| … | |
… | |
| 32 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
32 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
| 33 | |
33 | |
| 34 | // in range excluding end |
34 | // in range excluding end |
| 35 | #define IN_RANGE_EXC(val,beg,end) \ |
35 | #define IN_RANGE_EXC(val,beg,end) \ |
| 36 | ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) |
36 | ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) |
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|
37 | |
|
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38 | void fork_abort (const char *msg); |
| 37 | |
39 | |
| 38 | // this is much faster than crossfires original algorithm |
40 | // this is much faster than crossfires original algorithm |
| 39 | // on modern cpus |
41 | // on modern cpus |
| 40 | inline int |
42 | inline int |
| 41 | isqrt (int n) |
43 | isqrt (int n) |
| … | |
… | |
| 58 | #if 0 |
60 | #if 0 |
| 59 | return dx_ > dy_ |
61 | return dx_ > dy_ |
| 60 | ? (dx_ * 61685 + dy_ * 26870) >> 16 |
62 | ? (dx_ * 61685 + dy_ * 26870) >> 16 |
| 61 | : (dy_ * 61685 + dx_ * 26870) >> 16; |
63 | : (dy_ * 61685 + dx_ * 26870) >> 16; |
| 62 | #else |
64 | #else |
| 63 | return dx + dy - min (dx, dy) * 5 / 8; |
65 | return dx_ + dy_ - min (dx_, dy_) * 5 / 8; |
| 64 | #endif |
66 | #endif |
| 65 | } |
67 | } |
| 66 | |
68 | |
| 67 | /* |
69 | /* |
| 68 | * absdir(int): Returns a number between 1 and 8, which represent |
70 | * absdir(int): Returns a number between 1 and 8, which represent |
