| 45,81 → 45,7 |
|---|
| ret |
| endp |
| |
| align 4 |
| proc kernel_alloc stdcall, size:dword |
| locals |
| lin_addr dd ? |
| pages_count dd ? |
| endl |
| |
| push ebx |
| push edi |
| |
| mov eax, [size] |
| add eax, 4095 |
| and eax, not 4095; |
| mov [size], eax |
| test eax, eax |
| jz .err |
| |
| mov ebx, eax |
| shr ebx, 12 |
| mov [pages_count], ebx |
| |
| stdcall alloc_kernel_space, eax |
| test eax, eax |
| jz .err |
| mov [lin_addr], eax |
| |
| mov ecx, [pages_count] |
| mov edx, eax |
| mov ebx, ecx |
| |
| shr ecx, 3 |
| jz .next |
| |
| and ebx, not 7 |
| push ebx |
| stdcall _alloc_pages, ebx |
| pop ecx ; yes ecx!!! |
| test eax, eax |
| jz .err |
| |
| mov edi, eax |
| mov edx, [lin_addr] |
| @@: |
| stdcall map_page,edx,edi,dword PG_SW |
| add edx, 0x1000 |
| add edi, 0x1000 |
| dec ecx |
| jnz @B |
| .next: |
| mov ecx, [pages_count] |
| and ecx, 7 |
| jz .end |
| @@: |
| push ecx |
| call _alloc_page |
| pop ecx |
| test eax, eax |
| jz .err |
| |
| stdcall map_page,edx,eax,dword PG_SW |
| add edx, 0x1000 |
| dec ecx |
| jnz @B |
| .end: |
| mov eax, [lin_addr] |
| pop edi |
| pop ebx |
| ret |
| .err: |
| xor eax, eax |
| pop edi |
| pop ebx |
| ret |
| endp |
| |
| align 4 |
| proc kernel_free stdcall, base:dword |
| |