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-rw-r--r--sysdeps/i386/fpu/s_atanf.S33
1 files changed, 32 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/s_atanf.S b/sysdeps/i386/fpu/s_atanf.S
index 70232c8..da3c2a6 100644
--- a/sysdeps/i386/fpu/s_atanf.S
+++ b/sysdeps/i386/fpu/s_atanf.S
@@ -7,10 +7,41 @@
RCSID("$NetBSD: s_atanf.S,v 1.3 1995/05/08 23:51:33 jtc Exp $")
+ .section .rodata.cst4,"aM",@progbits,4
+
+ .p2align 2
+ .type flt_min,@object
+flt_min: .byte 0, 0, 0x80, 0
+ ASM_SIZE_DIRECTIVE(flt_min)
+
+#ifdef PIC
+# define MO(op) op##@GOTOFF(%ecx)
+#else
+# define MO(op) op
+#endif
+
+ .text
ENTRY(__atanf)
+#ifdef PIC
+ LOAD_PIC_REG (cx)
+#endif
flds 4(%esp)
fld1
fpatan
- ret
+ flds MO(flt_min)
+ fld %st(1)
+ fabs
+ fucompp
+ fnstsw
+ sahf
+ jnc 1f
+ subl $4, %esp
+ cfi_adjust_cfa_offset (4)
+ fld %st(0)
+ fmul %st(0)
+ fstps (%esp)
+ addl $4, %esp
+ cfi_adjust_cfa_offset (-4)
+1: ret
END (__atanf)
weak_alias (__atanf, atanf)