Hi all!
Here is a little piece. The original ,15 years old, is in QBasic. And now ... well... look like that

The program implement methods from Part 630 Hidrology of National Engineering Handbook, Natural Resources Conservation Service, USDA. The result is in a text file.
There is abundance of macros:
- BASIC instructions
- write??? --> to file
- p??? ---> print to console
- array of variables
- array of structures
- procedures that work like functions under SmplMath
Source is assembled with "AsmC -Znk"