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25 lines
443 B
ArmAsm
25 lines
443 B
ArmAsm
/* https://cirosantilli.com/linux-kernel-module-cheat#x86-x87-fpu-instructions */
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#include <lkmc.h>
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.data
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double_1: .double 1.0
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double_minus_1: .double -1.0
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LKMC_PROLOGUE
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/* -(1) == -1 */
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fldl double_1
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fchs
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fldl double_minus_1
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fcomip %st(1)
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LKMC_ASSERT(je)
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finit
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/* -(-1) == 1 */
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fldl double_minus_1
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fchs
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fldl double_1
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fcomip %st(1)
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LKMC_ASSERT(je)
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finit
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LKMC_EPILOGUE
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