| 17,25 → 17,6 |
|---|
| dw 8*0x41-1 |
| dd idts+8 |
| |
| build_process_gdt_tss_pointer: |
| |
| mov ecx,tss_data |
| mov edi,0 |
| setgdtl2: |
| mov [edi+gdts+ tss0 +0], word tss_step |
| mov [edi+gdts+ tss0 +2], cx |
| mov eax,ecx |
| shr eax,16 |
| mov [edi+gdts+ tss0 +4], al |
| mov [edi+gdts+ tss0 +7], ah |
| mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b |
| add ecx,tss_step |
| add edi,8 |
| cmp edi,8*(max_processes+5) |
| jbe setgdtl2 |
| |
| ret |
| |
| build_interrupt_table: |
| |
| mov edi, idts+8 |
| 67,7 → 48,7 |
|---|
| times 12 dd unknown_interrupt |
| |
| dd irq0 , irq_serv.irq_1, p_irq2 , p_irq3 ;irq_serv.irq_3 |
| dd p_irq4 ,irq_serv.irq_5,p_irq6,irq_serv.irq_7 |
| dd irq_serv.irq_4 ,irq_serv.irq_5,p_irq6,irq_serv.irq_7 |
| dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10 |
| dd irq_serv.irq_11,p_irq12,irqD ,p_irq14,p_irq15 |
| |
| 78,13 → 59,11 |
|---|
| |
| macro save_ring3_context |
| { |
| push ds es |
| pushad |
| } |
| macro restore_ring3_context |
| { |
| popad |
| pop es ds |
| } |
| |
| ; simply return control to interrupted process |
| 114,20 → 93,19 |
|---|
| exc_w_code 8, 10, 11, 12, 13, 14, 17 |
| |
| exc_c: |
| mov ax, os_data |
| mov ds, ax |
| mov es, ax |
| mov ax, app_data ;èñêëþ÷åíèå |
| mov ds, ax ;çàãðóçèì ïðàâèëüíûå çíà÷åíè |
| mov es, ax ;â ðåãèñòðû |
| |
| ; test if debugging |
| cli |
| mov eax, [CURRENT_TASK] |
| shl eax, 8 |
| mov eax, [SLOT_BASE+eax+APPDATA.debugger_slot] |
| mov eax, [current_slot] |
| mov eax, [eax+APPDATA.debugger_slot] |
| test eax, eax |
| jnz .debug |
| sti |
| ; not debuggee => say error and terminate |
| add esp, 28h |
| add esp, 0x20 ;28h |
| movzx eax, bl |
| mov [error_interrupt], eax |
| call show_error_parameters |
| 243,7 → 221,7 |
|---|
| irqh 2,5,7,8,9,10,11 |
| |
| irq_c: |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| call irqhandler |
| 252,7 → 230,7 |
|---|
| |
| p_irq6: |
| save_ring3_context |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| call fdc_irq |
| 262,7 → 240,7 |
|---|
| |
| p_irq3: |
| save_ring3_context |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| cmp [com2_mouse_detected],0 |
| 278,7 → 256,7 |
|---|
| |
| p_irq4: |
| save_ring3_context |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| cmp [com1_mouse_detected],0 |
| 294,7 → 272,7 |
|---|
| |
| p_irq12: |
| save_ring3_context |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| call check_mouse_data_ps2 |
| 303,7 → 281,7 |
|---|
| |
| p_irq14: |
| save_ring3_context |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| call [irq14_func] |
| 312,7 → 290,7 |
|---|
| iret |
| p_irq15: |
| save_ring3_context |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| call [irq15_func] |
| 335,7 → 313,7 |
|---|
| |
| irqD: |
| save_ring3_context |
| mov ax, os_data |
| mov ax, app_data ;os_data |
| mov ds, ax |
| mov es, ax |
| |
| 674,6 → 652,17 |
|---|
| mov edi, [.slot] |
| shl edi,8 |
| add edi,SLOT_BASE |
| |
| mov eax, [edi+APPDATA.io_map] |
| cmp eax, (tss._io_map_0-OS_BASE+PG_MAP) |
| je @F |
| call free_page |
| @@: |
| mov eax, [edi+APPDATA.io_map+4] |
| cmp eax, (tss._io_map_1-OS_BASE+PG_MAP) |
| je @F |
| call free_page |
| @@: |
| mov eax, 0x20202020 |
| stosd |
| stosd |
| 837,13 → 826,12 |
|---|
| |
| build_scheduler: |
| |
| ; mov esi,boot_sched_1 |
| ; call boot_log |
| call build_process_gdt_tss_pointer |
| mov esi,boot_sched_1 |
| call boot_log |
| ; call build_process_gdt_tss_pointer |
| |
| ; mov esi,boot_sched_2 |
| ; call boot_log |
| call build_interrupt_table |
| |
| ret |
| |