DJm00n

#!/usr/bin/env node
'use strict';
/*
 * ftcomp_poc.js -- standalone decoder for IBM FTCOMP fT19/fT21 compression,
 * used inside OS/2 PACK2/FTCOMP archives.
 *
 * This is a faithful, address-literal transliteration of the decompiled
 * (Ghidra) C code found in:
 *   - TKXFER.EXE.c  (NE exe, "transfer" tool -- has BOTH encode (FUN_1000_902a)
 *     and decode (FUN_1000_889a / FUN_1000_9df2 / FUN_1000_6d38) logic, and

DJm00n

// full_align_test.cpp
//
// Сравнивает поведение старых (non-Ex) и новых (Ex) версий функций работы
// с иконками на предмет чувствительности к выравниванию входного буфера:
//   - CreateIconFromResource      vs  CreateIconFromResourceEx
//   - LookupIconIdFromDirectory   vs  LookupIconIdFromDirectoryEx
//
// Гипотеза: возможно, именно старые (non-Ex) версии реально требуют
// DWORD-aligned буфер, а Ex-версии — просто унаследовали формулировку
// в документации по инерции, хотя внутри используют более терпимый код.

DJm00n

The Curious Case of %ls, setlocale(), and UTF-8 on Windows

While debugging an issue with _vsnprintf_s() on Windows, I discovered that the behavior of %ls depends on the CRT locale, not on the Windows code page.

Consider this example:

std::string Log(const char* fmt, ...)
{
    char buffer[1024];

DJm00n

LSW5 AT Command Reference

Firmware: LSW5_32_5406_SS_04_00.00.00.11 (2025-02-06)
SoC: BL602 RISC-V, flash base 0x23000000
Decompiled source: LSW5_32_5406_SS_04_decompressed.bin.c

---

Authentication

DJm00n

Deye EV Charger → SolarMan Wi-Fi Logger Firmware Analysis

File: MW4_01_5429_SS_04_00.00.00.0B

---

Device Identification

Field	Value
Module	HiFlying HF-LPx70 (Bouffalo Lab BL602, RISC-V RV32IMACF)

DJm00n

MW4 AT Command Reference

Firmware: MW4_01_5429_SS_04_00.00.00.0B (2025-02-06)
SoC: BL602 RISC-V, flash base 0x23000000
Decompiled source: MW4_01_5429_SS_04_decompressed.bin.c

---

AT Command Interface (Cloud → Device)

DJm00n

Deye Inverter Logger (LSW5) Firmware Analysis Notes

Firmware: LSW5_32_5406_SS_04_00.00.00.11-u.bin
Decompressed: LSW5_32_5406_SS_04_decompressed.bin (1,062,168 bytes)
Build date: 2025-02-06 17:00
Version string: 3.00.16 (2025-02-06 17:00 8M) (L13558)
Module: HiFlying HF-LPx70 (Bouffalo Lab BL602 SoC, RISC-V RV32IMACF)
Flash base: 0x23000000 (XIP)
Container: HF-LPx70x1 Image — 256-byte header + LZMA at offset 0x100

DJm00n

deye_evse:
  logger:
    logs:
      custom_components.ev_smart_charger: debug

  template:
    - sensor:
        - name: "EV Charger Status Mapped"
          unique_id: ev_charger_status_mapped
          state: >

DJm00n

#include <windows.h>
#include <string>
#include <vector>

/*
 * Returns a BCP-47 language tag (e.g. "en-US", "uk-UA", "jv-Java")
 * for the given HKL (keyboard layout handle).
 *
 * WM_INPUTLANGCHANGE provides HKL, whose low word is LANGID. However,
 * for transient keyboard layouts (LOCALE_TRANSIENT_KEYBOARD*), LANGID

DJm00n

#include <windows.h>
#include <string>

/*
 * Returns a 3-letter uppercase language abbreviation (e.g. ENG, РУС, УКР)
 * derived from the language autonym using winlangdb.dll.
 *
 * This matches Windows UI behavior (language indicator in taskbar):
 * - Uses GetLanguageNames (undocumented, WinRT language database)
 * - Takes the first 3 characters of the autonym