xref: /openbmc/linux/arch/powerpc/math-emu/fadds.c (revision 64c70b1c)
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 #include "single.h"
8 
9 int
10 fadds(void *frD, void *frA, void *frB)
11 {
12 	FP_DECL_D(A);
13 	FP_DECL_D(B);
14 	FP_DECL_D(R);
15 	int ret = 0;
16 
17 #ifdef DEBUG
18 	printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
19 #endif
20 
21 	__FP_UNPACK_D(A, frA);
22 	__FP_UNPACK_D(B, frB);
23 
24 #ifdef DEBUG
25 	printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
26 	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
27 #endif
28 
29 	if (A_s != B_s && A_c == FP_CLS_INF && B_c == FP_CLS_INF)
30 		ret |= EFLAG_VXISI;
31 
32 	FP_ADD_D(R, A, B);
33 
34 #ifdef DEBUG
35 	printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
36 #endif
37 
38 	return (ret | __FP_PACK_DS(frD, R));
39 }
40