| 49,6 → 49,12 |
|---|
| ; Read through BIOS? |
| cmp [hdpos], 0x80 |
| jae .bios |
| ; hd_read_{dma,pio} use old ATA with 28 bit for sector number |
| cmp eax, 0x10000000 |
| jb @f |
| inc [hd_error] |
| jmp return_01 |
| @@: |
| ; DMA read is permitted if [allow_dma_access]=1 or 2 |
| cmp [allow_dma_access], 2 |
| ja .nodma |
| 235,6 → 241,8 |
|---|
| |
| align 4 |
| cache_write_pio: |
| cmp dword[esi],0x10000000 |
| jae .bad |
| ; call disable_ide_int |
| |
| call wait_for_hd_idle |
| 295,6 → 303,9 |
|---|
| pop esi ecx |
| |
| ret |
| .bad: |
| inc [hd_error] |
| ret |
| |
| save_hd_wait_timeout: |
| |
| 686,6 → 697,9 |
|---|
| write_cache_chain: |
| cmp [hdpos], 0x80 |
| jae bd_write_cache_chain |
| mov eax,[cache_chain_ptr] |
| cmp dword[eax],0x10000000 |
| jae .bad |
| push esi |
| mov eax, IDE_descriptor_table |
| mov edx,eax |
| 779,6 → 793,9 |
|---|
| jnz hd_write_error_dma |
| pop esi |
| ret |
| .bad: |
| inc [hd_error] |
| ret |
| |
| uglobal |
| IDEContrRegsBaseAddr dw ? |