#if !defined(_SOFT_FLOAT) && !defined(__NO_FPRS__) .global feclearexcept .type feclearexcept,@function feclearexcept: andis. 3,3,0x3e00 /* if (r3 & FE_INVALID) r3 |= all_invalid_flags */ andis. 0,3,0x2000 stwu 1,-16(1) beq- 0,1f oris 3,3,0x01f8 ori 3,3,0x0700 1: /* * note: fpscr contains various fpu status and control * flags and we dont check if r3 may alter other flags * than the exception related ones * ufpscr &= ~r3 */ mffs 0 stfd 0,8(1) lwz 9,12(1) andc 9,9,3 stw 9,12(1) lfd 0,8(1) mtfsf 255,0 /* return 0 */ li 3,0 addi 1,1,16 blr .global feraiseexcept .type feraiseexcept,@function feraiseexcept: andis. 3,3,0x3e00 /* if (r3 & FE_INVALID) r3 |= software_invalid_flag */ andis. 0,3,0x2000 stwu 1,-16(1) beq- 0,1f ori 3,3,0x0400 1: /* fpscr |= r3 */ mffs 0 stfd 0,8(1) lwz 9,12(1) or 9,9,3 stw 9,12(1) lfd 0,8(1) mtfsf 255,0 /* return 0 */ li 3,0 addi 1,1,16 blr .global fetestexcept .type fetestexcept,@function fetestexcept: andis. 3,3,0x3e00 /* return r3 & fpscr */ stwu 1,-16(1) mffs 0 stfd 0,8(1) lwz 9,12(1) addi 1,1,16 and 3,3,9 blr .global fegetround .type fegetround,@function fegetround: /* return fpscr & 3 */ stwu 1,-16(1) mffs 0 stfd 0,8(1) lwz 3,12(1) addi 1,1,16 clrlwi 3,3,30 blr .global __fesetround .hidden __fesetround .type __fesetround,@function __fesetround: /* * note: invalid input is not checked, r3 < 4 must hold * fpscr = (fpscr & -4U) | r3 */ stwu 1,-16(1) mffs 0 stfd 0,8(1) lwz 9,12(1) clrrwi 9,9,2 or 9,9,3 stw 9,12(1) lfd 0,8(1) mtfsf 255,0 /* return 0 */ li 3,0 addi 1,1,16 blr .global fegetenv .type fegetenv,@function fegetenv: /* *r3 = fpscr */ mffs 0 stfd 0,0(3) /* return 0 */ li 3,0 blr .global fesetenv .type fesetenv,@function fesetenv: cmpwi 3, -1 bne 1f mflr 4 bl 2f .zero 8 2: mflr 3 mtlr 4 1: /* fpscr = *r3 */ lfd 0,0(3) mtfsf 255,0 /* return 0 */ li 3,0 blr #endif