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integ.c
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integ.c
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#include "main.h"
#include "cache.h"
void write_to_cache(int u,int idx)
{
c[u][idx]=write_data;
}
void read_from_cache(int u,int idx)
{
read_data=c[u][idx];
}
void write_to_MM(unsigned addr)
{
if(0x10010000<=addr && addr<0x10010000+67108864)
{MMd[addr-0x10010000]=write_data;}
else if(0x00400000<=addr && addr<0x00400000+65536)
{MMi[addr-0x00400000]=write_data;}
else
{//printf("Error - memory address is out of range\n");
}
}
void read_from_MM(unsigned addr)
{
if(0x10010000<=addr && addr<0x10010000+67108864)
{read_data=MMd[addr-0x10010000];}
else if(0x00400000<=addr && addr<0x00400000+65536)
{read_data=MMi[addr-0x00400000];}
else
{//printf("Error - memory address is out of range\n");
}
}
//these two are for transfers between cache and MM
void block_write(int u,int mini)
{
//block write to MM from here
unsigned pre=(tag[u][mini]<<(indxbits[u]+blockbits[u]));
pre=pre|(indx<<blockbits[u]);
for(unsigned i=mini,j=0 ; i<(mini+cache_block_size[u]) ; ++i,++j)
{
write_data=c[u][i];
write_to_MM(pre|j);
}
//block write to MM till here
}
void block_read(int u,int mini)
{
//block read from MM from here
unsigned pre=(tag[u][mini]<<(indxbits[u]+blockbits[u]));
pre=pre|(indx<<blockbits[u]);
for(unsigned i=mini,j=0 ; i<(mini+cache_block_size[u]) ; ++i,++j)
{
read_from_MM(pre|j);
c[u][i]=read_data;
}
//block read from MM till here
}