/* ============================================================================
        * Type definitions - Options structure
        * ============================================================================ */
       struct option_s
       {
               /* Basic settings */
               int Magic;
               char Autorun;
               char Tab;
               char Invert;
               char Listcase; // 8 bytes

               /* Memory configuration */
               unsigned int PROG_FLASH_SIZE;
               unsigned int HEAP_SIZE;

               /* Display dimensions */
#ifndef PICOMITEVGA
               char Height;
               char Width;
#else
       short d2;
#endif

               /* Display configuration */
               unsigned char DISPLAY_TYPE;
               char DISPLAY_ORIENTATION; // 12-20 bytes

               /* Security and communication */
               int PIN;
               int Baudrate;
               int8_t ColourCode;
               unsigned char MOUSE_CLOCK;
               unsigned char MOUSE_DATA;
               char spare;
               int CPU_Speed;
               unsigned int Telnet; // Also stores size of program flash (start of LIBRARY code)

               /* Color settings */
               int DefaultFC, DefaultBC; // Default colors
               short version;            // 40 bytes

               /* Keyboard configuration */
               unsigned char KEYBOARD_CLOCK;
               unsigned char KEYBOARD_DATA;
               unsigned char continuation;
               unsigned char LOCAL_KEYBOARD;
               unsigned char KeyboardBrightness;
               uint8_t special; // used for special board configurations

               /* Font and RTC */
               unsigned char DefaultFont;
               unsigned char KeyboardConfig;
               unsigned char RTC_Clock;
               unsigned char RTC_Data; // 60 bytes

               /* Platform-specific configuration */
#if PICOMITERP2350
               unsigned char LCD_CLK;
               unsigned char LCD_MOSI;
               unsigned char LCD_MISO;
               char dummy; // 64 bytes
#endif

#if defined(PICOMITE) && !defined(rp2350)
               char dummy[4]; // 64 bytes
#endif

#ifdef PICOMITEWEB
               uint16_t TCP_PORT;
               uint16_t ServerResponceTime;
#endif

#ifdef PICOMITEVGA
               int16_t X_TILE;
               int16_t Y_TILE;
#endif

               /* SPI LCD pins */
               unsigned char LCD_CD;
               unsigned char LCD_CS;
               unsigned char LCD_Reset;

               /* Touch screen configuration */
               unsigned char TOUCH_CS;
               unsigned char TOUCH_IRQ;
               char TOUCH_SWAPXY;
               unsigned char repeat;
               char disabletftp; // 72 bytes

               /* Touch calibration */
#ifndef PICOMITEVGA
               int TOUCH_XZERO;
               int TOUCH_YZERO;
               float TOUCH_XSCALE;
               float TOUCH_YSCALE; // 88 bytes
#else
       short Height;
       short Width;
       char dummy[12];
#endif

               /* GUI or HDMI configuration.
                  Layout rules (the saved-flash struct must stay
                  byte-compatible with prior firmwares for each variant):
                  * Touch-screen builds (GUICONTROLS, !PICOMITEVGA): this
                    4-byte slot holds MaxCtrls + spare3[3]. Unchanged.
                  * Legacy HDMI/VGA builds (PICOMITEVGA, !GUICONTROLS):
                    this slot holds the HDMI lane mapping. Unchanged.
                  * New mouse-GUI VGA/HDMI builds (both flags): we keep
                    the HDMI lane mapping in this slot for binary
                    compatibility, and stash MaxCtrls in the first byte
                    of extensions[] further down. */
#if defined(GUICONTROLS) && !defined(PICOMITEVGA)
               //                uint8_t MaxCtrls;
               unsigned char spare3[4];
#else
       uint8_t HDMIclock;
       uint8_t HDMId0;
       uint8_t HDMId1;
       uint8_t HDMId2;
#endif

               /* Flash and SD card */
               unsigned int FlashSize; // 96 bytes
               unsigned char SD_CS;
               unsigned char SYSTEM_MOSI;
               unsigned char SYSTEM_MISO;
               unsigned char SYSTEM_CLK;

               /* Display backlight and console */
               unsigned char DISPLAY_BL;
               unsigned char DISPLAY_CONSOLE;
               unsigned char TOUCH_Click;
               char LCD_RD; // Used for RD pin for SSD1963, 104 bytes

               /* Audio configuration */
               unsigned char AUDIO_L;
               unsigned char AUDIO_R;
               unsigned char AUDIO_SLICE;
               unsigned char SDspeed;
               unsigned char pinsx[3]; // General use storage for CFunctions

               /* Touch and display */
               unsigned char TOUCH_CAP;
               unsigned char SSD_DATA;
               unsigned char THRESHOLD_CAP;
               unsigned char audio_i2s_data;
               unsigned char audio_i2s_bclk;
               char LCDVOP;
               char I2Coffset;
               unsigned char NoHeartbeat;
               char Refresh;

               /* System I2C and RTC */
               unsigned char SYSTEM_I2C_SDA;
               unsigned char SYSTEM_I2C_SCL;
               unsigned char RTC;
               char PWM; // 124 bytes

               /* Interrupt pins */
               unsigned char INT1pin;
               unsigned char INT2pin;
               unsigned char INT3pin;
               unsigned char INT4pin;

               /* SD card pins */
               unsigned char SD_CLK_PIN;
               unsigned char SD_MOSI_PIN;
               unsigned char SD_MISO_PIN;

               /* Serial console */
               unsigned char SerialConsole; // 132 bytes
               unsigned char SerialTX;
               unsigned char SerialRX;

               /* Keyboard lock status */
               unsigned char numlock;
               unsigned char capslock; // 136 bytes

               /* Library flash size */
               unsigned int LIBRARY_FLASH_SIZE; // 140 bytes

               /* Audio pins */
               unsigned char AUDIO_CLK_PIN;
               unsigned char AUDIO_MOSI_PIN;
               unsigned char SYSTEM_I2C_SLOW;
               unsigned char AUDIO_CS_PIN; // 144 bytes

               /* Network configuration (PICOMITEWEB) */
#ifdef PICOMITEWEB
               uint16_t UDP_PORT;
               uint16_t UDPServerResponceTime;
               char hostname[28];
               char ipaddress[16];
               char mask[16];
               char gateway[16];
#else
       float mousespeed;
       unsigned char x[76]; // 229 bytes
#endif

               /* Miscellaneous pins and settings */
               unsigned short GPSBaudx;
               unsigned char GPSRX;
               unsigned char GPSTX;
               unsigned char heartbeatpin;
               unsigned char PSRAM_CS_PIN;
               unsigned char BGR;
               unsigned char NoScroll;
               unsigned char CombinedCS;
               unsigned char USBKeyboard;
               unsigned char VGA_HSYNC;
               unsigned char VGA_BLUE; // 236 bytes

               /* Additional audio pins */
               unsigned char AUDIO_MISO_PIN;
               unsigned char AUDIO_DCS_PIN;
               unsigned char AUDIO_DREQ_PIN;
               unsigned char AUDIO_RESET_PIN;

               /* SSD display pins */
               unsigned char SSD_DC;
               unsigned char SSD_WR;
               unsigned char SSD_RD;
               signed char SSD_RESET; // 244 bytes

               /* Display and reset settings */
               unsigned char BackLightLevel;
               unsigned char NoReset;
               unsigned char AllPins;
               unsigned char modbuff; // 248 bytes

               /* Keyboard repeat settings */
               short RepeatStart;
               short RepeatRate;
               int modbuffsize; // 256 bytes

               /* Function keys and network credentials */
               unsigned char F1key[MAXKEYLEN];
               unsigned char F5key[MAXKEYLEN];
               unsigned char F6key[MAXKEYLEN];
               unsigned char F7key[MAXKEYLEN];
               unsigned char F8key[MAXKEYLEN];
               unsigned char F9key[MAXKEYLEN];
               unsigned char SSID[MAXKEYLEN];
               unsigned char PASSWORD[MAXKEYLEN]; // 768 bytes

               /* Platform identification and extensions */
               unsigned char platform[32];
               uint8_t BACKLIGHT_KBD;           // *EB*
               uint8_t BACKLIGHT_LCD;           // *EB*
               uint16_t D4;                     // *EB*
               unsigned int GPSBaud;            // *EB*
               unsigned char pins[8];           // General use storage for CFunctions
               unsigned char wifi_country_code; //
                                                // #if defined(GUICONTROLS) && defined(PICOMITEVGA)
               /* On mouse-GUI VGA/HDMI builds MaxCtrls rides at the
                  front of extensions[] because the offset-88 slot is
                  kept for the HDMI lane mapping (see above). Total
                  region size stays 79 bytes so the surrounding flash
                  layout (and the 7-XMODEM-block size) is unchanged. */
               uint8_t MaxCtrls;
               uint8_t Resolution;
               uint8_t VRes_reserved;
               bool Multi;
#ifdef PICOMITEHDMIWEB
               /* HDMIWEB defines BOTH PICOMITEWEB and PICOMITEVGA, which were
                  previously mutually exclusive. Two slots near the top of the
                  struct that used to overlay each other now coexist, costing
                  +4 bytes: TCP_PORT/ServerResponceTime (PICOMITEWEB) and
                  X_TILE/Y_TILE (PICOMITEVGA). HDMIWEB also needs mousespeed
                  (+4, USB mouse + GUICONTROLS — the plain WebMite stores it in
                  the network-overlay region HDMIWEB uses for real WiFi config).
                  Both costs are reclaimed from the extensions[] spare pool:
                  mousespeed(4) + extensions[67] = 71, i.e. 4 fewer than the
                  normal extensions[75], so the whole struct stays exactly 896
                  bytes (== 7 XMODEM blocks). */
               float mousespeed;
               unsigned char extensions[67];
#else
               unsigned char extensions[75]; // 896 bytes == 7 XMODEM blocks
#endif
                                             // #else
                                             //                 unsigned char extensions[79];    // 896 bytes == 7 XMODEM blocks
                                             // #endif

#if defined(PICOMITEBT) || defined(PICOMITEBTH) || defined(PICOMITEHDMIBTH)
               /* BLE bond storage. Two virtual flash banks of 1 KB each
                  backing the btstack TLV — keeps the LTK alive across
                  reboots by riding along with SaveOptions(). Living
                  inside Option means MMBasic's flash layout treats it
                  as part of the protected 4 KB options sector and
                  won't ever overwrite it. PICOMITEBTH / HDMIBTH store
                  bonded-keyboard LTKs in the same field. */
               unsigned char bt_tlv[2048];
#endif

               /* NOTE: To enable older CFunctions to run, any new options MUST be added at the end of the list */
       } __attribute__((packed));

> [?7hoption list
PicoMite MMBasic RP2350A V6.03.00RC24
OPTION FLASH SIZE 4194304
OPTION COLOURCODE ON
OPTION CPUSPEED (KHz) 200000
> [?7h

> [?7hoption list
PicoMite MMBasic RP2350A V6.03.00RC24
OPTION LCD SPI GP10,GP11,GP12
OPTION SYSTEM I2C GP6,GP7, SLOW
OPTION FLASH SIZE 4194304
OPTION COLOURCODE ON
OPTION DEFAULT COLOURS GREEN, BLACK
OPTION KEYBOARD PICOCALC
OPTION CPUSPEED (KHz) 252000
OPTION LCDPANEL CONSOLE ,, FF00
OPTION DISPLAY 26, 40
OPTION LCDPANEL ST7365P, PORTRAIT,GP14,GP15,GP13
OPTION BACKLIGHT LCD 30
OPTION SDCARD GP17, GP18, GP19, GP16
OPTION AUDIO GP26,GP27', ON PWM CHANNEL 5
OPTION MODBUFF ENABLE  192
OPTION PLATFORM PicoCalc
> [?7h