| 50,6 → 50,11 |
|---|
| pop ebx |
| ret |
| ;----------------------------------------------------------------------------- |
| safe_sti: |
| cmp byte [0xe000], 1 |
| jne @f |
| sti |
| @@:ret |
| |
| new_start_application_floppy: |
| ;input: |
| 230,7 → 235,7 |
|---|
| push ebx |
| push eax |
| call find_new_process_place ;find empty process slot |
| sti |
| call safe_sti |
| test eax,eax |
| jz .failed |
| |
| 257,7 → 262,7 |
|---|
| mov esi,12 ;file name length |
| cli |
| call fileread ;read file from RD |
| sti |
| call safe_sti |
| cmp eax,0 |
| jne .cleanfailed |
| ;check MENUET signature |
| 308,7 → 313,7 |
|---|
| cli |
| call fileread |
| ;ebx=file size |
| sti |
| call safe_sti |
| pop ecx |
| shr ebx,9 |
| cmp ecx,ebx |
| 343,7 → 348,7 |
|---|
| add esp,8 |
| mov [application_table_status],0 |
| popad |
| sti |
| call safe_sti |
| mov eax,-1 |
| ret |
| |
| 439,13 → 444,13 |
|---|
| mov [l.esp],eax ;set stack in TSS |
| |
| ;gdt |
| mov ebx,[new_process_place] |
| shl ebx,3 |
| ;mov ebx,[new_process_place] |
| ;shl ebx,3 |
| mov ax,app_code ;ax - selector of code segment |
| add ax,bx |
| ;add ax,bx |
| mov [l.cs],ax |
| mov ax,app_data |
| add ax,bx ;ax - selector of data segment |
| ;add ax,bx ;ax - selector of data segment |
| mov [l.ss],ax |
| mov [l.ds],ax |
| mov [l.es],ax |
| 455,11 → 460,10 |
|---|
| mov [l.io],word 128 |
| mov [l.eflags],dword 0x11202 |
| mov [l.ss0],os_data |
| shl ebx,9 |
| mov ebx,[new_process_place] |
| shl ebx,12 |
| add ebx,sysint_stack_data |
| mov [l.esp0],ebx |
| ; mov [l.esp1],0x56000 |
| ; mov [l.esp2],0x57000 |
| |
| ;copy tss to it place |
| mov eax,tss_sceleton |
| 490,29 → 494,7 |
|---|
| mov [edi+gdts+tss0+7],ah ;part of offset |
| mov [edi+gdts+tss0+5],word 01010000b*256+11101001b ;system flags |
| |
| ;set code and data segments |
| mov eax,[new_process_place] |
| shl eax,3 |
| ;set base address of code segment |
| mov word [eax+gdts+app_code-3+2],0 |
| mov byte [eax+gdts+app_code-3+4],0 |
| mov byte [eax+gdts+app_code-3+7],std_application_base_address shr 24 |
| ;set limit of code segment |
| ; mov ebx,[app_mem] |
| ; add ebx,4095 |
| ; shr ebx,12 |
| mov ebx,(0x80000000-std_application_base_address) shr 12 |
| mov [eax+gdts+app_code-3+0],bx |
| mov [eax+gdts+app_code-3+5],word 11010000b*256+11111010b+256*((0x80000000-std_application_base_address) shr 28) |
| ;set base address of data segment |
| mov word [eax+gdts+app_data-3+2],0 |
| mov byte [eax+gdts+app_data-3+4],0 |
| mov byte [eax+gdts+app_data-3+7],std_application_base_address shr 24 |
| ;set limit of data segment |
| mov [eax+gdts+app_data-3+0],bx |
| mov [eax+gdts+app_data-3+5],word 11010000b*256+11110010b+256*((0x80000000-std_application_base_address) shr 28) |
| |
| |
| ;flush keyboard and buttons queue |
| mov [0xf400],byte 0 |
| mov [0xf500],byte 0 |
| 536,7 → 518,7 |
|---|
| ; popad |
| mov eax,[process_number] ;set result |
| mov [application_table_status],0 ;unlock application_table_status mutex |
| sti |
| call safe_sti |
| ret 4 |
| ;----------------------------------------------------------------------------- |
| new_sys_threads: |