| 0,0 → 1,63 |
|---|
| ; SET UP OS TASK |
| |
| mov esi,boot_setostask |
| call boot_log |
| |
| ; mov eax, fpu_data |
| ; mov dword [SLOT_BASE+APPDATA.fpu_state], eax |
| ; mov dword [SLOT_BASE+APPDATA.fpu_handler], 0 |
| ; mov dword [SLOT_BASE+APPDATA.sse_handler], 0 |
| |
| ; name for OS/IDLE process |
| |
| mov dword [SLOT_BASE+256+APPDATA.app_name], dword 'OS/I' |
| mov dword [SLOT_BASE+256+APPDATA.app_name+4], dword 'DLE ' |
| mov edi, [os_stack] |
| mov dword [SLOT_BASE+256+APPDATA.pl0_stack], edi |
| add edi, RING0_STACK_SIZE |
| mov dword [SLOT_BASE+256+APPDATA.fpu_state], edi |
| |
| mov esi, fpu_data |
| mov ecx, 512/4 |
| cld |
| rep movsd |
| |
| mov dword [SLOT_BASE+256+APPDATA.fpu_handler], 0 |
| mov dword [SLOT_BASE+256+APPDATA.sse_handler], 0 |
| |
| mov ebx, [def_cursor] |
| mov dword [SLOT_BASE+256+APPDATA.cursor], ebx |
| |
| mov ebx, SLOT_BASE+256+APP_OBJ_OFFSET |
| mov dword [SLOT_BASE+256+APPDATA.fd_obj], ebx |
| mov dword [SLOT_BASE+256+APPDATA.bk_obj], ebx |
| |
| ; task list |
| mov [TASK_DATA+TASKDATA.wnd_number], 1 ; on screen number |
| mov [TASK_DATA+TASKDATA.pid], 1 ; process id number |
| mov [TASK_DATA+TASKDATA.mem_start], 0 ; process base address |
| |
| mov edi,tss_data+tss_step |
| mov ecx, (tss_step)/4 |
| xor eax, eax |
| cld |
| rep stosd |
| |
| mov edi,tss_data+tss_step |
| mov [edi+TSS._ss0], os_data |
| mov eax,cr3 |
| mov [edi+TSS._cr3],eax |
| mov [edi+TSS._eip],osloop |
| mov [edi+TSS._eflags],dword 0x11202 ; sti and resume |
| mov eax, [os_stack] |
| add eax, RING0_STACK_SIZE |
| mov [edi+TSS._esp], eax |
| mov [edi+TSS._cs],os_code |
| mov [edi+TSS._ss],os_data |
| mov [edi+TSS._ds],os_data |
| mov [edi+TSS._es],os_data |
| mov [edi+TSS._fs],os_data |
| mov [edi+TSS._gs],os_data |
| |
| mov ax,tss0 |
| ltr ax |