Home Control on a Budget
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Timex/Sinclair 1000
Tax Shelter Time Bomb
Calculate the point at which a tax shelter returns taxable income.
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Build Your Own Spreadsheet
Machine language program for creating and manipulating a moving “window” across data.
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Resources (Sync v2 n6)
Listing of new user groups, books and other resources.
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A Keyboard Learning Game
New users of the Timex/Sinclair computers sometimes spend a long time hunting for a specific key. The keys that are not used frequently remain hard to find. Keygame is intended to help the user become familiar with the keyboard and to have some fun while learning.
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Your Timex/Sinclair Can Become a Terminal
Build a 8251 USART interface to connect a Sinclair to a modem.
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WARP 81: Making a 4K Program Run in 8K
Details converting a specific program to work with 8K ROM Sinclairs.
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Large Letters for the 8K, 2K Machine
One tool that has been useful to me is a Basic subroutine to create 4×4 characters for the 8K ROM. The routine works well enough and enhances the display. However, it is slow. If used repeatedly, the delay can be irksome. The obvious solution is to write a machine language subroutine to do the work.
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