2010-03-03 15:27:30 +01:00
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/* fpu_cw_get() - get FPU control word Author: Erik van der Kouwe */
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/* fpu_cw_set() - set FPU control word 9 Dec 2009 */
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2010-08-17 18:44:07 +02:00
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#include <machine/asm.h>
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2010-03-03 15:27:30 +01:00
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/* u16_t fpu_cw_get(void) */
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2010-08-17 18:44:07 +02:00
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ENTRY(fpu_cw_get)
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2010-03-03 15:27:30 +01:00
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/* clear unused bits just to be sure */
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xor %eax, %eax
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push %eax
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fstcw (%esp)
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pop %eax
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ret
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/* void fpu_cw_set(u16_t fpu_cw) */
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2010-08-17 18:44:07 +02:00
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ENTRY(fpu_cw_set)
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2010-03-03 15:27:30 +01:00
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/* load control word from parameter */
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fldcw 4(%esp)
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ret
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