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-rw-r--r--src/math/i386/expl.s4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/math/i386/expl.s b/src/math/i386/expl.s
index 3f2f707d..8ceb40d2 100644
--- a/src/math/i386/expl.s
+++ b/src/math/i386/expl.s
@@ -1,6 +1,7 @@
# exp(x) = 2^hi + 2^hi (2^lo - 1)
# where hi+lo = log2e*x with 128bit precision
# exact log2e*x calculation depends on nearest rounding mode
+# using the exact multiplication method of Dekker and Veltkamp
.global expl
.type expl,@function
@@ -35,7 +36,6 @@ expl:
# should be 0x1.71547652b82fe178p0 == 0x3fff b8aa3b29 5c17f0bc
# it will be wrong on non-nearest rounding mode
3: fldl2e
-# subl $32, %esp
subl $44, %esp
# hi = log2e_hi*x
# 2^hi = exp2l(hi)
@@ -54,7 +54,7 @@ expl:
fldt 16(%esp)
# fpu stack: 2^hi x hi
# exact mult: x*log2e
- fld %st(1) # x
+ fld %st(1)
# c = 0x1p32+1
pushl $0x41f00000
pushl $0x00100000