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Commit | Line | Data |
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1da177e4 LT |
1 | #include <linux/types.h> |
2 | #include <linux/errno.h> | |
3 | #include <asm/uaccess.h> | |
4 | ||
5 | #include "soft-fp.h" | |
6 | #include "double.h" | |
7 | ||
8 | int | |
9 | fcmpu(u32 *ccr, int crfD, void *frA, void *frB) | |
10 | { | |
11 | FP_DECL_D(A); | |
12 | FP_DECL_D(B); | |
13 | int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) }; | |
14 | long cmp; | |
15 | ||
16 | #ifdef DEBUG | |
17 | printk("%s: %p (%08x) %d %p %p\n", __FUNCTION__, ccr, *ccr, crfD, frA, frB); | |
18 | #endif | |
19 | ||
20 | __FP_UNPACK_D(A, frA); | |
21 | __FP_UNPACK_D(B, frB); | |
22 | ||
23 | #ifdef DEBUG | |
24 | printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); | |
25 | printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); | |
26 | #endif | |
27 | ||
28 | FP_CMP_D(cmp, A, B, 2); | |
29 | cmp = code[(cmp + 1) & 3]; | |
30 | ||
31 | __FPU_FPSCR &= ~(0x1f000); | |
32 | __FPU_FPSCR |= (cmp << 12); | |
33 | ||
34 | *ccr &= ~(15 << ((7 - crfD) << 2)); | |
35 | *ccr |= (cmp << ((7 - crfD) << 2)); | |
36 | ||
37 | #ifdef DEBUG | |
38 | printk("CR: %08x\n", *ccr); | |
39 | #endif | |
40 | ||
41 | return 0; | |
42 | } |