14,6 → 14,11 |
pushfd |
cli |
push ebx |
;//- |
cmp [pg_data.pages_free], 1 |
jle .out_of_memory |
;//- |
|
mov ebx, [page_start] |
mov ecx, [page_end] |
.l1: |
27,15 → 32,27 |
xor eax,eax |
ret |
.found: |
;//- |
dec [pg_data.pages_free] |
jz .out_of_memory |
;//- |
btr [ebx], eax |
mov [page_start],ebx |
sub ebx, sys_pgmap |
lea eax, [eax+ebx*8] |
shl eax, 12 |
dec [pg_data.pages_free] |
;//- dec [pg_data.pages_free] |
pop ebx |
popfd |
ret |
;//- |
.out_of_memory: |
mov [pg_data.pages_free], 1 |
xor eax, eax |
pop ebx |
popfd |
ret |
;//- |
endp |
|
align 4 |
48,9 → 65,14 |
add eax, 7 |
shr eax, 3 |
mov [count], eax |
cmp eax, [pg_data.pages_free] |
ja .fail |
|
;//- |
mov ebx, [pg_data.pages_free] |
sub ebx, 9 |
js .out_of_memory |
shr ebx, 3 |
cmp eax, ebx |
jg .out_of_memory |
;//- |
mov ecx, [page_start] |
mov ebx, [page_end] |
.find: |
64,6 → 86,7 |
inc ecx |
cmp ecx,ebx |
jb .match |
.out_of_memory: |
.fail: |
xor eax, eax |
pop edi |
479,6 → 502,15 |
cmp edi, esi |
jb @B |
.grow: |
;//- |
pop edi |
push edi |
mov esi, [pg_data.pages_free] |
sub esi, 1 |
shr edi, 12 |
cmp esi, edi |
jle .out_of_memory |
;//- |
pop edi |
pop esi |
@@: |
500,7 → 532,10 |
jb @B |
|
jmp .update_size |
;//- |
.exit_pop: |
.out_of_memory: |
;//- |
pop edi |
pop esi |
.exit: |