GDD Initial Graphics Defaults Self Describing Instructions
Offset Range Meaning
Error
Code
0 X'21' SET CURRENT DEFAULTS X'0300..2
1'
1 X'04'-X'FF' LENGTH of Data X'0300..0
3'
2 SET Byte X'0300..0
2'
X'00' Drawing Attributes
X'01' Line Attributes
X'02' Character Attributes
X'03' Marker Attributes
X'04' Pattern Attributes
X'0B' Arc Parameters
3-4 MASK Bytes. See "Graphics Drawing Order Defaults and
Masks"
X'0300..0
3'
5 DEFAULT Byte X'0300..0
2'
X'0300..0
3'
X'0F' Use Standard Default
X'8F' Use the following Data Bytes
6-n Data bytes X'0300..2
1'
• See page 156 "Begin Segment Introducer" (Drawing Orders) for valid drawing order
defaults.
5. Graphics Command Set
152
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