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# v850 divh_3
# mach: v850e
# as(v850e): -mv850e
 
        .include "testutils.inc"
 
# Regular divhision - check signs
# The S flag is based on the quotient, not the remainder
 
        seti    6, r1
        seti    45, r2
        divh    r1, r2, r3
 
        flags   0
        reg     r1, 6
        reg     r2, 7
        reg     r3, 3
 
        seti    -6, r1
        seti    45, r2
        divh    r1, r2, r3
 
        flags   s
        reg     r1, -6
        reg     r2, -7
        reg     r3, 3
 
        seti    6, r1
        seti    -45, r2
        divh    r1, r2, r3
 
        flags   s
        reg     r1, 6
        reg     r2, -7
        reg     r3, -3
 
        seti    -6, r1
        seti    -45, r2
        divh    r1, r2, r3
 
        flags   0
        reg     r1, -6
        reg     r2, 7
        reg     r3, -3
 
# Only the lower half of the dividend is used
 
        seti    0x0000fffa, r1
        seti    -45, r2
        divh    r1, r2, r3
 
        flags   0
        reg     r1, 0x0000fffa
        reg     r2, 7
        reg     r3, -3
 
 
# If the data is divhided by zero, OV=1 and the quotient is undefined.
# According to NEC, the S and Z flags, and the output registers, are
# unchanged.
 
        noflags
        seti    0, r1
        seti    45, r2
        seti    67, r3
        divh    r1, r2, r3
 
        flags   v
        reg     r2, 45
        reg     r3, 67
 
        allflags
        seti    0, r1
        seti    45, r2
        seti    67, r3
        divh    r1, r2, r3
 
        flags   sat + c + v + s + z
        reg     r2, 45
        reg     r3, 67
 
# Zero / (N!=0) => normal
 
        noflags
        seti    45, r1
        seti    0, r2
        seti    67, r3
        divh    r1, r2, r3
 
        flags   z
        reg     r1, 45
        reg     r2, 0
        reg     r3, 0
 
# Test for regular overflow
 
        noflags
        seti    -1, r1
        seti    0x80000000, r2
        seti    67, r3
        divh    r1, r2, r3
 
        flags   v + s
        reg     r1, -1
        reg     r2, 0x80000000
        reg     r3, 0
 
# The Z flag is based on the quotient, not the remainder
 
        noflags
        seti    45, r1
        seti    16, r2
        divh    r1, r2, r3
 
        flags   z
        reg     r2, 0
        reg     r3, 16
 
# If the quot and rem registers are the same, the remainder is stored.
 
        seti    6, r1
        seti    45, r2
        divh    r1, r2, r2
 
        flags   0
        reg     r1, 6
        reg     r2, 3
 
 
        pass

Line No.	Rev	Author	Line
1	24	jeremybenn	`# v850 divh_3`
2			`# mach: v850e`
3			`# as(v850e): -mv850e`
4
5			`.include "testutils.inc"`
6
7			`# Regular divhision - check signs`
8			`# The S flag is based on the quotient, not the remainder`
9
10			`seti 6, r1`
11			`seti 45, r2`
12			`divh r1, r2, r3`
13
14			`flags 0`
15			`reg r1, 6`
16			`reg r2, 7`
17			`reg r3, 3`
18
19			`seti -6, r1`
20			`seti 45, r2`
21			`divh r1, r2, r3`
22
23			`flags s`
24			`reg r1, -6`
25			`reg r2, -7`
26			`reg r3, 3`
27
28			`seti 6, r1`
29			`seti -45, r2`
30			`divh r1, r2, r3`
31
32			`flags s`
33			`reg r1, 6`
34			`reg r2, -7`
35			`reg r3, -3`
36
37			`seti -6, r1`
38			`seti -45, r2`
39			`divh r1, r2, r3`
40
41			`flags 0`
42			`reg r1, -6`
43			`reg r2, 7`
44			`reg r3, -3`
45
46			`# Only the lower half of the dividend is used`
47
48			`seti 0x0000fffa, r1`
49			`seti -45, r2`
50			`divh r1, r2, r3`
51
52			`flags 0`
53			`reg r1, 0x0000fffa`
54			`reg r2, 7`
55			`reg r3, -3`
56
57
58			`# If the data is divhided by zero, OV=1 and the quotient is undefined.`
59			`# According to NEC, the S and Z flags, and the output registers, are`
60			`# unchanged.`
61
62			`noflags`
63			`seti 0, r1`
64			`seti 45, r2`
65			`seti 67, r3`
66			`divh r1, r2, r3`
67
68			`flags v`
69			`reg r2, 45`
70			`reg r3, 67`
71
72			`allflags`
73			`seti 0, r1`
74			`seti 45, r2`
75			`seti 67, r3`
76			`divh r1, r2, r3`
77
78			`flags sat + c + v + s + z`
79			`reg r2, 45`
80			`reg r3, 67`
81
82			`# Zero / (N!=0) => normal`
83
84			`noflags`
85			`seti 45, r1`
86			`seti 0, r2`
87			`seti 67, r3`
88			`divh r1, r2, r3`
89
90			`flags z`
91			`reg r1, 45`
92			`reg r2, 0`
93			`reg r3, 0`
94
95			`# Test for regular overflow`
96
97			`noflags`
98			`seti -1, r1`
99			`seti 0x80000000, r2`
100			`seti 67, r3`
101			`divh r1, r2, r3`
102
103			`flags v + s`
104			`reg r1, -1`
105			`reg r2, 0x80000000`
106			`reg r3, 0`
107
108			`# The Z flag is based on the quotient, not the remainder`
109
110			`noflags`
111			`seti 45, r1`
112			`seti 16, r2`
113			`divh r1, r2, r3`
114
115			`flags z`
116			`reg r2, 0`
117			`reg r3, 16`
118
119			`# If the quot and rem registers are the same, the remainder is stored.`
120
121			`seti 6, r1`
122			`seti 45, r2`
123			`divh r1, r2, r2`
124
125			`flags 0`
126			`reg r1, 6`
127			`reg r2, 3`
128
129
130			`pass`

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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [testsuite/] [sim/] [v850/] [divh_3.cgs] - Blame information for rev 280