| 178,47 → 178,7 |
|---|
| ret |
| endp |
| |
| align 4 |
| proc init_LFB |
| locals |
| pg_count dd ? |
| endl |
| |
| cmp dword [LFBAddress], -1 |
| jne @f |
| mov [BOOT_VAR+0x901c],byte 2 |
| mov ecx, 0x280000 |
| mov edx, PG_SW |
| call @mem_alloc@8 |
| mov [LFBAddress], eax |
| ret |
| @@: |
| test [SCR_MODE],word 0100000000000000b |
| jnz @f |
| mov [BOOT_VAR+0x901c],byte 2 |
| ret |
| @@: |
| call init_mtrr |
| |
| mov eax, [LFBAddress] |
| or eax, PG_LARGE+PG_UW |
| mov [_sys_pdbr+(LFB_BASE shr 20)], eax |
| add eax, 0x00400000 |
| mov [_sys_pdbr+4+(LFB_BASE shr 20)], eax |
| |
| mov dword [exp_lfb+4], LFB_BASE |
| |
| bt [cpu_caps], CAPS_PGE |
| jnc @F |
| or dword [_sys_pdbr+(LFB_BASE shr 20)], PG_GLOBAL |
| @@: |
| mov dword [LFBAddress], LFB_BASE |
| mov eax, cr3 ;flush TLB |
| mov cr3, eax |
| |
| ret |
| endp |
| |
| align 4 |
| proc new_mem_resize stdcall, new_size:dword |
| |
| 395,7 → 355,7 |
|---|
| mov eax, cr2 |
| push eax |
| |
| mov ax, app_data |
| mov ax, sel_app_data |
| mov ds, ax |
| mov es, ax |
| |
| 407,25 → 367,22 |
|---|
| cmp ebx, HEAP_BASE |
| jb .user_space ;ñòðàíèöà â ïàìÿòè ïðèëîæåíèÿ ; |
| |
| cmp ebx, LFB_BASE |
| cmp ebx, page_tabs |
| jb .kernel_heap |
| |
| cmp ebx, page_tabs |
| jb .lfb |
| |
| cmp ebx, heap_tabs |
| jb .user_tabs |
| |
| cmp ebx, OS_BASE |
| cmp ebx, LFB_BASE |
| jb .heap_tab |
| |
| cmp ebx, OS_BASE |
| jb .lfb |
| |
| ; cmp ebx, kernel_tabs |
| ; jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíèÿ ; |
| ;ïðîñòî ñîçäàäèì îäíó |
| |
| |
| |
| .lfb: |
| shr ebx, 22 |
| mov edx, [_sys_pdbr + ebx*4] |
| 996,7 → 953,7 |
|---|
| ret |
| @@: |
| cmp eax, 21 ;for test purposes only |
| ja @f ;will be removed soon |
| ja .fail ;will be removed soon |
| cmp ebx, OS_BASE |
| jae .fail |
| |
| 1178,7 → 1135,6 |
|---|
| _balloc: ; gcc fastcall |
| @balloc@4: |
| |
| |
| mov eax, [_pg_balloc] |
| add ecx, 4095 |
| and ecx, -4096 |