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

```asm
<mapstd>:
  endbr64
  push   %r14
  movd   %xmm1,%r14d
  push   %r12
  movslq %esi,%r12
  push   %rbp
  mov    %r12d,%esi
  mov    %rdx,%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x18,%rsp
  movss  %xmm0,0xc(%rsp)
  call   <mean@plt>
  mov    %r12d,%esi
  mov    %rbx,%rdi
  movss  %xmm0,0x8(%rsp)
  call   <std@plt>
  ucomiss D6(%rip),%xmm0
  movss  0x8(%rsp),%xmm3
  movss  0xc(%rsp),%xmm4
  jp     L15
  jne    L15
  test   %r12d,%r12d
  jle    L13
  lea    0x4(%rbx),%rdx
  mov    %rbp,%rax
  sub    %rdx,%rax
  cmp    $0x8,%rax
  jbe    L177
  lea    -0x1(%r12),%eax
  cmp    $0x2,%eax
  jbe    L177
  mov    %r12d,%edx
  xor    %eax,%eax
  shr    $0x2,%edx
  shl    $0x4,%rdx
  nopl   0x0(%rax)
L207:
  movups (%rbx,%rax,1),%xmm7
  movups %xmm7,0x0(%rbp,%rax,1)
  add    $0x10,%rax
  cmp    %rdx,%rax
  jne    L207
  mov    %r12d,%eax
  and    $0xfffffffc,%eax
  test   $0x3,%r12b
  je     L13
  mov    %eax,%ecx
  movss  (%rbx,%rcx,4),%xmm0
  lea    0x0(,%rcx,4),%rdx
  movss  %xmm0,0x0(%rbp,%rcx,4)
  lea    0x1(%rax),%ecx
  cmp    %r12d,%ecx
  jge    L13
  movss  0x4(%rbx,%rdx,1),%xmm0
  add    $0x2,%eax
  movss  %xmm0,0x4(%rbp,%rdx,1)
  cmp    %eax,%r12d
  jle    L13
  movss  0x8(%rbx,%rdx,1),%xmm0
  movss  %xmm0,0x8(%rbp,%rdx,1)
L13:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r14
  ret
  xchg   %ax,%ax
L15:
  movd   %r14d,%xmm2
  divss  %xmm0,%xmm2
  test   %r12d,%r12d
  jle    L13
  lea    0x4(%rbx),%rdx
  mov    %rbp,%rax
  sub    %rdx,%rax
  cmp    $0x8,%rax
  jbe    L70
  cmp    $0x1,%r12d
  je     L70
  lea    -0x1(%r12),%eax
  mov    %r12d,%ecx
  cmp    $0x2,%eax
  jbe    L83
  mov    %r12d,%edx
  movaps %xmm3,%xmm6
  movaps %xmm2,%xmm5
  xor    %eax,%eax
  shr    $0x2,%edx
  movaps %xmm4,%xmm1
  shufps $0x0,%xmm6,%xmm6
  shufps $0x0,%xmm5,%xmm5
  shl    $0x4,%rdx
  shufps $0x0,%xmm1,%xmm1
  xchg   %ax,%ax
L132:
  movups (%rbx,%rax,1),%xmm0
  subps  %xmm6,%xmm0
  mulps  %xmm5,%xmm0
  addps  %xmm1,%xmm0
  movups %xmm0,0x0(%rbp,%rax,1)
  add    $0x10,%rax
  cmp    %rdx,%rax
  jne    L132
  mov    %r12d,%edx
  and    $0xfffffffc,%edx
  mov    %edx,%eax
  cmp    %edx,%r12d
  je     L13
  mov    %r12d,%ecx
  sub    %edx,%ecx
  cmp    $0x1,%ecx
  je     L210
L21:
  movq   (%rbx,%rdx,4),%xmm0
  movaps %xmm3,%xmm1
  shufps $0xe0,%xmm1,%xmm1
  subps  %xmm1,%xmm0
  movaps %xmm2,%xmm1
  shufps $0xe0,%xmm1,%xmm1
  mulps  %xmm1,%xmm0
  movaps %xmm4,%xmm1
  shufps $0xe0,%xmm1,%xmm1
  addps  %xmm1,%xmm0
  movlps %xmm0,0x0(%rbp,%rdx,4)
  mov    %ecx,%edx
  and    $0xfffffffe,%edx
  add    %edx,%eax
  cmp    %edx,%ecx
  je     L13
L210:
  cltq
  movss  (%rbx,%rax,4),%xmm1
  subss  %xmm3,%xmm1
  mulss  %xmm2,%xmm1
  addss  %xmm4,%xmm1
  movss  %xmm1,0x0(%rbp,%rax,4)
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r14
  ret
  nopl   0x0(%rax)
L70:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L218:
  movss  (%rbx,%rax,4),%xmm0
  subss  %xmm3,%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm4,%xmm0
  movss  %xmm0,0x0(%rbp,%rax,4)
  add    $0x1,%rax
  cmp    %r12,%rax
  jne    L218
  jmp    L13
  nopl   (%rax)
L177:
  mov    %r12d,%r12d
  xor    %eax,%eax
  nopl   (%rax)
L125:
  movss  (%rbx,%rax,4),%xmm0
  movss  %xmm0,0x0(%rbp,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%r12
  jne    L125
  jmp    L13
L83:
  xor    %edx,%edx
  xor    %eax,%eax
  jmp    L21
```

tool_calls: name: disassemble_data
arguments: label: D6
data_type: byte[4]

tool: {"D6": [0x00,0x00,0x00,0x00]}

assistant: ```c
void mapstd(float *x, int N, float ymean, float ystd, float *y) {
  float xmean, xstd, t;
  int i;
  xmean = mean(x, N);
  xstd = std(x, N);
  if (xstd != 0) {
    t = ystd / xstd;
    for (i = 0; i < N; ++i) {
      y[i] = (x[i] - xmean) * t + ymean;
    }
  } else {
    for (i = 0; i < N; ++i) {
      y[i] = x[i];
    }
  }
}
```