Showing changes from revision #2 to #3:
Added | Removed | Changed
Bit | Stream affected |
---|---|
0 | Enables serial driver |
1 | Disables VDU drivers |
2 | Disables VDU printer stream |
3 | Enables printer (regardless of VDU state) |
4 | Disables spooled output |
5 | Calls VDUXV (VDU extension vector) instead of VDU drivers |
6 | Disables printer, except for VDU 1,n? |
7 | Not used |
Bit 1 is not the same as VDU 21?; with VDU 21 bytes are still sent to the printer if it has been enables with VDU 2?.
Bit 3 is not the same as VDU 2?; when set (and bits 2 and 6 clear!) all bytes except the printer ignore character (see OS_Byte 6) are sent to the printer stream.