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OR
7-129
Assembly Language Instructions
Syntax OR
dma
Direct addressing
OR
ind
[, AR
n
] Indirect addressing
OR #
lk
[,
shift
] Long immediate addressing
OR #
lk,
16 Long immediate with left
shift of 16
Operands dma: 7 LSBs of the data-memory address
shift: Left shift value from 0 to 15 (defaults to 0)
n: Value from 0 to 7 designating the next auxiliary register
lk: 16-bit long immediate value
ind: Select one of the following seven options:
* *+ *– *0+ *0– *BR0+ *BR0–
OR
dma
1514131211109876543210
0
11011010 dma
OR
ind
[, AR
n
]
1514131211109876543210
0
11011011 ARU N NAR
Note: ARU, N, and NAR are defined in Section 6.3,
Indirect Addressing Mode
(page 6-9).
OR #
lk
[,
shift
]
1514131211109876543210
1
01111111100 shift
lk
OR #
lk
[
,
16]
1514131211109876543210
1
011111010000010
lk
Execution Increment PC, then ...
Event(s) Addressing mode
(ACC(15:0)) OR (data-memory address) → ACC(15:0) Direct or indirect
(ACC(31:16)) → ACC(31:16)
(ACC) OR lk 2
shift
→ ACC Long immediate
(ACC) OR lk 2
16
→ ACC Long immediate
with left shift of 16
Opcode