xref: /openbmc/qemu/tests/tcg/xtensa/test_fp0_arith.S (revision 2a53cff4)
1#include "macros.inc"
2
3test_suite fp0_arith
4
5#if XCHAL_HAVE_FP
6
7.macro movfp fr, v
8    movi    a2, \v
9    wfr     \fr, a2
10.endm
11
12.macro check_res fr, r
13    rfr     a2, \fr
14    dump    a2
15    movi    a3, \r
16    assert  eq, a2, a3
17    rur     a2, fsr
18    assert  eqi, a2, 0
19.endm
20
21.macro test_op2_rm op, fr0, fr1, fr2, v0, v1, r
22    movi    a2, 0
23    wur     a2, fsr
24    movfp   \fr0, \v0
25    movfp   \fr1, \v1
26    \op     \fr2, \fr0, \fr1
27    check_res \fr2, \r
28.endm
29
30.macro test_op3_rm op, fr0, fr1, fr2, fr3, v0, v1, v2, r
31    movi    a2, 0
32    wur     a2, fsr
33    movfp   \fr0, \v0
34    movfp   \fr1, \v1
35    movfp   \fr2, \v2
36    \op     \fr0, \fr1, \fr2
37    check_res \fr3, \r
38.endm
39
40.macro test_op2_ex op, fr0, fr1, fr2, v0, v1, rm, r
41    movi    a2, \rm
42    wur     a2, fcr
43    test_op2_rm \op, \fr0, \fr1, \fr2, \v0, \v1, \r
44    movi    a2, (\rm) | 0x7c
45    wur     a2, fcr
46    test_op2_rm \op, \fr0, \fr1, \fr2, \v0, \v1, \r
47.endm
48
49.macro test_op3_ex op, fr0, fr1, fr2, fr3, v0, v1, v2, rm, r
50    movi    a2, \rm
51    wur     a2, fcr
52    test_op3_rm \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, \r
53    movi    a2, (\rm) | 0x7c
54    wur     a2, fcr
55    test_op3_rm \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, \r
56.endm
57
58.macro test_op2 op, fr0, fr1, fr2, v0, v1, r0, r1, r2, r3
59    test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 0, \r0
60    test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 1, \r1
61    test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 2, \r2
62    test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 3, \r3
63.endm
64
65.macro test_op3 op, fr0, fr1, fr2, fr3, v0, v1, v2, r0, r1, r2, r3
66    test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 0, \r0
67    test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 1, \r1
68    test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 2, \r2
69    test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 3, \r3
70.endm
71
72.macro test_op2_cpe op
73    set_vector  kernel, 2f
74    movi    a2, 0
75    wsr     a2, cpenable
761:
77    \op     f2, f0, f1
78    test_fail
792:
80    rsr     a2, excvaddr
81    movi    a3, 1b
82    assert  eq, a2, a3
83    rsr     a2, exccause
84    movi    a3, 32
85    assert  eq, a2, a3
86
87    set_vector  kernel, 0
88    movi    a2, 1
89    wsr     a2, cpenable
90.endm
91
92test add_s
93    movi    a2, 1
94    wsr     a2, cpenable
95
96    test_op2 add.s, f0, f1, f2, 0x3fc00000, 0x34400000, \
97        0x3fc00002, 0x3fc00001, 0x3fc00002, 0x3fc00001
98    test_op2 add.s, f3, f4, f5, 0x3fc00000, 0x34a00000, \
99        0x3fc00002, 0x3fc00002, 0x3fc00003, 0x3fc00002
100
101    /* MAX_FLOAT + MAX_FLOAT = +inf/MAX_FLOAT  */
102    test_op2 add.s, f6, f7, f8, 0x7f7fffff, 0x7f7fffff, \
103        0x7f800000, 0x7f7fffff, 0x7f800000, 0x7f7fffff
104test_end
105
106test add_s_inf
107    /* 1 + +inf = +inf  */
108    test_op2 add.s, f6, f7, f8, 0x3fc00000, 0x7f800000, \
109        0x7f800000, 0x7f800000, 0x7f800000, 0x7f800000
110
111    /* +inf + -inf = default NaN */
112    test_op2 add.s, f0, f1, f2, 0x7f800000, 0xff800000, \
113        0x7fc00000, 0x7fc00000, 0x7fc00000, 0x7fc00000
114test_end
115
116test add_s_nan
117    /* 1 + NaN = NaN  */
118    test_op2 add.s, f9, f10, f11, 0x3fc00000, 0x7fc00001, \
119        0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001
120    test_op2 add.s, f12, f13, f14, 0x3fc00000, 0x7f800001, \
121        0x7f800001, 0x7f800001, 0x7f800001, 0x7f800001
122
123    /* NaN1 + NaN2 = NaN1 */
124    test_op2 add.s, f15, f0, f1, 0x7f800001, 0x7fbfffff, \
125        0x7f800001, 0x7f800001, 0x7f800001, 0x7f800001
126    test_op2 add.s, f2, f3, f4, 0x7fbfffff, 0x7f800001, \
127        0x7fbfffff, 0x7fbfffff, 0x7fbfffff, 0x7fbfffff
128    test_op2 add.s, f5, f6, f7, 0x7fc00001, 0x7fbfffff, \
129        0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001
130    test_op2 add.s, f8, f9, f10, 0x7fbfffff, 0x7fc00001, \
131        0x7fbfffff, 0x7fbfffff, 0x7fbfffff, 0x7fbfffff
132test_end
133
134test sub_s
135    test_op2 sub.s, f0, f1, f0, 0x3f800001, 0x33800000, \
136        0x3f800000, 0x3f800000, 0x3f800001, 0x3f800000
137    test_op2 sub.s, f0, f1, f1, 0x3f800002, 0x33800000, \
138        0x3f800002, 0x3f800001, 0x3f800002, 0x3f800001
139
140    /* norm - norm = denorm */
141    test_op2 sub.s, f6, f7, f8, 0x00800001, 0x00800000, \
142        0x00000001, 0x00000001, 0x00000001, 0x00000001
143test_end
144
145test mul_s
146    test_op2 mul.s, f0, f1, f2, 0x3f800001, 0x3f800001, \
147        0x3f800002, 0x3f800002, 0x3f800003, 0x3f800002
148
149    /* MAX_FLOAT/2 * MAX_FLOAT/2 = +inf/MAX_FLOAT  */
150    test_op2 mul.s, f6, f7, f8, 0x7f000000, 0x7f000000, \
151        0x7f800000, 0x7f7fffff, 0x7f800000, 0x7f7fffff
152    /* min norm * min norm = 0/denorm */
153    test_op2 mul.s, f6, f7, f8, 0x00800001, 0x00800000, \
154        0x00000000, 0x00000000, 0x00000001, 0x00000000
155
156    /* inf * 0 = default NaN */
157    test_op2 mul.s, f6, f7, f8, 0x7f800000, 0x00000000, \
158        0x7fc00000, 0x7fc00000, 0x7fc00000, 0x7fc00000
159test_end
160
161test madd_s
162    test_op3 madd.s, f0, f1, f2, f0, 0, 0x3f800001, 0x3f800001, \
163        0x3f800002, 0x3f800002, 0x3f800003, 0x3f800002
164test_end
165
166test msub_s
167    test_op3 msub.s, f0, f1, f2, f0, 0x3f800000, 0x3f800001, 0x3f800001, \
168        0xb4800000, 0xb4800000, 0xb4800000, 0xb4800001
169test_end
170
171#endif
172
173test_suite_end
174