user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<fpattern_submatch>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  movzbl (%rdi),%ebx
  mov    %rsi,0x8(%rsp)
  mov    %edx,0x14(%rsp)
  test   %bl,%bl
  je     L85
  mov    %rdi,%r14
  mov    %ecx,%r15d
L248:
  mov    0x8(%rsp),%rax
  movsbl (%rax),%r13d
  lea    0x1(%r14),%rax
  mov    %rax,(%rsp)
  cmp    $0x5b,%bl
  je     L88
  jg     L195
  cmp    $0x2a,%bl
  je     L205
  cmp    $0x3f,%bl
  jne    L541
  mov    0x14(%rsp),%eax
  test   %eax,%eax
  je     L34
  mov    (%rsp),%r14
  sub    $0x1,%eax
  addq   $0x1,0x8(%rsp)
  mov    %eax,0x14(%rsp)
  movzbl (%r14),%ebx
  test   %bl,%bl
  jne    L248
L85:
  mov    0x14(%rsp),%edx
  xor    %eax,%eax
  test   %edx,%edx
  sete   %al
  jmp    L295
L541:
  cmp    $0x21,%bl
  jne    L469
  cmpb   $0x0,0x1(%r14)
  jne    L427
  nopl   0x0(%rax)
L34:
  xor    %eax,%eax
L295:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L195:
  cmp    $0x5c,%bl
  je     L434
  cmp    $0x7b,%bl
  jne    L469
  movzbl 0x1(%r14),%eax
  movl   $0x0,0x18(%rsp)
  movl   $0x1,0x1c(%rsp)
  cmp    $0x21,%al
  je     L256
  nop
L577:
  test   %al,%al
  je     L545
  cmp    $0x7d,%al
  je     L545
  mov    (%rsp),%r12
  jmp    L380
  cs nopw 0x0(%rax,%rax,1)
L213:
  add    $0x1,%r12
  mov    %ebp,%r14d
L546:
  test   %al,%al
  je     L34
  mov    %r15d,%esi
  mov    %r13d,%edi
  call   <lowercase@plt>
  mov    %r15d,%esi
  mov    %ebp,%edi
  mov    %eax,%ebx
  call   <lowercase@plt>
  cmp    %eax,%ebx
  jge    L349
  movzbl (%r12),%eax
  cmp    $0x7d,%al
  je     L332
L296:
  test   %al,%al
  je     L332
L380:
  cmp    $0x5c,%al
  sete   %al
  movzbl %al,%eax
  add    %rax,%r12
  movzbl (%r12),%eax
  test   %al,%al
  je     L34
  movsbl %al,%ebp
  movzbl 0x1(%r12),%eax
  cmp    $0x2d,%al
  jne    L213
  movsbl 0x2(%r12),%r14d
  lea    0x2(%r12),%rsi
  cmp    $0x5c,%r14b
  jne    L326
  movsbl 0x3(%r12),%r14d
  lea    0x3(%r12),%rsi
L326:
  test   %r14b,%r14b
  je     L89
  movzbl 0x1(%rsi),%eax
  lea    0x1(%rsi),%r12
  jmp    L546
  nopw   0x0(%rax,%rax,1)
L349:
  mov    %r15d,%esi
  mov    %r13d,%edi
  call   <lowercase@plt>
  mov    %r15d,%esi
  mov    %r14d,%edi
  mov    %eax,%ebx
  call   <lowercase@plt>
  cmp    %eax,%ebx
  jle    L720
  movzbl (%r12),%eax
  cmp    $0x7d,%al
  jne    L296
  nopl   0x0(%rax)
L332:
  mov    0x18(%rsp),%edi
L279:
  test   %al,%al
  je     L34
  test   %edi,%edi
  jne    L409
L23:
  movzbl 0x1(%r12),%ebx
  lea    0x1(%r12),%r14
  test   %bl,%bl
  jne    L248
  jmp    L85
L169:
  test   %al,%al
  je     L599
  add    $0x1,%r12
L720:
  movzbl (%r12),%eax
  cmp    $0x7d,%al
  jne    L169
L599:
  mov    0x1c(%rsp),%edi
  jmp    L279
  nopw   0x0(%rax,%rax,1)
L409:
  subl   $0x1,0x14(%rsp)
  mov    0x14(%rsp),%eax
  addq   $0x1,0x8(%rsp)
  mov    0x8(%rsp),%rdx
  test   %eax,%eax
  jle    L23
  mov    (%rsp),%rax
  movsbl (%rdx),%r13d
  movzbl (%rax),%eax
  jmp    L577
  nopl   0x0(%rax,%rax,1)
L205:
  movslq 0x14(%rsp),%r14
  mov    0x8(%rsp),%r12
  xor    %ebx,%ebx
  add    %r14,%r12
  test   %r14d,%r14d
  jns    L118
  jmp    L34
  nopl   0x0(%rax)
L363:
  mov    %rax,%rbx
L118:
  mov    %r12,%rsi
  mov    (%rsp),%rdi
  mov    %r15d,%ecx
  mov    %ebx,%edx
  sub    %rbx,%rsi
  call   <fpattern_submatch>
  test   %eax,%eax
  jne    L623
  lea    0x1(%rbx),%rax
  cmp    %rbx,%r14
  jne    L363
  jmp    L34
L88:
  movzbl 0x1(%r14),%eax
  cmp    $0x21,%al
  je     L200
  test   %al,%al
  je     L34
  cmp    $0x5d,%al
  je     L34
  movl   $0x1,0x18(%rsp)
  xor    %r12d,%r12d
  jmp    L141
  nopw   0x0(%rax,%rax,1)
L68:
  add    $0x1,%rcx
  mov    %ebp,%r14d
  mov    %rcx,(%rsp)
L521:
  test   %al,%al
  je     L34
  mov    %r15d,%esi
  mov    %r13d,%edi
  call   <lowercase@plt>
  mov    %r15d,%esi
  mov    %ebp,%edi
  mov    %eax,%ebx
  call   <lowercase@plt>
  cmp    %eax,%ebx
  jge    L486
L722:
  mov    (%rsp),%rax
  movzbl (%rax),%eax
  cmp    $0x5d,%al
  je     L493
  test   %al,%al
  je     L493
L141:
  cmp    $0x5c,%al
  sete   %al
  movzbl %al,%eax
  add    %rax,(%rsp)
  mov    (%rsp),%rcx
  movzbl (%rcx),%eax
  test   %al,%al
  je     L34
  movsbl %al,%ebp
  movzbl 0x1(%rcx),%eax
  cmp    $0x2d,%al
  jne    L68
  mov    (%rsp),%rax
  movsbl 0x2(%rax),%r14d
  add    $0x2,%rax
  cmp    $0x5c,%r14b
  jne    L554
  mov    (%rsp),%rdx
  movsbl 0x3(%rdx),%r14d
  lea    0x3(%rdx),%rax
L554:
  test   %r14b,%r14b
  je     L581
  lea    0x1(%rax),%rdx
  movzbl 0x1(%rax),%eax
  mov    %rdx,(%rsp)
  jmp    L521
  nopl   (%rax)
L486:
  mov    %r15d,%esi
  mov    %r13d,%edi
  call   <lowercase@plt>
  mov    %r15d,%esi
  mov    %r14d,%edi
  mov    %eax,%ebx
  call   <lowercase@plt>
  cmp    %eax,%ebx
  cmovle 0x18(%rsp),%r12d
  jmp    L722
  nopl   (%rax)
L434:
  movsbl 0x1(%r14),%ebx
  mov    %r15d,%esi
  mov    %r13d,%edi
  call   <lowercase@plt>
  mov    %r15d,%esi
  mov    %ebx,%edi
  mov    %eax,%ebp
  call   <lowercase@plt>
  test   %ebx,%ebx
  je     L34
  cmp    %eax,%ebp
  jne    L34
  movzbl 0x2(%r14),%ebx
  add    $0x2,%r14
  addq   $0x1,0x8(%rsp)
  subl   $0x1,0x14(%rsp)
  test   %bl,%bl
  jne    L248
  jmp    L85
  nopl   (%rax)
L469:
  mov    %r15d,%esi
  mov    %r13d,%edi
  call   <lowercase@plt>
  movsbl %bl,%edi
  mov    %r15d,%esi
  mov    %eax,%r14d
  call   <lowercase@plt>
  cmp    %eax,%r14d
  jne    L34
  mov    (%rsp),%r14
  addq   $0x1,0x8(%rsp)
  subl   $0x1,0x14(%rsp)
  movzbl (%r14),%ebx
  test   %bl,%bl
  jne    L248
  jmp    L85
  nopw   0x0(%rax,%rax,1)
L89:
  movzbl (%rsi),%eax
  mov    0x18(%rsp),%edi
  mov    %rsi,%r12
  jmp    L279
L427:
  mov    0x14(%rsp),%edx
  mov    0x8(%rsp),%rsi
  mov    %r15d,%ecx
  mov    (%rsp),%rdi
  call   <fpattern_submatch>
  test   %eax,%eax
  sete   %al
  add    $0x28,%rsp
  pop    %rbx
  movzbl %al,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L256:
  lea    0x2(%r14),%rax
  movl   $0x1,0x18(%rsp)
  mov    %rax,(%rsp)
  movzbl 0x2(%r14),%eax
  movl   $0x0,0x1c(%rsp)
  jmp    L577
L581:
  mov    %rax,(%rsp)
L493:
  test   %r12d,%r12d
  je     L34
  mov    (%rsp),%rax
  movzbl (%rax),%eax
L515:
  test   %al,%al
  je     L34
  mov    (%rsp),%r14
  addq   $0x1,0x8(%rsp)
  subl   $0x1,0x14(%rsp)
  movzbl 0x1(%r14),%ebx
  add    $0x1,%r14
  test   %bl,%bl
  jne    L248
  jmp    L85
  cs nopw 0x0(%rax,%rax,1)
L200:
  lea    0x2(%r14),%rax
  mov    %rax,(%rsp)
  movzbl 0x2(%r14),%eax
  cmp    $0x5d,%al
  je     L515
  test   %al,%al
  je     L34
  movl   $0x0,0x18(%rsp)
  mov    $0x1,%r12d
  jmp    L141
L623:
  mov    $0x1,%eax
  jmp    L295
L545:
  mov    0x18(%rsp),%edi
  mov    (%rsp),%r12
  jmp    L279
```

assistant: ```c
int fpattern_submatch(const char *pat, const char *fname, int flength, int keepcase) {
  int fch;
  int pch;
  int i;
  int yes, match;
  int lo, hi;
  while (*pat != '\0') {
    fch = *fname;
    pch = *pat;
    pat++;
    switch (pch) {
    case '?':
      if (flength == 0)
        return (0);
      fname++;
      flength--;
      break;
    case '*':
      i = flength;
      while (i >= 0) {
        if (fpattern_submatch(pat, fname + i, flength - i, keepcase))
          return (1);
        i--;
      }
      return (0);
    case '\\':
      pch = *pat;
      if (lowercase(fch, keepcase) != lowercase(pch, keepcase) || pch == '\0')
        return (0);
      fname++;
      flength--;
      pat++;
      break;
    case '[':
      yes = 1;
      if (*pat == '!') {
        pat++;
        yes = 0;
      }
      match = !yes;
      while (*pat != ']' && *pat != '\0') {
        if (*pat == '\\')
          pat++;
        if (*pat == '\0')
          break;
        lo = *pat++;
        hi = lo;
        if (*pat == '-') {
          pat++;
          if (*pat == '\\')
            pat++;
          if (*pat == '\0')
            break;
          hi = *pat++;
        }
        if (*pat == '\0')
          break;
        if (lowercase(fch, keepcase) >= lowercase(lo, keepcase) && lowercase(fch, keepcase) <= lowercase(hi, keepcase))
          match = yes;
      }
      if (!match)
        return (0);
      if (*pat == '\0')
        return (0);
      fname++;
      flength--;
      pat++;
      break;
    case '{':
      yes = 1;
      if (*pat == '!') {
        pat++;
        yes = 0;
      }
      do {
        const char *org_pat = pat;
        match = !yes;
        while (*pat != '}' && *pat != '\0') {
          if (*pat == '\\')
            pat++;
          if (*pat == '\0')
            break;
          lo = *pat++;
          hi = lo;
          if (*pat == '-') {
            pat++;
            if (*pat == '\\')
              pat++;
            if (*pat == '\0')
              break;
            hi = *pat++;
          }
          if (*pat == '\0')
            break;
          if (lowercase(fch, keepcase) >= lowercase(lo, keepcase) && lowercase(fch, keepcase) <= lowercase(hi, keepcase)) {
            match = yes;
            while (*pat != '}' && *pat != '\0')
              pat++;
            break;
          }
        }
        if (*pat == '\0')
          return (0);
        if (match) {
          fname++;
          flength--;
          fch = *fname;
          if (flength > 0)
            pat = org_pat;
        }
      } while (match && flength > 0);
      pat++;
      break;
    case '!':
      if (*pat == '\0')
        return (0);
      i = fpattern_submatch(pat, fname, flength, keepcase);
      return !i;
    default:
      if (lowercase(fch, keepcase) != lowercase(pch, keepcase))
        return (0);
      fname++;
      flength--;
      break;
    }
  }
  if (flength != 0)
    return (0);
  return (1);
}
```