IBM RT Series Hardware Reference Manual page 378

TNL SN20-9844 (March 1987) to 75X0235
Type Graphic Operation Name and Queue Load Data Example
38 TDDMA CUT/PASTE FROM SYSTEM MEMORY + 90 DEGREE ROTATE
Data Reg Parameter
AOxx RA DMA addr HI(0-6)
BOxx RB DMA addr MI(7-14)
40xx R4 DMA addr LO(15-22)
3xxx R3 Bit offset
2xxx R2 Skip amount
7xxx R 7 Xdest Ire
6xxx R6 (Xdest-(DX + I)-I) Ire
5xxx R5 DX+ I
Oxxx RO 2's comp of (DX + 1)
D38s Execute command
39 TDDMA CUT/PASTE FROM SYSTEM MEMORY
45 DEGREES DIAGONAL FLIP
Data Reg Parameter
AOxx RA DMA addr HI(0-6)
BOxx RB DMA addr MI(7-14)
40xx R4 DMA addr LO(15-22)
3xxx R3 Bit offset
2xxx R2 Skip amount
7xxx R 7 Xdest Ire
6xxx R6 Xdest Ire
5xxx R5 DY+ 1
Oxxx RO DX+ 1
D39s Execute command
66 Exten_ded Monochrome Graphics Adapter