divqu.s

来自「一个C源代码分析器」· S 代码 · 共 58 行

      /* This file is generated from divrem.m4; DO NOT EDIT! */
/* For each N divided by D, we do:
      result = (double) N / (double) D
   Then, for each N mod D, we do:
      result = N - (D * divMODE (N, D))

   FIXME:
   The q and qu versions won't deal with operands > 50 bits.  We also
   don't check for divide by zero.  */

#include "DEFS.h"
#if 0
/* We do not handle div by zero yet.  */
#include <machine/pal.h>
#endif
#include <regdef.h>






FUNC__(divqu)
	! First set up the dividend.
	
	stq t10,0(sp)
	ldt $f10,0(sp)
	cvtqt $f10,$f10
		ldit	$f26, 18446744073709551616.0
	addt	$f26, $f10, $f26
	fcmovlt	$f10, $f26, $f10


	! Then set up the divisor.
	
	stq t11,0(sp)
	ldt $f1,0(sp)
	cvtqt $f1,$f1
		ldit	$f26, 18446744073709551616.0
	addt	$f26, $f1, $f26
	fcmovlt	$f1, $f26, $f1


	! Do the division.
	divt $f10,$f1,$f10
	cvttqc $f10,$f10

	! Put the result in t12.
	stt $f10,0(sp)
	ldq t12,0(sp)
	

	

	lda sp,16(sp)
	ret zero,(t9),1
	.end NAME__(divqu)