RCA 70/46 - Move Zones (MVZ)

Move Zones
(MVZ)
General Description
Format
(55)
Condition Code
Interrupt Action
Logical
Instructions
• The high-order four bits of each byte in the source operand specified by
the second address (B
2
/D
2
)
are placed into the high-order four bits of the
corresponding byte of the destination operand specified by the first address
(B1/D
1
) .
D3
L
o
7 8
15 16 19 20
31 32 35 36 47
• Unchanged.
• Address error:
Addressing.
Protection.
Notes • 1. The zones are not changed or checked for validity.
2. The operand specified by
the second address is not altered, unless
operands overlap.
3. Processing is
from left to right.
4. The low-order four bits of the source and destination operand bytes
are not altered.
5. The operand fields may overlap in any way and may be variable
in length.
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