Rev 3162 | Rev 3913 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 3162 | Rev 3167 | ||
|---|---|---|---|
| Line 56... | Line 56... | ||
| 56 | long tmp, v; |
56 | long tmp, v; |
| 57 | 57 | ||
| 58 | asm volatile ( |
58 | asm volatile ( |
| 59 | "1:\n" |
59 | "1:\n" |
| 60 | " ll %0, %1\n" |
60 | " ll %0, %1\n" |
| 61 | " addiu %0, %0, %3\n" /* same as addi, but never traps on overflow */ |
61 | " addu %0, %0, %3\n" /* same as addi, but never traps on overflow */ |
| 62 | " move %2, %0\n" |
62 | " move %2, %0\n" |
| 63 | " sc %0, %1\n" |
63 | " sc %0, %1\n" |
| 64 | " beq %0, %4, 1b\n" /* if the atomic operation failed, try again */ |
64 | " beq %0, %4, 1b\n" /* if the atomic operation failed, try again */ |
| 65 | " nop\n" |
65 | " nop\n" |
| 66 | : "=&r" (tmp), "+m" (val->count), "=&r" (v) |
66 | : "=&r" (tmp), "+m" (val->count), "=&r" (v) |
| 67 | : "i" (i), "i" (0) |
67 | : "r" (i), "i" (0) |
| 68 | ); |
68 | ); |
| 69 | 69 | ||
| 70 | return v; |
70 | return v; |
| 71 | } |
71 | } |
| 72 | 72 | ||