Question

I need help just starting the algorithm for Direct Memory Mapping. I understand the semi-pseudo and I even did a few practice numbers/addresses by hand, drawing a diagram for my buffers. When it comes to putting it in C code, I'm stumped. The data members that I am working with are:

tCache.buffers->age
tCache.buffers->tag
tCache.buffers->validBit

tCache.nBufferQty
tCache.nBufferSize
tCache.nCacheHit
tCache.nCacheMiss
tCache.nTotalAccess

tRunData->nBufferQty
tRunData->nBufferSize
tRunData->nCacheHit
tRunData->nCacheMiss

strAddrList[][MAXADDRLEN] ( addresses )

Answer 1

Basically my logic would fall into here:

// Process each memory address in the current test run and determine hits and misses.
for(i = 0; i < cache.nTotalAccesses; ++i)
{
unsigned int address;
sscanf_s(strAddrList[i], "%X", &address); // Convert hex string to a usable int address value.

// Code to process each memory address should go here:

}