diff options
Diffstat (limited to 'arch/parisc/lib/libgcc/__umulsidi3.c')
-rw-r--r-- | arch/parisc/lib/libgcc/__umulsidi3.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/arch/parisc/lib/libgcc/__umulsidi3.c b/arch/parisc/lib/libgcc/__umulsidi3.c deleted file mode 100644 index 396f669164d..00000000000 --- a/arch/parisc/lib/libgcc/__umulsidi3.c +++ /dev/null | |||
@@ -1,46 +0,0 @@ | |||
1 | #include "libgcc.h" | ||
2 | |||
3 | #define __ll_B ((u32) 1 << (32 / 2)) | ||
4 | #define __ll_lowpart(t) ((u32) (t) & (__ll_B - 1)) | ||
5 | #define __ll_highpart(t) ((u32) (t) >> 16) | ||
6 | |||
7 | #define umul_ppmm(w1, w0, u, v) \ | ||
8 | do { \ | ||
9 | u32 __x0, __x1, __x2, __x3; \ | ||
10 | u16 __ul, __vl, __uh, __vh; \ | ||
11 | \ | ||
12 | __ul = __ll_lowpart (u); \ | ||
13 | __uh = __ll_highpart (u); \ | ||
14 | __vl = __ll_lowpart (v); \ | ||
15 | __vh = __ll_highpart (v); \ | ||
16 | \ | ||
17 | __x0 = (u32) __ul * __vl; \ | ||
18 | __x1 = (u32) __ul * __vh; \ | ||
19 | __x2 = (u32) __uh * __vl; \ | ||
20 | __x3 = (u32) __uh * __vh; \ | ||
21 | \ | ||
22 | __x1 += __ll_highpart (__x0);/* this can't give carry */ \ | ||
23 | __x1 += __x2; /* but this indeed can */ \ | ||
24 | if (__x1 < __x2) /* did we get it? */ \ | ||
25 | __x3 += __ll_B; /* yes, add it in the proper pos. */ \ | ||
26 | \ | ||
27 | (w1) = __x3 + __ll_highpart (__x1); \ | ||
28 | (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \ | ||
29 | } while (0) | ||
30 | |||
31 | union DWunion { | ||
32 | struct { | ||
33 | s32 high; | ||
34 | s32 low; | ||
35 | } s; | ||
36 | s64 ll; | ||
37 | }; | ||
38 | |||
39 | u64 __umulsidi3(u32 u, u32 v) | ||
40 | { | ||
41 | union DWunion __w; | ||
42 | |||
43 | umul_ppmm(__w.s.high, __w.s.low, u, v); | ||
44 | |||
45 | return __w.ll; | ||
46 | } | ||