github.com/afumu/libc@v0.0.6/musl/src/math/i386/remquo.s (about)

     1  .global remquof
     2  .type remquof,@function
     3  remquof:
     4  	mov 12(%esp),%ecx
     5  	flds 8(%esp)
     6  	flds 4(%esp)
     7  	mov 11(%esp),%dh
     8  	xor 7(%esp),%dh
     9  	jmp 1f
    10  
    11  .global remquol
    12  .type remquol,@function
    13  remquol:
    14  	mov 28(%esp),%ecx
    15  	fldt 16(%esp)
    16  	fldt 4(%esp)
    17  	mov 25(%esp),%dh
    18  	xor 13(%esp),%dh
    19  	jmp 1f
    20  
    21  .global remquo
    22  .type remquo,@function
    23  remquo:
    24  	mov 20(%esp),%ecx
    25  	fldl 12(%esp)
    26  	fldl 4(%esp)
    27  	mov 19(%esp),%dh
    28  	xor 11(%esp),%dh
    29  1:	fprem1
    30  	fnstsw %ax
    31  	sahf
    32  	jp 1b
    33  	fstp %st(1)
    34  	mov %ah,%dl
    35  	shr %dl
    36  	and $1,%dl
    37  	mov %ah,%al
    38  	shr $5,%al
    39  	and $2,%al
    40  	or %al,%dl
    41  	mov %ah,%al
    42  	shl $2,%al
    43  	and $4,%al
    44  	or %al,%dl
    45  	test %dh,%dh
    46  	jns 1f
    47  	neg %dl
    48  1:	movsbl %dl,%edx
    49  	mov %edx,(%ecx)
    50  	ret