5.4.2. SYS_CLOSE (0x02)

Closes a file on the host system. The handle must reference a file that was opened with SYS_OPEN.


On entry, r1 contains a pointer to a one-word argument block:

word 1

This is a file handle referring to an open file.


On exit, r0 contains:

  • 0 if the call is successful

  • –1 if the call is not successful.

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