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doc: Fix interrupt level ARM documentation
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sebhub committed Jun 26, 2015
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7 changes: 3 additions & 4 deletions doc/cpu_supplement/arm.t
Expand Up @@ -152,10 +152,9 @@ confusion.

@subsection Interrupt Levels

The RTEMS interrupt level mapping scheme for the ARM is not a numeric level as
on most RTEMS ports. It is a bit mapping that corresponds the enable bit
postions in the Current Program Status Register (CPSR). There are only two
levels: IRQ enabled and IRQ disabled.
There are exactly two interrupt levels on ARM with respect to RTEMS. Level
zero corresponds to interrupts enabled. Level one corresponds to interrupts
disabled.

@subsection Interrupt Stack

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