Samsung S5PC100 User Manual page 1315

3D-ACCELERATOR
9.2.6 Logical Operation Control Register (PF_LOGOP, R/W, Address = 0X0007_0020)
This register supports binary bitwise logic operation between source and destination.
PF_LOGOP
Reserved
AlphaLogOpEnable
ColorLogOpEnable
LogOpEnable
9.6-88
Bit
[31:9] Reserved
[8:5] Mode used in Logical Operation
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
[4:1] Mode used in color logical operation. Same as above.
[0] 0b = color logical operation disabled
1b = color logical operation enabled
Description
Argument value
CLEAR
AND
AND_REVERSE
COPY
AND_INVERTED
NOOP
XOR
OR
NOR
EQUIV
INVERT
OR_REVERSE
COPY_INVERTED
OR_INVERTED
NAND
SET
S5PC100 USER'S MANUAL (REV1.0)
Operation
0
s & d
s & ~d
s
~s & d
d
s xor d
s | d
~(s | d)
~(s xor d)
~d
s | ~d
~s
~s | d
~(s & d)
all 1's
Reset Value
0
0x0
0x0
0b