jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
tests/tcg/xtensa: add FP0 group arithmetic tests
Test arithmetic operations for normal, NaN and Inf arguments.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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tests/tcg/xtensa/Makefile
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tests/tcg/xtensa/Makefile
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tests/tcg/xtensa/macros.inc
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tests/tcg/xtensa/macros.inc
···
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s32i a3, a2, 0
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.endm
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.macro dump r
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#ifdef DEBUG
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.data
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.align 4
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1: .word 0
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.text
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movi a4, 1b
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s32i a2, a4, 0
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movi a2, 4
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movi a3, 1
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movi a5, 4
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simcall
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movi a4, 1b
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l32i a2, a4, 0
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#endif
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.endm
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#define glue(a, b) _glue(a, b)
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#define _glue(a, b) a ## b
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tests/tcg/xtensa/test_fp0_arith.S
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tests/tcg/xtensa/test_fp0_arith.S
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#include "macros.inc"
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test_suite fp0_arith
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#if XCHAL_HAVE_FP
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.macro movfp fr, v
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movi a2, \v
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wfr \fr, a2
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.endm
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.macro check_res fr, r
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rfr a2, \fr
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dump a2
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movi a3, \r
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assert eq, a2, a3
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rur a2, fsr
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assert eqi, a2, 0
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.endm
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.macro test_op2_rm op, fr0, fr1, fr2, v0, v1, r
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movi a2, 0
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wur a2, fsr
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movfp \fr0, \v0
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movfp \fr1, \v1
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\op \fr2, \fr0, \fr1
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check_res \fr2, \r
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.endm
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.macro test_op3_rm op, fr0, fr1, fr2, fr3, v0, v1, v2, r
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movi a2, 0
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wur a2, fsr
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movfp \fr0, \v0
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movfp \fr1, \v1
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movfp \fr2, \v2
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\op \fr0, \fr1, \fr2
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check_res \fr3, \r
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.endm
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.macro test_op2_ex op, fr0, fr1, fr2, v0, v1, rm, r
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movi a2, \rm
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wur a2, fcr
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test_op2_rm \op, \fr0, \fr1, \fr2, \v0, \v1, \r
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movi a2, (\rm) | 0x7c
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wur a2, fcr
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test_op2_rm \op, \fr0, \fr1, \fr2, \v0, \v1, \r
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.endm
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.macro test_op3_ex op, fr0, fr1, fr2, fr3, v0, v1, v2, rm, r
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movi a2, \rm
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wur a2, fcr
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test_op3_rm \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, \r
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movi a2, (\rm) | 0x7c
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wur a2, fcr
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test_op3_rm \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, \r
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.endm
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.macro test_op2 op, fr0, fr1, fr2, v0, v1, r0, r1, r2, r3
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test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 0, \r0
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test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 1, \r1
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test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 2, \r2
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test_op2_ex \op, \fr0, \fr1, \fr2, \v0, \v1, 3, \r3
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.endm
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.macro test_op3 op, fr0, fr1, fr2, fr3, v0, v1, v2, r0, r1, r2, r3
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test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 0, \r0
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test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 1, \r1
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test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 2, \r2
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test_op3_ex \op, \fr0, \fr1, \fr2, \fr3, \v0, \v1, \v2, 3, \r3
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.endm
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.macro test_op2_cpe op
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set_vector kernel, 2f
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movi a2, 0
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wsr a2, cpenable
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1:
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\op f2, f0, f1
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test_fail
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2:
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rsr a2, excvaddr
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movi a3, 1b
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assert eq, a2, a3
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rsr a2, exccause
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movi a3, 32
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assert eq, a2, a3
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set_vector kernel, 0
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movi a2, 1
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wsr a2, cpenable
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.endm
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test add_s
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movi a2, 1
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wsr a2, cpenable
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test_op2 add.s, f0, f1, f2, 0x3fc00000, 0x34400000, \
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0x3fc00002, 0x3fc00001, 0x3fc00002, 0x3fc00001
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test_op2 add.s, f3, f4, f5, 0x3fc00000, 0x34a00000, \
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0x3fc00002, 0x3fc00002, 0x3fc00003, 0x3fc00002
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/* MAX_FLOAT + MAX_FLOAT = +inf/MAX_FLOAT */
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test_op2 add.s, f6, f7, f8, 0x7f7fffff, 0x7f7fffff, \
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0x7f800000, 0x7f7fffff, 0x7f800000, 0x7f7fffff
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test_end
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test add_s_inf
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/* 1 + +inf = +inf */
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test_op2 add.s, f6, f7, f8, 0x3fc00000, 0x7f800000, \
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0x7f800000, 0x7f800000, 0x7f800000, 0x7f800000
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/* +inf + -inf = default NaN */
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test_op2 add.s, f0, f1, f2, 0x7f800000, 0xff800000, \
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0x7fc00000, 0x7fc00000, 0x7fc00000, 0x7fc00000
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test_end
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test add_s_nan
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/* 1 + NaN = NaN */
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test_op2 add.s, f9, f10, f11, 0x3fc00000, 0x7fc00001, \
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0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001
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test_op2 add.s, f12, f13, f14, 0x3fc00000, 0x7f800001, \
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0x7f800001, 0x7f800001, 0x7f800001, 0x7f800001
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/* NaN1 + NaN2 = NaN1 */
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test_op2 add.s, f15, f0, f1, 0x7f800001, 0x7fbfffff, \
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0x7f800001, 0x7f800001, 0x7f800001, 0x7f800001
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test_op2 add.s, f2, f3, f4, 0x7fbfffff, 0x7f800001, \
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0x7fbfffff, 0x7fbfffff, 0x7fbfffff, 0x7fbfffff
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test_op2 add.s, f5, f6, f7, 0x7fc00001, 0x7fbfffff, \
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0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001
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test_op2 add.s, f8, f9, f10, 0x7fbfffff, 0x7fc00001, \
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0x7fbfffff, 0x7fbfffff, 0x7fbfffff, 0x7fbfffff
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test_end
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test sub_s
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test_op2 sub.s, f0, f1, f0, 0x3f800001, 0x33800000, \
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0x3f800000, 0x3f800000, 0x3f800001, 0x3f800000
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test_op2 sub.s, f0, f1, f1, 0x3f800002, 0x33800000, \
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0x3f800002, 0x3f800001, 0x3f800002, 0x3f800001
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/* norm - norm = denorm */
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test_op2 sub.s, f6, f7, f8, 0x00800001, 0x00800000, \
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0x00000001, 0x00000001, 0x00000001, 0x00000001
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test_end
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test mul_s
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test_op2 mul.s, f0, f1, f2, 0x3f800001, 0x3f800001, \
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0x3f800002, 0x3f800002, 0x3f800003, 0x3f800002
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/* MAX_FLOAT/2 * MAX_FLOAT/2 = +inf/MAX_FLOAT */
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test_op2 mul.s, f6, f7, f8, 0x7f000000, 0x7f000000, \
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0x7f800000, 0x7f7fffff, 0x7f800000, 0x7f7fffff
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/* min norm * min norm = 0/denorm */
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test_op2 mul.s, f6, f7, f8, 0x00800001, 0x00800000, \
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0x00000000, 0x00000000, 0x00000001, 0x00000000
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/* inf * 0 = default NaN */
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test_op2 mul.s, f6, f7, f8, 0x7f800000, 0x00000000, \
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0x7fc00000, 0x7fc00000, 0x7fc00000, 0x7fc00000
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test_end
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test madd_s
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test_op3 madd.s, f0, f1, f2, f0, 0, 0x3f800001, 0x3f800001, \
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0x3f800002, 0x3f800002, 0x3f800003, 0x3f800002
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test_end
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test msub_s
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test_op3 msub.s, f0, f1, f2, f0, 0x3f800000, 0x3f800001, 0x3f800001, \
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0xb4800000, 0xb4800000, 0xb4800000, 0xb4800001
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test_end
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#endif
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test_suite_end