xref: /openbmc/qemu/tests/tcg/xtensa/test_fp0_div.S (revision b91a0fa7)
1#include "macros.inc"
2#include "fpu.h"
3
4test_suite fp0_div
5
6#if XCHAL_HAVE_FP_DIV
7
8.macro  divs_seq q, a, b, r, y, y0, an, bn, e, ex
9    div0.s      \y0, \b
10    nexp01.s    \bn, \b
11    const.s     \e, 1
12    maddn.s     \e, \bn, \y0
13    mov.s       \y, \y0
14    mov.s       \ex, \b
15    nexp01.s    \an, \a
16    maddn.s     \y, \e, \y0
17    const.s     \e, 1
18    const.s     \q, 0
19    neg.s       \r, \an
20    maddn.s     \e, \bn, \y
21    maddn.s     \q, \r, \y0
22    mkdadj.s    \ex, \a
23    maddn.s     \y, \e, \y
24    maddn.s     \r, \bn, \q
25    const.s     \e, 1
26    maddn.s     \e, \bn, \y
27    maddn.s     \q, \r, \y
28    neg.s       \r, \an
29    maddn.s     \y, \e, \y
30    maddn.s     \r, \bn, \q
31    addexpm.s   \q, \ex
32    addexp.s    \y, \ex
33    divn.s      \q, \r, \y
34.endm
35
36.macro div_s fr0, fr1, fr2
37    divs_seq    \fr0, \fr1, \fr2, f9, f10, f11, f12, f13, f14, f15
38.endm
39
40.macro movfp fr, v
41    movi        a2, \v
42    wfr         \fr, a2
43.endm
44
45.macro check_res fr, r, sr
46    rfr         a2, \fr
47    dump        a2
48    movi        a3, \r
49    assert      eq, a2, a3
50    rur         a2, fsr
51    movi        a3, \sr
52    assert      eq, a2, a3
53.endm
54
55test div_s
56    movi        a2, 1
57    wsr         a2, cpenable
58
59    test_op2    div_s, f0, f1, f2, 0x40000000, 0x40400000, \
60        0x3f2aaaab, 0x3f2aaaaa, 0x3f2aaaab, 0x3f2aaaaa, \
61             FSR_I,      FSR_I,      FSR_I,      FSR_I
62    test_op2    div_s, f3, f4, f5, F32_1, F32_0, \
63        F32_PINF, F32_PINF, F32_PINF, F32_PINF, \
64           FSR_Z,    FSR_Z,    FSR_Z,    FSR_Z
65    test_op2    div_s, f6, f7, f8, F32_0, F32_0, \
66        F32_DNAN, F32_DNAN, F32_DNAN, F32_DNAN, \
67           FSR_V,    FSR_V,    FSR_V,    FSR_V
68
69    /* MAX_FLOAT / 0.5 = +inf/MAX_FLOAT  */
70    test_op2    div_s, f0, f1, f2, F32_MAX, F32_0_5, \
71        F32_PINF, F32_MAX, F32_PINF, F32_MAX, \
72          FSR_OI,  FSR_OI,   FSR_OI,  FSR_OI
73
74    /* 0.5 / MAX_FLOAT = denorm  */
75    test_op2    div_s, f0, f1, f2, F32_0_5, F32_MAX, \
76        0x00100000, 0x00100000, 0x00100001, 0x00100000, \
77            FSR_UI,     FSR_UI,     FSR_UI,     FSR_UI
78test_end
79
80#endif
81
82test_suite_end
83