37 lines
361 B
ArmAsm
37 lines
361 B
ArmAsm
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.global expf
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expf:
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mov 4(%esp),%eax
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flds 4(%esp)
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shr $23,%eax
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inc %al
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jz 1f
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jmp 0f
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.global exp
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exp:
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mov 8(%esp),%eax
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fldl 4(%esp)
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shl %eax
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cmp $0xffe00000,%eax
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jae 1f
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0: fldl2e
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fmulp
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fst %st(1)
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frndint
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fst %st(2)
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fsubrp
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f2xm1
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fld1
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faddp
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fscale
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fstp %st(1)
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ret
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1: fsts 4(%esp)
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cmpl $0xff800000,4(%esp)
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jnz 1f
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fstp %st(0)
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fldz
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1: ret
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