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avoid negative left shifts #1

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avoid negative left shifts #1

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10 changes: 5 additions & 5 deletions cacheid.c
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Original file line number Diff line number Diff line change
Expand Up @@ -28,14 +28,14 @@ int main(){
* EAX, bits 07-05
* Starts at 1
*/
long int level = (eax & ~(~0 << 3) << 5) >> 5;
unsigned long level = (eax & ~(~0ul << 3) << 5) >> 5;
printf("\n-- Level: %lu ", level);

/*
* Cache type
* EAX, bits 04-00
*/
long int type = (eax & ~(~0 << 4) << 0) >> 0;
unsigned long type = (eax & ~(~0ul << 4) << 0) >> 0;
switch(type){
case 1:
printf("(data cache)\n");
Expand Down Expand Up @@ -91,23 +91,23 @@ int main(){
* EBX, bits 11-00
* Add one to the return value to get the result.
*/
long int line_size = (ebx & ~(~0 << 12) << 0) >> 0;
unsigned long line_size = (ebx & ~(~0ul << 12) << 0) >> 0;
printf("Line size: %lu\n", line_size+1);

/*
* Ways of associativity
* EBX, bits 31-22
* Add one to the return value to get the result.
*/
long int ways = (ebx & ~(~0 << 10) << 22) >> 22;
unsigned long ways = (ebx & ~(~0ul << 10) << 22) >> 22;
printf("Number of ways: %lu\n", ways+1);

/*
* Number of sets
* ECX, bits 31-22
* Add one to the return value to get the result.
*/
long int sets = (ecx & ~(~0 << 31) << 0) >> 0;
unsigned long sets = (ecx & ~(~0ul << 31) << 0) >> 0;
printf("Number of sets: %lu\n", sets+1);

/* Raw results */
Expand Down