1 // SPDX-License-Identifier: GPL-2.0 1
2 #include <linux/types.h>
3 #include <linux/errno.h>
4 #include <linux/uaccess.h>
5
6 #include <asm/sfp-machine.h>
7 #include <math-emu/soft-fp.h>
8 #include <math-emu/double.h>
9
10 int
11 fcmpu(u32 *ccr, int crfD, void *frA, void *frB
12 {
13 FP_DECL_D(A);
14 FP_DECL_D(B);
15 FP_DECL_EX;
16 int code[4] = { (1 << 3), (1 << 1), (1
17 long cmp;
18
19 #ifdef DEBUG
20 printk("%s: %p (%08x) %d %p %p\n", __f
21 #endif
22
23 FP_UNPACK_DP(A, frA);
24 FP_UNPACK_DP(B, frB);
25
26 #ifdef DEBUG
27 printk("A: %ld %lu %lu %ld (%ld)\n", A
28 printk("B: %ld %lu %lu %ld (%ld)\n", B
29 #endif
30
31 FP_CMP_D(cmp, A, B, 2);
32 cmp = code[(cmp + 1) & 3];
33
34 __FPU_FPSCR &= ~(0x1f000);
35 __FPU_FPSCR |= (cmp << 12);
36
37 *ccr &= ~(15 << ((7 - crfD) << 2));
38 *ccr |= (cmp << ((7 - crfD) << 2));
39
40 #ifdef DEBUG
41 printk("CR: %08x\n", *ccr);
42 #endif
43
44 return 0;
45 }
46
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