Heathkit H-100 Function Libraries in DeSmet C

In addition to the functions on this page, the site has a number of Borland C++ functions. Some of them began as DeSmet C and might be converted back to it without too much difficulty.

PSET: Color Graphics Primitive Functions

Color graphics primitives for pixel manipulation, in .C and .A (optimized assembler). pset(): get pixel color, set pixel color, using OR, XOR, and other options.

 

Graphics: Color Graphics Drawing Functions

Drawing functions: line(), box(), circle().

 

Paint (Flood Fill) Function

Paints an enclosed graphic area with specified color or combination of colors, using regular or random tiling, within a specified border color or to edge of screen.

 

ZEDSAVE: Graphics (Bitmap) Save/Load Functions

Fast routines to save color screen display to a disk file, and load back in.

 

Multipage Video Management Functions

The H100 has 2 video pages! You can independently choose which page video writes go to and which page is displayed.

 

Display Management Functions

Display management functions, using the H19/H89/H100 terminal escape codes.

 

Procedural Utility Functions

abort()

 

Random Number Functions

Two random number related functions, one a bug fix for DeSmet C.

 

Input Functions

contin() asks "Do you want to continue?", presskey() says "Press any key to continue...", two input functions allow for a default value if user just presses CR, and a function that emulates the BASIC function INPUT #1, A$.

 

String Search Function

A string search function that emulates the BASICA INSTR function.

 

Date and Time Routines

Miscellaneous date and time routines.