83Plus:BCALLs:4F33

Synopsis

Unofficial Name: SendOSHeader

BCALL Address: 4F33

Sends a header packet, receives acknowledgement and continue, sends acknowledgement and then the 256 bytes at 7A:4000h (the OS header), then receives acknowledgement.

Inputs

• iy+1Bh set up accordingly

Outputs

• None

Destroys

• All
• appData

Comments

This BCALL will throw ERR:LINK if any problems are found.

A similar BCALL is 4F42, which sends 02h, 0Dh, and the 254 bytes at 7A:4100h instead.