family of products targeting a variety of multimedia and telecommunications applications. At the heart of this device are two independent Analog Devices Blackfin processors. These