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Reading old HP-65 program cards
03-03-2021, 12:28 AM
Post: #9
RE: Reading old HP-65 program cards
(03-02-2021 11:53 PM)Gene Dorr Wrote:  That's certainly helpful. It looks like there's no header at all, just the raw program memory. Any clue where I might find the decoding of the 6-bit values beyond what is shown in the example?

0 NOP
1 STO 4
2 3
3 2
4 1
5 STO 6
6 x
7 x!=y?
8 g
9 ROLUP
10 RCL
11 STO
12 f-1
13 ROLDN
14 f
15 RCL 8
16 RCL 7
17 X<>Y
18 6
19 5
20 4
21 RCL 6
22 +
23 RCL 4
24 E
25 x=y?
26 D
27 C
28 B
29 RCL 5
30 A
31 RCL 3
32 RCL 2
33 RCL 1
34 R/S
35 .
36 0
37 STO 7
38 /
39 A
40 B
41 x>y?
42 RTN
43 LBL
44 GTO
45 STO 5
46 DSP
47 STO 3
48 STO 2
49 STO 1
50 9
51 8
52 7
53 STO 8
54 -
55 x<=y?
56 CLx
57 Sub Pointer
58 EEX
59 CHS
60 LSTx
61 Pointer
62 ENTER
63 Top Of Memory

cheers

Tony
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RE: Reading old HP-65 program cards - teenix - 03-03-2021 12:28 AM



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