user: What would the C source look like for the assembly code provided here:

```asm
<init_can>:
  endbr64
  push   %rbp
  lea    D168(%rip),%rax
  push   %rbx
  sub    $0x8,%rsp
  cmp    %rax,%rdi
  je     L1
  lea    D248(%rip),%rax
  cmp    %rax,%rdi
  je     L7
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax)
L1:
  lea    D224(%rip),%rdi
  mov    $0xfffc0000,%ebx
  call   <puts@plt>
  lea    D67(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc001f,%edx
  orb    $0x1,(%rbx)
  mov    $0x32,%edi
  movzbl (%rdx),%eax
  and    $0x78,%eax
  or     $0x7,%eax
  mov    %al,(%rdx)
  mov    $0xfffc0006,%eax
  movb   $0x83,(%rax)
  movb   $0x25,0x1(%rax)
  movb   $0xea,-0x2(%rax)
  movb   $0xf,-0x1(%rax)
  call   <kill_time@plt>
  lea    D23(%rip),%rdi
  call   <puts@plt>
  andb   $0xfe,(%rbx)
  add    $0x8,%rsp
  mov    $0x32,%edi
  pop    %rbx
  pop    %rbp
  jmp    1080 <kill_time@plt>
  nopl   (%rax)
L7:
  lea    D86(%rip),%rbp
  mov    %rsi,%rbx
  mov    %rbp,%rdi
  call   <puts@plt>
  lea    D138(%rip),%rdi
  call   <puts@plt>
  mov    %rbp,%rdi
  lea    D85(%rip),%rbp
  call   <puts@plt>
  lea    D67(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0000,%eax
  lea    D209(%rip),%rdi
  movzbl (%rax),%esi
  or     $0x1,%esi
  mov    %sil,(%rax)
  movzbl %sil,%esi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0x32,%edi
  call   <kill_time@plt>
  lea    D212(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc001f,%eax
  lea    D272(%rip),%rdi
  movzbl (%rax),%esi
  or     $0xffffff87,%esi
  mov    %sil,(%rax)
  movzbl %sil,%esi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0x32,%edi
  call   <kill_time@plt>
  lea    D162(%rip),%rdi
  call   <puts@plt>
  lea    D170(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0006,%eax
  mov    $0x83,%esi
  lea    D178(%rip),%rdi
  movb   $0x83,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D181(%rip),%rdi
  call   <puts@plt>
  lea    D139(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0007,%eax
  mov    $0x25,%esi
  lea    D113(%rip),%rdi
  movb   $0x25,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D140(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0010,%eax
  mov    $0xa6,%esi
  lea    D278(%rip),%rdi
  movb   $0xa6,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0011,%eax
  mov    $0xb0,%esi
  lea    D35(%rip),%rdi
  movb   $0xb0,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0012,%eax
  mov    $0x12,%esi
  lea    D273(%rip),%rdi
  movb   $0x12,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0013,%eax
  mov    $0x30,%esi
  lea    D169(%rip),%rdi
  movb   $0x30,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D28(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0014,%eax
  xor    %esi,%esi
  mov    %rbp,%rdi
  movb   $0x0,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0015,%eax
  xor    %esi,%esi
  mov    %rbp,%rdi
  movb   $0x0,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0016,%eax
  xor    %esi,%esi
  mov    %rbp,%rdi
  movb   $0x0,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0017,%eax
  xor    %esi,%esi
  lea    D159(%rip),%rdi
  movb   $0x0,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D202(%rip),%rax
  cmp    %rax,%rbx
  je     L18
L12:
  lea    D23(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0000,%eax
  lea    D156(%rip),%rdi
  movzbl (%rax),%esi
  and    $0xfffffffe,%esi
  mov    %sil,(%rax)
  movzbl %sil,%esi
  xor    %eax,%eax
  call   <printf@plt>
  add    $0x8,%rsp
  mov    $0x32,%edi
  pop    %rbx
  pop    %rbp
  jmp    1080 <kill_time@plt>
  nop
L18:
  xor    %eax,%eax
  call   <self_testing_mode@plt>
  jmp    L12
```

tool_calls: name: unpack_data
arguments: label: D168
type_guessed: string
name: unpack_data
arguments: label: D248
type_guessed: string
name: unpack_data
arguments: label: D224
type_guessed: string
name: unpack_data
arguments: label: D67
type_guessed: string
name: unpack_data
arguments: label: D23
type_guessed: string
name: unpack_data
arguments: label: D86
type_guessed: string
name: unpack_data
arguments: label: D138
type_guessed: string
name: unpack_data
arguments: label: D85
type_guessed: string
name: unpack_data
arguments: label: D209
type_guessed: string
name: unpack_data
arguments: label: D212
type_guessed: string
name: unpack_data
arguments: label: D272
type_guessed: string
name: unpack_data
arguments: label: D162
type_guessed: string
name: unpack_data
arguments: label: D170
type_guessed: string
name: unpack_data
arguments: label: D178
type_guessed: string
name: unpack_data
arguments: label: D181
type_guessed: string
name: unpack_data
arguments: label: D139
type_guessed: string
name: unpack_data
arguments: label: D113
type_guessed: string
name: unpack_data
arguments: label: D140
type_guessed: string
name: unpack_data
arguments: label: D278
type_guessed: string
name: unpack_data
arguments: label: D35
type_guessed: string
name: unpack_data
arguments: label: D273
type_guessed: string
name: unpack_data
arguments: label: D169
type_guessed: string
name: unpack_data
arguments: label: D28
type_guessed: string
name: unpack_data
arguments: label: D159
type_guessed: string
name: unpack_data
arguments: label: D202
type_guessed: string
name: unpack_data
arguments: label: D156
type_guessed: string

tool: D168: Basic

tool: D248: Extended

tool: D224: ********** Basic Can Mode **********

tool: D67: Switch on Reset Mode

tool: D23: Switch off reset mode

tool: D86: ************************************

tool: D138: ******** Extended Can Mode *********

tool: D85: acceptance mask register: 0x%X 


tool: D209: control_register: 0x%X 



tool: D212: Set clock divider register to extended can mode

tool: D272: clock_divider_register: 0x%X 



tool: D162: Set bus timing register 0

tool: D170: Sync Jump Width = 2  Baudrate Prescaler = 1

tool: D178: bus timing register 0: 0x%X 



tool: D181: Set bus timing register 1

tool: D139: SAM = 0 ---> Single Sampling

tool: D113: bus timing register 1: 0x%X 



tool: D140: Set acceptance code register

tool: D278: acceptance code register 0: 0x%X 


tool: D35: acceptance code register 1: 0x%X 


tool: D273: acceptance code register 2: 0x%X 


tool: D169: acceptance code register 3: 0x%X 



tool: D28: Set acceptance mask register

tool: D159: acceptance mask register: 0x%X 



tool: D202: self_test

tool: D156: control_register 0x%X 



assistant: ```c
void init_can(char *mode, char *self_test) {
  unsigned char r_val;
  if (mode == "Basic") {
    printf("********** Basic Can Mode **********\n");
    printf("Switch on Reset Mode\n");
    r_val = *((unsigned char *)(0xfffc0000)) | 0x01;
    *((unsigned char *)(0xfffc0000)) = r_val;
    r_val = *((unsigned char *)(0xfffc001F)) & 0x7F | 0x07;
    *((unsigned char *)(0xfffc001F)) = r_val;
    *((unsigned char *)(0xfffc0006)) = 0x83;
    *((unsigned char *)(0xfffc0007)) = 0x25;
    *((unsigned char *)(0xfffc0004)) = 0xEA;
    *((unsigned char *)(0xfffc0005)) = 0x0F;
    kill_time(50);
    printf("Switch off reset mode\n");
    r_val = *((unsigned char *)(0xfffc0000)) & 0xFE;
    *((unsigned char *)(0xfffc0000)) = r_val;
    kill_time(50);
  } else if (mode == "Extended") {
    printf("************************************\n");
    printf("******** Extended Can Mode *********\n");
    printf("************************************\n");
    printf("Switch on Reset Mode\n");
    r_val = *((unsigned char *)(0xfffc0000)) | 0x01;
    *((unsigned char *)(0xfffc0000)) = r_val;
    printf("control_register: 0x%X \n\n", *((unsigned char *)(0xfffc0000)));
    kill_time(50);
    printf("Set clock divider register to extended can mode\n");
    r_val = *((unsigned char *)(0xfffc001F)) | 0x80 | 0x07;
    *((unsigned char *)(0xfffc001F)) = r_val;
    printf("clock_divider_register: 0x%X \n\n", *((unsigned char *)(0xfffc001F)));
    kill_time(50);
    printf("Set bus timing register 0\n");
    printf("Sync Jump Width = 2  Baudrate Prescaler = 1\n");
    *((unsigned char *)(0xfffc0006)) = 0x83;
    printf("bus timing register 0: 0x%X \n\n", *((unsigned char *)(0xfffc0006)));
    printf("Set bus timing register 1\n");
    printf("SAM = 0 ---> Single Sampling\n");
    *((unsigned char *)(0xfffc0007)) = 0x25;
    printf("bus timing register 1: 0x%X \n\n", *((unsigned char *)(0xfffc0007)));
    printf("Set acceptance code register\n");
    *((unsigned char *)(0xfffc0010)) = 0xA6;
    printf("acceptance code register 0: 0x%X \n", *((unsigned char *)(0xfffc0010)));
    *((unsigned char *)(0xfffc0011)) = 0xB0;
    printf("acceptance code register 1: 0x%X \n", *((unsigned char *)(0xfffc0011)));
    *((unsigned char *)(0xfffc0012)) = 0x12;
    printf("acceptance code register 2: 0x%X \n", *((unsigned char *)(0xfffc0012)));
    *((unsigned char *)(0xfffc0013)) = 0x30;
    printf("acceptance code register 3: 0x%X \n\n", *((unsigned char *)(0xfffc0013)));
    printf("Set acceptance mask register\n");
    *((unsigned char *)(0xfffc0014)) = 0x00;
    printf("acceptance mask register: 0x%X \n", *((unsigned char *)(0xfffc0014)));
    *((unsigned char *)(0xfffc0015)) = 0x00;
    printf("acceptance mask register: 0x%X \n", *((unsigned char *)(0xfffc0015)));
    *((unsigned char *)(0xfffc0016)) = 0x00;
    printf("acceptance mask register: 0x%X \n", *((unsigned char *)(0xfffc0016)));
    *((unsigned char *)(0xfffc0017)) = 0x00;
    printf("acceptance mask register: 0x%X \n\n", *((unsigned char *)(0xfffc0017)));
    if (self_test == "self_test") {
      self_testing_mode();
    }
    printf("Switch off reset mode\n");
    r_val = *((unsigned char *)(0xfffc0000)) & 0xFE;
    *((unsigned char *)(0xfffc0000)) = r_val;
    printf("control_register 0x%X \n\n", *((unsigned char *)(0xfffc0000)));
    kill_time(50);
  }
}
```