Unofficial Name: Send4BytePacket
BCALL Address: 4EDC
Sends any 4-byte packet and receives acknowledgement packet over the link port.
- H: command to send (such as 09h)
- iy+1Bh set up accordingly
This BCALL will throw ERR:LINK if any problems are found, including receiving anything other than an acknowledgement.
The two bytes sent after the machine ID and command can be manipulated by changing header+2 before BCALLing this entry point.