/* Ground-truth C for FUN_00000aac @ blob offset 0xaac (28 bytes / 7 insts).
 *
 * Pattern:  byte-wise memset with a simple counting loop.
 * Signature:  void memset_byte(void *buf, uint8_t val, size_t len);
 *
 * AArch64 ABI:  X0 = buf, W1 = val (low byte), X2 = len
 * Scratch:      X3 = index i
 *
 * Notes the decompiler should ideally recover:
 *   - This is unambiguously "memset" semantics; bonus points for naming it so.
 *   - The loop structure is pre-test (cmp before body) — tools should emit
 *     `while (i != len)` or `for (; i < len; ...)`.
 *   - W1 is truncated to a byte by the STRB; decompiler should mark val as u8.
 */
#include <stddef.h>
#include <stdint.h>

void memset_byte(void *buf, uint8_t val, size_t len) {
    size_t i = 0;
    while (i != len) {
        ((uint8_t *)buf)[i] = val;
        i++;
    }
}