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section 7 - Index of

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MAINPROGRAMFAST INTERRUPTVECTORLONG INTERRUPTSUBROUTINEn1n2(a) Instruction Fetches from Memoryr---INTERRUPT SYNCHRONIZED ANDRECOGNIZED AS PENDING-.-- INTERRUPTS RE-ENABLEDINTERRUPT CONTROL CYCLE 1iINTERRUPT CONTROL CYCLE 2FETCHDECODEin1 .m -n1 .mii2 ii3 ii4 iinNY ii2 ii3 ii4RTl - n2iin RTl NYn2EXECUTEn1.m NY ii2 ii3ii4 iin RTlNYn2INSTRUCTION CYCLE COUNT 12 3 45 6 7 89 10 1112 13= INTERRUPT= INTERRUPT INSTRUCTION WORDn = NORMAL INSTRUCTION WORD(b) Program Controller PipelineFigure 7-11 JSR First Instruction <strong>of</strong> a Fast Interrupt

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