GCBASIC documentation
String Manipulation

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Deprecated string functions.

Hex
Str
Val

Use the alternative updated functions.

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Introducing GCBASIC
Using GCBASIC
PIC users and Beginners: Start Here
Changes
Command Line Parameters
Frequent errors
A Glossary
Frequently Asked Questions
Troubleshooting
Compiler Insights
Libraries Overview
Acknowledgements
Tricks and Tips
- UNO as ISP programmer
Microcontroller Fundamentals
- Inputs/Outputs
- Configuration
- USB Drivers Installer
Variables
- Data Types
- Variable Types
- Advanced VariableTypes
- Variable Memory Allocation
Syntax
- Arrays
- Comments
- Line Continuation
- Conditions
- Constants
- Functions
- Labels
- Lookup Tables
- Miscellaneous
- ReadTable
- Scripts
- Subroutines
- Converters
Command References
- Analog/Digital conversion
  - Analog/Digital Conversion Overview
  - ADFormat (Deprecated - Do not use)
  - ADOff
  - ReadAD
  - ReadAD10
  - ReadAD12
  - Analog/Digital Conversion Code Optimisation
- Bitwise
  - Bitwise Operations Overview
  - FnLSL
  - FnLSR
  - SetWith
- Memory
  - MCU EEPROM ( DFM )
  - HEFM ( PFM )
  - PROGMEM ( PFM )
    - PFMRead
    - PFMWrite
    - DATA
    - ProgramErase
    - ProgramRead
    - ProgramWrite
  - PROGMEM ( MCU Configuration )
    - DeviceConfigurationRead
  - SAFM
  - EERAM ( Device )
    - 47xxx EERam Devices
  - SRAM ( Device )
- Flow control
  - Do
  - End
  - Exit
  - For
  - Gosub
  - Goto
  - If
  - IndCall
  - Pause
  - Repeat
  - Select
  - Wait
- Fixed Voltage Reference
  - FVRInitialize
  - FVRIsOutputReady
- Interrupts
  - Interrupts overview
  - IntOff
  - IntOn
  - On Interrupt
  - On Interrupt: The default handler
- Keypad
  - Keypad Overview
  - KeypadData
  - KeypadRaw
- Graphical LCD
  - GLCD Overview
    - Fonts and Characters
    - e-Paper Controllers
    - HX8347G Controllers
    - ILI9326 Controllers
    - ILI9340 Controllers
    - ILI9341 Controllers
    - ILI9481 Controllers
    - ILI9486(L) Controllers
    - ILI9488 Controllers
    - KS0108 Controllers
    - NEXTION Controllers
    - NT7108C Controllers
    - PCD8544 Controllers
    - SDD1289 Controllers
    - SH1106 Controllers
    - SSD1306 Controllers
    - SSD1331 Controllers
    - SSD1351 Controllers
    - ST7567 Controllers
    - ST7735 Controllers
    - ST7789 Controllers
    - ST7920 Controllers
      - ST7920GLCDClearGraphics
      - ST7920GLCDDisableGraphics
      - ST7920GLCDEnableGraphics
      - ST7920GraphicTest
      - ST7920LineHs
      - ST7920Locate
      - ST7920Tile
      - ST7920cTile
      - ST7920gLocate
      - ST7920gTile
      - ST7920lineh
      - ST7920linev
      - ST7920GLCDReadByte
      - ST7920WriteByte
      - ST7920WriteCommand
      - ST7920WriteData
      - ST7920gReaddata
    - T6963 Controllers
    - UC1601 Controllers
  - Box
  - Circle
  - Ellipse
  - FilledBox
  - FilledCircle
  - FilledEllipse
  - FilledTriangle
  - GLCDCLS
  - GLCDDisplay
  - GLCDDrawChar
  - GLCDDrawString
  - GLCDPrint
  - GLCDPrintLargeFont
  - GLCDPrintWithSize
  - GLCDLocateString
  - GLCDPrintString
  - GLCDPrintStringLn
  - GLCDRotate
  - GLCDReadByte
  - GLCDTimeDelay
  - GLCDTransaction
  - GLCDWriteByte
  - Line
  - Hyperbole
  - Parabola
  - Pset
  - Triangle
- Touch Screen
  - ADS 7843 Serial Driver
- Liquid Crystal Display
  - LCD Overview
  - CLS
  - Get
  - LCDBacklight
  - LCDCreateChar
  - LCDCreateGraph
  - LCDCmd
  - LCDCursor
  - LCDHex
  - LCDHome
  - LCDDisplayOn
  - LCDDisplayOff
  - LCDSpace
  - LCDWriteChar
  - Locate
  - Print
  - Put
  - Examples
- Pulse width modulation
  - Microchip PIC PWM Overview
  - ATMEL AVR PWM Overview
    - HPWM AVR OCRnx
    - HPWM Fixed Mode for AVR
      - PWMOn for AVR
      - PWMOff for AVR
- Random Numbers
  - Overview
  - Random
  - Randomize
- 7-Segment Displays
  - 7 Segment Displays Overview
- One Wire Devices
  - DS18B20
  - ReadDigitalTemp
  - ReadTemp
  - ReadTemp12
  - DS18B20SetResolution
- Serial Communications
  - RS232 (software)
  - RS232 (software optimised)
  - RS232 (hardware)
- PS/2
  - PS/2 Overview
  - InKey
  - PS2SetKBLeds
  - PS2ReadByte
  - PS2WriteByte
- SPI
  - SPI Overview
  - SPIMode
  - SPITransfer
  - FastHWSPITransfer
- I2C Software
  - I2C Overview
  - I2CAckPollState
  - I2CAckpoll
  - I2CReceive
  - I2CReset
  - I2CRestart
  - I2CSend
  - I2CStart
  - I2CStartoccurred
  - I2CStop
- I2C/TWI Hardware Module
  - HI2C Overview
  - HI2CAckPollState
  - HI2CReceive
  - HI2CRestart
  - HI2CStart
  - HI2CStartOccurred
  - HI2CMode
  - HI2CSetAddress
  - HI2CStop
  - HI2CStopped
  - HI2CWaitMSSP
- Sound
  - Sound Overview
  - Tone
  - ShortTone
  - Play
  - Play RTTTL
- Timers
  - Timer Overview
  - ClearTimer
  - InitTimer0
    - InitTimer0 8bit/16bit
  - InitTimer1
  - InitTimer2
  - InitTimer3
  - InitTimer4
  - InitTimer5
  - InitTimer6
  - InitTimer7
  - InitTimer8
  - InitTimer10
  - InitTimer12
  - Settimer
  - StartTimer
  - StopTimer
  - Reading Timers
  - SMT Timers
- Variables Operations
  - Using Variables
  - More on setting Variables and Constants
  - Setting Variables
  - Variable Lifecycle
  - Dim
  - Alloc
  - BcdToDec_GCB
  - DecToBcd_GCB
  - Rotate
  - Set
  - SWAP4
  - SWAP
- String Manipulation
  - Asc
  - ByteToBin
  - ByteToHex
  - ByteToString
  - Chr
  - Fill
  - IntegerToBin
  - IntegerToHex
  - IntegerToString
  - Instr
  - LCase
  - Left
  - LeftPad
  - Len
  - LongToBin
  - LongToHex
  - LongToString
  - Ltrim
  - Mid
  - Pad
  - Right
  - Rtrim
  - Trim
  - UCase
  - SingleToBin
  - SingleToHex
  - SingleToString
  - StringToByte
  - StringToLong
  - StringToSingle
  - StringToWord
  - ULongIntToBin
  - WordToBin
  - WordToHex
  - WordToString
  - Concatenation
  - Deprecated string functions.
    - Hex
    - Str
    - Val
- Miscellaneous Commands
  - Dir
  - GetUserID
  - Pot
  - PulseOut
  - PulseOutInv
  - PulseIn
  - PulseInInv
  - Peek
  - Poke
  - Weak Pullups
- Maths
  - Abs
  - Average
  - Difference
  - Int
  - Logarithms
    - Log2
    - Loge
    - Log10
  - Power
  - RoundSingle
  - Scale
  - Sqrt
  - Trigonometry Sine, Cosine and Tangent
  - Trigonometry ATAN
- Peripheral Pin Select
  - Peripheral Pin Select for Microchip microcontrollers.
  - UnLockPPS
  - LockPPS
Compiler Directives
- #asmraw
- #chip
- #config
- #DEFINE
- #UNDEFINE
- #if
- #ifnot
- #ifdef
- #ifndef
- #include
- #insert
- #script
- #startup
- #mem
- Other directives
Compiler Options
- #Option Explicit
- #Option NoConfig
- #Option Bootloader
- #Option NoContextSave
- #Option NoLatch
- #Option Required
- #Option Volatile
- #Option ReserveHighProg
Using Assembler
- Assembler Overview
Macros
- Macros Overview
- Example Macros
  - Measuring a Pulse Width
  - Implementing a method with a Pin name as a parameter
Example Programs
- Flashing LEDs and an Interrupt
- Flashing LED with timing parameters
- Generate Accurate Pulses
- Graphical LCD Demonstration
- InfraRed Remote
  - SonyRemote.h
- Midpoint Circle Algorithm
- I2C Master Hardware
- I2C Slave Hardware
- RGB LED Control
- Serial/RS232 Buffer Ring
- Trigonometry Circle
Graphical GCBASIC
- Code Documentation
- Windows .NET Support
GCBASIC for Linux
- Overview - Linux Operating System
- Make ASM, Make HEX and Programming Operations using the provided Linux scripts
GCBASIC for ARM & Pi
- Overview - Raspberry Pi
GCBASIC for Apple macOS
- Overview - Apple macOS GCBASIC
GCBASIC for FreeBSD
- Overview - FreeBSD GCBASIC
GCBASIC Maintenance and Development
- GCBASIC Maintenance
- Development Guide
- Development Guide for GCBASIC.EXE compiler
- ABOUT GLCD Library Support
- Development Guide for GCBASIC Preferences Editor
GCBASIC with the AVRISP or MKII Programmer
- Setup an AVRISP MKII or USBtinyISP for ATTINY10 chip under Windows

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