IBM RT Series Hardware Reference Manual page 373

TNL SN20-9844 (March 1987) to 75X0235
Graphic Operation Queue Load Format Table
Definitions of symbols used in this table are:
• xxx = 10 bit hex data (max value = X'3FF' = 1023)
• Oxx
=
8 bit hex data (max value
=
X'OFF
=
255)
• s
=
subtype
• Ire
=
lower right exclusive point
• Xl, Y 1 represent the start point coordinates of a line or the upper left corner point of a
rectangle.
• X2, Y2 represent the end point coordinates of a line or the lower right corner point of a
rectangle.
• DX, DY represent (X2-Xl) and (Y2-Yl) respectively.
Type Graphic Operation Name and Queue Load Data Example
2C RELATIVE DRAW WITH ENDING NULL
Data Reg Parameter
1 xxx R1 Xl
Oxxx RO Y1
5xxx R5 DX
6xxx R6 DY
D2Cs Execute command
2D RELATIVE DRAW
Data Reg Parameter
1xxx R1 Xl
Oxxx RO Y1
5xxx R5 DX
6xxx R6 DY
D2Ds Execute command
Extended Monochrome Graphics Adapter 61