Tandy 1000 SL Technical Reference Manual page 111

ROM P a g i n g D e f i n i t i o n :
Two
2
Meg
ROMs ADDRESS ROM
PAGES
(TWO 1 Meg
ROMs) 19 18 17 16 4 3 2 1 0
F0000-FFFFF 1 1 1 1 x x x x x
E0000-EFFFF
1 1
1 0 1 x 1 1 1
E0000-EFFFF
1 1 1 0
1 x 1 1
0
E0000-EFFFF 1 1 1 0 1 x 1 0 1
E0000-EFFFF
1 1 1 0 1 x 1 0 0
E0000-EFFFF
1 1 1 0
1 x
0 1 1
E0000-EFFFF 1 1 1 0 1 x 0 1 0
E0000-EFFFF 1 1 1 0 1 x 0 0 1
E0000-EFFFF 1 1 1 0 1 x 0
0 0
TWO 4 Meg ROMS 19 18 17 16 4 3 2 1 0
F0000-FFFFF
1 1
1
1
X X
x x x
E0000-EFFFF
1 1
1
0 0 1 1 1 1
E0000-EFFFF 1
1
1
0 0 1 1 1 0
E0000-EFFFF
1 1 1 0
0 1 1 0 1
E0000-EFFFF
1 1 1 0 0 1 1 0 0
E0000-EFFFF 1 1 1 0 0 1 0 1 1
E0000-EFFFF 1 1 1
0
0 1 0 1 0
E0000-EFFFF 1 1 1 0 0 1 0 0 1
E0000-EFFFF
1 1
1
0 0 1 0 0 0
E0000-EFFFF 1 1 1 0 0 0 1 1 1
E0000-EFFFF 1 1
1 0
0 0 1 1 0
E0000-EFFFF 1 1 1
0
0 0 1 0 0
E0000-EFFFF
1 1
1
0
0 0 0 1 1
E0000-EFFFF 1 1 1
0 0 0 0 1 0
E0000-EFFFF
1
1
1 0 0 0 0 0
1
E0000-EFFFF 1 1 1
0
0 0 0 0 0
~0060-EFFFF
1 1 1
o
0 0 1 0 1
ROMC S
# O
#1
0 1
1 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
# O #1
0 1
1 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 0
SELECT
2 1 0
x l l
x 1 0
x x l
x o o
x l l
x 1 0
x o 1
x o o
2 1 0
1 1 1
1 1 0
1 0 1
1 0 0
0 1 1
0 1 0
0 0 1
0 0 0
1 1 1
1 1 0
1 0 1
1 0 0
0 1 1
0 1 0
0 0 1
0 0 0
x x x
x x x
64K P a g e
ROMO ROMl
1
2
3
4
1
2
3
4
ROMO ROMl
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
18