diff --git a/src/math/i386/asin.s b/src/math/i386/asin.s
index a9f691bf..920d967a 100644
--- a/src/math/i386/asin.s
+++ b/src/math/i386/asin.s
@@ -7,13 +7,10 @@ asinf:
cmp $0x01000000,%eax
jae 1f
# subnormal x, return x with underflow
- fnstsw %ax
- and $16,%ax
- jnz 2f
fld %st(0)
fmul %st(1)
fstps 4(%esp)
-2: ret
+ ret
.global asinl
.type asinl,@function
@@ -30,11 +27,8 @@ asin:
cmp $0x00200000,%eax
jae 1f
# subnormal x, return x with underflow
- fnstsw %ax
- and $16,%ax
- jnz 2f
fsts 4(%esp)
-2: ret
+ ret
1: fld %st(0)
fld1
fsub %st(0),%st(1)
diff --git a/src/math/i386/atan.s b/src/math/i386/atan.s
index d73137b2..a26feae1 100644
--- a/src/math/i386/atan.s
+++ b/src/math/i386/atan.s
@@ -10,8 +10,5 @@ atan:
fpatan
ret
# subnormal x, return x with underflow
-1: fnstsw %ax
- and $16,%ax
- jnz 2f
- fsts 4(%esp)
-2: ret
+1: fsts 4(%esp)
+ ret
diff --git a/src/math/i386/atan2.s b/src/math/i386/atan2.s
index a7d2979b..76b95f31 100644
--- a/src/math/i386/atan2.s
+++ b/src/math/i386/atan2.s
@@ -10,8 +10,5 @@ atan2:
cmp $0x00200000,%eax
jae 1f
# subnormal x, return x with underflow
- fnstsw %ax
- and $16,%ax
- jnz 1f
fsts 4(%esp)
1: ret
diff --git a/src/math/i386/atan2f.s b/src/math/i386/atan2f.s
index 14b88ce5..c9408a90 100644
--- a/src/math/i386/atan2f.s
+++ b/src/math/i386/atan2f.s
@@ -10,9 +10,6 @@ atan2f:
cmp $0x01000000,%eax
jae 1f
# subnormal x, return x with underflow
- fnstsw %ax
- and $16,%ax
- jnz 1f
fld %st(0)
fmul %st(1)
fstps 4(%esp)
diff --git a/src/math/i386/atanf.s b/src/math/i386/atanf.s
index 8caddefa..893beac5 100644
--- a/src/math/i386/atanf.s
+++ b/src/math/i386/atanf.s
@@ -10,10 +10,7 @@ atanf:
fpatan
ret
# subnormal x, return x with underflow
-1: fnstsw %ax
- and $16,%ax
- jnz 2f
- fld %st(0)
+1: fld %st(0)
fmul %st(1)
fstps 4(%esp)
-2: ret
+ ret
diff --git a/src/math/i386/exp.s b/src/math/i386/exp.s
index c7aa5b6e..df87c497 100644
--- a/src/math/i386/exp.s
+++ b/src/math/i386/exp.s
@@ -7,13 +7,10 @@ expm1f:
cmp $0x01000000,%eax
jae 1f
# subnormal x, return x with underflow
- fnstsw %ax
- and $16,%ax
- jnz 2f
fld %st(0)
fmul %st(1)
fstps 4(%esp)
-2: ret
+ ret
.global expm1l
.type expm1l,@function
@@ -30,11 +27,8 @@ expm1:
cmp $0x00200000,%eax
jae 1f
# subnormal x, return x with underflow
- fnstsw %ax
- and $16,%ax
- jnz 2f
fsts 4(%esp)
-2: ret
+ ret
1: fldl2e
fmulp
mov $0xc2820000,%eax
diff --git a/src/math/i386/log1p.s b/src/math/i386/log1p.s
index 6b6929c7..354f391a 100644
--- a/src/math/i386/log1p.s
+++ b/src/math/i386/log1p.s
@@ -16,9 +16,6 @@ log1p:
fyl2x
ret
# subnormal x, return x with underflow
-2: fnstsw %ax
- and $16,%ax
- jnz 1f
- fsts 4(%esp)
+2: fsts 4(%esp)
fstp %st(1)
-1: ret
+ ret
diff --git a/src/math/i386/log1pf.s b/src/math/i386/log1pf.s
index c0bcd30f..4d3484cd 100644
--- a/src/math/i386/log1pf.s
+++ b/src/math/i386/log1pf.s
@@ -16,10 +16,7 @@ log1pf:
fyl2x
ret
# subnormal x, return x with underflow
-2: fnstsw %ax
- and $16,%ax
- jnz 1f
- fxch
+2: fxch
fmul %st(1)
fstps 4(%esp)
-1: ret
+ ret
