| 480,6 → 480,40 |
|---|
| apm_end: |
| _setcursor d80x25_top_num, 0 |
| |
| ; --------------- ACPI --------------------- |
| ACPI_LO_RSDP_WINDOW_END = 0x000A0000 |
| ACPI_HI_RSDP_WINDOW_START = 0x000E0000 |
| |
| acpi: |
| xor eax, eax |
| mov [es:BOOT_LO.devicesdat_data], eax |
| mov [es:BOOT_LO.devicesdat_size], eax |
| mov [es:BOOT_LO.acpi_rsdp], eax |
| push ds |
| mov ds, ax |
| mov ax, word [40Eh] |
| add ax, 64 |
| .check: |
| mov ds, ax |
| cmp [ds:0], dword 'RSD ' |
| jne .next |
| cmp [ds:4], dword 'PTR ' |
| jne .next |
| shl eax, 4 |
| mov [es:BOOT_LO.acpi_rsdp], eax |
| jmp .end |
| .next: |
| inc ax |
| ; skip VRAM and ROM area A0000h to E0000h |
| cmp ax, (ACPI_LO_RSDP_WINDOW_END shr 4) |
| jne @f |
| add ax, ((ACPI_HI_RSDP_WINDOW_START - ACPI_LO_RSDP_WINDOW_END) shr 4) |
| @@: ; end of 1Mb? |
| or ax, ax |
| jnz .check |
| .end: |
| pop ds |
| |
| if ~ defined extended_primary_loader |
| ;CHECK current of code |
| cmp [cfgmanager.loader_block], -1 |