ASTRO VG-871 - GLINE [19 H]: Straight Line Drawing; CLINE [13 H]: Straight Line Clearing

Chapter 5 INDIVIDUAL DRAWING COMMAND FORMATS
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5.3 GLINE [19H]: Straight line drawing /
CLINE [13H]: Straight line clearing
5.3.1 GLINE [19H]: Straight line drawing
Function: This command draws a straight line on the graphic plane (1-bit plane).
The start and end point coordinates are set by the parameters.
Sequence: Type 2
Command:
STX
1 byte
02H
GLINE, CLINE
1 byte
19H, 13H
Start point coordinate X
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
Start point coordinate Y
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
End point coordinate X 1
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
End point coordinate Y 1
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
ETX
1 byte
03H
Fig. 5-3-1
* Sign codes are provided.