ASTRO VG-871 - GSQRE [D0 H]: Square Drawing; CSQRE [D1 H]: Square Clearing

Chapter 5 INDIVIDUAL DRAWING COMMAND FORMATS
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5.9 GSQRE [D0H]: Square drawing /
CSQRE [D1H]: Square clearing
5.9.1 GSQRE [D0H] Square drawing
Function: This command draws a square on the graphic plane.
The start and end point coordinates are set by the parameters.
Sequence: Type 2
Command:
STX
1 byte
02H
GSQRE, CSQRE
1 byte
D1H
Top left coordinate X
1 to 4 bytes
“0” to “4095”
Data delimiter
1 byte
“, “
Top left coordinate Y
1 to 4 bytes
“0” to “4095”
Data delimiter
1 byte
“, “
Bottom right
coordinate X 1
1 to 4 bytes
“0” to “4095”
Data delimiter
1 byte
“, “
Bottom right
coordinate Y 1
1 to 4 bytes
“0” to “4095”
ETX
1 byte
03H
Fig. 5-9-1
* X < X1, Y < Y1