11 TROUBLESHOOTING
Special Register List
(8) Latch area
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| Set by | Corresponding | Corresponding |
Number | Name | Meaning |
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| (When | ACPU | |||
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| set) | D9 | |
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| Drive where | Access file |
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| drive number |
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| S (Status |
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SD900 | power was | • Stores drive number if file was being accessed during power loss. | New |
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during power | change) |
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| interrupted |
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| loss |
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SD901 |
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| • Stores file name (with extension) in ASCII code if file was being |
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| accessed during power loss. |
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SD902 |
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| SD901 | B15 | to | B8 | B7 | to | B0 |
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| 2nd character |
| 1st character |
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| SD902 |
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SD903 | File name | Access file | 4th character |
| 3rd character | S (Status |
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SD903 | 6th character |
| 5th character |
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| active during | name during |
| New |
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| SD904 | 8th character |
| 7th character | change) |
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SD904 | power loss | power loss |
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SD905 | 1st character of |
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SD905 |
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| extension |
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| SD906 | 3rd character of |
| 2nd character of |
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SD906 |
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| extension |
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| extension |
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SD910 |
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| • Stored in sequence that PU key code was entered. |
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SD911 |
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| SD910 | B15 | to | B8 | B7 | to | B0 |
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| 2nd character |
| 1st character |
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SD912 |
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| SD911 | 4th character |
| 3rd character |
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SD913 |
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| SD912 | 6th character |
| 5th character |
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SD914 |
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| SD913 | 8th character |
| 7th character |
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SD915 |
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| SD914 |
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| 10th character |
| 9th character |
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SD916 |
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| SD915 | 12th character |
| 11th character |
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SD917 | RKEY input | RKEY input | SD916 | 14th character |
| 13th character |
| S (During | New |
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| SD917 | 16th character |
| 15th character |
| execution) |
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SD918 |
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| SD918 | 18th character |
| 17th character |
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SD919 |
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| SD919 |
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| 20th character |
| 19th character |
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SD920 |
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| SD920 |
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| 22nd character |
| 21st character |
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SD921 |
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| SD921 |
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| 24th character |
| 23rd character |
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SD922 |
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| SD922 | 26th character |
| 25th character |
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SD923 |
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| SD923 | 28th character |
| 27th character |
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| SD924 |
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| 30th character |
| 29th character |
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SD924 |
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| SD925 |
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| 32nd character |
| 31st character |
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SD925 |
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11 - 85 | 11 - 85 |