5.4.11. SYS_FLEN (0x0C)

Returns the length of a specified file.


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

word 1

This is a handle for a previously opened, seekable file object.


On exit, r0 contains:

  • the current length of the file object, if the call is successful

  • –1 if an error occurs.

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