1
2
3
4
5
6
7
8
9
10 #ifndef _STATUS_H_
11 #define _STATUS_H_
12
13
14 #ifdef __ASSEMBLER__
15 #define Const__(x) $##x
16 #else
17 #define Const__(x) x
18 #endif
19
20 #define SW_Backward Const__(0x8000)
21 #define SW_C3 Const__(0x4000)
22 #define SW_Top Const__(0x3800)
23 #define SW_Top_Shift Const__(11)
24 #define SW_C2 Const__(0x0400)
25 #define SW_C1 Const__(0x0200)
26 #define SW_C0 Const__(0x0100)
27 #define SW_Summary Const__(0x0080)
28 #define SW_Stack_Fault Const__(0x0040)
29 #define SW_Precision Const__(0x0020)
30 #define SW_Underflow Const__(0x0010)
31 #define SW_Overflow Const__(0x0008)
32 #define SW_Zero_Div Const__(0x0004)
33 #define SW_Denorm_Op Const__(0x0002)
34 #define SW_Invalid Const__(0x0001)
35
36 #define SW_Exc_Mask Const__(0x27f)
37
38 #ifndef __ASSEMBLER__
39
40 #define COMP_A_gt_B 1
41 #define COMP_A_eq_B 2
42 #define COMP_A_lt_B 3
43 #define COMP_No_Comp 4
44 #define COMP_Denormal 0x20
45 #define COMP_NaN 0x40
46 #define COMP_SNaN 0x80
47
48 #define status_word() \
49 ((partial_status & ~SW_Top & 0xffff) | ((top << SW_Top_Shift) & SW_Top))
50 #define setcc(cc) ({ \
51 partial_status &= ~(SW_C0|SW_C1|SW_C2|SW_C3); \
52 partial_status |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3); })
53
54
55 #define clear_C1() { partial_status &= ~SW_C1; }
56
57 #endif __ASSEMBLER__
58
59 #endif _STATUS_H_