Micro 6502 - Issue 61 - June 1983

• Apple II Operating System - A look at the features offered by six popular systems
• UCSD Directory - A description of UCSD at the byte and bit level
• OS-9, A Structured Operating System - One of the most powerful systems for 8-bit microprocessors
• Color Disk BASIC: Observations and Utilities - Examine disk sectors and repair a crashed directory
• The 68000 Educational Computer Board - Motorola's board features 32k of RAM and a terminal-based ROM monitor
• Pinewood Derby with Computer Timing - An automated judging and timing program for this popular Cub Scout model race
• Four-Color Hi-Res Graphics for the VIC-20 - Use the joystick to draw four-color pictures
• VIC Player - Learn music with this five-octave keyboard program
• An Inexpensive Lightpen for the VIC-20, C64 and Atari
• 68000 Addressing Modes - Immediate, direct, implied, and indirect addressing
• HEXPAD: PET Utility for Machine-Language Key-Ins - Redesign your PET calculator keyboard
• Parameter Passing in Assembly Language, Part 2 - Passing parameters via the Return Address
• PET Vet - A review of the Script 64 and WordPro 3 Plus/64 wordprocessors