Speed of HP-49G Routine for Tektronix Vector Graphics Terminal

[Werner]

Careful with =PUSHhxs, that may cause a garbage collection... if your routine is in TEMPOB when it is executed (as is the case when it resides in a library in a covered port, for instance), and a garbage collection occurs, it will crash.
One easy way to avoid it is to put a 5-char dummy string on the stack, UNROT it, then read an treat the aguments and overwrite the string.
Cheers, Werner