Difference between revisions of "TCI"

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m (Protected "TCI" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite)))
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Latest revision as of 09:35, 4 December 2010

Instruction NameTerminate Current Interrupt
CP1610 Clock Cycles4
Opcode Range$0005
Input FlagsNone
Output FlagsNone
Addressing ModeImplied

Terminate Current Interrupt. This instruction pulses the TCI output of the CPU. It appears the purpose of this line is to interface to an external interrupt controller. The Intellvision does not connect this line to anything useful, and so the TCI instruction appears to have little or no use on the Intellivision.