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JMP
Operation:
0xxx
PC
ea
PC
Description: Jump to the location in program memory given by the instruction's effective
address. All memory alterable addressing modes may be used for the effective address.
A Fast Short Jump addressing mode may also be used. The 12-bit data is zero extended
to form the effective address.
Restrictions: A JMP instruction used within a DO loop cannot begin at the address LA
within that DO loop.
A JMP instruction cannot be repeated using the REP instruction.
Example:
:
JMP (R1+N1)
:
Explanation of Example: In this example, program execution is transferred to the pro-
gram address P:(R1+N1).
Condition Codes:
15
14
13
LF
DM
The condition codes are not affected by this instruction.
Instruction Format:
JMP xxx
Opcode:
23
0
0
0
0
A - 116
INSTRUCTION DESCRIPTIONS
Jump
;jump to program address P:(R1+N1)
12
11
10
9
T
**
S1
S0
I1
MR
16 15
1
1
0
0
0
0
0
INSTRUCTION SET DETAILS
Assembler Syntax:
JMP xxx
JMP ea
8
7
6
5
4
I0
S
L
E
U
CCR
8
7
0
a
a
a
a
a
JMP
3
2
1
0
N
Z
V
C
0
a
a
a
a
a
a
a
MOTOROLA
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