VDU codes

  0
0		 0
1		 0
2		 0
3		 0
4		 0
5		 0
6		 0
7		 0
8		 0
9		 0
A		 0
B		 0
C		 0
D		 0
E		 0
F		 1
0		 1
1		 1
2		 1
3		 1
4		 1
5		 1
6		 1
7		 1
8		 1
9		 1
A		 1
B		 1
C		 1
D		 1
E		 1
F
00-1F
20-3F
40-5F
60-7F
80-9F
A0-BF
C0-DF
E0-FF

VDU codes #40 to #7F are graphic chars made of 2x3 cells, set with bit numbers:.

5 4
3 2
1 0

VDU codes #80 to #BF are as #00 to #3F, but black/white inverted.

VDU codes #C0 to #FF are as #40 to #7F, but the pixels in each 2x3 cell are in a chequerboard pattern.