| 103,7 → 103,6 |
|---|
| |
| mov eax, 0xC0000+PG_UW |
| mov edi, page_tabs+0xC0*4 |
| mov edx, 0x1000 |
| mov ecx, 64 |
| @@: |
| stosd |
| 145,10 → 144,11 |
|---|
| v86_get_lin_addr: |
| push ecx edx |
| mov ecx, eax |
| mov edx, page_tabs |
| shr ecx, 12 |
| mov edx, [page_tabs+ecx*4] |
| and eax, 0xFFF |
| add eax, [edx+ecx*4] ; atomic operation, no mutex needed |
| and edx, 0xFFFFF000 |
| or eax, edx |
| pop edx ecx |
| ret |
| |
| 255,34 → 255,35 |
|---|
| ; destroys: nothing |
| v86_start: |
| |
| xchg bx, bx |
| |
| pushad |
| |
| cli |
| |
| mov ecx, [CURRENT_TASK] |
| shl ecx, 8 |
| add ecx, SLOT_BASE |
| mov ecx, [current_slot] |
| |
| push dword [ecx+APPDATA.io_map] |
| push dword [ecx+APPDATA.io_map+4] |
| push [ecx+APPDATA.process] |
| push [ecx+APPDATA.saved_esp0] |
| mov [ecx+APPDATA.saved_esp0], esp |
| mov [tss._esp0], esp |
| |
| mov eax, [esi+V86_machine.iopm] |
| call get_pg_addr |
| inc eax |
| push dword [ecx+APPDATA.io_map] |
| push dword [ecx+APPDATA.io_map+4] |
| mov dword [ecx+APPDATA.io_map], eax |
| mov dword [page_tabs + (tss._io_map_0 shr 10)], eax |
| |
| mov eax, [esi+V86_machine.iopm] |
| add eax, 0x1000 |
| call get_pg_addr |
| inc eax |
| mov dword [ecx+APPDATA.io_map+4], eax |
| mov dword [page_tabs + (tss._io_map_1 shr 10)], eax |
| |
| push [ecx+APPDATA.process] |
| push [ecx+APPDATA.saved_esp0] |
| mov [ecx+APPDATA.saved_esp0], esp |
| mov [tss._esp0], esp |
| |
| mov eax, [esi+V86_machine.process] |
| mov [ecx+APPDATA.process], eax |
| mov [current_process], eax |
| mov eax, [eax+PROC.pdt_0_phys] |
| mov cr3, eax |
| |
| 765,19 → 766,20 |
|---|
| mov esp, esi |
| |
| cli |
| mov ecx, [CURRENT_TASK] |
| shl ecx, 8 |
| mov ecx, [current_slot] |
| pop eax |
| mov [SLOT_BASE+ecx+APPDATA.saved_esp0], eax |
| |
| mov [ecx+APPDATA.saved_esp0], eax |
| mov [tss._esp0], eax |
| pop eax |
| mov [SLOT_BASE+ecx+APPDATA.process], eax |
| mov [ecx+APPDATA.process], eax |
| pop ebx |
| mov dword [SLOT_BASE+ecx+APPDATA.io_map+4], ebx |
| mov dword [ecx+APPDATA.io_map+4], ebx |
| mov dword [page_tabs + (tss._io_map_1 shr 10)], ebx |
| pop ebx |
| mov dword [SLOT_BASE+ecx+APPDATA.io_map], ebx |
| mov dword [ecx+APPDATA.io_map], ebx |
| mov dword [page_tabs + (tss._io_map_0 shr 10)], ebx |
| mov [current_process], eax |
| mov eax, [eax+PROC.pdt_0_phys] |
| mov cr3, eax |
| sti |
| 906,74 → 908,3 |
|---|
| call do_change_task |
| popad |
| iretd |
| |
| align 4 |
| |
| v86_entry: |
| xchg bx, bx |
| mov ebx, 100000 |
| call delay_hs |
| jmp v86_entry |
| |
| align 4 |
| proc v86_init |
| locals |
| v86_slot dd ? |
| v86_cmdline dd ? ;0x00 |
| v86_path dd ? ;0x04 |
| v86_eip dd ? ;0x08 |
| v86_esp dd ? ;0x0C |
| v86_mem dd ? ;0x10 |
| endl |
| |
| |
| xor eax, eax |
| mov [v86_eip], v86_entry |
| mov [v86_cmdline], eax |
| mov [v86_esp], eax |
| mov [v86_path], eax |
| |
| call lock_application_table |
| |
| call alloc_thread_slot |
| test eax, eax |
| jz .failed |
| |
| mov [v86_slot], eax |
| |
| mov edi, eax |
| shl edi, 8 |
| add edi, SLOT_BASE |
| mov esi, edi ;edx=edi - pointer to extended infomation about new thread |
| mov ecx, 256/4 |
| xor eax, eax |
| cld |
| rep stosd ;clean extended information about new thread |
| mov [esi], dword 'V86 ' |
| |
| stdcall create_process, 4096, OS_BASE, 4096 |
| test eax, eax |
| jz .failed |
| |
| mov [eax+PROC.mem_used], 4096 |
| mov [esi+APPDATA.process], eax |
| |
| lea ebx, [esi+APPDATA.list] |
| lea ecx, [eax+PROC.thr_list] |
| list_add_tail ebx, ecx ;add thread to process child's list |
| |
| |
| lea eax, [v86_cmdline] |
| stdcall set_app_params , [v86_slot], eax, 0, 0, 2 |
| |
| mov eax, [process_number] ;set result |
| call unlock_application_table |
| ret |
| .failed: |
| xor eax, eax |
| .failed1: |
| call unlock_application_table |
| dec eax ;-1 |
| ret |
| endp |
| |