raeofsunshine
/
KimisOS
mirror of https://github.com/raeofsunshinedev/KimisOS.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

more preempting stuf

This commit is contained in:
notsomeidiot123 2026-07-04 01:21:59 -04:00
parent de0b8cd37a
commit 176261bdcc
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/kernel/arch_i386/memory.c
View File

@ -15,6 +15,7 @@ mmap_entry_t mmap;
uint32_t mmap_entry_c; uint32_t mmap_entry_c;
uint32_t pm_alloc(){ uint32_t pm_alloc(){
asm("cli");
for(uint32_t i = 0; i < mmap_count; i++){ for(uint32_t i = 0; i < mmap_count; i++){
for(int j = 0; j < 8; j++){ for(int j = 0; j < 8; j++){
if(!(pm_map[i] & (1 << j))){ if(!(pm_map[i] & (1 << j))){
@ -23,8 +24,11 @@ uint32_t pm_alloc(){
} }
} }
} }
return 0;
asm("sti");
} }
uint32_t pm_alloc_index(uint32_t index){ uint32_t pm_alloc_index(uint32_t index){
asm("cli");
for(uint32_t i = 0; i < 2; i++){ for(uint32_t i = 0; i < 2; i++){
for(int j = 0; j < 8; j++){ for(int j = 0; j < 8; j++){
// if(!(pm_map[i] & (1 << j))){ // if(!(pm_map[i] & (1 << j))){
@ -33,8 +37,10 @@ uint32_t pm_alloc_index(uint32_t index){
} }
} }
return (index << 3) << 12; return (index << 3) << 12;
asm("sti");
} }
uint32_t pm_alloc_64kaligned(){ uint32_t pm_alloc_64kaligned(){
asm("cli");
uint32_t cont = 0; uint32_t cont = 0;
uint32_t current = 0; uint32_t current = 0;
for(uint32_t i = 0; i < mmap_count; i++){ for(uint32_t i = 0; i < mmap_count; i++){
@ -56,6 +62,8 @@ uint32_t pm_alloc_64kaligned(){
current = i; current = i;
cont++; cont++;
} }
return 0;
asm("sti");
} }
void pm_free(uint32_t address){ void pm_free(uint32_t address){
pm_map[address >> 15] &= ~(1 << ((address>>12) & 7)); pm_map[address >> 15] &= ~(1 << ((address>>12) & 7));