IBM RT Series Hardware Reference Manual page 367

TNL SN20-9844 (March 1987) to 75X0235
TDDMA Cut/Paste From I/O Channel Memory 45 Degree Diag Flip (X'39')
This graphic operation performs in the same manner as graphic operation type X'37' except that
the destination is rotated 180 degrees about the 45 degree diagonal.
Note:
*
Notice the change in the queue load parameters.
Queue Load
Reg Function Value of Comment
Register
RA
*
A23-A17
Source high X'AOOO' Upper left start word address
RB
*
A16-A9 Source mid
X'B008' Upper left start word address
R4
*
A8-A1 Source low
X'4009' Upper left start word address
43 Bit offset
X'3004' Starting bit of the starting word
R2 Skip (16 bit words)
X'203D' Array width
=
X'080' bytes
R6 X destination X'600F' Lower right corner exclusive
R7 Y destination
X'700B' Lower right corner exclusive
RO
Delta X
+
1
X'OOlF'
R5
Delta Y
+
1
X'5003'
Execute Command X'D399'
Extended Monochrome Graphics Adapter 55