interrupt = I = interrupts locked out
interrupt list n.
[MS-DOS] The list of all known software interrupt calls (both documented and undocumented) for IBM PCs and
compatibles, maintained and made available for free redistribution by Ralf Brown <email@example.com>. As of late 1992,
it had grown to approximately two megabytes in length.
--The Jargon File version 4.3.1, ed. ESR, this entry manually entered by rootbeer277.