// File: chhylp123[P]hifiasm/Overlaps.cpp
// Function: asg_arc_del_short_diploid_by_length(asg_t*, float, int, ma_hit_t_alloc*, long long, unsigned int, int, int, int, R_to_U*)
int asg_arc_del_short_diploid_by_length(asg_t *g, float drop_ratio, int max_ext, 
ma_hit_t_alloc* reverse_sources, long long miniedgeLen, uint32_t stops_threshold,
int if_skip_bubble, int if_drop, int if_check_hap, R_to_U* ruIndex)
{
    double startTime = Get_T();
    kvec_t(uint64_t) b;
    memset(&b, 0, sizeof(b));

	uint32_t v, n_vtx = g->n_seq * 2;
    long long n_cut = 0;
    
    for (v = 0; v < n_vtx; ++v) 
    {
        if(if_skip_bubble && g->seq_vis[v] != 0) continue;
        if(if_drop && g->seq[v>>1].c == ALTER_LABLE) continue;
        asg_arc_t *av = asg_arc_a(g, v);
        uint32_t nv = asg_arc_n(g, v);
        if (nv < 2) continue;
        uint64_t i;
        for (i = 0; i < nv; ++i)
        {
            kv_push(uint64_t, b, (uint64_t)((uint64_t)av[i].ol << 32 | (av - g->arc + i)));   
        }
	}

    radix_sort_arch64(b.a, b.a + b.n);

    uint64_t k;
    for (k = 0; k < b.n; k++)
    {
        
        asg_arc_t *a = &g->arc[(uint32_t)b.a[k]];
		///v is self id, w is the id of another end
		uint32_t i, iv, iw, v = (a->ul)>>32, w = a->v^1, to_del = 0;
		uint32_t nv = asg_arc_n(g, v), nw = asg_arc_n(g, w), kv, kw;
		uint32_t ov_max = 0, ow_max = 0, ov_max_i = 0, ow_max_i = 0;
		asg_arc_t *av, *aw;
		///nv must be >= 2
		if (nv == 1 && nw == 1) continue;
        av = asg_arc_a(g, v);
		aw = asg_arc_a(g, w);


        ///calculate the longest edge for v and w
		for (i = 0, kv = 0; i < nv; ++i) {
			if (av[i].del) continue;
			if (ov_max < av[i].ol) ov_max = av[i].ol, ov_max_i = i; 
			++kv;
		}
		if (kv >= 2 && a->ol > ov_max * drop_ratio) continue;


		for (i = 0, kw = 0; i < nw; ++i) {
			if (aw[i].del) continue;
			if (ow_max < aw[i].ol) ow_max = aw[i].ol, ow_max_i = i;
			++kw;
		}
		if (kw >= 2 && a->ol > ow_max * drop_ratio) continue;
		///if (kv == 1 && kw == 1) continue;
        if (kv <= 1 && kw <= 1) continue;


        ///to see which one is the current edge (from v and w)
		for (iv = 0; iv < nv; ++iv)
			if (av[iv].v == (w^1)) break;
		for (iw = 0; iw < nw; ++iw)
			if (aw[iw].v == (v^1)) break;
        ///if one edge has been deleted, it should be deleted in both direction
        if (av[iv].del && aw[iw].del) continue;

        ///kv and kw is the avialiable 
		if (kv > 1 && kw > 1) {
			if (a->ol < ov_max * drop_ratio && a->ol < ow_max * drop_ratio)
				to_del = 1;
            if(if_check_hap == 1 && to_del == 1)
            {
                
                if(check_if_diploid_primary_complex(av[ov_max_i].v, w^1, g, reverse_sources, 
                miniedgeLen, stops_threshold, if_drop, ruIndex) == 1 
                   || 
                   check_if_diploid_primary_complex(aw[ow_max_i].v, v^1, g, reverse_sources, 
                miniedgeLen, stops_threshold, if_drop, ruIndex) == 1)
                {
                    to_del = 0;
                }
            }
        
		} else if (kw == 1) {
			if (asg_topocut_aux(g, w^1, max_ext) < max_ext) to_del = 1;
            ///kv > 1
            if(if_check_hap == 1 && to_del == 1)
            {
                if(check_if_diploid_primary_complex(av[ov_max_i].v, w^1, g, reverse_sources, 
                miniedgeLen, stops_threshold, if_drop, ruIndex) == 1)
                {
                    to_del = 0;
                }
            }
		} else if (kv == 1) {
			if (asg_topocut_aux(g, v^1, max_ext) < max_ext) to_del = 1;
            ///kw > 1
            if(if_check_hap == 1 && to_del == 1)
            {
                if(check_if_diploid_primary_complex(aw[ow_max_i].v, v^1, g, reverse_sources, 
                miniedgeLen, stops_threshold, if_drop, ruIndex) == 1)
                {
                    to_del = 0;
                }
            }
		}
		if (to_del)
			av[iv].del = aw[iw].del = 1, ++n_cut;
        
    }
    
    free(b.a);
	if (n_cut) 
    {
		asg_cleanup(g);
		asg_symm(g);
	}

    if(VERBOSE >= 1)
    {
        fprintf(stderr, "[M::%s] removed %lld short overlaps\n", __func__, n_cut);
        fprintf(stderr, "[M::%s] takes %0.2f s\n\n", __func__, Get_T()-startTime);
    }
	return n_cut;
}

// Assembly:
pushq %rbp
movq %rsp, %rbp
subq $0xf0, %rsp
movq 0x20(%rbp), %rax
movl 0x18(%rbp), %eax
movl 0x10(%rbp), %eax
movq %rdi, -0x8(%rbp)
movss %xmm0, -0xc(%rbp)
movl %esi, -0x10(%rbp)
movq %rdx, -0x18(%rbp)
movq %rcx, -0x20(%rbp)
movl %r8d, -0x24(%rbp)
movl %r9d, -0x28(%rbp)
callq 0x2510
movsd %xmm0, -0x30(%rbp)
leaq -0x48(%rbp), %rdi
xorl %esi, %esi
movl $0x18, %edx
callq 0x2100
movq -0x8(%rbp), %rax
movl 0x14(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
shll %eax
movl %eax, -0x50(%rbp)
movq $0x0, -0x58(%rbp)
movl $0x0, -0x4c(%rbp)
movl -0x4c(%rbp), %eax
cmpl -0x50(%rbp), %eax
jae 0xdd5e8
cmpl $0x0, -0x28(%rbp)
je 0xdd496
movq -0x8(%rbp), %rax
movq 0x30(%rax), %rax
movl -0x4c(%rbp), %ecx
movzbl (%rax,%rcx), %eax
cmpl $0x0, %eax
je 0xdd496
jmp 0xdd5da
cmpl $0x0, 0x10(%rbp)
je 0xdd4ba
movq -0x8(%rbp), %rax
movq 0x20(%rax), %rax
movl -0x4c(%rbp), %ecx
shrl %ecx
movl %ecx, %ecx
movzbl 0x4(%rax,%rcx,8), %eax
cmpl $0x1, %eax
jne 0xdd4ba
jmp 0xdd5da
movq -0x8(%rbp), %rax
movq 0x8(%rax), %rax
movq -0x8(%rbp), %rcx
movq 0x28(%rcx), %rcx
movl -0x4c(%rbp), %edx
movq (%rcx,%rdx,8), %rcx
shrq $0x20, %rcx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movq %rax, -0x60(%rbp)
movq -0x8(%rbp), %rax
movq 0x28(%rax), %rax
movl -0x4c(%rbp), %ecx
movq (%rax,%rcx,8), %rax
movl %eax, -0x64(%rbp)
cmpl $0x2, -0x64(%rbp)
jae 0xdd4fd
jmp 0xdd5da
movq $0x0, -0x70(%rbp)
movq -0x70(%rbp), %rax
movl -0x64(%rbp), %ecx
cmpq %rcx, %rax
jae 0xdd5d8
jmp 0xdd517
movq -0x48(%rbp), %rax
cmpq -0x40(%rbp), %rax
jne 0xdd566
cmpq $0x0, -0x40(%rbp)
je 0xdd538
movq -0x40(%rbp), %rax
shlq %rax
movq %rax, -0xd0(%rbp)
jmp 0xdd546
movl $0x2, %eax
movq %rax, -0xd0(%rbp)
jmp 0xdd546
movq -0xd0(%rbp), %rax
movq %rax, -0x40(%rbp)
movq -0x38(%rbp), %rdi
movq -0x40(%rbp), %rsi
shlq $0x3, %rsi
callq 0x2360
movq %rax, -0x38(%rbp)
movq -0x60(%rbp), %rax
imulq $0x18, -0x70(%rbp), %rcx
addq %rcx, %rax
movl 0xc(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
movl %eax, %eax
shlq $0x20, %rax
movq %rax, -0xd8(%rbp)
movq -0x60(%rbp), %rax
movq -0x8(%rbp), %rcx
movq 0x8(%rcx), %rcx
subq %rcx, %rax
movl $0x18, %ecx
cqto
idivq %rcx
movq -0xd8(%rbp), %rdx
addq -0x70(%rbp), %rax
orq %rax, %rdx
movq -0x38(%rbp), %rax
movq -0x48(%rbp), %rcx
movq %rcx, %rsi
addq $0x1, %rsi
movq %rsi, -0x48(%rbp)
movq %rdx, (%rax,%rcx,8)
jmp 0xdd5c7
movq -0x70(%rbp), %rax
addq $0x1, %rax
movq %rax, -0x70(%rbp)
jmp 0xdd505
jmp 0xdd5da
movl -0x4c(%rbp), %eax
addl $0x1, %eax
movl %eax, -0x4c(%rbp)
jmp 0xdd46b
movq -0x38(%rbp), %rdi
movq -0x38(%rbp), %rsi
movq -0x48(%rbp), %rax
shlq $0x3, %rax
addq %rax, %rsi
callq 0xc90e0
movq $0x0, -0x78(%rbp)
movq -0x78(%rbp), %rax
cmpq -0x48(%rbp), %rax
jae 0xddce6
movq -0x8(%rbp), %rax
movq 0x8(%rax), %rax
movq -0x38(%rbp), %rcx
movq -0x78(%rbp), %rdx
movq (%rcx,%rdx,8), %rcx
movl %ecx, %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movq %rax, -0x80(%rbp)
movq -0x80(%rbp), %rax
movq (%rax), %rax
shrq $0x20, %rax
movl %eax, -0x90(%rbp)
movq -0x80(%rbp), %rax
movl 0x8(%rax), %eax
xorl $0x1, %eax
movl %eax, -0x94(%rbp)
movl $0x0, -0x98(%rbp)
movq -0x8(%rbp), %rax
movq 0x28(%rax), %rax
movl -0x90(%rbp), %ecx
movq (%rax,%rcx,8), %rax
movl %eax, -0x9c(%rbp)
movq -0x8(%rbp), %rax
movq 0x28(%rax), %rax
movl -0x94(%rbp), %ecx
movq (%rax,%rcx,8), %rax
movl %eax, -0xa0(%rbp)
movl $0x0, -0xac(%rbp)
movl $0x0, -0xb0(%rbp)
movl $0x0, -0xb4(%rbp)
movl $0x0, -0xb8(%rbp)
cmpl $0x1, -0x9c(%rbp)
jne 0xdd6d1
cmpl $0x1, -0xa0(%rbp)
jne 0xdd6d1
jmp 0xddcd5
movq -0x8(%rbp), %rax
movq 0x8(%rax), %rax
movq -0x8(%rbp), %rcx
movq 0x28(%rcx), %rcx
movl -0x90(%rbp), %edx
movq (%rcx,%rdx,8), %rcx
shrq $0x20, %rcx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movq %rax, -0xc0(%rbp)
movq -0x8(%rbp), %rax
movq 0x8(%rax), %rax
movq -0x8(%rbp), %rcx
movq 0x28(%rcx), %rcx
movl -0x94(%rbp), %edx
movq (%rcx,%rdx,8), %rcx
shrq $0x20, %rcx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movq %rax, -0xc8(%rbp)
movl $0x0, -0x84(%rbp)
movl $0x0, -0xa4(%rbp)
movl -0x84(%rbp), %eax
cmpl -0x9c(%rbp), %eax
jae 0xdd7e8
movq -0xc0(%rbp), %rax
movl -0x84(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %eax
shrl $0x1f, %eax
cmpl $0x0, %eax
je 0xdd770
jmp 0xdd7d4
movl -0xac(%rbp), %eax
movq -0xc0(%rbp), %rcx
movl -0x84(%rbp), %edx
imulq $0x18, %rdx, %rdx
addq %rdx, %rcx
movl 0xc(%rcx), %ecx
andl $0x7fffffff, %ecx       # imm = 0x7FFFFFFF
cmpl %ecx, %eax
jae 0xdd7c5
movq -0xc0(%rbp), %rax
movl -0x84(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
movl %eax, -0xac(%rbp)
movl -0x84(%rbp), %eax
movl %eax, -0xb4(%rbp)
movl -0xa4(%rbp), %eax
addl $0x1, %eax
movl %eax, -0xa4(%rbp)
movl -0x84(%rbp), %eax
addl $0x1, %eax
movl %eax, -0x84(%rbp)
jmp 0xdd73d
cmpl $0x2, -0xa4(%rbp)
jb 0xdd81b
movq -0x80(%rbp), %rax
movl 0xc(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
cvtsi2ss %eax, %xmm0
movl -0xac(%rbp), %eax
cvtsi2ss %rax, %xmm1
mulss -0xc(%rbp), %xmm1
ucomiss %xmm1, %xmm0
jbe 0xdd81b
jmp 0xddcd5
movl $0x0, -0x84(%rbp)
movl $0x0, -0xa8(%rbp)
movl -0x84(%rbp), %eax
cmpl -0xa0(%rbp), %eax
jae 0xdd8da
movq -0xc8(%rbp), %rax
movl -0x84(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %eax
shrl $0x1f, %eax
cmpl $0x0, %eax
je 0xdd862
jmp 0xdd8c6
movl -0xb0(%rbp), %eax
movq -0xc8(%rbp), %rcx
movl -0x84(%rbp), %edx
imulq $0x18, %rdx, %rdx
addq %rdx, %rcx
movl 0xc(%rcx), %ecx
andl $0x7fffffff, %ecx       # imm = 0x7FFFFFFF
cmpl %ecx, %eax
jae 0xdd8b7
movq -0xc8(%rbp), %rax
movl -0x84(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
movl %eax, -0xb0(%rbp)
movl -0x84(%rbp), %eax
movl %eax, -0xb8(%rbp)
movl -0xa8(%rbp), %eax
addl $0x1, %eax
movl %eax, -0xa8(%rbp)
movl -0x84(%rbp), %eax
addl $0x1, %eax
movl %eax, -0x84(%rbp)
jmp 0xdd82f
cmpl $0x2, -0xa8(%rbp)
jb 0xdd90d
movq -0x80(%rbp), %rax
movl 0xc(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
cvtsi2ss %eax, %xmm0
movl -0xb0(%rbp), %eax
cvtsi2ss %rax, %xmm1
mulss -0xc(%rbp), %xmm1
ucomiss %xmm1, %xmm0
jbe 0xdd90d
jmp 0xddcd5
cmpl $0x1, -0xa4(%rbp)
ja 0xdd924
cmpl $0x1, -0xa8(%rbp)
ja 0xdd924
jmp 0xddcd5
movl $0x0, -0x88(%rbp)
movl -0x88(%rbp), %eax
cmpl -0x9c(%rbp), %eax
jae 0xdd975
movq -0xc0(%rbp), %rax
movl -0x88(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0x8(%rax), %eax
movl -0x94(%rbp), %ecx
xorl $0x1, %ecx
cmpl %ecx, %eax
jne 0xdd962
jmp 0xdd975
jmp 0xdd964
movl -0x88(%rbp), %eax
addl $0x1, %eax
movl %eax, -0x88(%rbp)
jmp 0xdd92e
movl $0x0, -0x8c(%rbp)
movl -0x8c(%rbp), %eax
cmpl -0xa0(%rbp), %eax
jae 0xdd9c6
movq -0xc8(%rbp), %rax
movl -0x8c(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0x8(%rax), %eax
movl -0x90(%rbp), %ecx
xorl $0x1, %ecx
cmpl %ecx, %eax
jne 0xdd9b3
jmp 0xdd9c6
jmp 0xdd9b5
movl -0x8c(%rbp), %eax
addl $0x1, %eax
movl %eax, -0x8c(%rbp)
jmp 0xdd97f
movq -0xc0(%rbp), %rax
movl -0x88(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %eax
shrl $0x1f, %eax
cmpl $0x0, %eax
je 0xdda09
movq -0xc8(%rbp), %rax
movl -0x8c(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %eax
shrl $0x1f, %eax
cmpl $0x0, %eax
je 0xdda09
jmp 0xddcd5
cmpl $0x1, -0xa4(%rbp)
jbe 0xddb37
cmpl $0x1, -0xa8(%rbp)
jbe 0xddb37
movq -0x80(%rbp), %rax
movl 0xc(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
cvtsi2ss %eax, %xmm1
movl -0xac(%rbp), %eax
cvtsi2ss %rax, %xmm0
mulss -0xc(%rbp), %xmm0
ucomiss %xmm1, %xmm0
jbe 0xdda77
movq -0x80(%rbp), %rax
movl 0xc(%rax), %eax
andl $0x7fffffff, %eax       # imm = 0x7FFFFFFF
cvtsi2ss %eax, %xmm1
movl -0xb0(%rbp), %eax
cvtsi2ss %rax, %xmm0
mulss -0xc(%rbp), %xmm0
ucomiss %xmm1, %xmm0
jbe 0xdda77
movl $0x1, -0x98(%rbp)
cmpl $0x1, 0x18(%rbp)
jne 0xddb32
cmpl $0x1, -0x98(%rbp)
jne 0xddb32
movq -0xc0(%rbp), %rax
movl -0xb4(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0x8(%rax), %edi
movl -0x94(%rbp), %esi
xorl $0x1, %esi
movq -0x8(%rbp), %rdx
movq -0x18(%rbp), %rcx
movq -0x20(%rbp), %r8
movl -0x24(%rbp), %r9d
movl 0x10(%rbp), %r10d
movq 0x20(%rbp), %rax
movl %r10d, (%rsp)
movq %rax, 0x8(%rsp)
callq 0xdc410
cmpq $0x1, %rax
je 0xddb26
movq -0xc8(%rbp), %rax
movl -0xb8(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0x8(%rax), %edi
movl -0x90(%rbp), %esi
xorl $0x1, %esi
movq -0x8(%rbp), %rdx
movq -0x18(%rbp), %rcx
movq -0x20(%rbp), %r8
movl -0x24(%rbp), %r9d
movl 0x10(%rbp), %r10d
movq 0x20(%rbp), %rax
movl %r10d, (%rsp)
movq %rax, 0x8(%rsp)
callq 0xdc410
cmpq $0x1, %rax
jne 0xddb30
movl $0x0, -0x98(%rbp)
jmp 0xddb32
jmp 0xddc72
cmpl $0x1, -0xa8(%rbp)
jne 0xddbd4
movq -0x8(%rbp), %rdi
movl -0x94(%rbp), %esi
xorl $0x1, %esi
movl -0x10(%rbp), %edx
callq 0xdd220
cmpl -0x10(%rbp), %eax
jge 0xddb68
movl $0x1, -0x98(%rbp)
cmpl $0x1, 0x18(%rbp)
jne 0xddbcf
cmpl $0x1, -0x98(%rbp)
jne 0xddbcf
movq -0xc0(%rbp), %rax
movl -0xb4(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0x8(%rax), %edi
movl -0x94(%rbp), %esi
xorl $0x1, %esi
movq -0x8(%rbp), %rdx
movq -0x18(%rbp), %rcx
movq -0x20(%rbp), %r8
movl -0x24(%rbp), %r9d
movl 0x10(%rbp), %r10d
movq 0x20(%rbp), %rax
movl %r10d, (%rsp)
movq %rax, 0x8(%rsp)
callq 0xdc410
cmpq $0x1, %rax
jne 0xddbcd
movl $0x0, -0x98(%rbp)
jmp 0xddbcf
jmp 0xddc70
cmpl $0x1, -0xa4(%rbp)
jne 0xddc6e
movq -0x8(%rbp), %rdi
movl -0x90(%rbp), %esi
xorl $0x1, %esi
movl -0x10(%rbp), %edx
callq 0xdd220
cmpl -0x10(%rbp), %eax
jge 0xddc05
movl $0x1, -0x98(%rbp)
cmpl $0x1, 0x18(%rbp)
jne 0xddc6c
cmpl $0x1, -0x98(%rbp)
jne 0xddc6c
movq -0xc8(%rbp), %rax
movl -0xb8(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0x8(%rax), %edi
movl -0x90(%rbp), %esi
xorl $0x1, %esi
movq -0x8(%rbp), %rdx
movq -0x18(%rbp), %rcx
movq -0x20(%rbp), %r8
movl -0x24(%rbp), %r9d
movl 0x10(%rbp), %r10d
movq 0x20(%rbp), %rax
movl %r10d, (%rsp)
movq %rax, 0x8(%rsp)
callq 0xdc410
cmpq $0x1, %rax
jne 0xddc6a
movl $0x0, -0x98(%rbp)
jmp 0xddc6c
jmp 0xddc6e
jmp 0xddc70
jmp 0xddc72
cmpl $0x0, -0x98(%rbp)
je 0xddcd3
movq -0xc8(%rbp), %rax
movl -0x8c(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %ecx
andl $0x7fffffff, %ecx       # imm = 0x7FFFFFFF
orl $0x80000000, %ecx       # imm = 0x80000000
movl %ecx, 0xc(%rax)
movq -0xc0(%rbp), %rax
movl -0x88(%rbp), %ecx
imulq $0x18, %rcx, %rcx
addq %rcx, %rax
movl 0xc(%rax), %ecx
andl $0x7fffffff, %ecx       # imm = 0x7FFFFFFF
orl $0x80000000, %ecx       # imm = 0x80000000
movl %ecx, 0xc(%rax)
movq -0x58(%rbp), %rax
addq $0x1, %rax
movq %rax, -0x58(%rbp)
jmp 0xddcd5
movq -0x78(%rbp), %rax
addq $0x1, %rax
movq %rax, -0x78(%rbp)
jmp 0xdd608
movq -0x38(%rbp), %rdi
callq 0x2210
cmpq $0x0, -0x58(%rbp)
je 0xddd08
movq -0x8(%rbp), %rdi
callq 0xcdd10
movq -0x8(%rbp), %rdi
callq 0xce020
movq -0x58(%rbp), %rax
addq $0xf0, %rsp
popq %rbp
retq
nopw %cs:(%rax,%rax)