| /kernel/trunk/core/heap.inc |
|---|
| 20,6 → 20,7 |
| MEM_LIST_OFFSET equ 8 |
| FREE_BLOCK equ 4 |
| USED_BLOCK equ 8 |
| DONT_FREE_BLOCK equ 10h |
| virtual at 0 |
| MEM_BLOCK MEM_BLOCK |
| 728,8 → 729,10 |
| sub esi, 4096 |
| shr esi, 12 |
| mov eax, [page_tabs+esi*4] |
| test eax, USED_BLOCK |
| test al, USED_BLOCK |
| jz .not_used |
| test al, DONT_FREE_BLOCK |
| jnz .cantfree |
| and eax, not 4095 |
| mov ecx, eax |
| 765,6 → 768,9 |
| xor eax, eax |
| inc eax |
| ret |
| .cantfree: |
| xor eax, eax |
| ret |
| endp |
| user_normalize: |
| 836,6 → 842,8 |
| xor eax, eax |
| ret |
| @@: |
| test edx, DONT_FREE_BLOCK |
| jnz .ret0 |
| add ebx, 0x1FFF |
| shr edx, 12 |
| shr ebx, 12 |