1// SPDX-License-Identifier: GPL-2.0
 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
10int
11fcmpu(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 << 2), (1 << 0) };
17	long cmp;
18
19#ifdef DEBUG
20	printk("%s: %p (%08x) %d %p %p\n", __func__, ccr, *ccr, crfD, frA, frB);
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_s, A_f1, A_f0, A_e, A_c);
28	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
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}

 1// SPDX-License-Identifier: GPL-2.0
 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
10int
11fcmpu(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 << 2), (1 << 0) };
17	long cmp;
18
19#ifdef DEBUG
20	printk("%s: %p (%08x) %d %p %p\n", __func__, ccr, *ccr, crfD, frA, frB);
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_s, A_f1, A_f0, A_e, A_c);
28	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
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}