Plug In, Switch On... And Then Hang on to Your Hats, For This Is the Accelerator

Article Abstract:

The Accelerator 2 is a plug-in board for the Apple II which triples the speed of programs run in Applesoft. It has 64K memory and its own 6502 processor. The board was introduced for the Apple 2 in the United Kingdom in April of 1983. 1,000 have been sold in the United Kingdom as of August 1983. A picture of the Accelerator and how it was tested is provided. The Accelerator 2 is a great time and money saver for businessmen plus an all around delight for Apple 2 users.

Evaluation, Product/Service Evaluation, Personal Computers, England, Wales, Add-In/On Devices, Ireland, Scotland, Special-Purpose Adapter/Controller, Expansion boards, Accelerator 2 (circuit board), Apple II

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Zero in on Page Conflicts

Article Abstract:

A problem with writing fast machine language routines on the Apple is the lack of available zero page memory. A solution is to copy the zero page to another memory space and back again after the routine is finished. Assembly routines can be used to check stack space and move data back and forth. Fragments of machine language routines illustrate this.

Memory, Memory management, Programming Instruction, Fragmentation, Paging, Subroutines, Swapping, Storage Allocation, Storage management (Computer disks)

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Think Tank - Get Help While on the Run

Article Abstract:

Since the 16K language card is not usually available to Applesoft programs it is a good idea to use it to hold information screens. A program, written in Assembler, is given to store help information screens on the 16K card. A sample of the hex dump of the help program and part of a program implementing the help program are illustrated.

Software, Hardware, Performance improvement (Computers), Systems software, Performance Improvement, User-Written Software, Language Cards, Dumps

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