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3-484 Vol. 2A INT n/INTO/INT 3—Call to Interrupt Procedure
INSTRUCTION SET REFERENCE, A-M
If the stack segment for the TSS is not a writable data segment.
If segment-selector index for stack segment is outside
descriptor table limits.
#PF(fault-code) If a page fault occurs.
#BP If the INT 3 instruction is executed.
#OF If the INTO instruction is executed and the OF flag is set.
#UD If the LOCK prefix is used.
Compatibility Mode Exceptions
Same exceptions as in protected mode.
64-Bit Mode Exceptions
#GP(0) If the instruction pointer in the 64-bit interrupt gate or 64-bit
trap gate is non-canonical.
#GP(selector) If the segment selector in the 64-bit interrupt or trap gate is
NULL.
If the interrupt vector number is outside the IDT limits.
If the interrupt vector number points to a gate which is in non-
canonical space.
If the interrupt vector number points to a descriptor which is not
a 64-bit interrupt gate or 64-bit trap gate.
If the descriptor pointed to by the gate selector is outside the
descriptor table limit.
If the descriptor pointed to by the gate selector is in non-canon-
ical space.
If the descriptor pointed to by the gate selector is not a code
segment.
If the descriptor pointed to by the gate selector doesn’t have the
L-bit set, or has both the L-bit and D-bit set.
If the descriptor pointed to by the gate selector has DPL > CPL.
#SS(0) If a push of the old EFLAGS, CS selector, EIP, or error code is in
non-canonical space with no stack switch.
#SS(selector) If a push of the old SS selector, ESP, EFLAGS, CS selector, EIP, or
error code is in non-canonical space on a stack switch (either
CPL change or no-CPL with IST).
#NP(selector) If the 64-bit interrupt-gate, 64-bit trap-gate, or code segment is
not present.