| /kernel/trunk/init.inc |
|---|
| 455,7 → 455,27 |
| acpi_locate: |
| push ebx |
| push edi |
| movzx ebx, word [0x40E] |
| shl ebx, 4 |
| lea ecx, [ebx+1024] |
| call .check |
| test ebx, ebx |
| jz @F |
| jmp .done |
| @@: |
| mov ebx, ACPI_HI_RSDP_WINDOW_START |
| mov edi, ACPI_HI_RSDP_WINDOW_END |
| call .check |
| .done: |
| mov eax, ebx |
| pop edi |
| pop ebx |
| ret |
| .check: |
| cmp [ebx], dword 0x20445352 |
| jne .next |
| 472,17 → 492,12 |
| test al, al |
| jnz .next |
| mov eax, ebx |
| pop ebx |
| ret |
| .next: |
| add ebx, 16 |
| cmp ebx, ACPI_HI_RSDP_WINDOW_END |
| cmp ebx, edi |
| jb .check |
| pop ebx |
| xor eax, eax |
| xor ebx, ebx |
| ret |
| align 4 |