// File: /workspace/github_c_makefile_star2_O2/PoulinV[P]AxiCLASS/build/../source/thermodynamics.c
// Function: thermodynamics_idm_initial_temperature
int thermodynamics_idm_initial_temperature(
                                           struct background* pba,
                                           struct thermodynamics* pth,
                                           double z_ini,
                                           struct thermo_diffeq_workspace * ptdw
                                           ) {

  /** - define local parameters */
  double* pvecback;
  int last_index;
  /* idm-b special parameters */
  double m_b, FHe, T_diff_idm_b;
  /* steady state factors ( = prefactors in temperature evolution equation) */
  double alpha=0.,beta=0.,epsilon=0.;

  /** - obtain necessary background information */
  class_alloc(pvecback,pba->bg_size*sizeof(double),pba->error_message);
  class_call(background_at_z(pba,
                             z_ini,
                             long_info,
                             inter_normal,
                             &last_index,
                             pvecback),
             pba->error_message,
             pth->error_message);

  /* idm-idr steady state */
  if ((pth->has_idm_dr == _TRUE_) && (pth->n_index_idm_dr == 0)) {
    epsilon = 2*4./3.*pvecback[pba->index_bg_rho_idr]/pvecback[pba->index_bg_rho_idm]*
      pth->a_idm_dr*pow((1.+ z_ini)/1.e7,pth->n_index_idm_dr)*pba->Omega0_idm*pow(pba->h,2) / pvecback[pba->index_bg_H]*(1.+z_ini);
  }
  /* idm_g steady state */
  else if (pth->has_idm_g == _TRUE_ && pth->n_index_idm_g == -2) {
    ptdw->dmu_idm_dr = pth->a_idm_dr*pow((1.+ z_ini)/1.e7,pth->n_index_idm_dr)*pba->Omega0_idm*pow(pba->h,2);
    ptdw->Sinv_idm_dr  = 4./3.*pvecback[pba->index_bg_rho_idr]/pvecback[pba->index_bg_rho_idm];
    alpha = 2.* ptdw->dmu_idm_dr * ptdw->Sinv_idm_dr;
  }
  /* idm_b steady state */
  else if (pth->has_idm_b == _TRUE_ && pth->n_index_idm_b == -3) {
    FHe = 1-pth->YHe;
    m_b = _m_p_*_c_*_c_/_eV_;
    /* This is super-highly approximated, and will not usually be correct. However, the small error we incur should be corrected by the evolution equation */
    T_diff_idm_b = (pba->T_cmb*(1.+z_ini)*_k_B_/_eV_/m_b)+(pba->T_cmb*(1.+z_ini)*_k_B_/_eV_/pth->m_idm)+(1.e-8/3.0);
    ptdw->R_idm_b = (pvecback[pba->index_bg_a]*pvecback[pba->index_bg_rho_b]*pth->cross_idm_b*pth->n_coeff_idm_b/(m_b+pth->m_idm))
      *pow(T_diff_idm_b,(pth->n_index_idm_b+1.0)/2.0)*FHe
      *(3.e-4*pow(_c_,4.)/(8.*_PI_*_Mpc_over_m_*_G_*_eV_));
    alpha = 2.*pth->m_idm/(pth->m_idm + m_b)*ptdw->R_idm_b;
  }

  /* This formula (assuming alpha,beta,epsilon=const) approximates the steady-state solution of the IDM temperature evolution equation */
  ptdw->T_idm = (alpha + beta + epsilon * pba->T_idr/pba->T_cmb)/(1.+epsilon+alpha+beta) * pba->T_cmb * (1.+z_ini);

  free(pvecback);

  return _SUCCESS_;
}

// Assembly:
pushq %r15
pushq %r14
pushq %r13
pushq %r12
pushq %rbx
subq $0x820, %rsp            # imm = 0x820
movq %rdx, %r14
movsd %xmm0, (%rsp)
movq %rsi, %r12
movq %rdi, %rbx
movslq 0x43c(%rdi), %r13
leaq (,%r13,8), %rdi
callq 0x8490
testq %rax, %rax
je 0x6b521
movq %rax, %r15
pushq $0x2
popq %rsi
leaq 0x1c(%rsp), %rcx
movq %rbx, %rdi
movsd (%rsp), %xmm0
xorl %edx, %edx
movq %rax, %r8
callq 0x585e8
cmpl $0x1, %eax
jne 0x6b574
addq $0xd1c, %rbx            # imm = 0xD1C
leaq 0x79f07(%rip), %rsi     # 0xe53f0
leaq 0x9dc76(%rip), %rdx     # 0x109166
leaq 0x20(%rsp), %r14
movq %r14, %rdi
movq %rbx, %rcx
xorl %eax, %eax
callq 0x2e014
addq $0x1064, %r12           # imm = 0x1064
leaq 0x79b24(%rip), %rsi     # 0xe5034
leaq 0x9dc28(%rip), %rdx     # 0x10913f
movq %r12, %rdi
movl $0x1284, %ecx           # imm = 0x1284
jmp 0x6b562
shll $0x3, %r13d
leaq 0x79ad8(%rip), %rsi     # 0xe5004
leaq 0xa0bff(%rip), %rdx     # 0x10c132
leaq 0x20(%rsp), %r14
movq %r14, %rdi
movl %r13d, %ecx
xorl %eax, %eax
callq 0x2e014
addq $0xd1c, %rbx            # imm = 0xD1C
leaq 0x79ae1(%rip), %rsi     # 0xe5034
leaq 0x9dbe5(%rip), %rdx     # 0x10913f
movq %rbx, %rdi
movl $0x127c, %ecx           # imm = 0x127C
movq %r14, %r8
xorl %eax, %eax
callq 0x2e014
pushq $0x1
popq %rax
jmp 0x6b818
cmpw $0x1, 0x38(%r12)
jne 0x6b62d
movsd 0x1028(%r12), %xmm1
xorpd %xmm0, %xmm0
ucomisd %xmm0, %xmm1
jne 0x6b62d
jp 0x6b62d
movslq 0x3b0(%rbx), %rax
movsd (%r15,%rax,8), %xmm0
mulsd 0x9905c(%rip), %xmm0    # 0x104610
movslq 0x398(%rbx), %rax
divsd (%r15,%rax,8), %xmm0
mulsd 0x1018(%r12), %xmm0
movsd %xmm0, 0x10(%rsp)
movsd 0x79c87(%rip), %xmm0    # 0xe5260
addsd (%rsp), %xmm0
movsd %xmm0, 0x8(%rsp)
divsd 0x98f5c(%rip), %xmm0    # 0x104548
callq 0x8650
xorpd %xmm6, %xmm6
movsd (%rsp), %xmm5
mulsd 0x10(%rsp), %xmm0
mulsd 0xf0(%rbx), %xmm0
movsd 0x8(%rbx), %xmm1
mulsd %xmm1, %xmm1
mulsd %xmm0, %xmm1
movslq 0x384(%rbx), %rax
divsd (%r15,%rax,8), %xmm1
mulsd 0x8(%rsp), %xmm1
jmp 0x6b7c7
cmpw $0x1, 0x36(%r12)
movsd (%rsp), %xmm5
jne 0x6b6e0
cmpl $-0x2, 0x1058(%r12)
jne 0x6b6e0
movsd 0x79c0a(%rip), %xmm0    # 0xe5260
addsd %xmm5, %xmm0
divsd 0x98ee6(%rip), %xmm0    # 0x104548
movsd 0x1018(%r12), %xmm1
movsd %xmm1, 0x8(%rsp)
movsd 0x1028(%r12), %xmm1
callq 0x8650
movsd (%rsp), %xmm5
mulsd 0x8(%rsp), %xmm0
mulsd 0xf0(%rbx), %xmm0
movsd 0x8(%rbx), %xmm6
mulsd %xmm6, %xmm6
mulsd %xmm0, %xmm6
movsd %xmm6, 0x58(%r14)
movslq 0x3b0(%rbx), %rax
movsd (%r15,%rax,8), %xmm0
mulsd 0x7cdc4(%rip), %xmm0    # 0xe8480
movslq 0x398(%rbx), %rax
divsd (%r15,%rax,8), %xmm0
movsd %xmm0, 0x68(%r14)
addsd %xmm6, %xmm6
mulsd %xmm0, %xmm6
xorpd %xmm1, %xmm1
jmp 0x6b7c7
xorpd %xmm1, %xmm1
cmpw $0x1, 0x34(%r12)
jne 0x6b7c3
cmpl $-0x3, 0x1038(%r12)
jne 0x6b7c3
movsd 0x79b58(%rip), %xmm0    # 0xe5260
movapd %xmm0, %xmm2
subsd (%r12), %xmm2
addsd %xmm5, %xmm0
mulsd 0x18(%rbx), %xmm0
mulsd 0x7e3dd(%rip), %xmm0    # 0xe9b00
divsd 0x7e3dd(%rip), %xmm0    # 0xe9b08
movapd %xmm0, %xmm3
divsd 0x98df9(%rip), %xmm3    # 0x104530
movsd 0x1010(%r12), %xmm6
divsd %xmm6, %xmm0
movslq 0x380(%rbx), %rax
movsd (%r15,%rax,8), %xmm4
movslq 0x390(%rbx), %rax
mulsd (%r15,%rax,8), %xmm4
mulsd 0x1030(%r12), %xmm4
addsd %xmm3, %xmm0
mulsd 0x1040(%r12), %xmm4
unpcklpd %xmm6, %xmm0            # xmm0 = xmm0[0],xmm6[0]
addpd 0x98f0d(%rip), %xmm0    # 0x104690
movapd 0x98f15(%rip), %xmm3    # 0x1046a0
unpcklpd %xmm4, %xmm3            # xmm3 = xmm3[0],xmm4[0]
divpd %xmm0, %xmm3
movapd %xmm3, %xmm4
unpckhpd %xmm3, %xmm4            # xmm4 = xmm4[1],xmm3[1]
mulsd %xmm3, %xmm4
mulsd %xmm2, %xmm4
mulsd 0x98d95(%rip), %xmm4    # 0x104540
movsd %xmm4, 0x30(%r14)
addsd %xmm6, %xmm6
unpckhpd %xmm0, %xmm0            # xmm0 = xmm0[1,1]
divsd %xmm0, %xmm6
mulsd %xmm4, %xmm6
jmp 0x6b7c7
xorpd %xmm6, %xmm6
xorpd %xmm0, %xmm0
addsd %xmm6, %xmm0
movsd 0x100(%rbx), %xmm2
mulsd %xmm1, %xmm2
movsd 0x18(%rbx), %xmm3
divsd %xmm3, %xmm2
addsd %xmm0, %xmm2
movsd 0x79a70(%rip), %xmm0    # 0xe5260
addsd %xmm0, %xmm1
addsd %xmm6, %xmm1
divsd %xmm1, %xmm2
mulsd %xmm3, %xmm2
addsd %xmm0, %xmm5
mulsd %xmm2, %xmm5
movsd %xmm5, 0x38(%r14)
movq %r15, %rdi
callq 0x8430
xorl %eax, %eax
addq $0x820, %rsp            # imm = 0x820
popq %rbx
popq %r12
popq %r13
popq %r14
popq %r15
retq