RCA Spectra 70 User Manual

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Priority No.
31
32
Condition
Fixed-Point Overflow
Test Mode
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Table 9. Interrupt Conditions (Cont'd)
Flag Bit Explanation
2
30
This interrupt occurs when a high-order carry occurs or high-order significant bits
are lost in fixed-point addition, subtraction, shifting, or sign control operations. The
operation is completed by ignoring the overflow data. If the interrupt is inhibited by
the program mask, the interrupt condition is cancelled. If the interrupt is permitted
by the program mask, but inhibited by the interrupt mask, the interrupt remains
pending.
2
31
This interrupt provides program control over the processor during program testing.
The program test interrupt flag is set by the Program Control instruction. When the
interrupt flag bit and the related interrupt mask bit in the state to be initiated are
both set, an interrupt occurs after the first instruction that is executed in the
initiated processor state.
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RCA Spectra 70 Specifications

General

Brand	RCA
Model	Spectra 70
Category	Computer Hardware
Language	English