1. RST 5.5
  2. RST 7.5
  3. TRAP
  4. Both (a) and (b)
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1 Answers

Option 3 : TRAP

A non-maskable is an interrupt which can not be disabled.

RST 7.5, RST 5.5 are maskable interrupts but TRAP is a non-maskable interrupt.

Interrupts

Type

Vector

TRAP

Non-Maskable

0024

RST 7.5

Maskable

003C

RST 6.5

Maskable

0034

RST 5.5

Maskable

002C

INTR

Maskable

0000 to 0038

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