ASTRO VG-871 - CHASQRE4 [28 H 23 H]: Character Plane Square Drawing

300
3.4 CHASQRE4 [28H 23H]: Character plane square
drawing
Function: This command draws a square on the character plane.
Sequence: Type 2
Command:
STX
1 byte
02H
VG4CMD
1 byte
FDH
CHASQRE4
2 bytes
28H 23H
Top left coordinate X
1 to 4 bytes
“0” to “4095”
,
1 byte
2CH (Delimiter)
Top left coordinate Y
1 to 4 bytes
“0” to “4095”
,
1 byte
2CH (Delimiter)
Bottom right
coordinate X
1 to 4 bytes
“0” to “4095”
,
1 byte
2CH (Delimiter)
Bottom right
coordinate Y
1 to 4 bytes
“0” to “4095”
,
1 byte
2CH (Delimiter)
Drawing mode
1 byte
“0” = Clear, “1” = Set
ETX
1 byte
03H
Fig. 3-4-1
When the drawing mode setting is omitted as below, the dot is drawn in the Set mode.
STX
1 byte
02H
VG4CMD
1 byte
FDH
CHASQRE4
2 bytes
28H 23H
Top left coordinate X
1 to 4 bytes
“0” to “4095”
,
1 byte
2CH (Delimiter)
Top left coordinate Y
1 to 4 bytes
“0” to “4095”
,
1 byte
2CH (Delimiter)
Bottom right
coordinate X
1 to 4 bytes
“0” to “4095”
,
1 byte
2CH (Delimiter)
Bottom right
coordinate Y
1 to 4 bytes
“0” to “4095”
ETX
1 byte
03H
Fig. 3-4-2