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46 lines
719 B
ArmAsm
46 lines
719 B
ArmAsm
/* https://github.com/cirosantilli/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_0_0: .double 0.0
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double_1_0: .double 1.0
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LKMC_PROLOGUE
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fldz
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/* ST0 = 0.0 */
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fld1
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/* ST0 = 1.0
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* ST1 = 0.0 */
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/* Swap ST0 and ST1. */
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fxch %st(1)
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/* ST0 = 0.0
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* ST1 = 1.0 */
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fldz
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/* ST0 = 0.0
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* ST1 = 0.0
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* ST2 = 1.0 */
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fcomip %st(1)
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/* ST0 = 0.0
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* ST1 = 1.0 */
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LKMC_ASSERT(je)
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/* Swap ST0 and ST1. */
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fxch %st(1)
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/* ST0 = 1.0
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* ST1 = 0.0 */
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fld1
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/* ST0 = 1.0
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* ST1 = 1.0
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* ST2 = 0.0 */
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fcomip %st(1)
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/* ST0 = 1.0
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* ST1 = 0.0 */
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LKMC_ASSERT(je)
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LKMC_EPILOGUE
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