diff options
Diffstat (limited to 'mdk-stage1/dietlibc/i386/exp2.S')
| -rw-r--r-- | mdk-stage1/dietlibc/i386/exp2.S | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/i386/exp2.S b/mdk-stage1/dietlibc/i386/exp2.S new file mode 100644 index 000000000..d5389a22e --- /dev/null +++ b/mdk-stage1/dietlibc/i386/exp2.S @@ -0,0 +1,18 @@ +.text +.type exp2,@function +.global exp2 +exp2: # note: exp2(x) = 2^x + fldl 4(%esp) # x + fld %st(0) # x x + frndint # int(x) x + fxch # x int(x) + fsub %st(1),%st(0) # frac(x) int(x) + f2xm1 # 2^(fract(x))-1 int(x) + fld1 # 1 2^(fract(x))-1 int(x) + faddp %st(0),%st(1) # 2^(fract(x)) int(x) + fscale # 2^x int(x) + fstp %st(1) # 2^x + ret + +.ende: +.size exp2,.ende-exp2 |