A fast and easily customised operating system
for ARM devices
VDU 24
Programmer's Reference Manuals
» Tables
» VDU Codes
» VDU 24
VDU 24 (&18)
Use
Enables definition of graphics window, i.e. area of screen inside which graphics can be drawn with the DRAW and PLOT statements.
Syntax
VDU 24,lx;by;rx;ty;
Parameters
| lx | Left X |
| by | Bottom Y |
| rx | Right X |
| ty | Top Y |
Notes
Four coordinates given as two bytes each. Use of semi-colon punctuation sends number as two-byte pair: lo followed by hi.