
VIC20 Exposed
Description
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Content
- Cover
- Contents
- Front Matter
- Publisher Information
- VIC 20 Exposed
- Chapter 1
- Programming in Basic
- Immediate and Program Modes
- Control Structures
- Data Structures
- Bits and Bytes
- Characters
- Variables
- Arrays
- Operators
- Arithmetic Operators
- String Operators
- Relational Operators
- Binary and Hexidecimal Number Systems
- Masks
- Table of Operator Procedences
- Chapter 2
- VIC20 BASIC commands
- Chapter 3
- Advanced BASIC techniques
- Compressing BASIC Programs
- Abbreviations for BASIC keywords
- Appending BASIC Programs
- BASIC Program Storage format
- VIC20 BASIC Keyword codes
- Clearing the Keyboard Buffer
- Routines Using the Keyboard Buffer
- Merge Routine
- Chapter 4
- Graphics
- Graphics Memory
- Low Resolution Graphics
- Screen Background and Border Colours
- Character Colour
- Multicolour Mode
- Screen Memory
- Character Memory
- The Character Table
- Designing your own Characters
- Accessing both Custom and Built-in Character Sets
- Where to put the New Character Set
- High Resolution Graphics
- Multicolour Characters
- Chapter 5
- Sound
- Tone Registers
- Attack and Decay of Notes
- Saving and Loading Music
- Noise Register
- Chapter 6
- External Devices
- Datasette
- Floppy Disk Drives
- 1515 Graphics Printer
- Chapter 7
- Games Controls
- Keyboard
- Joystick
- Paddles
- Chapter 8
- Hardware
- Inside the VIC20
- The microprocessory
- The Video Interface Chip
- The Video RAM
- The Colour RAM
- The Internal Registers of the VIC
- Chapter 9
- Machine Language Programming
- The Case for Machine Language
- Inputting, Saving, and Loading Machine Language Programs
- Programming in Machine Language
- Registers
- Addressing Modes
- The 6502 Instruction Set
- Interrupt driven Subroutines
- Examples and Handy Routines
- Back Matter
- Appendices
- A: CHR$ Value Codes/Screen Codes/ASCII Codes
- B: Complete Memory Map
- C: Keyboard Graphics and how to get them
- D: Useful ROM Routines (KERNAL)
- E: Background/Border Colour Codes
- F: Memory Allocation
- G: Basic Error Messages
- H: Current Key Pressed
- I: Basic Routines available from M/C
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