ASTRO VG-871 - GRALINE4 [28 H 42 H]:Graphicplane Straight Line Drawing

Chapter 4 INDIVIDUAL FORMATS FOR CONTROL COMMANDS
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3.17 GRALINE4 [28H 42H]:GraphicPlane Straight Line
Drawing
Function ： This command draw straight line on the graphic plane
Sequence ： Type 2
Command ：
STX
1 BYTE
02H
VG4CMD
1 BYTE
FDH
GRALINE4
2 BYTE
28H 42H
Top left coordinate X
2- 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical terms
,
1 BYTE
2CH（Delimiter）
Top left coordinate Y
2- 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical terms
,
1 BYTE
2CH（Delimiter）
Bottom right coordinate X
2- 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical terms
,
1 BYTE
2CH（Delimiter）
Bottom right coordinate Y
2- 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical terms
,
1 BYTE
2CH（Delimiter）
Color
1- 3 BYTE
"0" to "255" *Note
ETX
1 BYTE
03H
Fig 3-17-1
Note : by executing “GRAPAL4 [28H 4EH] Graphic Palette Mode”, it can set in a range of 0 to
4095.
PC
VG
STX～ETX
ACK or STX + ESTS + Error
code +ETX