F$MapBlk

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Map Specific Block Maps the specified block(s) into unallocated blocks of process space
OS9 F$MapBlk 103F 4F

Entry Conditions

X starting block number

B number of blocks

Exit Conditions

U address of first block

Error Output

CC carry set on error

B error code, if any

Additional Information

  • The system maps blocks from the top down. It maps new blocks into the highest available addresses in the address space. See Clear Specified Block for information on unmapping.

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