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| 25 | |
25 | |
| 26 | #ifndef DEVEL_H |
26 | #ifndef DEVEL_H |
| 27 | #define DEVEL_H |
27 | #define DEVEL_H |
| 28 | |
28 | |
| 29 | // used for benchmarking (x86/amd64-specific) |
29 | // used for benchmarking (x86/amd64-specific) |
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30 | #ifdef DEVEL64 |
| 30 | typedef unsigned int cstamp; |
31 | typedef uint64_t cstamp; |
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32 | #else |
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33 | typedef uint32_t cstamp; |
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34 | #endif |
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35 | |
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36 | #if defined(__i386__) || defined(__x86_64__) |
| 31 | |
37 | |
| 32 | static inline cstamp |
38 | static inline cstamp |
| 33 | stamp (void) |
39 | stamp (void) |
| 34 | { |
40 | { |
| 35 | cstamp tsc; |
41 | uint32_t l, h; |
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42 | |
| 36 | asm volatile ("rdtsc" : "=a" (tsc) : : "edx"); |
43 | asm volatile ("rdtsc" : "=a" (l), "=d" (h)); |
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44 | |
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45 | #ifdef DEVEL64 |
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46 | return ((cstamp)h << 32) | l; |
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47 | #else |
| 37 | return tsc; |
48 | return l; |
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49 | #endif |
| 38 | } |
50 | } |
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51 | |
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52 | #elif defined(__powerpc__) |
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53 | static inline cstamp |
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54 | stamp (void) |
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55 | { |
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56 | unsigned uint32_t u, l, tmp; |
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57 | |
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58 | asm volatile ( |
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59 | "0: \n" |
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60 | "\tmftbu %0 \n" |
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61 | "\tmftb %1 \n" |
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62 | "\tmftbu %2 \n" |
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63 | "\tcmpw %2,%0\n" |
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64 | "\tbne 0b \n" |
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65 | : "=r" (h), "=r" (l), "=r" (tmp) |
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66 | ); |
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67 | |
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68 | #ifdef DEVEL64 |
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69 | return ((cstamp)h << 32) | l; |
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70 | #else |
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71 | return l; |
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72 | #endif |
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73 | } |
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74 | |
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75 | #endif |
| 39 | |
76 | |
| 40 | static inline cstamp |
77 | static inline cstamp |
| 41 | measure (cstamp t) |
78 | measure (cstamp t) |
| 42 | { |
79 | { |
| 43 | return stamp () - t; |
80 | return stamp () - t; |
