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FASTCALL.C
Upload User: dq031136
Upload Date: 2022-08-08
Package Size: 802k
Code Size: 1k
Category:
Visual C++ Books
Development Platform:
C++ Builder
- #include <stdio.h>
- #include <time.h>
- int _fastcall add_fast(int a, int b)
- {
- return(a + b);
- }
- int add_slow(int a, int b)
- {
- return(a + b);
- }
- void main(void)
- {
- unsigned long int i, result;
- clock_t start_time, stop_time;
- printf("Processing...n");
- start_time = clock();
- for (i = 0; i < 2000000L; i++)
- result = add_fast(i, -i);
- stop_time = clock();
- printf("Processing time for fast call %d ticksn",
- stop_time - start_time);
- start_time = clock();
- for (i = 0; i < 2000000L; i++)
- result = add_slow(i, -i);
- stop_time = clock();
- printf("Processing time for normal call %d ticksn",
- stop_time - start_time);
- }