user: Demonstrate the C code that generates the assembly output below:

```asm
<compositeSourceAtop>:
  endbr64
  imul   %ecx,%edx
  lea    0x0(,%rdx,4),%ecx
  movslq %ecx,%rcx
  add    %rsi,%rcx
  cmp    %rcx,%rsi
  jae    L69
  lea    0x4(%rdi),%rax
  movsd  D32(%rip),%xmm5
  movss  D5(%rip),%xmm7
  movss  D28(%rip),%xmm6
  mov    $0xff,%r11d
  mov    $0xff00,%r10d
  mov    $0xff0000,%r9d
  pxor   %xmm11,%xmm11
  movaps %xmm11,%xmm10
  movaps %xmm11,%xmm9
  movaps %xmm11,%xmm8
  jmp    L26
L41:
  movzbl 0x3(%rsi),%r8d
  test   %r8d,%r8d
  je     L6
  pxor   %xmm1,%xmm1
  cvtsi2sd %edx,%xmm1
  divsd  %xmm5,%xmm1
  cvtsd2ss %xmm1,%xmm1
  pxor   %xmm0,%xmm0
  cvtsi2sd %r8d,%xmm0
  divsd  %xmm5,%xmm0
  cvtsd2ss %xmm0,%xmm0
  movaps %xmm7,%xmm12
  subss  %xmm0,%xmm12
  movzbl (%rsi),%edx
  pxor   %xmm4,%xmm4
  cvtsi2ss %edx,%xmm4
  mulss  %xmm1,%xmm4
  movzbl -0x4(%rax),%edx
  pxor   %xmm2,%xmm2
  cvtsi2ss %edx,%xmm2
  mulss  %xmm12,%xmm2
  addss  %xmm2,%xmm4
  movzbl 0x1(%rsi),%edx
  pxor   %xmm3,%xmm3
  cvtsi2ss %edx,%xmm3
  mulss  %xmm1,%xmm3
  movzbl -0x3(%rax),%edx
  pxor   %xmm2,%xmm2
  cvtsi2ss %edx,%xmm2
  mulss  %xmm12,%xmm2
  addss  %xmm2,%xmm3
  movzbl 0x2(%rsi),%edx
  pxor   %xmm2,%xmm2
  cvtsi2ss %edx,%xmm2
  mulss  %xmm1,%xmm2
  movzbl -0x2(%rax),%edx
  pxor   %xmm13,%xmm13
  cvtsi2ss %edx,%xmm13
  mulss  %xmm12,%xmm13
  addss  %xmm13,%xmm2
  mulss  %xmm1,%xmm0
  mulss  %xmm12,%xmm1
  addss  %xmm1,%xmm0
  mulss  %xmm6,%xmm0
  mov    %r11d,%edx
  comiss D28(%rip),%xmm4
  ja     L70
  mov    $0x0,%edx
  comiss %xmm4,%xmm8
  ja     L70
  cvttss2si %xmm4,%edx
L70:
  mov    %r10d,%r8d
  comiss D28(%rip),%xmm3
  ja     L71
  mov    $0x0,%r8d
  comiss %xmm3,%xmm9
  ja     L71
  cvttss2si %xmm3,%r8d
  shl    $0x8,%r8d
L71:
  or     %r8d,%edx
  mov    %r9d,%r8d
  comiss D28(%rip),%xmm2
  ja     L114
  mov    $0x0,%r8d
  comiss %xmm2,%xmm10
  ja     L114
  cvttss2si %xmm2,%r8d
  shl    $0x10,%r8d
L114:
  or     %r8d,%edx
  mov    $0xff000000,%r8d
  comiss D28(%rip),%xmm0
  ja     L22
  mov    $0x0,%r8d
  comiss %xmm0,%xmm11
  ja     L22
  cvttss2si %xmm0,%r8d
  shl    $0x18,%r8d
L22:
  or     %r8d,%edx
  mov    %edx,-0x4(%rdi)
L6:
  add    $0x4,%rsi
  add    $0x4,%rax
  cmp    %rsi,%rcx
  jbe    L69
L26:
  mov    %rax,%rdi
  movzbl -0x1(%rax),%edx
  test   %edx,%edx
  jne    L41
  movl   $0x0,-0x4(%rax)
  jmp    L6
L69:
  ret
```

tool_calls: name: disassemble_data
arguments: tag: D32
type_guessed: f64
name: disassemble_data
arguments: tag: D5
type_guessed: f32
name: disassemble_data
arguments: tag: D28
type_guessed: byte[4]

tool: D32: 255

tool: D5: 1

tool: {"D28": [0x00,0x00,0x7f,0x43]}

assistant: ```c
void compositeSourceAtop(unsigned char *dst, unsigned char *src, int width, int height) {
  unsigned char *end = src + ((width * height) << 2);
  unsigned int *dst32 = (unsigned int *)dst;
  int d, s;
  float rr, rg, rb, ra;
  float sa, sa_inv;
  float da;
  while (src < end) {
    d = *(dst + 3);
    if (d == 0) {
      *dst32++ = 0;
    } else {
      s = *(src + 3);
      if (s == 0) {
        dst32++;
      } else {
        da = d / 255.0;
        sa = s / 255.0;
        sa_inv = (1.0 - sa);
        rr = *src * da + *dst * sa_inv;
        rg = *(src + 1) * da + *(dst + 1) * sa_inv;
        rb = *(src + 2) * da + *(dst + 2) * sa_inv;
        ra = (sa * da + da * sa_inv) * 255.0;
        *dst32++ = (int)((rr) > 0xff ? 0xff : ((rr) < 0 ? 0 : (rr))) | (int)((rg) > 0xff ? 0xff : ((rg) < 0 ? 0 : (rg))) << 8 | (int)((rb) > 0xff ? 0xff : ((rb) < 0 ? 0 : (rb))) << 16 | (int)((ra) > 0xff ? 0xff : ((ra) < 0 ? 0 : (ra))) << 24;
      }
    }
    src += 4;
    dst += 4;
  }
}
```