key2echo.tmb for the IC51
send characters back and forth
from serial port 1 to serial
port 2
-------------------------------
NEW
1 BAUD2=96
2 B=27
3 A=KEY
4 IF A=0 8
5 IF A=B 20
7 PRINT2 (A)
8 A=KEY2
9 IF A=0 3
10 PRINT (A)
11 GOTO 3
20 END