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Specifications

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System Macros Invoked by Drivers
RELCHAN
RELCHAN
Releases all controller data channels allocated to a device.
Format
RELCHAN
Description
The RELCHAN macro calls IOC$RELCHAN to release all controller data
channels allocated to a device. When the RELCHAN macro is invoked, R5 must
contain the address of the UCB. RELCHAN destroys the contents of R0 through
R2.
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