Unofficial Name: GetVarCmdUSB
BCALL Address: 50FB
Sends a silent link request to another calculator and receives a variable to RAM via USB or link port.
- OP1: type and name of variable to request (must be zero'd out)
- (sndRecState): 15h
- iy+1Bh set up accordingly
- 0,(iy+1Bh) must be set to receive from USB, reset to receive from link port
This BCALL will not throw any errors if problems are encountered.
It is basically the same as GetVarCmd, but if 0,(iy+1Bh) is set, it will attempt to use the USB port first. If that transfer fails or the flag is reset, it will fall back to the link port.