32 lines
390 B
ArmAsm
32 lines
390 B
ArmAsm
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/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
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#include "libc/asm.h"
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.data
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LCW1:
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.word 0
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LCW2:
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.word 0
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LC0:
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.double 0d1.0e+00
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.text
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MK_C_SYM(__pow2)
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MK_C_SYM(pow2)
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fldl 4(%esp)
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fstcw LCW1
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fstcw LCW2
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fwait
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andw $0xf3ff,LCW2
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orw $0x0400,LCW2
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fldcw LCW2
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fldl %st(0)
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frndint
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fldcw LCW1
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fxch %st(1)
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fsub %st(1),%st
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f2xm1
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faddl LC0
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fscale
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fstp %st(1)
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ret
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