| /kernel/trunk/kernel.asm |
|---|
| 3159,6 → 3159,14 |
| ; +26 dword used mem |
| ; +30 dword PID , process idenfification number |
| ; |
| ; if given memory address belongs to kernel then error |
| push ebx |
| mov eax, ebx |
| mov ebx, 0x4C |
| call is_region_userspace |
| pop ebx |
| test eax, eax |
| jz .addr_error |
| cmp ecx, -1 ; who am I ? |
| jne .no_who_am_i |
| 3249,6 → 3257,10 |
| mov [esp+32], eax |
| ret |
| .addr_error: ; if given memory address is illegal |
| mov eax, -1 |
| ret |
| align 4 |
| sys_clock: |
| cli |