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ram.txt
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576 bits (72 bytes) of RAM in 9 pages ?
Page 0:
Nibble Description
0 Display buffer 2
1 "
2 "
3 "
4 "
5 "
6 "
7 "
8 GO flag ?
9 ?
10 Debounce counter
11 Cursor position
12 Display loop counter
13 R line pointer
14 Key code LSB
15 Key code MSB
Page 1:
Nibble Description
0 Display buffer 1
1 "
2 "
3 "
4 "
5 "
6 "
7 "
8 Loop counter
9 "
10 ROM address LSB
11 ...
12 ...
13 ROM address MSB
14 Raw key code (K lines)
15 Key code MSB
Page 2:
Nibble Description
0 Spelling 2
1 "
2 "
3 "
4 "
5 "
6 "
7 "
8 Timer/counter
9 "
10 "
11 Flag ?
12 ?
13 Guess counter
14 Tone related ?
15 RETNSRCH flag
Page 3:
Nibble Description
0 Spelling 1
1 "
2 "
3 "
4 "
5 "
6 "
7 "
8 Timer/counter/Rand
9 "
10 "
11 Timeout counter LSB
12 Timeout counter MSB
13 ?
14 ?
15 Talk flag ?
Page 4:
Nibble Description
0 Rand word # MSB
1 "
2 "
3 "
4 "
5 "
6 "
7 "
8 "
9 "
10 Residue word MSB
11 ?
12 ?
13 ?
14 Next first word MSB
15 Word count MSB
Page 5:
Nibble Description
0 Rand word # LSB
1 "
2 "
3 "
4 "
5 "
6 "
7 "
8 "
9 "
10 Residue word MSB ?
11 ?
12 ?
13 ?
14 Next first word LSB
15 Word count LSB
Page 6:
Link list MSBs
Page 7:
Link list LSBs
Page 8:
Nibble Description
0 Pointer to list of random word #s
1 Loading counter
2 ?
3 Pointer ?
4 ?
5 ?
6 ?
7 ?
8 ?
9 ?
10 ROM address ?
11 "
12 "
13 "
14 Loop counter for CALADDR
15 ?