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Unified Diff: fusl/src/math/i386/exp.s

Issue 1724903002: [fusl] Remove code for unsupported architectures (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 4 years, 10 months ago
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Index: fusl/src/math/i386/exp.s
diff --git a/fusl/src/math/i386/exp.s b/fusl/src/math/i386/exp.s
deleted file mode 100644
index c7aa5b6eaa37a8385ff3998cf5b690884295618d..0000000000000000000000000000000000000000
--- a/fusl/src/math/i386/exp.s
+++ /dev/null
@@ -1,152 +0,0 @@
-.global expm1f
-.type expm1f,@function
-expm1f:
- flds 4(%esp)
- mov 4(%esp),%eax
- add %eax,%eax
- 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
-
-.global expm1l
-.type expm1l,@function
-expm1l:
- fldt 4(%esp)
- jmp 1f
-
-.global expm1
-.type expm1,@function
-expm1:
- fldl 4(%esp)
- mov 8(%esp),%eax
- add %eax,%eax
- cmp $0x00200000,%eax
- jae 1f
- # subnormal x, return x with underflow
- fnstsw %ax
- and $16,%ax
- jnz 2f
- fsts 4(%esp)
-2: ret
-1: fldl2e
- fmulp
- mov $0xc2820000,%eax
- push %eax
- flds (%esp)
- pop %eax
- fucomp %st(1)
- fnstsw %ax
- sahf
- fld1
- jb 1f
- # x*log2e < -65, return -1 without underflow
- fstp %st(1)
- fchs
- ret
-1: fld %st(1)
- fabs
- fucom %st(1)
- fnstsw %ax
- fstp %st(0)
- fstp %st(0)
- sahf
- ja 1f
- f2xm1
- ret
-1: call 1f
- fld1
- fsubrp
- ret
-
-.global exp2f
-.type exp2f,@function
-exp2f:
- flds 4(%esp)
- jmp 1f
-
-.global exp2l
-.global __exp2l
-.hidden __exp2l
-.type exp2l,@function
-exp2l:
-__exp2l:
- fldt 4(%esp)
- jmp 1f
-
-.global expf
-.type expf,@function
-expf:
- flds 4(%esp)
- jmp 2f
-
-.global exp
-.type exp,@function
-exp:
- fldl 4(%esp)
-2: fldl2e
- fmulp
- jmp 1f
-
-.global exp2
-.type exp2,@function
-exp2:
- fldl 4(%esp)
-1: sub $12,%esp
- fld %st(0)
- fstpt (%esp)
- mov 8(%esp),%ax
- and $0x7fff,%ax
- cmp $0x3fff+13,%ax
- jb 4f # |x| < 8192
- cmp $0x3fff+15,%ax
- jae 3f # |x| >= 32768
- fsts (%esp)
- cmpl $0xc67ff800,(%esp)
- jb 2f # x > -16382
- movl $0x5f000000,(%esp)
- flds (%esp) # 0x1p63
- fld %st(1)
- fsub %st(1)
- faddp
- fucomp %st(1)
- fnstsw
- sahf
- je 2f # x - 0x1p63 + 0x1p63 == x
- movl $1,(%esp)
- flds (%esp) # 0x1p-149
- fdiv %st(1)
- fstps (%esp) # raise underflow
-2: fld1
- 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)
- add $12,%esp
- ret
-3: xor %eax,%eax
-4: cmp $0x3fff-64,%ax
- fld1
- jb 1b # |x| < 0x1p-64
- fstpt (%esp)
- fistl 8(%esp)
- fildl 8(%esp)
- fsubrp %st(1)
- addl $0x3fff,8(%esp)
- f2xm1
- fld1
- faddp # 2^(x-rint(x))
- fldt (%esp) # 2^rint(x)
- fmulp
- add $12,%esp
- ret
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