Dump of assembler code for function fesetround:
   0x0000000010000b6c <+0>:	std     r31,-8(r1)
   0x0000000010000b70 <+4>:	stdu    r1,-80(r1)
   0x0000000010000b74 <+8>:	mr      r31,r1
   0x0000000010000b78 <+12>:	mr      r9,r3
   0x0000000010000b7c <+16>:	stw     r9,48(r31)
   0x0000000010000b80 <+20>:	lwz     r9,48(r31)
   0x0000000010000b84 <+24>:	rlwinm  r9,r9,0,0,29
   0x0000000010000b88 <+28>:	extsw   r9,r9
=> 0x0000000010000b8c <+32>:	cmpdi   r9,0
   0x0000000010000b90 <+36>:	beq     0x10000b9c <fesetround+48>
   0x0000000010000b94 <+40>:	li      r9,-1
   0x0000000010000b98 <+44>:	b       0x10000bd4 <fesetround+104>
   0x0000000010000b9c <+48>:	mffs    f0
   0x0000000010000ba0 <+52>:	stfd    f0,32(r31)
   0x0000000010000ba4 <+56>:	lwz     r9,32(r31)
   0x0000000010000ba8 <+60>:	rlwinm  r9,r9,0,0,29
   0x0000000010000bac <+64>:	clrldi  r9,r9,32
   0x0000000010000bb0 <+68>:	stw     r9,32(r31)
   0x0000000010000bb4 <+72>:	lwz     r10,32(r31)
   0x0000000010000bb8 <+76>:	lwz     r9,48(r31)
   0x0000000010000bbc <+80>:	or      r9,r10,r9
   0x0000000010000bc0 <+84>:	clrldi  r9,r9,32
   0x0000000010000bc4 <+88>:	stw     r9,32(r31)
   0x0000000010000bc8 <+92>:	lfd     f0,32(r31)
   0x0000000010000bcc <+96>:	mtfsf   255,f0
   0x0000000010000bd0 <+100>:	li      r9,0
   0x0000000010000bd4 <+104>:	mr      r3,r9
   0x0000000010000bd8 <+108>:	addi    r1,r31,80
   0x0000000010000bdc <+112>:	ld      r31,-8(r1)
   0x0000000010000be0 <+116>:	blr
   0x0000000010000be4 <+120>:	.long 0x0
   0x0000000010000be8 <+124>:	.long 0x0
   0x0000000010000bec <+128>:	lwz     r0,1(r1)