Fujitsu CM71-00101-5E User Manual
99
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.22
EOR (Exclusive Or Word Data of Source Register to
Destination Register)
Destination Register)
Takes the logical exclusive OR of the word data in "Ri" and the word data in "Rj", stores
the results to "Ri".
the results to "Ri".
■
EOR (Exclusive Or Word Data of Source Register to Destination Register)
Assembler format:
EOR Rj, Ri
Operation:
Ri eor Rj
→
(Ri)
Flag change:
N:
Set when the MSB of the operation result is "1", cleared when the MSB is "0".
Z:
Set when the operation result is "0", cleared otherwise.
V and C: Unchanged
Execution cycles:
1 cycle
Instruction format:
Example:
EOR R2, R3
N
Z
V
C
C
C
–
–
MSB
LSB
1
0
0
1
1
0
1
0
Rj
Ri
R2
R3
1 1 1 1
0 0 0 0
1 0 1 0
1 0 1 0
N Z V C
CCR
R2
R3
CCR
0 0 0 0
N Z V C
0 0 0 0
0 1 0 1
1 0 1 0
1 1 1 1
0 0 0 0
Before execution
After execution
Instruction bit pattern : 1001 1010 0010 0011