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Root Counter Mode Combinations: Difference between revisions

Revision as of 05:40, 23 October 2026
RemmyLee
(Hardware tests: 15 more test pages (CPU, DMA, SPU, GPU, MDEC, CD-ROM, bus), each with See also links to the pages that measure the same parts)
Revision as of 05:41, 23 October 2026
RemmyLee
(Hardware tests: See also links back from 37 existing pages to the new ones)
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The counter under test is timed by another root counter counting system clock cycles: root counter 2, or root counter 0 when root counter 2 is under test. Each group masks IRQ4 to IRQ6 in I_MASK and polls and acknowledges I_STAT itself with interrupts off. The first [Root Counter Behavior](/tests/timers2/) test measured the single cases.[^run]The counter under test is timed by another root counter counting system clock cycles: root counter 2, or root counter 0 when root counter 2 is under test. Each group masks IRQ4 to IRQ6 in I_MASK and polls and acknowledges I_STAT itself with interrupts off. The first [Root Counter Behavior](/tests/timers2/) test measured the single cases.[^run]
+See also:
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+- [Peripheral Registers and Bus Delays](/tests/peripheral-bus-delays/)
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## Results## Results