- // Branch if YPOS < 2047 can be treated as a GOTO, so don't do any
- // discovery in that case. Otherwise, have at it:
- if ((lo & 0xFFFF) != 0x7FFB)
+ // Branch if YPOS < 2047 (or YPOS > 0) can be treated as a GOTO, so
+ // don't do any discovery in that case. Otherwise, have at it:
+ if (((lo & 0xFFFF) != 0x7FFB) && ((lo & 0xFFFF) != 0x8003))