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35 lines
891 B
ArmAsm
35 lines
891 B
ArmAsm
/* https://cirosantilli.com/linux-kernel-module-cheat#x86-sse-packed-arithmetic-instructions
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*
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* Add a few floating point numbers in one go (P == packaged).
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*/
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#include <lkmc.h>
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LKMC_PROLOGUE
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.data
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.align 16
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addps_input0: .float 1.5, 2.5, 3.5, 4.5
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addps_input1: .float 5.5, 6.5, 7.5, 8.5
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addps_expect: .float 7.0, 9.0, 11.0, 13.0
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addpd_input0: .double 1.5, 2.5
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addpd_input1: .double 5.5, 6.5
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addpd_expect: .double 7.0, 9.0
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.bss
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.align 16
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output: .skip 16
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.text
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/* 4x 32-bit */
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movaps addps_input0, %xmm0
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movaps addps_input1, %xmm1
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addps %xmm1, %xmm0
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movaps %xmm0, output
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LKMC_ASSERT_MEMCMP(output, addps_expect, $0x10)
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/* 2x 64-bit */
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movaps addpd_input0, %xmm0
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movaps addpd_input1, %xmm1
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addpd %xmm1, %xmm0
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movaps %xmm0, output
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LKMC_ASSERT_MEMCMP(output, addpd_expect, $0x10)
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LKMC_EPILOGUE
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