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| @@ -36,6 +36,30 @@ static inline av_const int MULH(int a, int b) · 35 unmodified lines | ||
| 36 | 36 | __asm__ ("smmul %0, %1, %2" : "=r"(r) : "r"(a), "r"(b)); |
| 37 | 37 | return r; |
| 38 | 38 | } |
| 39 | + | |
| 40 | +#define FASTDIV FASTDIV | |
| 41 | +static av_always_inline av_const int FASTDIV(int a, int b) | |
| 42 | +{ | |
| 43 | + int r; | |
| 44 | + __asm__ ("cmp %2, #2 \n\t" | |
| 45 | + "ldr %0, [%3, %2, lsl #2] \n\t" | |
| 46 | + "ite le \n\t" | |
| 47 | + "lsrle %0, %1, #1 \n\t" | |
| 48 | + "smmulgt %0, %0, %1 \n\t" | |
| 49 | + : "=&r"(r) : "r"(a), "r"(b), "r"(ff_inverse) : "cc"); | |
| 50 | + return r; | |
| 51 | +} | |
| 52 | + | |
| 53 | +#else /* HAVE_ARMV6 */ | |
| 54 | + | |
| 55 | +#define FASTDIV FASTDIV | |
| 56 | +static av_always_inline av_const int FASTDIV(int a, int b) | |
| 57 | +{ | |
| 58 | + int r, t; | |
| 59 | + __asm__ ("umull %1, %0, %2, %3" | |
| 60 | + : "=&r"(r), "=&r"(t) : "r"(a), "r"(ff_inverse[b])); | |
| 61 | + return r; | |
| 62 | +} | |
| 39 | 63 | #endif |
| 40 | 64 | |
| 41 | 65 | #define MLS64(d, a, b) MAC64(d, -(a), b) |