-
Amend the code you have just entered as follows, using the S command
again
| Address | Old Code | New Code |
|---|
| 0800 | 31 00 10 | 00 00 00 |
| 015A | 21 0A 08 | 21 0A F8 |
| 01F5 | 11 0A 08 | 11 0A F8 |
| 01FD | 11 BA 0B | 11 BA FB |
| 021D | 11 0A 08 | 11 0A F8 |
| 0220 | 21 4A 08 | 21 4A F8 |
| 022F | 21 8A 0B | 21 8A FB |
| 078E | 0A 03 | 15 09 |
| 0792 | 0A 03 | 06 0A |
| 07A6 | 0A 03 | 3B 09 |
| 07B8 | 0A 03 | 67 0A |
-
Enter S100 and insert C3 08 09, which is a jump past the much-modified
version of Nas-Sys you have typed in to some new code.
-
Enter S108 and type in the following code:
ED 73 03 01 31 00 10 CD 24 09 C3 00 00 31 00 10
CD 24 09 ED 7B 03 01 0E 00 C3 05 00 21 00 00 11
00 08 06 00 CD 31 09 06 08 1A 4E 77 79 12 23 13
10 F7 C9 CD B7 09 CD 24 09 11 5C 00 0E 13 CD 05
00 11 5C 00 0E 16 CD 05 00 FE FF CA 98 09 2A 0C
0C ED 5B 0E 0C B7 ED 52 19 D2 8B 09 11 80 00 01
80 00 ED B0 22 0C 0C 11 5C 00 0E 15 CD 05 00 FE
00 CA 56 09 FE FF CA 98 09 3A 7C 00 3D 32 7C 00
C3 6F 09 11 5C 00 0E 10 CD 05 00 CD 24 09 DF 5B
11 5C 00 0E 10 CD 05 00 CD 24 09 EF 44 69 72 65
63 74 6F 72 79 20 66 75 6C 6C 2E 0D 00 DF 5B CD
F1 09 EF 6E 61 6D 65 2E 0D 00 DF 63 21 5C 08 36
00 23 06 08 1A 77 23 13 10 FA E5 CD F1 09 EF 74
79 70 65 2E 0D 00 DF 63 E1 06 03 1A 77 23 13 10
FA 36 00 21 7C 08 36 00 C9 EF 50 6C 65 61 73 65
20 65 6E 74 65 72 20 66 69 6C 65 20 00 C9 CD B7
09 CD 24 09 11 5C 00 0E 0F CD 05 00 FE FF CA 52
0A 11 5C 00 0E 14 CD 05 00 21 80 00 ED 5B 0C 0C
01 80 00 ED B0 ED 53 0C 0C FE 00 CA 19 0A FE 01
CA 45 0A 3A 7C 00 3D 32 7C 00 C3 19 0A 11 5C 00
0E 10 CD 05 00 CD 24 09 DF 5B CD 24 09 EF 4E 6F
20 73 75 63 68 20 66 69 6C 65 2E 0D 00 DF 5B EF
43 6F 70 79 72 69 67 68 74 20 28 43 29 20 31 39
38 31 20 43 68 72 69 73 20 42 6C 61 63 6B 6D 6F
72 65 2E 0D 00 DF 5B 00 00 00 00 00 00 00 00 00
-
Enter GO to return to CP/M.
-
Enter SAVE 10 MONITOR.COM to put the program on disc.
The Operation
To use the program enter Monitor; the screen will clear and the Nas-Sys prompt