RCA 70/46 - Store (STE) (STD)

Store
(STE) (STD)
General Description
Format
(RX
Short)
(RX Long)
Condition Code
Interrupt
Action
Floating-Point Instructions
• The contents of the floating-point register specified by the first address
(R
1
)
are stored in the main memory location specified by the second
address (X
2
/B
2
/D
2
).
(STE) 70
Rl
X
2
B2 D2
0
7
8 11 12
15 16
19 20
31
(STD) 60
Rl
X
2
B2
D2
0
7
8
11 12
15
16
19
20
31
•
Unchanged.
•
Address error:
Addressing.
Specification.
Protection.
Notes • 1. The first operand is unaltered.
2.
Short operands do not alter the low-order half of the register specified
by the second address.
217