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| Rev 3601 | Rev 3643 | ||
|---|---|---|---|
| Line 448... | Line 448... | ||
| 448 | ; OUT: edi = -1 on error, device number otherwise |
448 | ; OUT: edi = -1 on error, device number otherwise |
| 449 | ; |
449 | ; |
| 450 | ;----------------------------------------------------------------- |
450 | ;----------------------------------------------------------------- |
| 451 | align 4 |
451 | align 4 |
| 452 | NET_ptr_to_num: |
452 | NET_ptr_to_num: |
| - | 453 | ||
| - | 454 | call NET_ptr_to_num4 |
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| - | 455 | ror edi, 2 ; If -1, stay -1 |
|
| - | 456 | ; valid device numbers have last two bits 0, so do just shr |
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| - | 457 | ||
| - | 458 | ret |
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| - | 459 | ||
| - | 460 | align 4 |
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| - | 461 | NET_ptr_to_num4: ; Todo, place number in device structure so we only need to verify? |
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| - | 462 | ||
| 453 | push ecx |
463 | push ecx |
| Line 454... | Line 464... | ||
| 454 | 464 | ||
| 455 | mov ecx, NET_DEVICES_MAX |
465 | mov ecx, NET_DEVICES_MAX |
| 456 | mov edi, NET_DRV_LIST |
- | |
| 457 | 466 | mov edi, NET_DRV_LIST |
|
| 458 | .loop: |
467 | .loop: |
| 459 | cmp ebx, [edi] |
468 | cmp ebx, [edi] |
| 460 | jz .found |
469 | je .found |
| 461 | add edi, 4 |
470 | add edi, 4 |
| 462 | dec ecx |
471 | dec ecx |
| Line 463... | Line -... | ||
| 463 | jnz .loop |
- | |
| 464 | - | ||
| 465 | ; repnz scasd could work too if eax is used instead of ebx! |
472 | jnz .loop |
| 466 | - | ||
| 467 | or edi, -1 |
473 | |
| 468 | 474 | or edi, -1 |
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| Line 469... | Line 475... | ||
| 469 | pop ecx |
475 | pop ecx |
| 470 | ret |
476 | ret |
| 471 | - | ||
| 472 | .found: |
- | |
| 473 | sub edi, NET_DRV_LIST |
477 | |
| 474 | shr edi, 2 |
478 | .found: |
| Line 475... | Line 479... | ||
| 475 | 479 | sub edi, NET_DRV_LIST |
|
| 476 | pop ecx |
480 | pop ecx |