| 36,15 → 36,42 |
|---|
| #include <proc/thread.h> |
| |
| #include <arch.h> |
| #include <arch/arch.h> |
| |
| #define THREADS 150*2 |
| #define ATTEMPTS 100 |
| #define THREADS 15*2 |
| #define ATTEMPTS 10 |
| |
| #define E_10e8 271828182 |
| #define PI_10e8 314159265 |
| |
| |
| #ifdef __ia32_ARCH_H__ |
| static inline double sqrt(double x) { double v; __asm__ ("fsqrt\n" : "=t" (v) : "0" (x)); return v; } |
| #endif |
| |
| #ifdef __amd64_ARCH_H__ |
| static inline double sqrt(double x) { double v; __asm__ ("fsqrt\n" : "=t" (v) : "0" (x)); return v; } |
| #endif |
| |
| #ifdef __ia64_ARCH_H__ |
| static inline long double sqrt(long double a) |
| { |
| long double x = 1; |
| long double lx = 0; |
| |
| if(a<0.00000000000000001) return 0; |
| |
| while(x!=lx) |
| { |
| lx=x; |
| x=(x+(a/x))/2; |
| } |
| return x; |
| } |
| #endif |
| |
| |
| |
| static atomic_t threads_ok; |
| static waitq_t can_start; |
| |
| 75,6 → 102,12 |
|---|
| |
| static void pi(void *data) |
| { |
| |
| #ifdef __ia64_ARCH_H__ |
| #undef PI_10e8 |
| #define PI_10e8 3141592 |
| #endif |
| |
| int i; |
| double lpi, pi; |
| double n, ab, ad; |
| 96,8 → 129,14 |
|---|
| pi = 2 * n * ad; |
| } |
| |
| #ifdef __ia64_ARCH_H__ |
| if((int)(1000000*pi)!=PI_10e8) |
| panic("tid%d: pi*10e8=%d should be %d\n", THREAD->tid, (__native) (1000000*pi),(__native) (PI_10e8/100)); |
| #else |
| if((int)(100000000*pi)!=PI_10e8) |
| panic("tid%d: pi*10e8=%d should be %d\n", THREAD->tid, (__native) (100000000*pi),(__native) PI_10e8); |
| #endif |
| |
| } |
| |
| printf("tid%d: pi*10e8=%d should be %d\n", THREAD->tid, (__native) (100000000*pi),(__native) PI_10e8); |
| 133,3 → 172,43 |
|---|
| |
| printf("Test passed.\n"); |
| } |
| |
| /* |
| static void pi(void *data) |
| { |
| #undef PI_10e8 |
| #define PI_10e8 3141592 |
| |
| |
| int i; |
| double lpi, pi; |
| double n, ab, ad; |
| |
| |
| printf("pi test\n"); |
| |
| waitq_sleep(&can_start); |
| |
| |
| for (i = 0; i<ATTEMPTS; i++) { |
| lpi = -1; |
| pi = 0; |
| |
| for (n=2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) { |
| double sc, cd; |
| |
| sc = sqrt(1 - (ab*ab/4)); |
| cd = 1 - sc; |
| ad = sqrt(ab*ab/4 + cd*cd); |
| lpi = pi; |
| pi = 2 * n * ad; |
| } |
| |
| atomic_inc(&threads_ok); |
| if((int)(1000000*pi)!=PI_10e8) |
| panic("tid%d: pi*10e6=%d\n", THREAD->tid, (int) 1000000*pi); |
| } |
| |
| printf("tid%d: pi*10e6=%d\n", THREAD->tid, (int) 1000000*pi); |
| } |
| */ |