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42 lines
1006 B
ArmAsm
42 lines
1006 B
ArmAsm
/* https://cirosantilli.com/linux-kernel-module-cheat#armv8-aarch32-vcvta-instruction */
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#include <lkmc.h>
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LKMC_PROLOGUE
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/* SIMD positive. */
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.data
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vcvta_positive_0: .float 1.25, 2.5, 3.75, 4.0
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vcvta_positive_expect: .word 1, 3, 4, 4
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.bss
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vcvta_positive_result: .skip 0x10
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.text
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ldr r0, =vcvta_positive_0
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vld1.32 {q0}, [r0]
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vcvta.u32.f32 q1, q0
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ldr r0, =vcvta_positive_result
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vst1.32 {q1}, [r0]
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LKMC_ASSERT_MEMCMP(
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vcvta_positive_result,
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vcvta_positive_expect,
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=0x10
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)
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/* SIMD negative. */
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.data
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vcvta_negative_0: .float -1.25, -2.5, -3.75, -4.0
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vcvta_negative_expect: .word -1, -3, -4, -4
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.bss
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vcvta_negative_result: .skip 0x10
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.text
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ldr r0, =vcvta_negative_0
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vld1.32 {q0}, [r0]
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vcvta.s32.f32 q1, q0
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ldr r0, =vcvta_negative_result
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vst1.32 {q1}, [r0]
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LKMC_ASSERT_MEMCMP(
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vcvta_negative_result,
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vcvta_negative_expect,
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=0x10
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)
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LKMC_EPILOGUE
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