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Rev | Author | Line No. | Line |
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4997 | gtament | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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5363 | yogev_ezra | 3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
4997 | gtament | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
5037 | gtament | 8 | head dd 0 |
4975 | gtament | 9 | |
4997 | gtament | 10 | linkedlist_add: |
5037 | gtament | 11 | push ebx |
5085 | gtament | 12 | mov ebx, [head] |
13 | mov [head], eax |
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14 | mov [eax + node.next], ebx |
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5037 | gtament | 15 | pop ebx |
5085 | gtament | 16 | ret |
4975 | gtament | 17 | |
5085 | gtament | 18 | linkedlist_unlink: |
5037 | gtament | 19 | push ebx ecx |
5085 | gtament | 20 | test eax, eax |
21 | jz .invalid_pointer |
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22 | mov ebx, eax ; eax - pointer to node for unlink |
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23 | cmp eax, [head] |
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24 | jz .unlink_head |
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4975 | gtament | 25 | .getnext: |
5085 | gtament | 26 | cmp [ebx+node.next], eax |
27 | jz .unlink |
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28 | cmp [ebx+node.next], 0 |
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29 | jz .invalid_pointer |
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30 | mov ebx, [ebx+node.next] |
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31 | jmp .getnext |
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4975 | gtament | 32 | .unlink: |
5085 | gtament | 33 | mov ecx, [eax+node.next] |
34 | mov [ebx+node.next], ecx |
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35 | jmp @f |
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4975 | gtament | 36 | .unlink_head: |
5085 | gtament | 37 | mov ebx, [eax+node.next] |
38 | mov [head], ebx |
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4975 | gtament | 39 | @@: |
40 | .invalid_pointer: |
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5037 | gtament | 41 | pop ecx ebx |
5085 | gtament | 42 | ret |
4997 | gtament | 43 | |
5023 | gtament | 44 | linkedlist_isvalid: ;eax - pointer to check; returns zero if valid |
5037 | gtament | 45 | push ebx ecx |
46 | xor ecx, ecx |
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47 | test eax, eax |
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48 | jz .invalid_pointer |
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49 | mov ebx, [head] |
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4997 | gtament | 50 | .next_check: |
5037 | gtament | 51 | cmp eax, ebx |
52 | jz .valid_pointer |
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53 | mov ebx, [ebx + node.next] |
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54 | test ebx, ebx |
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55 | jz .invalid_pointer |
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56 | jmp .next_check |
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4997 | gtament | 57 | .invalid_pointer: |
5037 | gtament | 58 | inc ecx |
4997 | gtament | 59 | .valid_pointer: |
5037 | gtament | 60 | mov eax, ecx |
61 | pop ecx ebx |
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4997 | gtament | 62 | ret |
4975 | gtament | 63 | |
4997 | gtament | 64 | linkedlist_gethead: |
5085 | gtament | 65 | mov eax, [head] |
66 | ret |
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4975 | gtament | 67 | |
68 | restore node |
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4979 | gtament | 69 | restore node.next |