Intel 8XC251SQ User Manual
8XC251SA, SB, SP, SQ USER’S MANUAL
A-8
Table A-12. PUSH/POP Instructions
Instruction
Byte 0(x)
Byte 1
Byte 2
Byte 3
PUSH #data
C
A
0000
0010
#data
PUSH #data16
C
A
0000
0110
#data16 (high)
#data16 (low)
PUSH Rm
C
A
m
1000
PUSH WRj
C
A
j/2
1001
PUSH DRk
C
A
k/4
1011
MOV DRk,PC
C
A
k/4
0001
POP Rm
D
A
m
1000
POP WRj
D
A
j/2
1001
POP DRk
D
A
k/4
1011
Table A-13. Control Instructions
Instruction
Byte 0(
x
)
Byte 1
Byte 2
Byte 3
EJMP addr24
8
A
addr[23:16]
addr[15:8]
addr[7:0]
ECALL addr24
9
A
addr[23:16]
addr[15:8]
addr[7:0]
LJMP @WRj
8
9
j/2
0100
LCALL @WRj
9
9
j/2
0100
EJMP @DRk
8
9
k/4
1000
ECALL @DRk
9
9
k/4
1000
ERET
A
A
JE rel
8
8
rel
JNE rel
7
8
rel
JLE rel
2
8
rel
JG rel
3
8
rel
JSL rel
4
8
rel
JSGE rel
5
8
rel
JSLE rel
0
8
rel
JSG rel
1
8
rel
TRAP
B
9