user: Please show me the C implementation that matches the assembly code listed below:

```asm
<btk_help_pubkey>:
  endbr64
  push   %r12
  lea    D55(%rip),%rdi
  lea    D75(%rip),%r12
  push   %rbp
  lea    D332(%rip),%rbp
  sub    $0x8,%rsp
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D196(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D456(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D327(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D34(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D50(%rip),%rdi
  call   <printf@plt>
  lea    D280(%rip),%rdi
  call   <printf@plt>
  lea    D119(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D224(%rip),%rdi
  call   <printf@plt>
  lea    D812(%rip),%rdi
  call   <printf@plt>
  lea    D678(%rip),%rdi
  call   <printf@plt>
  lea    D103(%rip),%rdi
  call   <printf@plt>
  lea    D223(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D230(%rip),%rdi
  call   <printf@plt>
  lea    D731(%rip),%rdi
  call   <printf@plt>
  lea    D347(%rip),%rdi
  call   <printf@plt>
  lea    D93(%rip),%rdi
  call   <printf@plt>
  lea    D348(%rip),%rdi
  call   <printf@plt>
  lea    D9(%rip),%rdi
  call   <printf@plt>
  lea    D211(%rip),%rdi
  call   <printf@plt>
  lea    D259(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D743(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D794(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D248(%rip),%rdi
  call   <printf@plt>
  lea    D718(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D632(%rip),%rdi
  call   <printf@plt>
  lea    D802(%rip),%rdi
  call   <printf@plt>
  lea    D7(%rip),%rdi
  call   <printf@plt>
  lea    D345(%rip),%rdi
  call   <printf@plt>
  lea    D815(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D429(%rip),%rdi
  call   <printf@plt>
  lea    D810(%rip),%rdi
  call   <printf@plt>
  lea    D278(%rip),%rdi
  call   <printf@plt>
  lea    D608(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D87(%rip),%rdi
  call   <printf@plt>
  lea    D293(%rip),%rdi
  call   <printf@plt>
  lea    D602(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D129(%rip),%rdi
  call   <printf@plt>
  lea    D26(%rip),%rdi
  call   <printf@plt>
  lea    D265(%rip),%rdi
  call   <printf@plt>
  lea    D121(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D41(%rip),%rdi
  call   <printf@plt>
  lea    D1(%rip),%rdi
  call   <printf@plt>
  lea    D625(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D755(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D5(%rip),%rdi
  call   <printf@plt>
  lea    D88(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D309(%rip),%rdi
  call   <printf@plt>
  lea    D361(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D491(%rip),%rdi
  call   <printf@plt>
  lea    D758(%rip),%rdi
  call   <printf@plt>
  lea    D651(%rip),%rdi
  call   <printf@plt>
  lea    D174(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D493(%rip),%rdi
  call   <printf@plt>
  lea    D838(%rip),%rdi
  call   <printf@plt>
  lea    D659(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D71(%rip),%rdi
  call   <printf@plt>
  lea    D665(%rip),%rdi
  call   <printf@plt>
  lea    D833(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D563(%rip),%rdi
  call   <printf@plt>
  lea    D65(%rip),%rdi
  call   <printf@plt>
  lea    D209(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D61(%rip),%rdi
  call   <printf@plt>
  lea    D270(%rip),%rdi
  call   <printf@plt>
  lea    D523(%rip),%rdi
  call   <printf@plt>
  lea    D318(%rip),%rdi
  call   <printf@plt>
  lea    D372(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D582(%rip),%rdi
  call   <printf@plt>
  lea    D647(%rip),%rdi
  call   <printf@plt>
  lea    D343(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D17(%rip),%rdi
  call   <printf@plt>
  mov    %r12,%rdi
  call   <printf@plt>
  lea    D138(%rip),%rdi
  call   <printf@plt>
  lea    D829(%rip),%rdi
  call   <printf@plt>
  lea    D619(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D540(%rip),%rdi
  call   <printf@plt>
  mov    %r12,%rdi
  call   <printf@plt>
  lea    D156(%rip),%rdi
  call   <printf@plt>
  lea    D697(%rip),%rdi
  call   <printf@plt>
  lea    D733(%rip),%rdi
  call   <printf@plt>
  lea    D552(%rip),%rdi
  call   <printf@plt>
  lea    D203(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D827(%rip),%rdi
  call   <printf@plt>
  lea    D468(%rip),%rdi
  call   <printf@plt>
  add    $0x8,%rsp
  mov    %rbp,%rdi
  pop    %rbp
  pop    %r12
  jmp    1050 <printf@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D55
datatype: string
name: extract_symbolic_data
arguments: tag: D75
datatype: string
name: extract_symbolic_data
arguments: tag: D332
datatype: string
name: extract_symbolic_data
arguments: tag: D196
datatype: string
name: extract_symbolic_data
arguments: tag: D456
datatype: string
name: extract_symbolic_data
arguments: tag: D327
datatype: string
name: extract_symbolic_data
arguments: tag: D34
datatype: string
name: extract_symbolic_data
arguments: tag: D50
datatype: string
name: extract_symbolic_data
arguments: tag: D280
datatype: string
name: extract_symbolic_data
arguments: tag: D119
datatype: string
name: extract_symbolic_data
arguments: tag: D224
datatype: string
name: extract_symbolic_data
arguments: tag: D812
datatype: string
name: extract_symbolic_data
arguments: tag: D678
datatype: string
name: extract_symbolic_data
arguments: tag: D103
datatype: string
name: extract_symbolic_data
arguments: tag: D223
datatype: string
name: extract_symbolic_data
arguments: tag: D230
datatype: string
name: extract_symbolic_data
arguments: tag: D731
datatype: string
name: extract_symbolic_data
arguments: tag: D347
datatype: string
name: extract_symbolic_data
arguments: tag: D93
datatype: string
name: extract_symbolic_data
arguments: tag: D348
datatype: string
name: extract_symbolic_data
arguments: tag: D9
datatype: string
name: extract_symbolic_data
arguments: tag: D211
datatype: string
name: extract_symbolic_data
arguments: tag: D259
datatype: string
name: extract_symbolic_data
arguments: tag: D743
datatype: string
name: extract_symbolic_data
arguments: tag: D794
datatype: string
name: extract_symbolic_data
arguments: tag: D248
datatype: string
name: extract_symbolic_data
arguments: tag: D718
datatype: string
name: extract_symbolic_data
arguments: tag: D632
datatype: string
name: extract_symbolic_data
arguments: tag: D802
datatype: string
name: extract_symbolic_data
arguments: tag: D7
datatype: string
name: extract_symbolic_data
arguments: tag: D345
datatype: string
name: extract_symbolic_data
arguments: tag: D815
datatype: string
name: extract_symbolic_data
arguments: tag: D429
datatype: string
name: extract_symbolic_data
arguments: tag: D810
datatype: string
name: extract_symbolic_data
arguments: tag: D278
datatype: string
name: extract_symbolic_data
arguments: tag: D608
datatype: string
name: extract_symbolic_data
arguments: tag: D87
datatype: string
name: extract_symbolic_data
arguments: tag: D293
datatype: string
name: extract_symbolic_data
arguments: tag: D602
datatype: string
name: extract_symbolic_data
arguments: tag: D129
datatype: string
name: extract_symbolic_data
arguments: tag: D26
datatype: string
name: extract_symbolic_data
arguments: tag: D265
datatype: string
name: extract_symbolic_data
arguments: tag: D121
datatype: string
name: extract_symbolic_data
arguments: tag: D41
datatype: string
name: extract_symbolic_data
arguments: tag: D1
datatype: string
name: extract_symbolic_data
arguments: tag: D625
datatype: string
name: extract_symbolic_data
arguments: tag: D755
datatype: string
name: extract_symbolic_data
arguments: tag: D5
datatype: string
name: extract_symbolic_data
arguments: tag: D88
datatype: string
name: extract_symbolic_data
arguments: tag: D309
datatype: string
name: extract_symbolic_data
arguments: tag: D361
datatype: string
name: extract_symbolic_data
arguments: tag: D491
datatype: string
name: extract_symbolic_data
arguments: tag: D758
datatype: string
name: extract_symbolic_data
arguments: tag: D651
datatype: string
name: extract_symbolic_data
arguments: tag: D174
datatype: string
name: extract_symbolic_data
arguments: tag: D493
datatype: string
name: extract_symbolic_data
arguments: tag: D838
datatype: string
name: extract_symbolic_data
arguments: tag: D659
datatype: string
name: extract_symbolic_data
arguments: tag: D71
datatype: string
name: extract_symbolic_data
arguments: tag: D665
datatype: string
name: extract_symbolic_data
arguments: tag: D833
datatype: string
name: extract_symbolic_data
arguments: tag: D563
datatype: string
name: extract_symbolic_data
arguments: tag: D65
datatype: string
name: extract_symbolic_data
arguments: tag: D209
datatype: string
name: extract_symbolic_data
arguments: tag: D61
datatype: string
name: extract_symbolic_data
arguments: tag: D270
datatype: string
name: extract_symbolic_data
arguments: tag: D523
datatype: string
name: extract_symbolic_data
arguments: tag: D318
datatype: string
name: extract_symbolic_data
arguments: tag: D372
datatype: string
name: extract_symbolic_data
arguments: tag: D582
datatype: string
name: extract_symbolic_data
arguments: tag: D647
datatype: string
name: extract_symbolic_data
arguments: tag: D343
datatype: string
name: extract_symbolic_data
arguments: tag: D17
datatype: string
name: extract_symbolic_data
arguments: tag: D138
datatype: string
name: extract_symbolic_data
arguments: tag: D829
datatype: string
name: extract_symbolic_data
arguments: tag: D619
datatype: string
name: extract_symbolic_data
arguments: tag: D540
datatype: string
name: extract_symbolic_data
arguments: tag: D156
datatype: string
name: extract_symbolic_data
arguments: tag: D697
datatype: string
name: extract_symbolic_data
arguments: tag: D733
datatype: string
name: extract_symbolic_data
arguments: tag: D552
datatype: string
name: extract_symbolic_data
arguments: tag: D203
datatype: string
name: extract_symbolic_data
arguments: tag: D827
datatype: string
name: extract_symbolic_data
arguments: tag: D468
datatype: string

tool: D55: COMMAND


tool: D75:       If the -A or -B option is specified (or assumed by default), this option


tool: D332: 


tool: D196:    pubkey - calculate and format public keys from private keys.


tool: D456: SYNOPSIS


tool: D327:    btk pubkey [INPUT_OPTIONS] [OUTPUT_OPTIONS]


tool: D34: DESCRIPTION

tool: D50:    The pubkey command generates the corresponding public key from a given


tool: D280:    private key. Input data should be a private key, or data from which a


tool: D119:    private key can be derived, in the format specified by the input option.


tool: D224:    The pubkey command will read data from standard input and interpret the


tool: D812:    format according to the input option specified. If no input option is


tool: D678:    specified, the pubkey command will read data from standard input and


tool: D103:    attempt to automatically determine the format if it can be done with a


tool: D223:    reasonable degree of certainty.


tool: D230:    The pubkey command will calculate a public key from the provided input data


tool: D731:    and print it in the format specified by the output option. If no output


tool: D347:    option is specified, the public key will be formatted as a standard


tool: D93:    bitcoin address. The public key will be compressed by default, unless


tool: D348:    the input data contains a compression flag, in which case it will remain


tool: D9:    consistent with the input data. If an output option is specified for


tool: D211:    compression, the private key will be compressed in accordance with that


tool: D259:    option, which will override any compression flag provided in the input data.


tool: D743:    See INPUT OPTIONS and OUTPUT OPTIONS for more info.


tool: D794: INPUT OPTIONS


tool: D248:    -w


tool: D718:       Treat input as a (w)allet import formatted (wif) string.


tool: D632:    -h


tool: D802:       Treat input as a (h)exadecimal formatted string. The string must be at


tool: D7:       least 64 characters long. If a 65th and 66th character exist, they are


tool: D345:       interpreted as a compression flag. Any extra characters beyond that point


tool: D815:       are ignored.


tool: D429:    -r


tool: D810:       Treat input as (r)aw binary data. Input must be at least 32 bytes long.


tool: D278:       If a 33rd byte exists, it is interpreted as a compression flag. Any


tool: D608:       extra data beyond that point is ignored.


tool: D87:    -s


tool: D293:       Treat input as an arbitrary ASCII (s)tring. ASCII strings are processed


tool: D602:       through a SHA256 hash algorithm to generate a 32 byte private key.


tool: D129:    -d


tool: D26:       Treat input as an ASCII string containing only (d)ecimal characters. The


tool: D265:       decimal value is converted to its 32-byte binary equivalent to generate


tool: D121:       a private key.


tool: D41:    -b


tool: D1:       Treat input as arbitrary (b)inary data. The data is processed through


tool: D625:       a SHA256 hash algorithm to generate a 32 byte private key.


tool: D755: OUTPUT OPTIONS


tool: D5:    -A


tool: D88:       Print public key as a traditional bitcoin (A)ddress. (default)


tool: D309:    -B


tool: D361:       Print public key as a (B)ech32 address.


tool: D491:    -H


tool: D758:       Print public key as a (H)exadecimal string. Note that a compressed


tool: D651:       public key in hexadecimal format is 66 characters long. An uncompressed


tool: D174:       public key is 130 characters long.


tool: D493:    -R


tool: D838:       Print public key as (R)aw binary data. This will result in 33 bytes for


tool: D659:       a compressed public key and 65 bytes for an uncompressed public key.


tool: D71:    -C


tool: D665:       (C)ompress the public key. If -P is specified (see below), the


tool: D833:       corresponding private key will also be compressed.


tool: D563:    -U


tool: D65:       (U)nompress the public key. If -P is specified (see below), the


tool: D209:       corresponding private key will also be uncompressed.


tool: D61:    -P


tool: D270:       Include the (P)rivate key in the output. This option is most useful for


tool: D523:       wrapper programs that want to generate and parse a private and public


tool: D318:       key pair in a single command. The private key will be printed first,


tool: D372:       followed by a single space, followed by the public key.


tool: D582:    -N


tool: D647:       Do NOT print a (N)ewline character. This may be a desirable option if


tool: D343:       the output is being parsed by a wrapper program.


tool: D17:    -T


tool: D138:       sets the (T)ESTNET prefix so the public key is usable on the TESTNET


tool: D829:       network. If the -P option is also specified, the private key will be


tool: D619:       formatted for TESTNET network.


tool: D540:    -M


tool: D156:       sets the (M)AINNET prefix so the public key can be used on the MAINNET


tool: D697:       network. Note that if no network flag is specified or included in the


tool: D733:       input data, the MAINNET prefix is used by default. This option is only


tool: D552:       useful for converting TESTNET keys to MAINNET. If the -P option is also


tool: D203:       specified, the private key will be formatted for TESTNET network.


tool: D827: See https://github.com/bartobri/bitcoin-toolkit for examples.


tool: D468: See 'btk help' to read about other commands.


assistant: ```c
void btk_help_pubkey(void) {
  printf("COMMAND\n");
  printf("\n");
  printf("   pubkey - calculate and format public keys from private keys.\n");
  printf("\n");
  printf("SYNOPSIS\n");
  printf("\n");
  printf("   btk pubkey [INPUT_OPTIONS] [OUTPUT_OPTIONS]\n");
  printf("\n");
  printf("DESCRIPTION");
  printf("\n");
  printf("   The pubkey command generates the corresponding public key from a given\n");
  printf("   private key. Input data should be a private key, or data from which a\n");
  printf("   private key can be derived, in the format specified by the input option.\n");
  printf("\n");
  printf("   The pubkey command will read data from standard input and interpret the\n");
  printf("   format according to the input option specified. If no input option is\n");
  printf("   specified, the pubkey command will read data from standard input and\n");
  printf("   attempt to automatically determine the format if it can be done with a\n");
  printf("   reasonable degree of certainty.\n");
  printf("\n");
  printf("   The pubkey command will calculate a public key from the provided input data\n");
  printf("   and print it in the format specified by the output option. If no output\n");
  printf("   option is specified, the public key will be formatted as a standard\n");
  printf("   bitcoin address. The public key will be compressed by default, unless\n");
  printf("   the input data contains a compression flag, in which case it will remain\n");
  printf("   consistent with the input data. If an output option is specified for\n");
  printf("   compression, the private key will be compressed in accordance with that\n");
  printf("   option, which will override any compression flag provided in the input data.\n");
  printf("\n");
  printf("   See INPUT OPTIONS and OUTPUT OPTIONS for more info.\n");
  printf("\n");
  printf("INPUT OPTIONS\n");
  printf("\n");
  printf("   -w\n");
  printf("      Treat input as a (w)allet import formatted (wif) string.\n");
  printf("\n");
  printf("   -h\n");
  printf("      Treat input as a (h)exadecimal formatted string. The string must be at\n");
  printf("      least 64 characters long. If a 65th and 66th character exist, they are\n");
  printf("      interpreted as a compression flag. Any extra characters beyond that point\n");
  printf("      are ignored.\n");
  printf("\n");
  printf("   -r\n");
  printf("      Treat input as (r)aw binary data. Input must be at least 32 bytes long.\n");
  printf("      If a 33rd byte exists, it is interpreted as a compression flag. Any\n");
  printf("      extra data beyond that point is ignored.\n");
  printf("\n");
  printf("   -s\n");
  printf("      Treat input as an arbitrary ASCII (s)tring. ASCII strings are processed\n");
  printf("      through a SHA256 hash algorithm to generate a 32 byte private key.\n");
  printf("\n");
  printf("   -d\n");
  printf("      Treat input as an ASCII string containing only (d)ecimal characters. The\n");
  printf("      decimal value is converted to its 32-byte binary equivalent to generate\n");
  printf("      a private key.\n");
  printf("\n");
  printf("   -b\n");
  printf("      Treat input as arbitrary (b)inary data. The data is processed through\n");
  printf("      a SHA256 hash algorithm to generate a 32 byte private key.\n");
  printf("\n");
  printf("OUTPUT OPTIONS\n");
  printf("\n");
  printf("   -A\n");
  printf("      Print public key as a traditional bitcoin (A)ddress. (default)\n");
  printf("\n");
  printf("   -B\n");
  printf("      Print public key as a (B)ech32 address.\n");
  printf("\n");
  printf("   -H\n");
  printf("      Print public key as a (H)exadecimal string. Note that a compressed\n");
  printf("      public key in hexadecimal format is 66 characters long. An uncompressed\n");
  printf("      public key is 130 characters long.\n");
  printf("\n");
  printf("   -R\n");
  printf("      Print public key as (R)aw binary data. This will result in 33 bytes for\n");
  printf("      a compressed public key and 65 bytes for an uncompressed public key.\n");
  printf("\n");
  printf("   -C\n");
  printf("      (C)ompress the public key. If -P is specified (see below), the\n");
  printf("      corresponding private key will also be compressed.\n");
  printf("\n");
  printf("   -U\n");
  printf("      (U)nompress the public key. If -P is specified (see below), the\n");
  printf("      corresponding private key will also be uncompressed.\n");
  printf("\n");
  printf("   -P\n");
  printf("      Include the (P)rivate key in the output. This option is most useful for\n");
  printf("      wrapper programs that want to generate and parse a private and public\n");
  printf("      key pair in a single command. The private key will be printed first,\n");
  printf("      followed by a single space, followed by the public key.\n");
  printf("\n");
  printf("   -N\n");
  printf("      Do NOT print a (N)ewline character. This may be a desirable option if\n");
  printf("      the output is being parsed by a wrapper program.\n");
  printf("\n");
  printf("   -T\n");
  printf("      If the -A or -B option is specified (or assumed by default), this option\n");
  printf("      sets the (T)ESTNET prefix so the public key is usable on the TESTNET\n");
  printf("      network. If the -P option is also specified, the private key will be\n");
  printf("      formatted for TESTNET network.\n");
  printf("\n");
  printf("   -M\n");
  printf("      If the -A or -B option is specified (or assumed by default), this option\n");
  printf("      sets the (M)AINNET prefix so the public key can be used on the MAINNET\n");
  printf("      network. Note that if no network flag is specified or included in the\n");
  printf("      input data, the MAINNET prefix is used by default. This option is only\n");
  printf("      useful for converting TESTNET keys to MAINNET. If the -P option is also\n");
  printf("      specified, the private key will be formatted for TESTNET network.\n");
  printf("\n");
  printf("See https://github.com/bartobri/bitcoin-toolkit for examples.\n");
  printf("See 'btk help' to read about other commands.\n");
  printf("\n");
}
```