// x_accum-=x_min;
"subl %6, %%edx \n\t"
// if(x_accum<=0) {
"jnc x2 \n\t"
"jnc 2f \n\t"
// xaccum+=dst_w;
"addl %7, %%edx \n\t"
// src++;
"addl $2, %%eax \n\t"
"x2: \n\t"
"2: \n\t"
"decl %8 \n\t"
"jnz 1b \n\t"
"popl %%ebx \n\t"