Entry | |
---|---|
R0 | EOR mask word |
R1 | AND mask word |
Exit | |
---|---|
R0 | Old value |
The purpose of this call is to set or read the protection word for immediate operations.
You should use R0=0, and R1=-1 to read the word.
This SWI Call replaces the now deprecated Econet_ReadProtection.
This SWI is not re-entrant.