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| Offset (relative) | Size | Field | |-------------------|------|-------| | 0x00 | 4 | Officer ID | | 0x04 | 2 | Level (1–20) | | 0x06 | 2 | Max HP (hex, e.g., 0x1F4 = 500) | | 0x08 | 2 | Attack | | 0x0A | 2 | Defense | | 0x0C | 2 | Musou | | 0x0E | 2 | Musou charge | | 0x10 | 2 | Speed | | 0x12 | 4 | Experience points | | 0x16 | 1 | Weapon proficiency (0–4 for sword/spear/etc.) | | 0x17–0x5B | 68 | Equipped items, orb, saddle, special abilities |
(full Python script available in supplementary materials). End of paper draft. Dynasty Warriors 4 Hyper Save Editor
The checksum covers bytes 0x0000 to 0x1FFFB , excluding the checksum field itself. The save file is divided into sections. Offsets are hexadecimal. | Offset (relative) | Size | Field |
Save Editor, Reverse Engineering, Dynasty Warriors 4 Hyper, Binary File Format, Checksum, Game Modding 1. Introduction Dynasty Warriors 4 Hyper remains a unique entry in Koei’s Warriors series, being one of the few PC ports of the fourth generation. However, the game lacks official modding support. Players seeking to adjust stats, unlock characters, or correct corrupted saves have no built-in mechanism to do so. This paper documents a custom save editor designed to fill that gap. The save file is divided into sections
uint32_t dw4_checksum(uint8_t *data, size_t len) uint32_t sum = 0xFFFFFFFF; for (size_t i = 0; i < len; i++) sum = (sum + data[i]) * 0x1F; sum &= 0xFFFFFFFF; return sum;