Dave,

Actually, I haven't finished that offsite column yet. The advantage of using Excel spreadsheets for table-driven solutions is that you can let Excel calculate in high precision floating point algorithms and then merely format the results down to the display quality you need. I show this in the Excel tables appended to the bottom of the offsite column.

I'll write more about the table method there including an important aspect - DO NOT RETYPE TABLES INTO ASSEMBLY CODE.

Too much tedious work and opportunity for error. Instead, I use the Microsoft Excel formating functions to accumulate the text in assembly language form and then cut and paste the whole block in one operation.

For example, the offsite article will show how I turn my column of table-driven solutions into DB instructions with BCD packing of data (two display characters per byte). At 256 inputs and 2 bytes to store 4 numbers and decimal point each, that's only 512 bytes of table storage.

Its worth a lot learning how to use a spreadsheet in embedded controls.

aka j