| 254,10 → 254,11 |
|---|
| ;arg: eax page address |
| pushfd |
| cli |
| inc [pg_data.pages_free] |
| shr eax, 12 ;page index |
| mov ebx, sys_pgmap |
| bts [ebx], eax ;that's all! |
| cmc |
| adc [pg_data.pages_free], 0 |
| shr eax, 3 |
| and eax, not 3 ;dword offset from page_map |
| add eax, ebx |
| 289,6 → 290,7 |
|---|
| align 4 |
| release_pages: |
| |
| push ebp |
| mov ebx, pg_data.pg_mutex |
| call wait_mutex ;ebx |
| |
| 298,6 → 300,7 |
|---|
| shr esi, 10 |
| add esi, pages_tab |
| |
| mov ebp, [pg_data.pages_free] |
| mov ebx, [page_start] |
| mov edx, sys_pgmap |
| @@: |
| 310,7 → 313,8 |
|---|
| |
| shr eax, 12 |
| bts [edx], eax |
| inc [pg_data.pages_free] |
| cmc |
| adc ebp, 0 |
| shr eax, 3 |
| and eax, -4 |
| add eax, edx |
| 323,8 → 327,9 |
|---|
| add esi, 4 |
| dec ecx |
| jnz @B |
| |
| mov [pg_data.pages_free], ebp |
| and [pg_data.pg_mutex],0 |
| pop ebp |
| ret |
| |
| align 4 |