873 lines
17 KiB
PHP
873 lines
17 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; MenuetOS process management, protected ring3 ;;
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;; ;;
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;; Distributed under GPL. See file COPYING for details. ;;
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;; Copyright 2003 Ville Turjanmaa ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 32
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; GDT TABLE
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gdts:
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dw gdte-$-1
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dd gdts
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dw 0
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int_code_l:
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os_code_l:
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dw 0xffff
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dw 0x0000
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db 0x00
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dw 11011111b *256 +10011010b
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db 0x00
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int_data_l:
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os_data_l:
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dw 0xffff
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dw 0x0000
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db 0x00
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dw 11011111b *256 +10010010b
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db 0x00
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app_code_l:
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dw ((0x80000000-std_application_base_address) shr 12) and 0xffff
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dw 0
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db 0
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dw 11010000b*256+11111010b+256*((0x80000000-std_application_base_address) shr 28)
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db std_application_base_address shr 24
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app_data_l:
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dw (0x80000000-std_application_base_address) shr 12 and 0xffff
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dw 0
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db 0
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dw 11010000b*256+11110010b+256*((0x80000000-std_application_base_address) shr 28)
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db std_application_base_address shr 24
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graph_data_l:
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dw 0x3ff
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dw 0x0000
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db 0x00
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dw 11010000b *256 +11110010b
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db 0x00
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tss0_l:
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times (max_processes+10) dd 0,0
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gdte:
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idtreg:
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dw 8*0x41-1
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dd idts+8
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label idts at 0xB100-8
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uglobal
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tss_sceleton:
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l.back dw 0,0
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l.esp0 dd 0
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l.ss0 dw 0,0
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l.esp1 dd 0
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l.ss1 dw 0,0
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l.esp2 dd 0
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l.ss2 dw 0,0
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l.cr3 dd 0
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l.eip dd 0
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l.eflags dd 0
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l.eax dd 0
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l.ecx dd 0
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l.edx dd 0
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l.ebx dd 0
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l.esp dd 0
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l.ebp dd 0
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l.esi dd 0
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l.edi dd 0
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l.es dw 0,0
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l.cs dw 0,0
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l.ss dw 0,0
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l.ds dw 0,0
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l.fs dw 0,0
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l.gs dw 0,0
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l.ldt dw 0,0
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l.trap dw 0
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l.io dw 0
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endg
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build_process_gdt_tss_pointer:
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mov ecx,tss_data
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mov edi,0
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setgdtl2:
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mov [edi+gdts+ tss0 +0], word tss_step
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mov [edi+gdts+ tss0 +2], cx
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mov eax,ecx
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shr eax,16
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mov [edi+gdts+ tss0 +4], al
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mov [edi+gdts+ tss0 +7], ah
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mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b
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add ecx,tss_step
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add edi,8
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cmp edi,8*(max_processes+5)
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jbe setgdtl2
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ret
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build_interrupt_table:
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mov edi, idts+8
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mov esi, sys_int
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mov ecx, 0x40
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@@:
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mov eax, [esi]
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mov [edi], ax ; lower part of offset
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mov [edi+2], word os_code ; segment selector
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shr eax, 16
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mov [edi+4], word 10001110b shl 8 ; interrupt descriptor
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mov [edi+6], ax
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add esi, 4
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add edi, 8
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dec ecx
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jnz @b
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;mov edi,8*0x40+idts+8
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mov [edi + 0], word (i40 and ((1 shl 16)-1))
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mov [edi + 2], word os_code
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mov [edi + 4], word 11101110b*256
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mov [edi + 6], word (i40 shr 16)
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ret
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iglobal
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sys_int:
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dd e0,e1,e2,e3,e4,e5,e6,e7,e8,e9,e10,e11,e12,e13,e14,e15
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dd e16,e17
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times 14 dd unknown_interrupt
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dd irq0 ,irq1 ,p_irq2 ,p_irq3 ,p_irq4 ,p_irq5,p_irq6 ,p_irq7
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dd p_irq8,p_irq9,p_irq10,p_irq11,p_irq12,irqD ,p_irq14,p_irq15
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times 16 dd unknown_interrupt
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dd i40
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endg
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; simply return control to interrupted process
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unknown_interrupt:
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iret
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macro exc_wo_code [num]
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{
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forward
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e#num :
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mov bl, num
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jmp exc_c
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}
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macro exc_w_code [num]
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{
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forward
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e#num :
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add esp, 4
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mov bl, num
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jmp exc_c
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}
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exc_wo_code 0, 1, 2, 3, 4, 5, 6, 9, 15, 16 ; 18, 19
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exc_w_code 8, 10, 11, 12, 13, 14, 17
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exc_c:
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mov ax, os_data
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mov ds, ax
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mov es, ax
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movzx eax, bl
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mov [error_interrupt], eax
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call show_error_parameters
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mov edx, [0x3010]
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mov [edx + 0xA], byte 4
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jmp change_task
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;;;;;;;;;;;;;;;;;;;;;;;
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;; FPU ERROR HANDLER ;;
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;;;;;;;;;;;;;;;;;;;;;;;
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align 4
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e7:
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clts
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push eax
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push ds es
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov eax, [prev_user_of_fpu]
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shl eax, 8
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add eax, 0x80000 + 0x10
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fsave [eax]
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mov eax, [0x3000]
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mov [prev_user_of_fpu], eax
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shl eax, 8
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add eax, 0x80000
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cmp [eax + 0x7f], byte 0
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je @f
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frstor [eax+0x10]
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@@:
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mov [eax + 0x7f], byte 1
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pop es ds
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pop eax
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iret
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iglobal
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prev_user_of_fpu dd 1
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endg
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writehex:
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pusha
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mov edi, [write_error_to]
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mov esi, 8
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@@:
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mov ecx, eax
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and ecx, 0xf
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mov cl,[ecx+hexletters]
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mov [edi],cl
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dec edi
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shr eax,4
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dec esi
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jnz @b
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popa
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ret
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iglobal
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hexletters db '0123456789ABCDEF'
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error_interrupt dd -1
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process_error db 'K : Process - forced terminate INT: 00000000',13,10,0
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process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0
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process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0
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system_error db 'K : Kernel error',13,10,0
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endg
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uglobal
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write_error_to dd 0x0
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endg
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show_error_parameters:
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mov [write_error_to],process_pid+43
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mov eax,[0x3000]
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shl eax, 5
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mov eax,[0x3000+4+eax]
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call writehex
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mov [write_error_to],process_error+43
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mov eax,[error_interrupt]
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call writehex
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cmp dword [esp+4+4], os_code ; CS
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jnz @f
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mov esi,system_error
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call sys_msg_board_str
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@@:
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mov eax, [esp+4] ; EIP
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mov [write_error_to],process_eip+43
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call writehex
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mov esi,process_error
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call sys_msg_board_str
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mov esi,process_pid
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call sys_msg_board_str
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mov esi,process_eip
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call sys_msg_board_str
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ret
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; irq1 -> hid/keyboard.inc
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macro irqh [num]
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{
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forward
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p_irq#num :
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pushad
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mov edi, num
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jmp irq_c
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}
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irqh 2,3,4,5,7,8,9,10,11,12,14,15
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irq_c:
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push ds es
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mov ax, os_data
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mov ds, ax
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mov es, ax
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call irqhandler
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pop es ds
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popad
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iret
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p_irq6:
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pushad
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push ds es
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mov ax, os_data
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mov ds, ax
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mov es, ax
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call fdc_irq
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mov [check_idle_semaphore],5
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mov al, 0x20
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out 0x20, al
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pop es ds
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popad
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iret
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irqD:
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pushad
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push ds es
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov dx,0xf0
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mov al,0
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out dx,al
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mov dx,0xa0
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mov al,0x20
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out dx,al
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mov dx,0x20
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out dx,al
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pop es ds
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popad
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iret
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irqhandler:
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push edi
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mov esi,edi ; 1
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shl esi,6 ; 1
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add esi,irq00read ; 1
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shl edi,12 ; 1
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add edi,0x2E0000
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mov [check_idle_semaphore],5
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irqnewread:
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mov dx,[esi] ; 2+
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cmp dx,0 ; 1
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jz irqover
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cmp [esi+3],byte 1 ; 2 ; byte read
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jne noirqbyte ; 4-11
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in al,dx
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mov edx,[edi]
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cmp edx,4000
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je irqfull
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mov ebx,edi
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add ebx,0x10
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add ebx,edx
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mov [ebx],al
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inc edx
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mov [edi],edx
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add esi,4
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jmp irqnewread
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noirqbyte:
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cmp [esi+3],byte 2 ; word read
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jne noirqword
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in ax,dx
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mov edx,[edi]
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cmp edx,4000
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je irqfull
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mov ebx,edi
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add ebx,0x10
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add ebx,edx
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mov [ebx],ax
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add edx,2
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mov [edi],edx
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add esi,4
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jmp irqnewread
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noirqword:
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irqfull:
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irqover:
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mov al,0x20 ; ready for next irq
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out 0x20,al
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pop ebx
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cmp ebx,7
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jbe noa0
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out 0xa0,al
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noa0:
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ret
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set_application_table_status:
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push eax
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mov eax,[0x3000]
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shl eax, 5
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add eax,0x3000+4
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mov eax,[eax]
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mov [application_table_status],eax
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pop eax
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ret
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clear_application_table_status:
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push eax
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mov eax,[0x3000]
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shl eax, 5
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add eax,0x3000+4
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mov eax,[eax]
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cmp eax,[application_table_status]
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jne apptsl1
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mov [application_table_status],0
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apptsl1:
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pop eax
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ret
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sys_resize_app_memory:
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; eax = 1 - resize
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; ebx = new amount of memory
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cmp eax,1
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jne .no_application_mem_resize
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jmp new_mem_resize ;resize for new type of processes
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.no_application_mem_resize:
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ret
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get_app_params:
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push eax
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cmp [0x90000+6],word '00'
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jne no_00_header
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mov eax,[0x90000+12]
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mov [app_start],eax
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mov eax,[0x90000+16]
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mov [app_i_end],eax
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mov eax,[0x90000+20]
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mov [app_mem],eax
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shr eax,1
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sub eax,0x10
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mov [app_esp],eax
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mov eax,[0x90000+24]
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mov [app_i_param],eax
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mov [app_i_icon],dword 0
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pop eax
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mov esi,1
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ret
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no_00_header:
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cmp [0x90000+6],word '01'
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jne no_01_header
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mov eax,[0x90000+12]
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mov [app_start],eax
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mov eax,[0x90000+16]
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mov [app_i_end],eax
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mov eax,[0x90000+20]
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mov [app_mem],eax
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mov eax,[0x90000+24]
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mov [app_esp],eax
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mov eax,[0x90000+28]
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mov [app_i_param],eax
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mov eax,[0x90000+32]
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mov [app_i_icon],eax
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pop eax
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mov esi,1
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ret
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no_01_header:
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pop eax
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mov esi,0
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ret
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start_application_fl:
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jmp new_start_application_fl
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;************************************************************************
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start_application_floppy:
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jmp new_start_application_floppy
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;********************************************************************
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start_application_hd:
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jmp new_start_application_hd
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uglobal
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new_process_place dd 0x0
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app_start dd 0x0
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app_i_end dd 0x0
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app_mem dd 0x0
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app_esp dd 0x0
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app_i_param dd 0x0
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app_i_icon dd 0x0
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app_mem_pos dd 0x0
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appl_path dd 0x0
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appl_path_size dd 0x0
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endg
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iglobal
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hd_app_string db 'HDAPP '
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process_loading db 'K : Process - loading ',13,10,0
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process_running db 'K : Process - done',13,10,0
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first_gdt_search dd 0x2
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endg
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sys_threads:
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; eax=1 create thread
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;
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; ebx=thread start
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; ecx=thread stack value
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;
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; on return : eax = pid
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jmp new_sys_threads
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iglobal
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process_terminating db 'K : Process - terminating',13,10,0
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process_terminated db 'K : Process - done',13,10,0
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endg
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terminate: ; terminate application
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push esi
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mov esi,process_terminating
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call sys_msg_board_str
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pop esi
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cli
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cmp [application_table_status],0
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je term9
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sti
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call change_task
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jmp terminate
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term9:
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call set_application_table_status
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mov eax,esi
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call dispose_app_cr3_table
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cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1
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jne fpu_ok_1
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mov [prev_user_of_fpu],1
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fpu_ok_1:
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mov [0xf400],byte 0 ; empty keyboard buffer
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mov [0xf500],byte 0 ; empty button buffer
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mov ecx,esi ; remove buttons
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bnewba2:
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mov edi,[0xfe88]
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mov eax,edi
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cld
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movzx ebx,word [edi]
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inc bx
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bnewba:
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dec bx
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jz bnmba
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add eax,0x10
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cmp cx,[eax]
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jnz bnewba
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pusha
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mov ecx,ebx
|
|
inc ecx
|
|
shl ecx,4
|
|
mov ebx,eax
|
|
add eax,0x10
|
|
call memmove
|
|
dec dword [edi]
|
|
popa
|
|
jmp bnewba2
|
|
bnmba:
|
|
|
|
pusha ; save window coordinates for window restoring
|
|
cld
|
|
shl esi,5
|
|
add esi,window_data
|
|
mov ax,[esi+0]
|
|
mov word [dlx],ax
|
|
mov bx,[esi+8]
|
|
add ax,bx
|
|
mov word [dlxe],ax
|
|
mov ax,[esi+4]
|
|
mov word [dly],ax
|
|
mov bx,[esi+12]
|
|
add ax,bx
|
|
mov word [dlye],ax
|
|
mov [esi+0],word 0
|
|
mov [esi+8],word 5
|
|
mov ax,[0xFE04]
|
|
mov [esi+4],ax
|
|
mov [esi+12],word 5
|
|
xor eax, eax
|
|
mov [esi+16],eax;dword 0
|
|
mov [esi+20],eax;dword 0
|
|
mov [esi+24],eax;dword 0
|
|
mov [esi+28],eax;dword 0
|
|
popa
|
|
|
|
pusha
|
|
mov edi,esi
|
|
shl edi,5
|
|
add edi,window_data
|
|
mov ecx,32/4
|
|
xor eax, eax
|
|
; cld
|
|
rep stosd
|
|
|
|
mov eax,[0xFE04] ; set window to start from maxy+1
|
|
add eax,2
|
|
|
|
mov edi,esi
|
|
shl edi,5
|
|
add edi,window_data
|
|
mov [edi+4],eax
|
|
|
|
popa
|
|
|
|
pusha
|
|
mov edi,esi
|
|
shl edi,5
|
|
add edi,draw_data
|
|
mov ecx,32/4
|
|
xor eax, eax
|
|
; cld
|
|
rep stosd
|
|
popa
|
|
|
|
pusha ; at 0x80000+
|
|
mov edi,esi
|
|
shl edi,8
|
|
add edi,0x80000
|
|
mov ecx,256/4
|
|
xor eax, eax
|
|
; cld
|
|
rep stosd
|
|
popa
|
|
|
|
pusha ; name to spaces
|
|
mov edi,esi
|
|
shl edi,8
|
|
add edi,0x80000
|
|
mov ecx,11
|
|
mov eax,' '
|
|
; cld
|
|
rep stosb
|
|
popa
|
|
|
|
pusha ; C000 --> C400
|
|
mov eax, 0xc000
|
|
mov esi, 0
|
|
nlc40:
|
|
add eax, 2
|
|
inc esi
|
|
cmp esi, [0x3004]
|
|
jae nlc41
|
|
movzx ecx, word [eax]
|
|
mov [0xC400 + ecx*2], si
|
|
jmp nlc40
|
|
nlc41:
|
|
popa
|
|
|
|
pusha ; remove hd1 reservation
|
|
mov edx,esi
|
|
shl edx, 5 ;imul edx,0x20
|
|
add edx,0x3000
|
|
mov edx,[edx+4]
|
|
cmp [hd1_status],edx
|
|
jne no_hd1_s_remove
|
|
mov [hd1_status],0
|
|
no_hd1_s_remove:
|
|
popa
|
|
|
|
pusha ; remove all irq reservations
|
|
mov edx,esi
|
|
shl edx, 5 ;imul edx,0x20
|
|
add edx,0x3000
|
|
mov edx,[edx+4]
|
|
mov edi,irq_owner
|
|
mov ecx,16
|
|
newirqfree:
|
|
cmp [edi],edx
|
|
jne nofreeirq
|
|
mov [edi],dword 0
|
|
nofreeirq:
|
|
add edi,4
|
|
loop newirqfree
|
|
popa
|
|
|
|
|
|
pusha ; remove all port reservations
|
|
|
|
mov edx,esi
|
|
shl edx, 5 ;imul edx,0x20
|
|
add edx,0x3000
|
|
mov edx,[edx+4]
|
|
|
|
rmpr0:
|
|
|
|
mov esi,[0x2d0000]
|
|
|
|
cmp esi,0
|
|
je rmpr9
|
|
|
|
rmpr3:
|
|
|
|
mov edi,esi
|
|
shl edi,4
|
|
add edi,0x2d0000
|
|
|
|
cmp edx,[edi]
|
|
je rmpr4
|
|
|
|
dec esi
|
|
jnz rmpr3
|
|
|
|
jmp rmpr9
|
|
|
|
rmpr4:
|
|
|
|
mov ecx,256
|
|
sub ecx,esi
|
|
shl ecx,4
|
|
|
|
mov esi,edi
|
|
add esi,16
|
|
cld
|
|
rep movsb
|
|
|
|
dec dword [0x2d0000]
|
|
|
|
jmp rmpr0
|
|
|
|
rmpr9:
|
|
|
|
popa
|
|
mov edi,esi ; do not run this process slot
|
|
shl edi, 5
|
|
mov [edi+0x300A],byte 9
|
|
; call systest
|
|
sti ; .. and life goes on
|
|
|
|
; movzx eax,word [dlx]
|
|
; movzx ebx,word [dly]
|
|
; movzx ecx,word [dlxe]
|
|
; movzx edx,word [dlye]
|
|
call calculatescreen
|
|
|
|
xor eax, eax
|
|
xor esi, esi
|
|
call redrawscreen
|
|
|
|
mov [0xfff4],byte 0 ; no mouse background
|
|
mov [0xfff5],byte 0 ; draw mouse
|
|
|
|
mov [application_table_status],0
|
|
|
|
mov esi,process_terminated
|
|
call sys_msg_board_str
|
|
|
|
;* start code - fix error redraw for terminate (2) - Mario79
|
|
; cmp [draw_present],1
|
|
; je no_draw_background_temp
|
|
; mov [0xfff0],byte 1
|
|
;no_draw_background_temp:
|
|
; mov [draw_present],0
|
|
ret
|
|
;draw_present db 0
|
|
;* end code - fix error redraw for terminate (2) - Mario79
|
|
|
|
iglobal
|
|
boot_sched_1 db 'Building gdt tss pointer',0
|
|
boot_sched_2 db 'Building IDT table',0
|
|
endg
|
|
|
|
|
|
build_scheduler:
|
|
|
|
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
|
|
|