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authorSzabolcs Nagy <nsz@port70.net>2012-12-16 17:28:18 +0100
committerSzabolcs Nagy <nsz@port70.net>2012-12-16 17:28:18 +0100
commit525ad96e0ef6e46b6ac28438ef2ffa1d5317fb64 (patch)
tree2f0813204b99309ab1d4b1ffe250ccf84514c1a9 /src/math/x86_64/expl.s
parent1d7c4f8f93d82ad5d8f650e71bcd99201965d9ad (diff)
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math: move x86_64 exp2l implementation to exp2l.s from expl.s
Diffstat (limited to 'src/math/x86_64/expl.s')
-rw-r--r--src/math/x86_64/expl.s83
1 files changed, 0 insertions, 83 deletions
diff --git a/src/math/x86_64/expl.s b/src/math/x86_64/expl.s
index 740bc779..e69de29b 100644
--- a/src/math/x86_64/expl.s
+++ b/src/math/x86_64/expl.s
@@ -1,83 +0,0 @@
-.global expm1l
-.type expm1l,@function
-expm1l:
-	fldt 8(%rsp)
-1:	fldl2e
-	fmulp
-	fld1
-	fld %st(1)
-	fabs
-	fucom %st(1)
-	fnstsw %ax
-	fstp %st(0)
-	fstp %st(0)
-	sahf
-	ja 1f
-	f2xm1
-	ret
-1:	push %rax
-	call 1f
-	pop %rax
-	fld1
-	fsubrp
-	ret
-
-.global expl
-.type expl,@function
-expl:
-	fldt 8(%rsp)
-	fldl2e
-	fmulp
-	jmp 1f
-
-.global exp2l
-.type exp2l,@function
-exp2l:
-	fldt 8(%rsp)
-1:	mov $0x467ff000,%eax
-	mov %eax,-16(%rsp)
-	mov $0x80000000,%eax
-	mov %eax,-20(%rsp)
-	xor %eax,%eax
-	mov %eax,-24(%rsp)
-	flds -16(%rsp)    # 16380
-	fld %st(1)
-	fabs
-	fucom %st(1)
-	fnstsw
-	fstp %st(0)
-	fstp %st(0)
-	sahf
-	ja 3f             # |x| > 16380
-	jp 2f             # x is nan (avoid invalid except in fistp)
-	fld %st(0)
-	fistpl -16(%rsp)
-	fildl -16(%rsp)
-	fxch %st(1)
-	fsub %st(1)
-	mov $0x3fff,%eax
-	add %eax,-16(%rsp)
-	f2xm1
-	fld1
-	faddp             # 2^(x-rint(x))
-	fldt -24(%rsp)    # 2^rint(x)
-	fmulp
-2:	fstp %st(1)
-	ret
-
-3:	fld %st(0)
-	fstpt -24(%rsp)
-	fld1
-	mov -15(%rsp),%ax
-	and $0x7fff,%ax
-	cmp $0x7fff,%ax
-	je 1f             # x = +-inf
-	fld %st(1)
-	frndint
-	fxch %st(2)
-	fsub %st(2)       # st(0)=x-rint(x), st(1)=1, st(2)=rint(x)
-	f2xm1
-	faddp             # 2^(x-rint(x))
-1:	fscale
-	fstp %st(1)
-	ret