user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<mode>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %edi,%r15d
  mov    %edx,%ebx
  mov    %ecx,%ebp
  mov    %r8d,%r12d
  movsbl %sil,%r14d
  mov    %r14d,%edi
  call   <stox@plt>
  and    $0x4,%eax
  mov    %eax,%r13d
  mov    %r14d,%edi
  call   <stox@plt>
  movsbl %bl,%edi
  call   <stox@plt>
  mov    %eax,%r14d
  movsbl %r12b,%edi
  call   <stox@plt>
  mov    %eax,%r12d
  movsbl %r15b,%edi
  call   <stox@plt>
  mov    %eax,%ebx
  movsbl %bpl,%edi
  call   <stox@plt>
  cmp    $0x5,%ebx
  ja     L181
  mov    %eax,%ecx
  mov    %ebx,%ebx
  lea    D155(%rip),%rax
  movslq (%rax,%rbx,4),%rdx
  add    %rax,%rdx
  notrack jmp *%rdx
  lea    D183(%rip),%rax
L80:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  test   %r13d,%r13d
  lea    D141(%rip),%rax
  lea    D129(%rip),%rdx
  cmove  %rdx,%rax
  jmp    L80
  test   %r13d,%r13d
  je     L146
  lea    D2(%rip),%rax
  cmp    $0x4,%r12b
  je     L80
  jg     L91
  lea    D136(%rip),%rax
  test   %r12b,%r12b
  je     L80
  cmp    $0x2,%r12b
  lea    D125(%rip),%rax
  lea    D130(%rip),%rdx
  cmove  %rdx,%rax
  jmp    L80
L91:
  cmp    $0x6,%r12b
  lea    D125(%rip),%rax
  lea    D231(%rip),%rdx
  cmove  %rdx,%rax
  jmp    L80
L146:
  lea    D70(%rip),%rax
  cmp    $0x4,%r12b
  je     L80
  jg     L107
  lea    D162(%rip),%rax
  test   %r12b,%r12b
  je     L80
  cmp    $0x2,%r12b
  lea    D77(%rip),%rax
  lea    D131(%rip),%rdx
  cmove  %rdx,%rax
  jmp    L80
L107:
  cmp    $0x6,%r12b
  lea    D77(%rip),%rax
  lea    D36(%rip),%rdx
  cmove  %rdx,%rax
  jmp    L80
  test   $0x8,%r14b
  lea    D120(%rip),%rax
  lea    D50(%rip),%rdx
  cmove  %rdx,%rax
  jmp    L80
  lea    D159(%rip),%rax
  cmp    $0x4,%cl
  je     L80
  lea    D11(%rip),%rax
  cmp    $0x5,%cl
  je     L80
  cmp    $0x6,%cl
  lea    D24(%rip),%rax
  lea    D79(%rip),%rdx
  cmovne %rdx,%rax
  jmp    L80
L181:
  lea    D63(%rip),%rax
  jmp    L80
  lea    D199(%rip),%rax
  jmp    L80
```

tool_calls: name: disassemble_data
arguments: data_tag: D183
type_infered: string
name: disassemble_data
arguments: data_tag: D141
type_infered: string
name: disassemble_data
arguments: data_tag: D129
type_infered: string
name: disassemble_data
arguments: data_tag: D2
type_infered: string
name: disassemble_data
arguments: data_tag: D136
type_infered: string
name: disassemble_data
arguments: data_tag: D125
type_infered: string
name: disassemble_data
arguments: data_tag: D130
type_infered: string
name: disassemble_data
arguments: data_tag: D231
type_infered: string
name: disassemble_data
arguments: data_tag: D70
type_infered: string
name: disassemble_data
arguments: data_tag: D162
type_infered: string
name: disassemble_data
arguments: data_tag: D77
type_infered: string
name: disassemble_data
arguments: data_tag: D131
type_infered: string
name: disassemble_data
arguments: data_tag: D36
type_infered: string
name: disassemble_data
arguments: data_tag: D120
type_infered: string
name: disassemble_data
arguments: data_tag: D50
type_infered: string
name: disassemble_data
arguments: data_tag: D159
type_infered: string
name: disassemble_data
arguments: data_tag: D11
type_infered: string
name: disassemble_data
arguments: data_tag: D24
type_infered: string
name: disassemble_data
arguments: data_tag: D79
type_infered: string
name: disassemble_data
arguments: data_tag: D63
type_infered: string
name: disassemble_data
arguments: data_tag: D199
type_infered: string

tool: D183: USB

tool: D141: CW REV

tool: D129: CW

tool: D2: DATA REV, fsk D

tool: D136: DATA REV, data A

tool: D125: DATA REV, ???

tool: D130: DATA REV, afsk A

tool: D231: DATA REV, psk D

tool: D70: DATA, fsk D

tool: D162: DATA, data A

tool: D77: DATA, ???

tool: D131: DATA, afsk A

tool: D36: DATA, psk D

tool: D120: AM-S

tool: D50: AM

tool: D159: FM

tool: D11: FM+

tool: D24: FM-

tool: D79: FM?

tool: D63: ?

tool: D199: LSB

assistant: ```c
const char *mode(char modeChar, char altChar, char flags7, char fmInfo, char dataMode) {
  int modeByte, revCw, revMode;
  revCw = stox(altChar) & 0x4;
  revMode = stox(altChar) & 0x1;
  flags7 = stox(flags7);
  dataMode = stox(dataMode);
  modeByte = stox(modeChar);
  fmInfo = stox(fmInfo);
  switch (modeByte) {
  case 0:
    return revCw ? "CW REV" : "CW";
  case 1:
    return "LSB";
  case 2:
    return "USB";
  case 3:
    if (revCw)
      switch (dataMode) {
      case 0:
        return "DATA REV, data A";
      case 2:
        return "DATA REV, afsk A";
      case 4:
        return "DATA REV, fsk D";
      case 6:
        return "DATA REV, psk D";
      default:
        return "DATA REV, ???";
      }
    else
      switch (dataMode) {
      case 0:
        return "DATA, data A";
      case 2:
        return "DATA, afsk A";
      case 4:
        return "DATA, fsk D";
      case 6:
        return "DATA, psk D";
      default:
        return "DATA, ???";
      }
  case 4:
    return flags7 & 0x8 ? "AM-S" : "AM";
  case 5:
    if (fmInfo == 0x04)
      return "FM";
    else if (fmInfo == 0x05)
      return "FM+";
    else if (fmInfo == 0x06)
      return "FM-";
    else {
      return "FM?";
    }
  default:
    return "?";
  }
}
```