83Plus:BCALLs:505C

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Synopsis

Unofficial Name: RunCatalog1Hook

BCALL Address: 505C

Checks the first byte of the block for the Catalog 1 Hook. If the byte is 83, the hook is run; otherwise, the active flag for the hook is set to zero.

Inputs

The block for the Catalog 1 Hook must be set up correctly.

Outputs

  • HL points to the start of the hook.
  • F is 6A if the hook was not run.

Destroys

Unknown

Comments

This BCALL is known to be present in OS 1.13, and is undocumented.

Credits and Contributions

  • Michael Cimino