user: What is the c source code of the assembly code below?

```asm
<init_can>:
  endbr64
  push   %rbp
  lea    D240(%rip),%rax
  push   %rbx
  sub    $0x8,%rsp
  cmp    %rax,%rdi
  je     L15
  lea    D375(%rip),%rax
  cmp    %rax,%rdi
  je     L20
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   (%rax)
L15:
  lea    D109(%rip),%rbp
  mov    $0xfffc0000,%ebx
  mov    %rbp,%rdi
  call   <puts@plt>
  lea    D300(%rip),%rdi
  call   <puts@plt>
  mov    %rbp,%rdi
  call   <puts@plt>
  lea    D209(%rip),%rdi
  call   <puts@plt>
  movzbl (%rbx),%esi
  lea    D9(%rip),%rdi
  xor    %eax,%eax
  or     $0x1,%esi
  mov    %sil,(%rbx)
  movzbl %sil,%esi
  call   <printf@plt>
  lea    D204(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc001f,%eax
  lea    D227(%rip),%rdi
  movzbl (%rax),%esi
  and    $0x78,%esi
  or     $0x7,%esi
  mov    %sil,(%rax)
  movsbl %sil,%esi
  xor    %eax,%eax
  call   <printf@plt>
  lea    D224(%rip),%rdi
  call   <puts@plt>
  lea    D65(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0006,%eax
  mov    $0xa8,%esi
  lea    D279(%rip),%rdi
  movb   $0xa8,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D401(%rip),%rdi
  call   <puts@plt>
  lea    D321(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0007,%eax
  mov    $0x34,%esi
  lea    D380(%rip),%rdi
  movb   $0x34,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D153(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0004,%eax
  mov    $0xea,%esi
  lea    D259(%rip),%rdi
  movb   $0xea,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D4(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0005,%eax
  mov    $0xf,%esi
  lea    D131(%rip),%rdi
  movb   $0xf,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0x32,%edi
  call   <kill_time@plt>
  lea    D329(%rip),%rdi
  call   <puts@plt>
  movzbl (%rbx),%esi
  and    $0xfffffffe,%esi
  mov    %sil,(%rbx)
L7:
  lea    D230(%rip),%rdi
  movzbl %sil,%esi
  xor    %eax,%eax
  call   <printf@plt>
  add    $0x8,%rsp
  mov    $0x32,%edi
  pop    %rbx
  pop    %rbp
  jmp    1080 <kill_time@plt>
  nopl   0x0(%rax,%rax,1)
L20:
  lea    D109(%rip),%rbp
  mov    %rsi,%rbx
  mov    %rbp,%rdi
  call   <puts@plt>
  lea    D342(%rip),%rdi
  call   <puts@plt>
  mov    %rbp,%rdi
  lea    D112(%rip),%rbp
  call   <puts@plt>
  lea    D209(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0000,%eax
  lea    D9(%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    D360(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc001f,%eax
  lea    D227(%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    D224(%rip),%rdi
  call   <puts@plt>
  lea    D65(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0006,%eax
  mov    $0xa8,%esi
  lea    D279(%rip),%rdi
  movb   $0xa8,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D401(%rip),%rdi
  call   <puts@plt>
  lea    D321(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0007,%eax
  mov    $0x34,%esi
  lea    D380(%rip),%rdi
  movb   $0x34,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D153(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0010,%eax
  mov    $0xa6,%esi
  lea    D396(%rip),%rdi
  movb   $0xa6,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0011,%eax
  mov    $0xb0,%esi
  lea    D210(%rip),%rdi
  movb   $0xb0,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0012,%eax
  mov    $0x12,%esi
  lea    D411(%rip),%rdi
  movb   $0x12,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xfffc0013,%eax
  mov    $0x30,%esi
  lea    D262(%rip),%rdi
  movb   $0x30,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D4(%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    D131(%rip),%rdi
  movb   $0x0,(%rax)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D51(%rip),%rax
  cmp    %rax,%rbx
  je     L31
L44:
  lea    D329(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffc0000,%eax
  movzbl (%rax),%esi
  and    $0xfffffffe,%esi
  mov    %sil,(%rax)
  jmp    L7
  nopw   0x0(%rax,%rax,1)
L31:
  xor    %eax,%eax
  call   <self_testing_mode@plt>
  jmp    L44
```

tool_calls: name: parse_data
arguments: label: D240
type_infered: string
name: parse_data
arguments: label: D375
type_infered: string
name: parse_data
arguments: label: D109
type_infered: string
name: parse_data
arguments: label: D300
type_infered: string
name: parse_data
arguments: label: D209
type_infered: string
name: parse_data
arguments: label: D9
type_infered: string
name: parse_data
arguments: label: D204
type_infered: string
name: parse_data
arguments: label: D227
type_infered: string
name: parse_data
arguments: label: D224
type_infered: string
name: parse_data
arguments: label: D65
type_infered: string
name: parse_data
arguments: label: D279
type_infered: string
name: parse_data
arguments: label: D401
type_infered: string
name: parse_data
arguments: label: D321
type_infered: string
name: parse_data
arguments: label: D380
type_infered: string
name: parse_data
arguments: label: D153
type_infered: string
name: parse_data
arguments: label: D259
type_infered: string
name: parse_data
arguments: label: D4
type_infered: string
name: parse_data
arguments: label: D131
type_infered: string
name: parse_data
arguments: label: D329
type_infered: string
name: parse_data
arguments: label: D230
type_infered: string
name: parse_data
arguments: label: D342
type_infered: string
name: parse_data
arguments: label: D112
type_infered: string
name: parse_data
arguments: label: D360
type_infered: string
name: parse_data
arguments: label: D396
type_infered: string
name: parse_data
arguments: label: D210
type_infered: string
name: parse_data
arguments: label: D411
type_infered: string
name: parse_data
arguments: label: D262
type_infered: string
name: parse_data
arguments: label: D51
type_infered: string

tool: D240: Basic

tool: D375: Extended

tool: D109: ************************************

tool: D300: ********** Basic Can Mode **********

tool: D209: Switch on Reset Mode

tool: D9: control_register: 0x%X 



tool: D204: Set clock divider register to basic can mode

tool: D227: clock_divider_register: 0x%X 



tool: D224: Set bus timing register 0

tool: D65: Sync Jump Width = 2  Baudrate Prescaler = 1

tool: D279: bus timing register 0: 0x%X 



tool: D401: Set bus timing register 1

tool: D321: SAM = 0 ---> Single Sampling

tool: D380: bus timing register 1: 0x%X 



tool: D153: Set acceptance code register

tool: D259: acceptance code register: 0x%X 



tool: D4: Set acceptance mask register

tool: D131: acceptance mask register: 0x%X 



tool: D329: Switch off reset mode

tool: D230: control_register 0x%X 



tool: D342: ******** Extended Can Mode *********

tool: D112: acceptance mask register: 0x%X 


tool: D360: Set clock divider register to extended can mode

tool: D396: acceptance code register 0: 0x%X 


tool: D210: acceptance code register 1: 0x%X 


tool: D411: acceptance code register 2: 0x%X 


tool: D262: acceptance code register 3: 0x%X 



tool: D51: self_test

assistant: ```c
void init_can(char *mode, char *self_test) {
  unsigned char r_val;
  if (mode == "Basic") {
    printf("************************************\n");
    printf("********** Basic 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)));
    printf("Set clock divider register to basic can mode\n");
    r_val = *((unsigned char *)(0xfffc001F)) & 0x7F | 0x07;
    *((unsigned char *)(0xfffc001F)) = r_val;
    printf("clock_divider_register: 0x%X \n\n", *((unsigned char *)(0xfffc001F)));
    printf("Set bus timing register 0\n");
    printf("Sync Jump Width = 2  Baudrate Prescaler = 1\n");
    *((unsigned char *)(0xfffc0006)) = 0xA8;
    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)) = 0x34;
    printf("bus timing register 1: 0x%X \n\n", *((unsigned char *)(0xfffc0007)));
    printf("Set acceptance code register\n");
    *((unsigned char *)(0xfffc0004)) = 0xEA;
    printf("acceptance code register: 0x%X \n\n", *((unsigned char *)(0xfffc0004)));
    printf("Set acceptance mask register\n");
    *((unsigned char *)(0xfffc0005)) = 0x0F;
    printf("acceptance mask register: 0x%X \n\n", *((unsigned char *)(0xfffc0005)));
    kill_time(50);
    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);
  } 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)) = 0xA8;
    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)) = 0x34;
    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);
  }
}
```