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17 lines
323 B
ArmAsm
17 lines
323 B
ArmAsm
/* https://cirosantilli.com/linux-kernel-module-cheat#x86-exchange-instructions */
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#include <lkmc.h>
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LKMC_PROLOGUE
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mov $0, %r12
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mov $1, %r13
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xchg %r13, %r12
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LKMC_ASSERT_EQ(%r12, $1)
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LKMC_ASSERT_EQ(%r13, $0)
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xchg %r13, %r12
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LKMC_ASSERT_EQ(%r12, $0)
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LKMC_ASSERT_EQ(%r13, $1)
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LKMC_EPILOGUE
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