IBM RT Series Hardware Reference Manual page 375

TNL SN20-9844 (March 1987) to 75X0235
Type Graphic Operation Name and Queue Load Data Example
31 RECTANGULAR COPY/MERGE + 90 DEGREE ROTATE
Data Reg Parameter
5xxx R5 Xsource Ire
4xxx R4 Ysource Ire
Axxx RA Xdest Ire
7xxx R7 Ydest Ire
9xxx R9 DX+ 1
Oxxx RO DY+ 1
D31 s Execute command
32 RECTANGULAR COPY/MERGE -90 DEGREE ROTATE
Data Reg Parameter
4xxx R4 Xsource Ire
5xxx R5 Ysource Ire
7xxx R7 Xdest Ire
Axxx RA Y dest Ire
Oxxx RO DX+ 1
9xxx R9 DY+ 1
D32s Execute command
33 RECTANGULAR COPY/MERGE 180 DEGREES X AXIS SYMMETRY
Data Reg Parameter
5xxx R5 Xsource Ire
4xxx R4 Ysource Ire
7 xxx R 7 Xdest Ire
Axxx RA (Ydest-(DY + 1)-1) Ire
9xxx R9 DX+ 1
Oxxx RO DY+ 1
D33s Execute command
Extended Monochrome Graphics Adapter
63