RCA Spectra 70 - Page 141

Load Negative
(LNR)
General Description
Format
(RR)
Condition Code
Interrupt
Action
Notes
Fixed-Point
I nst1'Uctions
• The two's complement of the operand in the register specified by the
second address (R
2
)
is loaded into the general register specified by the
first address (R
1
). In loading the operand value, positive numbers are
complemented and negative numbers remain unaltered. The magnitude of
the loaded value determines the condition code setting.
o 7 8 11 12 15
• 0 - result is zero.
1 -
result is less than zero.
2
-not used.
3-not used .
• None.
• 1. A zero operand is not altered and retains a positive sign.
2. The
operand specified by the second address is unaltered.
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