forked from KolibriOS/kolibrios
3eda462807
Programs: fasm updated to 1.67.14, small fixes in desktop, stackcfg, calc, board, pipes, freecell, big cleanup of unused programs, added some applications from 0.6.3.0 distr... git-svn-id: svn://kolibrios.org@205 a494cfbc-eb01-0410-851d-a64ba20cac60
4826 lines
81 KiB
NASM
4826 lines
81 KiB
NASM
format binary
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use32
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db 'MENUET01'
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dd 1
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dd start
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dd i_end
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dd used_mem
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dd used_mem
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dd i_param
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dd 0
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; GUI ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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data_width equ 80
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data_x_pos equ 12
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data_x_size equ data_width*6
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title_x_pos equ 30
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title_y_pos equ 32
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title_y_size equ 10
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registers_x_pos equ data_x_pos
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registers_y_pos equ (title_y_pos + title_y_size)
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registers_y_size equ 30
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dump_y_pos equ (registers_y_pos + registers_y_size + 5)
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dump_height equ 4
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dump_y_size equ (dump_height*10)
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disasm_y_pos equ (dump_y_pos + dump_y_size + 4)
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disasm_height equ 16
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disasm_y_size equ (disasm_height*10)
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messages_width equ data_width
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messages_height equ 12
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messages_x_pos equ data_x_pos
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messages_y_pos equ (disasm_y_pos + disasm_y_size + 4)
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messages_x_size equ messages_width*6
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messages_y_size equ messages_height*10
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cmdline_width equ data_width
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cmdline_x_pos equ data_x_pos
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cmdline_y_pos equ (messages_y_pos + messages_y_size + 10)
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cmdline_x_size equ messages_x_size
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cmdline_y_size equ 10
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wnd_x_size equ (data_x_pos + messages_x_size + data_x_pos)
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wnd_y_size equ (cmdline_y_pos + cmdline_y_size + data_x_pos)
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start:
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mov edi, messages
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mov ecx, messages_width*messages_height
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mov al, ' '
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rep stosb
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xor eax, eax
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mov [messages_pos], eax
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mov [cmdline_len], eax
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mov [cmdline_pos], eax
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mov edi, needzerostart
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mov ecx, (needzeroend-needzerostart+3)/4
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rep stosd
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mov esi, begin_str
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call put_message_nodraw
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; set event mask - default events and debugging events
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push 40
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pop eax
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mov ebx, 0x107
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int 40h
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; set debug messages buffer
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mov ecx, dbgbufsize
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mov dword [ecx], 256
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xor ebx, ebx
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mov [ecx+4], ebx
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mov al, 69
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int 40h
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mov esi, i_param
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call skip_spaces
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test al, al
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jz dodraw
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push esi
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call draw_window
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pop esi
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call OnLoadInit
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jmp waitevent
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dodraw:
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call draw_window
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waitevent:
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push 10
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pop eax
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int 40h
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cmp al, 9
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jz debugmsg
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dec eax
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jz dodraw
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dec eax
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jz keypressed
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dec eax
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jnz waitevent
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; button pressed - we have only one button (close)
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push -1
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pop eax
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int 40h
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keypressed:
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mov al, 2
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int 40h
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shr eax, 8
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cmp al, 8
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jz .backspace
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cmp al, 0xB0
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jz .left
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cmp al, 0xB3
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jz .right
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cmp al, 0x0D
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jz .enter
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cmp al, 0xB6
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jz .del
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cmp al, 0xB4
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jz .home
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cmp al, 0xB5
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jz .end
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cmp al, 0xB1
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jz .down
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cmp al, 0xB2
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jz .up
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cmp al, 0xD8
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jz CtrlF7
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cmp al, 0xD9
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jz CtrlF8
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cmp [cmdline_len], cmdline_width
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jae waitevent
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push eax
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call clear_cmdline_end
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pop eax
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mov edi, cmdline
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mov ecx, [cmdline_len]
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add edi, ecx
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lea esi, [edi-1]
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sub ecx, [cmdline_pos]
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std
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rep movsb
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cld
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stosb
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inc [cmdline_len]
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call draw_cmdline_end
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inc [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.backspace:
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cmp [cmdline_pos], 0
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jz waitevent
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dec [cmdline_pos]
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.delchar:
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call clear_cmdline_end
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mov edi, [cmdline_pos]
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dec [cmdline_len]
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mov ecx, [cmdline_len]
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sub ecx, edi
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add edi, cmdline
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lea esi, [edi+1]
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rep movsb
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call draw_cmdline_end
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call draw_cursor
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jmp waitevent
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.del:
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mov eax, [cmdline_pos]
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cmp eax, [cmdline_len]
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jae waitevent
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jmp .delchar
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.left:
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cmp [cmdline_pos], 0
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jz waitevent
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call hide_cursor
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dec [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.right:
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mov eax, [cmdline_pos]
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cmp eax, [cmdline_len]
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jae waitevent
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call hide_cursor
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inc [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.home:
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call hide_cursor
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and [cmdline_pos], 0
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call draw_cursor
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jmp waitevent
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.end:
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call hide_cursor
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mov eax, [cmdline_len]
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mov [cmdline_pos], eax
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call draw_cursor
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.up:
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.down:
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jmp waitevent
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.enter:
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mov ecx, [cmdline_len]
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test ecx, ecx
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jz waitevent
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mov esi, cmdline
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mov byte [esi+ecx], 0
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and [cmdline_pos], 0
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push esi
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call clear_cmdline_end
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call draw_cursor
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pop esi
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and [cmdline_len], 0
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; skip leading spaces
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call skip_spaces
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cmp al, 0
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jz waitevent
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; now esi points to command
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push esi
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mov esi, prompt
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call put_message_nodraw
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pop esi
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push esi
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call put_message_nodraw
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z1: mov esi, newline
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call put_message
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pop esi
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push esi
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call get_arg
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mov [curarg], esi
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pop edi
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mov esi, commands
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call find_cmd
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mov eax, aUnknownCommand
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jc .x11
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; check command requirements
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; flags field:
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; &1: command may be called without parameters
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; &2: command may be called with parameters
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; &4: command may be called without loaded program
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; &8: command may be called with loaded program
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mov eax, [esi+8]
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mov ecx, [curarg]
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cmp byte [ecx], 0
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jz .noargs
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test byte [esi+16], 2
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jz .x11
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jmp @f
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.noargs:
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test byte [esi+16], 1
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jz .x11
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@@:
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cmp [debuggee_pid], 0
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jz .nodebuggee
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mov eax, aAlreadyLoaded
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test byte [esi+16], 8
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jz .x11
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jmp .x9
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.nodebuggee:
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mov eax, need_debuggee
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test byte [esi+16], 4
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jnz .x9
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.x11:
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xchg esi, eax
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call put_message
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.x10:
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jmp waitevent
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.x9:
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call dword [esi+4]
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jmp .x10
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find_cmd:
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; all commands are case-insensitive
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push edi
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.x4:
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mov al, [edi]
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cmp al, 0
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jz .x5
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cmp al, 'A'
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jb @f
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cmp al, 'Z'
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ja @f
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or al, 20h
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@@:
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stosb
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jmp .x4
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.x5:
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; find command
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pop edi
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.x6:
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cmp dword [esi], 0
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jz .x7
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push esi
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mov esi, [esi]
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lodsb
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movzx ecx, al
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push edi
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repz cmpsb
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pop edi
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pop esi
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jz .x8
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add esi, 17
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jmp .x6
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.x7:
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stc
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.x8:
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ret
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get_arg:
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lodsb
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cmp al, ' '
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ja get_arg
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mov byte [esi-1], 0
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cmp al, 0
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jnz skip_spaces
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dec esi
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skip_spaces:
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lodsb
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cmp al, 0
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jz @f
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cmp al, ' '
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jbe skip_spaces
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@@: dec esi
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ret
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clear_cmdline_end:
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mov ebx, [cmdline_pos]
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mov ecx, [cmdline_len]
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sub ecx, ebx
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push 13
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pop eax
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imul ebx, 6
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imul ecx, 6
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inc ecx
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add ebx, cmdline_x_pos
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shl ebx, 16
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or ebx, ecx
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mov ecx, cmdline_y_pos*10000h + cmdline_y_size
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mov edx, 0xFFFFFF
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int 40h
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ret
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draw_cmdline:
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xor ebx, ebx
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jmp @f
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draw_cmdline_end:
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mov ebx, [cmdline_pos]
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@@:
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mov esi, [cmdline_len]
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sub esi, ebx
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push 4
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pop eax
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xor ecx, ecx
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lea edx, [cmdline+ebx]
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imul ebx, 6
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add ebx, cmdline_x_pos
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shl ebx, 16
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or ebx, cmdline_y_pos+1
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int 40h
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ret
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put_message_nodraw:
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; in: esi->ASCIZ message
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mov edx, [messages_pos]
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.m:
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lea edi, [messages+edx]
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.l:
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lodsb
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cmp al, 0
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jz .done
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call test_scroll
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cmp al, 10
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jz .newline
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cmp al, '%'
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jnz @f
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cmp dword [esp], z1
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jnz .format
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@@:
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stosb
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inc edx
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jmp .l
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.newline:
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push edx
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mov ecx, messages_width
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xor eax, eax
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xchg eax, edx
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div ecx
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xchg eax, edx
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pop edx
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test eax, eax
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jz .m
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sub edx, eax
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add edx, ecx
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jmp .m
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.done:
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mov [messages_pos], edx
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ret
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.format:
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; at moment all format specs must be %<digit>X
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lodsb ; get <digit>
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sub al, '0'
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movzx ecx, al
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lodsb
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pop eax
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pop ebp
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push eax
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; write number in ebp with ecx digits
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dec ecx
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shl ecx, 2
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.writenibble:
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push ecx
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call test_scroll
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pop ecx
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mov eax, ebp
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shr eax, cl
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and al, 0xF
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cmp al, 10
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sbb al, 69h
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das
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stosb
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inc edx
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sub ecx, 4
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jns .writenibble
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jmp .l
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test_scroll:
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cmp edx, messages_width*messages_height
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jnz .ret
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push esi
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mov edi, messages
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lea esi, [edi+messages_width]
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mov ecx, (messages_height-1)*messages_width/4
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rep movsd
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push eax
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mov al, ' '
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push edi
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push messages_width
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pop ecx
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sub edx, ecx
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rep stosb
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pop edi
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pop eax
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pop esi
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.ret: ret
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put_message:
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call put_message_nodraw
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draw_messages:
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push 13
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pop eax
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mov edx, 0xFFFFFF
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mov ebx, messages_x_pos*10000h+messages_x_size
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mov ecx, messages_y_pos*10000h+messages_y_size
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int 40h
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mov edx, messages
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push messages_width
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pop esi
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xor ecx, ecx
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mov al, 4
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mov ebx, messages_x_pos*10000h+messages_y_pos
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@@:
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int 40h
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add edx, esi
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add ebx, 10
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cmp edx, messages+messages_width*messages_height
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jb @b
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ret
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draw_cursor:
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push 38
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pop eax
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mov ecx, cmdline_y_pos*10001h+cmdline_y_size-1
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mov ebx, [cmdline_pos]
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imul ebx, 6
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add ebx, cmdline_x_pos
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mov edx, ebx
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shl ebx, 16
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or ebx, edx
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xor edx, edx
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int 40h
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ret
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hide_cursor:
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mov ebx, [cmdline_pos]
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push 13
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pop eax
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imul ebx, 6
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add ebx, cmdline_x_pos
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shl ebx, 16
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inc ebx
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mov ecx, cmdline_y_pos*10000h + cmdline_y_size
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mov edx, 0xFFFFFF
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int 40h
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mov ebx, [cmdline_pos]
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cmp ebx, [cmdline_len]
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jae .ret
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mov al, 4
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xor ecx, ecx
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lea edx, [cmdline+ebx]
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imul ebx, 6
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add ebx, cmdline_x_pos
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shl ebx, 16
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or ebx, cmdline_y_pos+1
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push 1
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pop esi
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int 40h
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.ret:
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ret
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redraw_title:
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push 13
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pop eax
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mov edx, 0xFFFFFF
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mov ebx, title_x_pos*10000h + data_x_pos+data_x_size-title_x_pos
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mov ecx, title_y_pos*10000h + title_y_size
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int 40h
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draw_title:
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mov al, 38
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mov ebx, (data_x_pos-2)*10000h + title_x_pos-5
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mov ecx, (title_y_pos+5)*10001h
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xor edx, edx
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int 40h
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push NoPrgLoaded_len
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pop esi
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cmp [debuggee_pid], 0
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jz @f
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mov esi, [prgname_len]
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@@: imul ebx, esi, 6
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add ebx, title_x_pos+4
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shl ebx, 16
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mov bx, data_x_pos+data_x_size-10-5-6*7
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cmp [bSuspended], 0
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jz @f
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add ebx, 6
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@@:
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int 40h
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mov ebx, (data_x_pos+data_x_size-10+4)*0x10000 + data_x_pos+data_x_size+2
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int 40h
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mov al, 4
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mov ebx, title_x_pos*10000h+title_y_pos
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xor ecx, ecx
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mov edx, NoPrgLoaded_str
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cmp [debuggee_pid], 0
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jz @f
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mov edx, [prgname_ptr]
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@@:
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int 40h
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cmp [debuggee_pid], 0
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jz .nodebuggee
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mov ebx, (data_x_pos+data_x_size-10-6*7)*10000h + title_y_pos
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mov edx, aRunning
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push 7
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pop esi
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cmp [bSuspended], 0
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jz @f
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add ebx, 6*10000h
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mov edx, aPaused
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dec esi
|
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@@:
|
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int 40h
|
|
ret
|
|
.nodebuggee:
|
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mov al, 38
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mov ebx, (data_x_pos+data_x_size-10-6*7-5)*0x10000 + data_x_pos+data_x_size+2
|
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mov ecx, (title_y_pos+5)*10001h
|
|
xor edx, edx
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|
jmp @b
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|
|
|
draw_register:
|
|
; in: esi->value, edx->string, ecx=string len, ebx=coord
|
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push edx
|
|
push ecx
|
|
push esi
|
|
mov eax, esi
|
|
mov esi, ecx
|
|
; color
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|
mov ecx, 808080h
|
|
cmp [debuggee_pid], 0
|
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jz .cd
|
|
cmp [bSuspended], 0
|
|
jz .cd
|
|
xor ecx, ecx
|
|
mov edi, [eax]
|
|
cmp dword [eax+oldcontext-context], edi
|
|
jz .cd
|
|
mov ecx, 0x00AA00
|
|
.cd:
|
|
push 4
|
|
pop eax
|
|
int 40h
|
|
imul esi, 60000h
|
|
lea edx, [ebx+esi]
|
|
mov al, 47
|
|
mov ebx, 80101h
|
|
mov esi, ecx
|
|
pop ecx
|
|
int 40h
|
|
lea ebx, [edx+60000h*18]
|
|
mov esi, ecx
|
|
pop ecx
|
|
pop edx
|
|
add edx, ecx
|
|
ret
|
|
draw_flag:
|
|
movzx edi, byte [edx+7]
|
|
bt [_eflags], edi
|
|
jc .on
|
|
or byte [edx], 20h
|
|
jmp .onoff
|
|
.on:
|
|
and byte [edx], not 20h
|
|
.onoff:
|
|
mov ecx, 808080h
|
|
cmp [debuggee_pid], 0
|
|
jz .doit
|
|
cmp [bSuspended], 0
|
|
jz .doit
|
|
xor ecx, ecx
|
|
bt [_eflags], edi
|
|
lahf
|
|
bt dword [_eflags + oldcontext - context], edi
|
|
rcl ah, 1
|
|
test ah, 3
|
|
jp .doit
|
|
mov ecx, 0x00AA00
|
|
.doit:
|
|
mov ah, 0
|
|
int 40h
|
|
ret
|
|
|
|
redraw_registers:
|
|
push 13
|
|
pop eax
|
|
mov edx, 0xFFFFFF
|
|
mov ebx, data_x_pos*10000h + data_x_size
|
|
mov ecx, registers_y_pos*10000h + registers_y_size
|
|
int 40h
|
|
draw_registers:
|
|
mov esi, _eax
|
|
push 4
|
|
pop ecx
|
|
mov edx, regs_strs
|
|
mov ebx, registers_x_pos*10000h+registers_y_pos
|
|
call draw_register
|
|
add esi, _ebx-_eax
|
|
call draw_register
|
|
add esi, _ecx-_ebx
|
|
call draw_register
|
|
add esi, _edx-_ecx
|
|
call draw_register
|
|
mov ebx, registers_x_pos*10000h+registers_y_pos+10
|
|
add esi, _esi-_edx
|
|
call draw_register
|
|
add esi, _edi-_esi
|
|
call draw_register
|
|
add esi, _ebp-_edi
|
|
call draw_register
|
|
add esi, _esp-_ebp
|
|
call draw_register
|
|
mov ebx, registers_x_pos*10000h+registers_y_pos+20
|
|
add esi, _eip-_esp
|
|
call draw_register
|
|
mov cl, 7
|
|
add esi, _eflags-_eip
|
|
call draw_register
|
|
mov al, 4
|
|
mov ecx, 808080h
|
|
cmp [debuggee_pid], 0
|
|
jz @f
|
|
cmp [bSuspended], 0
|
|
jz @f
|
|
xor ecx, ecx
|
|
@@:
|
|
mov edx, aColon
|
|
xor esi, esi
|
|
inc esi
|
|
mov ebx, (registers_x_pos+37*6)*10000h + registers_y_pos+20
|
|
int 40h
|
|
mov edx, flags
|
|
@@:
|
|
add ebx, 2*6*10000h
|
|
call draw_flag
|
|
inc edx
|
|
cmp dl, flags_bits and 0xFF
|
|
jnz @b
|
|
ret
|
|
|
|
redraw_dump:
|
|
push 13
|
|
pop eax
|
|
mov edx, 0xFFFFFF
|
|
mov ebx, data_x_pos*10000h + data_x_size
|
|
mov ecx, dump_y_pos*10000h + dump_y_size
|
|
int 40h
|
|
draw_dump:
|
|
; addresses
|
|
mov al, 47
|
|
mov ebx, 80100h
|
|
mov edx, data_x_pos*10000h + dump_y_pos
|
|
mov ecx, [dumppos]
|
|
mov esi, 808080h
|
|
cmp [debuggee_pid], 0
|
|
jz @f
|
|
cmp [bSuspended], 0
|
|
jz @f
|
|
xor esi, esi
|
|
@@:
|
|
int 40h
|
|
add ecx, 10h
|
|
add edx, 10
|
|
cmp dl, dump_y_pos + dump_y_size
|
|
jb @b
|
|
; hex dump of data
|
|
mov ebx, 20101h
|
|
mov ecx, dumpdata
|
|
push ecx
|
|
xor edi, edi
|
|
mov edx, (data_x_pos+12*6)*10000h + dump_y_pos
|
|
cmp [dumpread], edi
|
|
jz .hexdumpdone1
|
|
.hexdumploop1:
|
|
int 40h
|
|
add edx, 3*6*10000h
|
|
inc ecx
|
|
inc edi
|
|
test edi, 15
|
|
jz .16
|
|
test edi, 7
|
|
jnz @f
|
|
add edx, 2*6*10000h - 10 + 6*(3*10h+2)*10000h
|
|
.16:
|
|
add edx, 10 - 6*(3*10h+2)*10000h
|
|
@@:
|
|
cmp edi, [dumpread]
|
|
jb .hexdumploop1
|
|
.hexdumpdone1:
|
|
mov al, 4
|
|
mov ecx, esi
|
|
mov ebx, edx
|
|
push 2
|
|
pop esi
|
|
mov edx, aQuests
|
|
.hexdumploop2:
|
|
cmp edi, dump_height*10h
|
|
jae .hexdumpdone2
|
|
int 40h
|
|
add ebx, 3*6*10000h
|
|
inc edi
|
|
test edi, 15
|
|
jz .16x
|
|
test edi, 7
|
|
jnz .hexdumploop2
|
|
add ebx, 2*6*10000h - 10 + 6*(3*10h+2)*10000h
|
|
.16x:
|
|
add ebx, 10 - 6*(3*10h+2)*10000h
|
|
jmp .hexdumploop2
|
|
.hexdumpdone2:
|
|
dec esi
|
|
; colon, minus signs
|
|
mov ebx, (data_x_pos+8*6)*10000h + dump_y_pos
|
|
mov edx, aColon
|
|
@@:
|
|
int 40h
|
|
add ebx, 10
|
|
cmp bl, dump_y_pos+dump_height*10
|
|
jb @b
|
|
mov ebx, (data_x_pos+(12+3*8)*6)*10000h + dump_y_pos
|
|
mov edx, aMinus
|
|
@@:
|
|
int 40h
|
|
add ebx, 10
|
|
cmp bl, dump_y_pos+dump_height*10
|
|
jb @b
|
|
; ASCII data
|
|
mov ebx, (data_x_pos+(12+3*10h+2+2)*6)*10000h + dump_y_pos
|
|
mov edi, dump_height*10h
|
|
pop edx
|
|
.asciiloop:
|
|
push edx
|
|
cmp byte [edx], 20h
|
|
jae @f
|
|
mov edx, aPoint
|
|
@@:
|
|
int 40h
|
|
pop edx
|
|
inc edx
|
|
add ebx, 6*10000h
|
|
dec edi
|
|
jz .asciidone
|
|
test edi, 15
|
|
jnz .asciiloop
|
|
add ebx, 10 - 6*10h*10000h
|
|
jmp .asciiloop
|
|
.asciidone:
|
|
ret
|
|
|
|
redraw_disasm:
|
|
push 13
|
|
pop eax
|
|
mov edx, 0xFFFFFF
|
|
mov ebx, data_x_pos*10000h + data_x_size
|
|
mov ecx, (disasm_y_pos-1)*10000h + (disasm_y_size+1)
|
|
int 40h
|
|
draw_disasm:
|
|
mov eax, [disasm_start_pos]
|
|
mov [disasm_cur_pos], eax
|
|
and [disasm_cur_str], 0
|
|
.loop:
|
|
push [disasm_cur_pos]
|
|
call disasm_instr
|
|
pop ebp
|
|
jc .loopend
|
|
xor esi, esi ; default color: black
|
|
mov ebx, data_x_pos*10000h + data_x_size
|
|
mov ecx, [disasm_cur_str]
|
|
imul ecx, 10*10000h
|
|
add ecx, (disasm_y_pos-1)*10000h + 10
|
|
mov eax, ebp
|
|
pushad
|
|
call find_enabled_breakpoint
|
|
popad
|
|
jnz .nored
|
|
push 13
|
|
pop eax
|
|
mov edx, 0xFF0000
|
|
int 40h
|
|
.nored:
|
|
mov eax, [_eip]
|
|
cmp eax, ebp
|
|
jnz .noblue
|
|
push 13
|
|
pop eax
|
|
mov edx, 0x0000FF
|
|
int 40h
|
|
mov esi, 0xFFFFFF ; on blue bgr, use white color
|
|
.noblue:
|
|
push 47
|
|
pop eax
|
|
mov ebx, 80100h
|
|
mov edx, [disasm_cur_str]
|
|
imul edx, 10
|
|
add edx, data_x_pos*10000h + disasm_y_pos
|
|
mov ecx, ebp
|
|
int 40h
|
|
mov al, 4
|
|
lea ebx, [edx+8*6*10000h]
|
|
mov ecx, esi
|
|
push 1
|
|
pop esi
|
|
mov edx, aColon
|
|
int 40h
|
|
push 9
|
|
pop edi
|
|
lea edx, [ebx+2*6*10000h]
|
|
mov esi, ecx
|
|
mov al, 47
|
|
mov ebx, 20101h
|
|
mov ecx, ebp
|
|
sub ecx, [disasm_start_pos]
|
|
add ecx, disasm_buffer
|
|
.drawhex:
|
|
int 40h
|
|
add edx, 6*3*10000h
|
|
inc ecx
|
|
inc ebp
|
|
cmp ebp, [disasm_cur_pos]
|
|
jae .hexdone
|
|
dec edi
|
|
jnz .drawhex
|
|
push esi
|
|
mov esi, [disasm_cur_pos]
|
|
dec esi
|
|
cmp esi, ebp
|
|
pop esi
|
|
jbe .drawhex
|
|
mov al, 4
|
|
lea ebx, [edx-6*10000h]
|
|
mov ecx, esi
|
|
push 3
|
|
pop esi
|
|
mov edx, aDots
|
|
int 40h
|
|
mov esi, ecx
|
|
.hexdone:
|
|
xor eax, eax
|
|
mov edi, disasm_string
|
|
mov edx, edi
|
|
or ecx, -1
|
|
repnz scasb
|
|
not ecx
|
|
dec ecx
|
|
xchg ecx, esi
|
|
mov ebx, [disasm_cur_str]
|
|
imul ebx, 10
|
|
add ebx, (data_x_pos+6*40)*10000h+disasm_y_pos
|
|
mov al, 4
|
|
int 40h
|
|
inc [disasm_cur_str]
|
|
cmp [disasm_cur_str], disasm_height
|
|
jb .loop
|
|
.loopend:
|
|
ret
|
|
|
|
update_disasm_eip:
|
|
; test if instruction at eip is showed
|
|
mov ecx, disasm_height
|
|
mov eax, [disasm_start_pos]
|
|
mov [disasm_cur_pos], eax
|
|
@@:
|
|
mov eax, [_eip]
|
|
cmp [disasm_cur_pos], eax
|
|
jz redraw_disasm
|
|
push ecx
|
|
call disasm_instr
|
|
pop ecx
|
|
jc @f
|
|
loop @b
|
|
@@:
|
|
update_disasm_eip_force:
|
|
mov eax, [_eip]
|
|
mov [disasm_start_pos], eax
|
|
update_disasm:
|
|
cmp [debuggee_pid], 0
|
|
jz .no
|
|
push 69
|
|
pop eax
|
|
push 6
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
mov edi, disasm_buffer
|
|
mov edx, 256
|
|
mov esi, [disasm_start_pos]
|
|
int 40h
|
|
cmp eax, -1
|
|
jnz @f
|
|
mov esi, read_mem_err
|
|
call put_message
|
|
.no:
|
|
xor eax, eax
|
|
@@:
|
|
mov [disasm_buf_size], eax
|
|
call restore_from_breaks
|
|
jmp redraw_disasm
|
|
|
|
draw_window:
|
|
; start redraw
|
|
push 12
|
|
pop eax
|
|
push 1
|
|
pop ebx
|
|
int 40h
|
|
; define window
|
|
xor eax, eax
|
|
mov ebx, wnd_x_size
|
|
mov ecx, wnd_y_size
|
|
mov edx, 3FFFFFFh
|
|
int 40h
|
|
; caption
|
|
mov al, 4
|
|
mov ecx, 0xFFFFFF
|
|
mov ebx, 80008h
|
|
mov edx, caption_str
|
|
push caption_len
|
|
pop esi
|
|
int 40h
|
|
; messages frame
|
|
mov al, 38
|
|
mov ebx, (messages_x_pos-2)*10000h + (messages_x_pos+messages_x_size+2)
|
|
push ebx
|
|
mov ecx, (messages_y_pos-2)*10001h
|
|
xor edx, edx
|
|
int 40h
|
|
mov ecx, (messages_y_pos+messages_y_size+2)*10001h
|
|
int 40h
|
|
mov ebx, (messages_x_pos-2)*10001h
|
|
push ebx
|
|
mov ecx, (messages_y_pos-2)*10000h + (messages_y_pos+messages_y_size+2)
|
|
int 40h
|
|
mov ebx, (messages_x_pos+messages_x_size+2)*10001h
|
|
push ebx
|
|
int 40h
|
|
; command line frame
|
|
mov ecx, (cmdline_y_pos-2)*10000h + (cmdline_y_pos+cmdline_y_size+2)
|
|
pop ebx
|
|
int 40h
|
|
pop ebx
|
|
int 40h
|
|
pop ebx
|
|
mov ecx, (cmdline_y_pos+cmdline_y_size+2)*10001h
|
|
int 40h
|
|
mov ecx, (cmdline_y_pos-2)*10001h
|
|
int 40h
|
|
; messages
|
|
call draw_messages
|
|
; command line & cursor
|
|
call draw_cmdline
|
|
call draw_cursor
|
|
; title & registers & dump & disasm
|
|
mov al, 38
|
|
mov ebx, (data_x_pos-2)*10001h
|
|
mov ecx, (title_y_pos+5)*10000h + (messages_y_pos-2)
|
|
int 40h
|
|
mov ebx, (data_x_pos+data_x_size+2)*10001h
|
|
int 40h
|
|
mov ebx, (data_x_pos-2)*10000h + (data_x_pos+data_x_size+2)
|
|
mov ecx, (dump_y_pos-3)*10001h
|
|
int 40h
|
|
mov ecx, (disasm_y_pos-4)*10001h
|
|
int 40h
|
|
call draw_title
|
|
call draw_registers
|
|
call draw_dump
|
|
call draw_disasm
|
|
; end redraw
|
|
mov al, 12
|
|
push 2
|
|
pop ebx
|
|
int 40h
|
|
ret
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; DEBUGGING ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
OnHelp:
|
|
mov esi, help_msg
|
|
mov edi, [curarg]
|
|
cmp byte [edi], 0
|
|
jz .x
|
|
mov esi, help_groups
|
|
call find_cmd
|
|
jc .nocmd
|
|
mov esi, [esi+12]
|
|
.x:
|
|
jmp put_message
|
|
.nocmd:
|
|
mov esi, aUnknownCommand
|
|
jmp .x
|
|
|
|
OnQuit:
|
|
xor eax, eax
|
|
dec eax
|
|
int 40h
|
|
|
|
get_new_context:
|
|
mov esi, context
|
|
mov edi, oldcontext
|
|
mov ecx, 10
|
|
rep movsd
|
|
get_context:
|
|
push 1
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
mov ecx, [debuggee_pid]
|
|
mov esi, context
|
|
push 28h
|
|
pop edx
|
|
int 40h
|
|
ret
|
|
set_context:
|
|
push 2
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
mov ecx, [debuggee_pid]
|
|
mov esi, context
|
|
push 28h
|
|
pop edx
|
|
int 40h
|
|
ret
|
|
|
|
get_dump:
|
|
mov edi, dumpdata
|
|
mov esi, [edi-4]
|
|
mov edx, dump_height*10h
|
|
mov ecx, edx
|
|
xor eax, eax
|
|
push edi
|
|
rep stosb
|
|
pop edi
|
|
mov ecx, [debuggee_pid]
|
|
mov al, 69
|
|
push 6
|
|
pop ebx
|
|
int 40h
|
|
cmp eax, -1
|
|
jnz @f
|
|
mov esi, read_mem_err
|
|
call put_message
|
|
xor eax, eax
|
|
@@:
|
|
mov [edi-8], eax
|
|
; call restore_from_breaks
|
|
; ret
|
|
restore_from_breaks:
|
|
; in: edi=buffer,eax=size,esi=address
|
|
mov ebx, breakpoints
|
|
@@:
|
|
test byte [ebx+4], 1
|
|
jz .cont ; ignore invalid
|
|
test byte [ebx+4], 2 or 8
|
|
jnz .cont ; ignore disabled and memory breaks
|
|
mov ecx, [ebx]
|
|
sub ecx, esi
|
|
cmp ecx, eax
|
|
jae .cont
|
|
mov dl, [ebx+5]
|
|
mov [edi+ecx], dl
|
|
.cont:
|
|
add ebx, 6
|
|
cmp ebx, breakpoints+breakpoints_n*6
|
|
jb @b
|
|
ret
|
|
|
|
OnLoad:
|
|
mov esi, [curarg]
|
|
OnLoadInit:
|
|
mov edi, loadname
|
|
or [prgname_len], -1
|
|
mov [prgname_ptr], edi
|
|
.copyname:
|
|
lodsb
|
|
stosb
|
|
inc [prgname_len]
|
|
cmp al, '/'
|
|
jnz @f
|
|
or [prgname_len], -1
|
|
mov [prgname_ptr], edi
|
|
@@:
|
|
cmp al, ' '
|
|
ja .copyname
|
|
mov byte [edi-1], 0
|
|
and [load_params], 0
|
|
dec esi
|
|
call skip_spaces
|
|
cmp al, 0
|
|
jz @f
|
|
mov [load_params], esi
|
|
@@:
|
|
and [dumppos], 0
|
|
do_reload:
|
|
push 18
|
|
pop eax
|
|
push 7
|
|
pop ebx
|
|
int 40h
|
|
mov [dbgwnd], eax
|
|
xchg ecx, eax
|
|
push 70
|
|
pop eax
|
|
mov ebx, fn70_load_block
|
|
int 40h
|
|
test eax, eax
|
|
jns .load_ok
|
|
.load_err:
|
|
push eax
|
|
mov esi, load_err_msg
|
|
call put_message
|
|
pop eax
|
|
not eax
|
|
cmp eax, 0x20
|
|
jae .unk_err
|
|
mov esi, [load_err_msgs+eax*4]
|
|
test esi, esi
|
|
jnz put_message
|
|
.unk_err:
|
|
mov esi, unk_err_msg
|
|
inc eax
|
|
push eax
|
|
call put_message_nodraw
|
|
jmp draw_messages
|
|
.load_ok:
|
|
mov [debuggee_pid], eax
|
|
mov [bSuspended], 1
|
|
push ecx
|
|
call get_context
|
|
mov edi, oldcontext
|
|
mov ecx, 10
|
|
rep movsd
|
|
; activate debugger window
|
|
pop ecx
|
|
mov bl, 3
|
|
push 18
|
|
pop eax
|
|
int 40h
|
|
call redraw_title
|
|
call redraw_registers
|
|
call get_dump
|
|
call redraw_dump
|
|
call update_disasm_eip_force
|
|
mov esi, load_succ_msg
|
|
push [debuggee_pid]
|
|
call put_message_nodraw
|
|
call draw_messages
|
|
; now test for packed progs
|
|
cmp [disasm_buf_size], 100h
|
|
jz @f
|
|
ret
|
|
@@:
|
|
mov esi, mxp_nrv_sig
|
|
mov ebp, disasm_buffer
|
|
mov edi, ebp
|
|
push 3
|
|
pop ecx
|
|
repz cmpsb
|
|
jnz .not_mxp_nrv
|
|
cmpsb
|
|
mov cl, mxp_nrv_sig_size-4
|
|
repz cmpsb
|
|
mov esi, mxp_nrv_name
|
|
jz .packed
|
|
.not_mxp_nrv:
|
|
mov esi, mxp_sig
|
|
mov edi, ebp
|
|
mov cl, mxp_sig_size
|
|
repz cmpsb
|
|
mov esi, mxp_name
|
|
jz .packed
|
|
.not_mxp:
|
|
mov esi, mxp_lzo_sig1
|
|
mov edi, ebp
|
|
mov cl, mxp_lzo_sig1_size
|
|
repz cmpsb
|
|
mov esi, mxp_lzo_name
|
|
jz .packed
|
|
mov esi, mxp_lzo_sig2
|
|
mov edi, ebp
|
|
mov cl, 8
|
|
repz cmpsb
|
|
jnz .not_mxp_lzo
|
|
cmpsb
|
|
mov cl, mxp_lzo_sig2_size - 9
|
|
repz cmpsb
|
|
mov esi, mxp_lzo_name
|
|
jz .packed
|
|
.not_mxp_lzo:
|
|
mov esi, mtappack_name
|
|
cmp dword [ebp], 0xBF5E246A
|
|
jnz .not_mtappack
|
|
cmp dword [ebp+8], 0xEC4E8B57
|
|
jnz .not_mtappack1
|
|
cmp dword [ebp+12], 0x8D5EA4F3
|
|
jnz .not_mtappack1
|
|
cmp byte [ebp+12h], 0xE9
|
|
jz .packed
|
|
.not_mtappack1:
|
|
cmp word [ebp+8], 0xB957
|
|
jnz .not_mtappack
|
|
cmp dword [ebp+14], 0x575EA4F3
|
|
jnz .not_mtappack2
|
|
cmp byte [ebp+17h], 0xE9
|
|
jz .packed
|
|
.not_mtappack2:
|
|
cmp dword [ebp+14], 0x5F8DA4F3
|
|
jnz .not_mtappack3
|
|
cmp word [ebp+18], 0xE9FC
|
|
jz .packed
|
|
.not_mtappack3:
|
|
cmp word [ebp+14], 0xA4F3
|
|
jnz .not_mtappack
|
|
cmp byte [ebp+15h], 0xE9
|
|
jz .packed
|
|
.not_mtappack:
|
|
ret
|
|
.packed:
|
|
push esi
|
|
mov esi, aPacked1
|
|
call put_message_nodraw
|
|
pop esi
|
|
call put_message_nodraw
|
|
mov esi, aPacked2
|
|
call put_message
|
|
call hide_cursor
|
|
push 40
|
|
pop eax
|
|
push 7
|
|
pop ebx
|
|
int 40h
|
|
.wait:
|
|
push 10
|
|
pop eax
|
|
int 40h
|
|
dec eax
|
|
jz .redraw
|
|
dec eax
|
|
jz .key
|
|
or eax, -1
|
|
int 40h
|
|
.redraw:
|
|
call draw_window
|
|
call hide_cursor
|
|
jmp .wait
|
|
.key:
|
|
mov al, 2
|
|
int 40h
|
|
cmp ah, 'y'
|
|
jz .yes
|
|
cmp ah, 'Y'
|
|
jz .yes
|
|
cmp ah, 0xD
|
|
jz .yes
|
|
cmp ah, 'n'
|
|
jz .no
|
|
cmp ah, 'N'
|
|
jnz .wait
|
|
.no:
|
|
push 40
|
|
pop eax
|
|
mov ebx, 0x107
|
|
int 40h
|
|
call draw_cursor
|
|
mov esi, aN_str
|
|
jmp put_message
|
|
.yes:
|
|
push 40
|
|
pop eax
|
|
mov ebx, 0x107
|
|
int 40h
|
|
call draw_cursor
|
|
mov esi, aY_str
|
|
call put_message
|
|
call OnUnpack
|
|
ret
|
|
|
|
mxp_nrv_sig:
|
|
xor eax, eax
|
|
mov ecx, 0x95 ; 0xA1 for programs with parameters
|
|
mov [eax], ecx
|
|
add ecx, [eax+24h]
|
|
push 40h
|
|
pop esi
|
|
mov edi, [eax+20h]
|
|
push edi
|
|
rep movsb
|
|
jmp dword [esp]
|
|
pop esi
|
|
add esi, [eax]
|
|
xor edi, edi
|
|
mxp_nrv_sig_size = $ - mxp_nrv_sig
|
|
|
|
mxp_sig:
|
|
mov ecx, 1CBh
|
|
push 46h
|
|
pop esi
|
|
mov edi, [20h]
|
|
rep movsb
|
|
mov ecx, [24h]
|
|
rep movsb
|
|
jmp dword [20h]
|
|
mov eax, [20h]
|
|
add eax, 1CBh
|
|
push eax
|
|
push dword [24h]
|
|
push 0
|
|
push 8
|
|
call $+0x25
|
|
mxp_sig_size = $ - mxp_sig
|
|
|
|
mxp_lzo_sig1:
|
|
xor eax, eax
|
|
mov ebp, 0FFh
|
|
mov ecx, 175h
|
|
mov [eax], ecx
|
|
add ecx, [eax+24h]
|
|
push 45h
|
|
pop esi
|
|
mov edi, [eax+20h]
|
|
push edi
|
|
rep movsb
|
|
jmp dword [esp]
|
|
pop ebx
|
|
add ebx, [eax]
|
|
xor edi, edi
|
|
cmp byte [ebx], 11h
|
|
jbe $+0x1A
|
|
mxp_lzo_sig1_size = $ - mxp_lzo_sig1
|
|
mxp_lzo_sig2:
|
|
xor eax, eax
|
|
mov ebp, 0FFh
|
|
mov ecx, 188h ; or 177h
|
|
mov [eax], ecx
|
|
add ecx, [eax+24h]
|
|
push 44h
|
|
pop esi
|
|
mov edi, [eax+20h]
|
|
rep movsb
|
|
jmp dword [eax+20h]
|
|
mov ebx, [eax+20h]
|
|
add ebx, [eax]
|
|
mxp_lzo_sig2_size = $ - mxp_lzo_sig2
|
|
|
|
OnReload:
|
|
cmp [debuggee_pid], 0
|
|
jnz terminate_reload
|
|
mov esi, need_debuggee
|
|
cmp byte [loadname], 0
|
|
jnz do_reload
|
|
jz put_message
|
|
terminate_reload:
|
|
mov [bReload], 1
|
|
OnTerminate:
|
|
mov ecx, [debuggee_pid]
|
|
push 8
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
int 40h
|
|
ret
|
|
|
|
AfterSuspend:
|
|
mov [bSuspended], 1
|
|
call get_new_context
|
|
call get_dump
|
|
call redraw_title
|
|
call redraw_registers
|
|
call redraw_dump
|
|
call update_disasm_eip
|
|
ret
|
|
|
|
OnSuspend:
|
|
mov ecx, [debuggee_pid]
|
|
push 4
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
int 40h
|
|
call AfterSuspend
|
|
mov esi, aSuspended
|
|
jmp put_message
|
|
DoResume:
|
|
mov ecx, [debuggee_pid]
|
|
push 5
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
int 40h
|
|
mov [bSuspended], 0
|
|
ret
|
|
OnResume:
|
|
mov esi, [curarg]
|
|
cmp byte [esi], 0
|
|
jz GoOn
|
|
call calc_expression
|
|
jc .ret
|
|
mov eax, ebp
|
|
push eax
|
|
call find_enabled_breakpoint
|
|
pop eax
|
|
jz GoOn
|
|
mov bl, 5 ; valid enabled one-shot
|
|
call add_breakpoint
|
|
jnc GoOn
|
|
mov esi, aBreakpointLimitExceeded
|
|
call put_message
|
|
.ret:
|
|
ret
|
|
GoOn:
|
|
; test for enabled breakpoint at eip
|
|
mov eax, [_eip]
|
|
call find_enabled_breakpoint
|
|
jnz .nobreak
|
|
; temporarily disable breakpoint, make step, enable breakpoint, continue
|
|
inc eax
|
|
mov [temp_break], eax
|
|
mov [bAfterGo], 1
|
|
dec eax
|
|
call disable_breakpoint
|
|
call get_context
|
|
or byte [_eflags+1], 1 ; set TF
|
|
call set_context
|
|
and byte [_eflags+1], not 1
|
|
call DoResume
|
|
ret
|
|
.nobreak:
|
|
call DoResume
|
|
call redraw_title
|
|
call redraw_registers
|
|
call redraw_dump
|
|
ret
|
|
OnDetach:
|
|
mov ecx, [debuggee_pid]
|
|
push 3
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
int 40h
|
|
and [debuggee_pid], 0
|
|
call redraw_title
|
|
call redraw_registers
|
|
call redraw_dump
|
|
mov esi, aContinued
|
|
jmp put_message
|
|
|
|
after_go_exception:
|
|
push eax
|
|
mov eax, [temp_break]
|
|
dec eax
|
|
push esi
|
|
call enable_breakpoint
|
|
; in any case, clear TF and RF
|
|
call get_new_context
|
|
and [_eflags], not 10100h ; clear TF,RF
|
|
call set_context
|
|
xor edx, edx
|
|
mov [temp_break], edx
|
|
xchg dl, [bAfterGo]
|
|
pop esi
|
|
pop eax
|
|
cmp dl, 2
|
|
jnz @f
|
|
lodsd
|
|
push esi
|
|
call get_dump
|
|
jmp exception.done
|
|
@@: test eax, eax
|
|
jz .notint1
|
|
; if exception is result of single step, simply ignore it and continue
|
|
test dword [esi], 0xF
|
|
jnz dbgmsgstart.5
|
|
lodsd
|
|
push esi
|
|
mov esi, oldcontext
|
|
mov edi, context
|
|
mov ecx, 28h/4
|
|
rep movsd
|
|
call DoResume
|
|
jmp dbgmsgend
|
|
.notint1:
|
|
; in other case, work as without temp_break
|
|
lodsd
|
|
push esi
|
|
push eax
|
|
jmp exception.4
|
|
.notour:
|
|
|
|
debugmsg:
|
|
neg [dbgbufsize]
|
|
mov esi, dbgbuf
|
|
dbgmsgstart:
|
|
lodsd
|
|
; push eax esi
|
|
; push dword [esi]
|
|
; mov esi, dbgmsg_str
|
|
; call put_message_nodraw
|
|
; pop esi eax
|
|
add esi, 4
|
|
dec eax
|
|
jz exception
|
|
dec eax
|
|
jz terminated
|
|
mov [bSuspended], 1
|
|
cmp [bAfterGo], 0
|
|
jnz after_go_exception
|
|
push esi
|
|
call get_new_context
|
|
and [_eflags], not 10100h ; clear TF,RF
|
|
call set_context
|
|
pop esi
|
|
.5:
|
|
push esi
|
|
call get_dump
|
|
pop esi
|
|
lodsd
|
|
xor ecx, ecx
|
|
.6:
|
|
bt eax, ecx
|
|
jnc .7
|
|
mov ebx, [drx_break+ecx*4]
|
|
test ebx, ebx
|
|
jz .7
|
|
pushad
|
|
dec ebx
|
|
push ebx
|
|
mov esi, aBreakStop
|
|
call put_message_nodraw
|
|
popad
|
|
.7:
|
|
inc ecx
|
|
cmp cl, 4
|
|
jb .6
|
|
push esi
|
|
jmp exception.done_draw
|
|
terminated:
|
|
push esi
|
|
mov esi, terminated_msg
|
|
call put_message
|
|
and [debuggee_pid], 0
|
|
and [temp_break], 0
|
|
mov [bAfterGo], 0
|
|
xor eax, eax
|
|
mov ecx, breakpoints_n*6/4+4
|
|
mov edi, breakpoints
|
|
rep stosd
|
|
cmp [bReload], 1
|
|
sbb [bReload], -1
|
|
jmp exception.done
|
|
exception:
|
|
mov [bSuspended], 1
|
|
cmp [bAfterGo], 0
|
|
jnz after_go_exception
|
|
lodsd
|
|
push esi
|
|
push eax
|
|
call get_new_context
|
|
and [_eflags], not 10100h ; clear TF,RF
|
|
call set_context
|
|
.4:
|
|
call get_dump
|
|
pop eax
|
|
; int3 command generates exception 0D, #GP
|
|
push eax
|
|
cmp al, 0Dh
|
|
jnz .notdbg
|
|
; check for 0xCC byte at eip
|
|
push 0
|
|
push 69
|
|
pop eax
|
|
push 6
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
mov edi, esp
|
|
mov esi, [_eip]
|
|
push 1
|
|
pop edx
|
|
int 40h
|
|
pop eax
|
|
cmp al, 0xCC
|
|
jnz .notdbg
|
|
; this is either dbg breakpoint or int3 cmd in debuggee
|
|
mov eax, [_eip]
|
|
call find_enabled_breakpoint
|
|
jnz .user_int3
|
|
; dbg breakpoint; clear if one-shot
|
|
pop ecx
|
|
push eax
|
|
mov esi, aBreakStop
|
|
test byte [edi+4], 4
|
|
jz .put_msg_eax
|
|
pop ecx
|
|
call clear_breakpoint
|
|
jmp .done
|
|
.user_int3:
|
|
mov eax, [_eip]
|
|
inc [_eip]
|
|
pop ecx
|
|
push eax
|
|
call set_context
|
|
mov esi, aUserBreak
|
|
jmp .put_msg_eax
|
|
.notdbg:
|
|
mov esi, aException
|
|
.put_msg_eax:
|
|
call put_message_nodraw
|
|
.done_draw:
|
|
call draw_messages
|
|
.done:
|
|
push 18
|
|
pop eax
|
|
push 3
|
|
pop ebx
|
|
mov ecx, [dbgwnd]
|
|
int 40h ; activate dbg window
|
|
call redraw_title
|
|
call redraw_registers
|
|
call redraw_dump
|
|
call update_disasm_eip
|
|
dbgmsgend:
|
|
pop esi
|
|
mov ecx, [dbgbuflen]
|
|
add ecx, dbgbuf
|
|
cmp esi, ecx
|
|
jnz dbgmsgstart
|
|
and [dbgbuflen], 0
|
|
neg [dbgbufsize]
|
|
cmp [bReload], 2
|
|
jnz @f
|
|
mov [bReload], 0
|
|
call do_reload
|
|
@@:
|
|
jmp waitevent
|
|
|
|
CtrlF7:
|
|
cmp [debuggee_pid], 0
|
|
jz .no
|
|
call OnStep
|
|
.no:
|
|
jmp waitevent
|
|
CtrlF8:
|
|
cmp [debuggee_pid], 0
|
|
jz CtrlF7.no
|
|
call OnProceed
|
|
jmp CtrlF7.no
|
|
|
|
OnStep:
|
|
cmp [bSuspended], 0
|
|
jz .running
|
|
call get_context
|
|
or byte [_eflags+1], 1 ; set TF
|
|
call set_context
|
|
and byte [_eflags+1], not 1
|
|
; if instruction at eip is "int xx", set one-shot breakpoint immediately after
|
|
mov eax, [_eip]
|
|
call find_enabled_breakpoint
|
|
jnz @f
|
|
cmp byte [edi+5], 0xCD
|
|
jz .int
|
|
@@:
|
|
push 0
|
|
push 69
|
|
pop eax
|
|
push 6
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
push 3
|
|
pop edx
|
|
mov edi, esp
|
|
mov esi, [_eip]
|
|
int 40h
|
|
cmp eax, edx
|
|
pop eax
|
|
jnz .doit
|
|
cmp al, 0xCD
|
|
jz .int
|
|
; resume process
|
|
.doit:
|
|
call GoOn
|
|
cmp [bAfterGo], 0
|
|
jz @f
|
|
mov [bAfterGo], 2
|
|
@@:
|
|
ret
|
|
.int:
|
|
mov eax, [_eip]
|
|
inc eax
|
|
inc eax
|
|
push eax
|
|
call find_enabled_breakpoint
|
|
pop eax
|
|
jz .doit
|
|
; there is no enabled breakpoint yet; set temporary breakpoint
|
|
mov bl, 5
|
|
call add_breakpoint
|
|
jmp .doit
|
|
.running:
|
|
mov esi, aRunningErr
|
|
jmp put_message
|
|
|
|
OnProceed:
|
|
cmp [bSuspended], 0
|
|
jz OnStep.running
|
|
mov esi, [_eip]
|
|
@@:
|
|
call get_byte_nobreak
|
|
jc OnStep
|
|
inc esi
|
|
; skip prefixes
|
|
call is_prefix
|
|
jz @b
|
|
cmp al, 0xE8 ; call
|
|
jnz @f
|
|
add esi, 4
|
|
jmp .doit
|
|
@@: ; A4,A5 = movs, A6,A7=cmps
|
|
cmp al, 0xA4
|
|
jb @f
|
|
cmp al, 0xA8
|
|
jb .doit
|
|
@@: ; AA,AB=stos, AC,AD=lods, AE,AF=scas
|
|
cmp al, 0xAA
|
|
jb @f
|
|
cmp al, 0xB0
|
|
jb .doit
|
|
@@: ; E0=loopnz,E1=loopz,E2=loop
|
|
cmp al, 0xE0
|
|
jb .noloop
|
|
cmp al, 0xE2
|
|
ja .noloop
|
|
inc esi
|
|
jmp .doit
|
|
.noloop: ; FF /2 = call
|
|
cmp al, 0xFF
|
|
jnz OnStep
|
|
call get_byte_nobreak
|
|
jc OnStep
|
|
inc esi
|
|
mov cl, al
|
|
and al, 00111000b
|
|
cmp al, 00010000b
|
|
jnz OnStep
|
|
; skip instruction
|
|
mov al, cl
|
|
and eax, 7
|
|
shr cl, 6
|
|
jz .mod0
|
|
jp .doit
|
|
cmp al, 4
|
|
jnz @f
|
|
inc esi
|
|
@@:
|
|
inc esi
|
|
dec cl
|
|
jz @f
|
|
add esi, 3
|
|
@@:
|
|
jmp .doit
|
|
.mod0:
|
|
cmp al, 4
|
|
jnz @f
|
|
call get_byte_nobreak
|
|
jc OnStep
|
|
inc esi
|
|
and al, 7
|
|
@@:
|
|
cmp al, 5
|
|
jnz .doit
|
|
add esi, 4
|
|
.doit:
|
|
; insert one-shot breakpoint at esi and resume
|
|
call get_byte_nobreak
|
|
jc OnStep
|
|
mov eax, esi
|
|
call find_enabled_breakpoint
|
|
jz .ret
|
|
mov eax, esi
|
|
mov bl, 5
|
|
call add_breakpoint
|
|
jmp OnStep.doit
|
|
.ret:
|
|
ret
|
|
|
|
get_byte_nobreak:
|
|
mov eax, esi
|
|
call find_enabled_breakpoint
|
|
jnz .nobreak
|
|
mov al, [edi+5]
|
|
clc
|
|
ret
|
|
.nobreak:
|
|
push 69
|
|
pop eax
|
|
push 6
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
xor edx, edx
|
|
push edx
|
|
inc edx
|
|
mov edi, esp
|
|
int 40h
|
|
dec eax
|
|
clc
|
|
jz @f
|
|
stc
|
|
@@: pop eax
|
|
ret
|
|
|
|
is_prefix:
|
|
cmp al, 0x64 ; fs:
|
|
jz .ret
|
|
cmp al, 0x65 ; gs:
|
|
jz .ret
|
|
cmp al, 0x66 ; use16/32
|
|
jz .ret
|
|
cmp al, 0x67 ; addr16/32
|
|
jz .ret
|
|
cmp al, 0xF0 ; lock
|
|
jz .ret
|
|
cmp al, 0xF2 ; repnz
|
|
jz .ret
|
|
cmp al, 0xF3 ; rep(z)
|
|
jz .ret
|
|
cmp al, 0x2E ; cs:
|
|
jz .ret
|
|
cmp al, 0x36 ; ss:
|
|
jz .ret
|
|
cmp al, 0x3E ; ds:
|
|
jz .ret
|
|
cmp al, 0x26 ; es:
|
|
.ret: ret
|
|
|
|
token_end equ 1
|
|
token_reg equ 2
|
|
token_hex equ 3
|
|
token_add equ 4
|
|
token_sub equ 5
|
|
token_mul equ 6
|
|
token_div equ 7
|
|
token_lp equ 8
|
|
token_rp equ 9
|
|
token_err equ -1
|
|
|
|
is_hex_digit:
|
|
cmp al, '0'
|
|
jb .no
|
|
cmp al, '9'
|
|
jbe .09
|
|
cmp al, 'A'
|
|
jb .no
|
|
cmp al, 'F'
|
|
jbe .AF
|
|
cmp al, 'a'
|
|
jb .no
|
|
cmp al, 'f'
|
|
jbe .af
|
|
.no:
|
|
stc
|
|
ret
|
|
.09:
|
|
sub al, '0'
|
|
; clc
|
|
ret
|
|
.AF:
|
|
sub al, 'A'-10
|
|
; clc
|
|
ret
|
|
.af:
|
|
sub al, 'a'-10
|
|
; clc
|
|
ret
|
|
|
|
find_reg:
|
|
mov edi, reg_table
|
|
.findreg:
|
|
movzx ecx, byte [edi]
|
|
stc
|
|
jecxz .regnotfound
|
|
inc edi
|
|
push esi edi ecx
|
|
@@:
|
|
lodsb
|
|
or al, 20h
|
|
scasb
|
|
loopz @b
|
|
pop ecx edi esi
|
|
lea edi, [edi+ecx+1]
|
|
jnz .findreg
|
|
movzx edi, byte [edi-1]
|
|
add esi, ecx
|
|
.regnotfound:
|
|
ret
|
|
|
|
expr_get_token:
|
|
lodsb
|
|
cmp al, 0
|
|
jz .end_token
|
|
cmp al, ' '
|
|
jbe expr_get_token
|
|
cmp al, '+'
|
|
jz .add
|
|
cmp al, '-'
|
|
jz .sub
|
|
cmp al, '*'
|
|
jz .mul
|
|
cmp al, '/'
|
|
jz .div
|
|
cmp al, '('
|
|
jz .lp
|
|
cmp al, ')'
|
|
jnz .notsign
|
|
.rp:
|
|
mov al, token_rp
|
|
ret
|
|
.div:
|
|
mov al, token_div
|
|
ret
|
|
.end_token:
|
|
mov al, token_end
|
|
ret
|
|
.add:
|
|
mov al, token_add
|
|
ret
|
|
.sub:
|
|
mov al, token_sub
|
|
ret
|
|
.mul:
|
|
mov al, token_mul
|
|
ret
|
|
.lp:
|
|
mov al, token_lp
|
|
ret
|
|
.notsign:
|
|
dec esi
|
|
call find_reg
|
|
jc .regnotfound
|
|
mov al, token_reg
|
|
ret
|
|
.regnotfound:
|
|
; test for hex number
|
|
xor ecx, ecx
|
|
xor edi, edi
|
|
xor eax, eax
|
|
@@:
|
|
lodsb
|
|
call is_hex_digit
|
|
jc @f
|
|
shl edi, 4
|
|
or edi, eax
|
|
inc ecx
|
|
jmp @b
|
|
@@:
|
|
dec esi
|
|
jecxz .err
|
|
cmp ecx, 8
|
|
ja .err
|
|
mov al, token_hex
|
|
ret
|
|
.err:
|
|
mov al, token_err
|
|
mov esi, aParseError
|
|
ret
|
|
|
|
expr_read2:
|
|
cmp al, token_hex
|
|
jz .hex
|
|
cmp al, token_reg
|
|
jz .reg
|
|
cmp al, token_lp
|
|
jz .lp
|
|
mov al, token_err
|
|
mov esi, aParseError
|
|
ret
|
|
.hex:
|
|
mov ebp, edi
|
|
.ret:
|
|
jmp expr_get_token
|
|
.reg:
|
|
cmp edi, 24
|
|
jz .eip
|
|
sub edi, 4
|
|
jb .8lo
|
|
sub edi, 4
|
|
jb .8hi
|
|
sub edi, 8
|
|
jb .16
|
|
mov ebp, [_eax+edi*4]
|
|
jmp .ret
|
|
.16:
|
|
movzx ebp, word [_eax+(edi+8)*4]
|
|
jmp .ret
|
|
.8lo:
|
|
movzx ebp, byte [_eax+(edi+4)*4]
|
|
jmp .ret
|
|
.8hi:
|
|
movzx ebp, byte [_eax+(edi+4)*4+1]
|
|
jmp .ret
|
|
.eip:
|
|
mov ebp, [_eip]
|
|
jmp .ret
|
|
.lp:
|
|
call expr_get_token
|
|
call expr_read0
|
|
cmp al, token_err
|
|
jz @f
|
|
cmp al, token_rp
|
|
jz expr_get_token
|
|
mov al, token_err
|
|
mov esi, aParseError
|
|
@@: ret
|
|
|
|
expr_read1:
|
|
call expr_read2
|
|
.1:
|
|
cmp al, token_mul
|
|
jz .mul
|
|
cmp al, token_div
|
|
jz .div
|
|
ret
|
|
.mul:
|
|
push ebp
|
|
call expr_get_token
|
|
call expr_read2
|
|
pop edx
|
|
; ebp := edx*ebp
|
|
imul ebp, edx
|
|
jmp .1
|
|
.div:
|
|
push ebp
|
|
call expr_get_token
|
|
call expr_read2
|
|
pop edx
|
|
; ebp := edx/ebp
|
|
test ebp, ebp
|
|
jz .div0
|
|
push eax
|
|
xor eax, eax
|
|
xchg eax, edx
|
|
div ebp
|
|
xchg eax, ebp
|
|
pop eax
|
|
jmp .1
|
|
.div0:
|
|
mov al, token_err
|
|
mov esi, aDivByZero
|
|
ret
|
|
|
|
expr_read0:
|
|
xor ebp, ebp
|
|
cmp al, token_add
|
|
jz .add
|
|
cmp al, token_sub
|
|
jz .sub
|
|
call expr_read1
|
|
.1:
|
|
cmp al, token_add
|
|
jz .add
|
|
cmp al, token_sub
|
|
jz .sub
|
|
ret
|
|
.add:
|
|
push ebp
|
|
call expr_get_token
|
|
call expr_read1
|
|
pop edx
|
|
; ebp := edx+ebp
|
|
add ebp, edx
|
|
jmp .1
|
|
.sub:
|
|
push ebp
|
|
call expr_get_token
|
|
call expr_read1
|
|
pop edx
|
|
; ebp := edx-ebp
|
|
xchg edx, ebp
|
|
sub ebp, edx
|
|
jmp .1
|
|
|
|
calc_expression:
|
|
; in: esi->expression
|
|
; out: CF=1 if error
|
|
; CF=0 and ebp=value if ok
|
|
call expr_get_token
|
|
call expr_read0
|
|
cmp al, token_end
|
|
jz .end
|
|
cmp al, token_err
|
|
jz @f
|
|
mov esi, aParseError
|
|
@@:
|
|
call put_message
|
|
stc
|
|
ret
|
|
.end:
|
|
clc
|
|
ret
|
|
|
|
OnCalc:
|
|
mov esi, [curarg]
|
|
call calc_expression
|
|
jc .ret
|
|
push ebp
|
|
mov esi, calc_string
|
|
call put_message_nodraw
|
|
jmp draw_messages
|
|
.ret:
|
|
ret
|
|
|
|
OnDump:
|
|
mov esi, [curarg]
|
|
cmp byte [esi], 0
|
|
jnz .param
|
|
add [dumppos], dump_height*10h
|
|
jmp .doit
|
|
.param:
|
|
call calc_expression
|
|
jc .ret
|
|
mov [dumppos], ebp
|
|
.doit:
|
|
call get_dump
|
|
call redraw_dump
|
|
.ret:
|
|
ret
|
|
|
|
OnUnassemble:
|
|
mov esi, [curarg]
|
|
cmp byte [esi], 0
|
|
jnz .param
|
|
mov eax, [disasm_start_pos]
|
|
mov ecx, disasm_height
|
|
mov [disasm_cur_pos], eax
|
|
@@:
|
|
push ecx
|
|
call disasm_instr
|
|
pop ecx
|
|
jc .err
|
|
loop @b
|
|
mov eax, [disasm_cur_pos]
|
|
jmp .doit
|
|
.param:
|
|
call calc_expression
|
|
jc .ret
|
|
mov eax, ebp
|
|
.doit:
|
|
push eax
|
|
push [disasm_start_pos]
|
|
mov [disasm_start_pos], eax
|
|
call update_disasm
|
|
pop [disasm_start_pos]
|
|
pop eax
|
|
cmp [disasm_cur_str], 0
|
|
jz @f
|
|
mov [disasm_start_pos], eax
|
|
.ret:
|
|
ret
|
|
@@:
|
|
call update_disasm
|
|
.err:
|
|
mov esi, aInvAddr
|
|
jmp put_message
|
|
|
|
OnReg:
|
|
mov esi, [curarg]
|
|
call skip_spaces
|
|
call find_reg
|
|
jnc @f
|
|
.err:
|
|
mov esi, RSyntax
|
|
jmp put_message
|
|
@@:
|
|
call skip_spaces
|
|
test al, al
|
|
jz .err
|
|
cmp al, '='
|
|
jnz @f
|
|
inc esi
|
|
call skip_spaces
|
|
test al, al
|
|
jz .err
|
|
@@:
|
|
push edi
|
|
call calc_expression
|
|
pop edi
|
|
jc .ret
|
|
; now edi=register id, ebp=value
|
|
cmp [bSuspended], 0
|
|
mov esi, aRunningErr
|
|
jz put_message
|
|
xchg eax, ebp
|
|
cmp edi, 24
|
|
jz .eip
|
|
sub edi, 4
|
|
jb .8lo
|
|
sub edi, 4
|
|
jb .8hi
|
|
sub edi, 8
|
|
jb .16
|
|
mov [_eax+edi*4], eax
|
|
jmp .ret
|
|
.16:
|
|
mov word [_eax+(edi+8)*4], ax
|
|
jmp .ret
|
|
.8lo:
|
|
mov byte [_eax+(edi+4)*4], al
|
|
jmp .ret
|
|
.8hi:
|
|
mov byte [_eax+(edi+4)*4+1], al
|
|
jmp .ret
|
|
.eip:
|
|
mov [_eip], eax
|
|
call update_disasm_eip
|
|
.ret:
|
|
call set_context
|
|
jmp redraw_registers
|
|
|
|
; Breakpoints manipulation
|
|
OnBp:
|
|
mov esi, [curarg]
|
|
call calc_expression
|
|
jc .ret
|
|
xchg eax, ebp
|
|
push eax
|
|
call find_breakpoint
|
|
inc eax
|
|
pop eax
|
|
jz .notfound
|
|
mov esi, aDuplicateBreakpoint
|
|
jmp .sayerr
|
|
.notfound:
|
|
mov bl, 1
|
|
call add_breakpoint
|
|
jnc .ret
|
|
mov esi, aBreakpointLimitExceeded
|
|
.sayerr:
|
|
call put_message
|
|
.ret:
|
|
jmp redraw_disasm
|
|
|
|
OnBpmb:
|
|
mov dh, 0011b
|
|
jmp DoBpm
|
|
OnBpmw:
|
|
mov dh, 0111b
|
|
jmp DoBpm
|
|
OnBpmd:
|
|
mov dh, 1111b
|
|
DoBpm:
|
|
mov esi, [curarg]
|
|
cmp byte [esi], 'w'
|
|
jnz @f
|
|
and dh, not 2
|
|
inc esi
|
|
@@:
|
|
push edx
|
|
call calc_expression
|
|
pop edx
|
|
jnc @f
|
|
ret
|
|
@@:
|
|
; ebp=expression, dh=flags
|
|
movzx eax, dh
|
|
shr eax, 2
|
|
test ebp, eax
|
|
jz @f
|
|
mov esi, aUnaligned
|
|
jmp put_message
|
|
@@:
|
|
mov eax, ebp
|
|
mov bl, 0Bh
|
|
call add_breakpoint
|
|
jnc @f
|
|
mov esi, aBreakpointLimitExceeded
|
|
jmp put_message
|
|
@@:
|
|
; now find index
|
|
push eax
|
|
xor ecx, ecx
|
|
.l1:
|
|
cmp [drx_break+ecx*4], 0
|
|
jnz .l2
|
|
push 69
|
|
pop eax
|
|
push ecx
|
|
mov dl, cl
|
|
mov ecx, [debuggee_pid]
|
|
mov esi, ebp
|
|
push 9
|
|
pop ebx
|
|
int 40h
|
|
test eax, eax
|
|
jz .ok
|
|
pop ecx
|
|
.l2:
|
|
inc ecx
|
|
cmp ecx, 4
|
|
jb .l1
|
|
pop eax
|
|
call clear_breakpoint
|
|
mov esi, aBreakpointLimitExceeded
|
|
jmp put_message
|
|
.ok:
|
|
pop ecx
|
|
pop eax
|
|
and byte [edi], not 2 ; breakpoint is enabled
|
|
shl dl, 6
|
|
or dl, dh
|
|
mov byte [edi+1], dl
|
|
inc eax
|
|
mov [drx_break+ecx*4], eax
|
|
ret
|
|
|
|
OnBc:
|
|
mov esi, [curarg]
|
|
@@: call get_hex_number
|
|
jc OnBp.ret
|
|
call clear_breakpoint
|
|
jmp @b
|
|
|
|
OnBd:
|
|
mov esi, [curarg]
|
|
@@: call get_hex_number
|
|
jc OnBp.ret
|
|
call disable_breakpoint
|
|
jmp @b
|
|
|
|
OnBe:
|
|
mov esi, [curarg]
|
|
@@: call get_hex_number
|
|
jc OnBp.ret
|
|
push eax
|
|
call find_enabled_breakpoint
|
|
pop eax
|
|
jz .err
|
|
call enable_breakpoint
|
|
jmp @b
|
|
.err:
|
|
mov esi, OnBeErrMsg
|
|
jmp put_message
|
|
|
|
get_hex_number:
|
|
call skip_spaces
|
|
xor ecx, ecx
|
|
xor edx, edx
|
|
@@:
|
|
lodsb
|
|
call is_hex_digit
|
|
jc .ret
|
|
shl edx, 4
|
|
or dl, al
|
|
inc ecx
|
|
jmp @b
|
|
.ret:
|
|
dec esi
|
|
cmp ecx, 1
|
|
xchg eax, edx
|
|
ret
|
|
|
|
OnBl:
|
|
mov esi, [curarg]
|
|
cmp byte [esi], 0
|
|
jz .listall
|
|
call get_hex_number
|
|
jc .ret
|
|
cmp eax, breakpoints_n
|
|
jae .err
|
|
push eax
|
|
add eax, eax
|
|
lea edi, [breakpoints + eax + eax*2]
|
|
pop eax
|
|
test byte [edi+4], 1
|
|
jz .err
|
|
call show_break_info
|
|
.ret:
|
|
ret
|
|
.err:
|
|
mov esi, aInvalidBreak
|
|
jmp put_message
|
|
.listall:
|
|
mov edi, breakpoints
|
|
xor eax, eax
|
|
@@:
|
|
test byte [edi+4], 1
|
|
jz .cont
|
|
push edi eax
|
|
call show_break_info
|
|
pop eax edi
|
|
.cont:
|
|
add edi, 6
|
|
inc eax
|
|
cmp eax, breakpoints_n
|
|
jb @b
|
|
ret
|
|
|
|
show_break_info:
|
|
push edi
|
|
test byte [edi+4], 8
|
|
jnz .dr
|
|
push dword [edi]
|
|
push eax
|
|
mov esi, aBreakNum
|
|
call put_message_nodraw
|
|
jmp .cmn
|
|
.dr:
|
|
push eax
|
|
mov esi, aMemBreak1
|
|
call put_message_nodraw
|
|
pop edi
|
|
push edi
|
|
mov esi, aMemBreak2
|
|
test byte [edi+5], 2
|
|
jz @f
|
|
mov esi, aMemBreak3
|
|
@@:
|
|
call put_message_nodraw
|
|
pop edi
|
|
push edi
|
|
mov esi, aMemBreak6
|
|
test byte [edi+5], 8
|
|
jnz @f
|
|
mov esi, aMemBreak5
|
|
test byte [edi+5], 4
|
|
jnz @f
|
|
mov esi, aMemBreak4
|
|
@@:
|
|
call put_message_nodraw
|
|
pop edi
|
|
push edi
|
|
push dword [edi]
|
|
mov esi, aMemBreak7
|
|
call put_message_nodraw
|
|
.cmn:
|
|
pop edi
|
|
test byte [edi+4], 2
|
|
jz @f
|
|
push edi
|
|
mov esi, aDisabled
|
|
call put_message_nodraw
|
|
pop edi
|
|
@@:
|
|
test byte [edi+4], 4
|
|
jz @f
|
|
mov esi, aOneShot
|
|
call put_message_nodraw
|
|
@@:
|
|
mov esi, newline
|
|
jmp put_message
|
|
|
|
add_breakpoint:
|
|
; in: eax=address, bl=flags
|
|
; out: CF=1 => error, CF=0 => eax=breakpoint number
|
|
xor ecx, ecx
|
|
mov edi, breakpoints
|
|
@@:
|
|
test byte [edi+4], 1
|
|
jz .found
|
|
add edi, 6
|
|
inc ecx
|
|
cmp ecx, breakpoints_n
|
|
jb @b
|
|
stc
|
|
ret
|
|
.found:
|
|
stosd
|
|
xchg eax, ecx
|
|
mov [edi], bl
|
|
test bl, 2
|
|
jnz @f
|
|
or byte [edi], 2
|
|
push eax
|
|
call enable_breakpoint
|
|
pop eax
|
|
@@:
|
|
clc
|
|
ret
|
|
|
|
clear_breakpoint:
|
|
cmp eax, breakpoints_n
|
|
jae .ret
|
|
mov ecx, 4
|
|
inc eax
|
|
.1:
|
|
cmp [drx_break-4+ecx*4], eax
|
|
jnz @f
|
|
and [drx_break-4+ecx*4], 0
|
|
@@: loop .1
|
|
dec eax
|
|
push eax
|
|
add eax, eax
|
|
lea edi, [breakpoints + eax + eax*2 + 4]
|
|
test byte [edi], 1
|
|
pop eax
|
|
jz .ret
|
|
push edi
|
|
call disable_breakpoint
|
|
pop edi
|
|
mov byte [edi], 0
|
|
.ret:
|
|
ret
|
|
|
|
disable_breakpoint:
|
|
cmp eax, breakpoints_n
|
|
jae .ret
|
|
add eax, eax
|
|
lea edi, [breakpoints + eax + eax*2 + 5]
|
|
test byte [edi-1], 1
|
|
jz .ret
|
|
test byte [edi-1], 2
|
|
jnz .ret
|
|
or byte [edi-1], 2
|
|
test byte [edi-1], 8
|
|
jnz .dr
|
|
push esi
|
|
push 7
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
mov ecx, [debuggee_pid]
|
|
xor edx, edx
|
|
inc edx
|
|
mov esi, [edi-5]
|
|
int 40h
|
|
pop esi
|
|
.ret:
|
|
ret
|
|
.dr:
|
|
mov dl, [edi]
|
|
shr dl, 6
|
|
mov dh, 80h
|
|
push 69
|
|
pop eax
|
|
push 9
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
int 40h
|
|
ret
|
|
|
|
enable_breakpoint:
|
|
push esi
|
|
cmp eax, breakpoints_n
|
|
jae .ret
|
|
add eax, eax
|
|
lea edi, [breakpoints + eax + eax*2 + 5]
|
|
test byte [edi-1], 1
|
|
jz .ret
|
|
test byte [edi-1], 2
|
|
jz .ret
|
|
and byte [edi-1], not 2
|
|
test byte [edi-1], 8
|
|
jnz .dr
|
|
push 6
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
mov esi, [edi-5]
|
|
mov ecx, [debuggee_pid]
|
|
xor edx, edx
|
|
inc edx
|
|
int 40h
|
|
dec eax
|
|
jnz .err
|
|
mov al, 69
|
|
push 0xCC
|
|
mov edi, esp
|
|
inc ebx
|
|
int 40h
|
|
pop eax
|
|
.ret:
|
|
pop esi
|
|
ret
|
|
.err:
|
|
or byte [edi-1], 2
|
|
mov esi, aBreakErr
|
|
call put_message
|
|
pop esi
|
|
ret
|
|
.dr:
|
|
push 9
|
|
pop ebx
|
|
push 69
|
|
pop eax
|
|
mov esi, [edi-5]
|
|
mov ecx, [debuggee_pid]
|
|
mov dl, [edi]
|
|
shr dl, 6
|
|
mov dh, [edi]
|
|
and dh, 0xF
|
|
int 40h
|
|
test eax, eax
|
|
jnz .err
|
|
pop esi
|
|
ret
|
|
|
|
find_breakpoint:
|
|
xor ecx, ecx
|
|
xchg eax, ecx
|
|
mov edi, breakpoints
|
|
@@:
|
|
test byte [edi+4], 1
|
|
jz .cont
|
|
test byte [edi+4], 8
|
|
jnz .cont
|
|
cmp [edi], ecx
|
|
jz .found
|
|
.cont:
|
|
add edi, 6
|
|
inc eax
|
|
cmp eax, breakpoints_n
|
|
jb @b
|
|
or eax, -1
|
|
.found:
|
|
ret
|
|
|
|
find_enabled_breakpoint:
|
|
xor ecx, ecx
|
|
xchg eax, ecx
|
|
mov edi, breakpoints
|
|
@@:
|
|
test byte [edi+4], 1
|
|
jz .cont
|
|
test byte [edi+4], 2 or 8
|
|
jnz .cont
|
|
cmp [edi], ecx
|
|
jz .found
|
|
.cont:
|
|
add edi, 6
|
|
inc eax
|
|
cmp eax, breakpoints_n
|
|
jb @b
|
|
or eax, -1
|
|
.found:
|
|
ret
|
|
|
|
OnUnpack:
|
|
; program must be loaded - checked when command was parsed
|
|
; program must be stopped
|
|
mov esi, aRunningErr
|
|
cmp [bSuspended], 0
|
|
jz put_message
|
|
; all breakpoints must be disabled
|
|
mov edi, breakpoints
|
|
@@:
|
|
test byte [edi+4], 1
|
|
jz .cont
|
|
test byte [edi+4], 2
|
|
jnz .cont
|
|
mov esi, aEnabledBreakErr
|
|
jmp put_message
|
|
.cont:
|
|
add edi, 6
|
|
cmp edi, breakpoints+breakpoints_n*6
|
|
jb @b
|
|
; ok, now do it
|
|
; set breakpoint on 0xC dword access
|
|
push 9
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
mov dx, 1111b*256
|
|
push 0xC
|
|
pop esi
|
|
@@:
|
|
push 69
|
|
pop eax
|
|
int 40h
|
|
test eax, eax
|
|
jz .breakok
|
|
inc edx
|
|
cmp dl, 4
|
|
jb @b
|
|
.breakok:
|
|
call GoOn
|
|
; now wait for event
|
|
.wait:
|
|
push 10
|
|
pop eax
|
|
int 40h
|
|
dec eax
|
|
jz .redraw
|
|
dec eax
|
|
jz .key
|
|
dec eax
|
|
jnz .debug
|
|
; button; we have only one button, close
|
|
or eax, -1
|
|
int 40h
|
|
.redraw:
|
|
call draw_window
|
|
jmp .wait
|
|
.key:
|
|
mov al, 2
|
|
int 40h
|
|
cmp ah, 3 ; Ctrl+C
|
|
jnz .wait
|
|
.userbreak:
|
|
mov esi, aInterrupted
|
|
.x1:
|
|
push edx esi
|
|
call put_message
|
|
pop esi edx
|
|
or dh, 80h
|
|
push 69
|
|
pop eax
|
|
push 9
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
int 40h
|
|
cmp esi, aUnpacked
|
|
jnz OnSuspend
|
|
jmp AfterSuspend
|
|
.debug:
|
|
cmp [dbgbuflen], 4*3
|
|
jnz .notour
|
|
cmp dword [dbgbuf], 3
|
|
jnz .notour
|
|
test byte [dbgbuf+8], 1
|
|
jnz .our
|
|
.notour:
|
|
mov esi, aInterrupted
|
|
push edx
|
|
call put_message
|
|
pop edx
|
|
or dh, 80h
|
|
push 69
|
|
pop eax
|
|
push 9
|
|
pop ebx
|
|
mov ecx, [debuggee_pid]
|
|
int 40h
|
|
jmp debugmsg
|
|
.our:
|
|
and [dbgbuflen], 0
|
|
push edx
|
|
call get_context
|
|
push eax
|
|
mov al, 69
|
|
mov bl, 6
|
|
mov ecx, [debuggee_pid]
|
|
mov edi, esp
|
|
push 4
|
|
pop edx
|
|
push 0xC
|
|
pop esi
|
|
int 40h
|
|
pop eax
|
|
pop edx
|
|
cmp eax, [_eip]
|
|
jz .done
|
|
call DoResume
|
|
jmp .wait
|
|
.done:
|
|
mov esi, aUnpacked
|
|
jmp .x1
|
|
|
|
disasm_get_byte:
|
|
; out: al=byte
|
|
push ecx
|
|
mov ecx, [disasm_cur_pos]
|
|
sub ecx, [disasm_start_pos]
|
|
cmp ecx, [disasm_buf_size]
|
|
jae disasm_err
|
|
mov al, [disasm_buffer+ecx]
|
|
pop ecx
|
|
inc [disasm_cur_pos]
|
|
ret
|
|
disasm_get_word:
|
|
push ecx
|
|
mov ecx, [disasm_cur_pos]
|
|
sub ecx, [disasm_start_pos]
|
|
inc ecx
|
|
cmp ecx, [disasm_buf_size]
|
|
jae disasm_err
|
|
mov ax, word [disasm_buffer-1+ecx]
|
|
pop ecx
|
|
add [disasm_cur_pos], 2
|
|
ret
|
|
disasm_get_dword:
|
|
push ecx
|
|
mov ecx, [disasm_cur_pos]
|
|
sub ecx, [disasm_start_pos]
|
|
add ecx, 3
|
|
cmp ecx, [disasm_buf_size]
|
|
jae disasm_err
|
|
mov eax, dword [disasm_buffer-3+ecx]
|
|
pop ecx
|
|
add [disasm_cur_pos], 4
|
|
ret
|
|
|
|
disasm_err:
|
|
mov esp, ebp
|
|
stc_ret:
|
|
stc
|
|
ret
|
|
disasm_ret:
|
|
mov esp, ebp
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
disasm_instr:
|
|
mov ebp, esp
|
|
cmp [debuggee_pid], 0
|
|
jz stc_ret
|
|
mov edi, disasm_string
|
|
xor ecx, ecx
|
|
; ecx=flags
|
|
disasm_loop1:
|
|
xor eax, eax
|
|
call disasm_get_byte
|
|
jmp dword [disasm_table_1 + eax*4]
|
|
|
|
cop0:
|
|
clock:
|
|
crepnz:
|
|
crep:
|
|
csegcs:
|
|
csegds:
|
|
cseges:
|
|
csegss:
|
|
csegfs:
|
|
cseggs:
|
|
call @f
|
|
db 0x2E,3,'cs:'
|
|
db 0x36,3,'ss:'
|
|
db 0x3E,3,'ds:'
|
|
db 0x26,3,'es:'
|
|
db 0x64,3,'fs:'
|
|
db 0x65,3,'gs:'
|
|
db 0x06,10,'push es'
|
|
db 0x07,10,'pop es'
|
|
db 0x0E,10,'push cs'
|
|
db 0x16,10,'push ss'
|
|
db 0x17,10,'pop ss'
|
|
db 0x1E,10,'push ds'
|
|
db 0x1F,10,'pop ds'
|
|
db 0x27,3,'daa'
|
|
db 0x2F,3,'das'
|
|
db 0x37,3,'aaa'
|
|
db 0x3F,3,'aas'
|
|
db 0x60,6,0,'pusha'
|
|
db 0x61,5,0,'popa'
|
|
db 0x90,3,'nop'
|
|
db 0x9B,5,'fwait'
|
|
db 0x9C,6,0,'pushf'
|
|
db 0x9D,5,0,'popf'
|
|
db 0x9E,4,'sahf'
|
|
db 0x9F,4,'lahf'
|
|
db 0xA4,5,'movsb'
|
|
db 0xA5,5,0,'movs'
|
|
db 0xA6,5,'cmpsb'
|
|
db 0xA7,5,0,'cmps'
|
|
db 0xAA,5,'stosb'
|
|
db 0xAB,5,0,'stos'
|
|
db 0xAC,5,'lodsb'
|
|
db 0xAD,5,0,'lods'
|
|
db 0xAE,5,'scasb'
|
|
db 0xAF,5,0,'scas'
|
|
db 0xC3,3,'ret'
|
|
db 0xC9,5,'leave'
|
|
db 0xCC,4,'int3'
|
|
db 0xF0,4,'lock'
|
|
db 0xF2,5,'repnz'
|
|
db 0xF3,6,'rep(z)'
|
|
db 0xF5,3,'cmc'
|
|
db 0xF8,3,'clc'
|
|
db 0xF9,3,'stc'
|
|
db 0xFA,3,'cli'
|
|
db 0xFB,3,'sti'
|
|
db 0xFC,3,'cld'
|
|
db 0xFD,3,'std'
|
|
@@:
|
|
pop esi
|
|
@@:
|
|
cmp al, [esi]
|
|
jz .found
|
|
inc esi
|
|
movzx edx, byte [esi]
|
|
inc esi
|
|
add esi, edx
|
|
jmp @b
|
|
.found:
|
|
inc esi
|
|
lodsb
|
|
cmp byte [esi], 0
|
|
jz @f
|
|
movzx ecx, al
|
|
disasm_1:
|
|
rep movsb
|
|
and byte [edi], 0
|
|
ret
|
|
@@:
|
|
mov dl, ch
|
|
movzx ecx, al
|
|
dec ecx
|
|
inc esi
|
|
rep movsb
|
|
test dl, 1
|
|
mov al, 'w'
|
|
jnz @f
|
|
mov al, 'd'
|
|
@@: stosb
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
c67:
|
|
or ch, 2
|
|
jmp disasm_loop1
|
|
c66:
|
|
or ch, 1
|
|
jmp disasm_loop1
|
|
|
|
center:
|
|
caam:
|
|
cxlat:
|
|
crdtsc:
|
|
csysenter:
|
|
ccpuid:
|
|
ccmpxchg:
|
|
cbsf:
|
|
cbsr:
|
|
ccmpxchg8b:
|
|
cunk:
|
|
cerr:
|
|
mov eax, '???'
|
|
stosd
|
|
clc
|
|
ret
|
|
|
|
cF:
|
|
call disasm_get_byte
|
|
jmp dword [disasm_table_2 + eax*4]
|
|
|
|
macro disasm_set_modew
|
|
{
|
|
test al, 1
|
|
jz @f
|
|
or ch, 80h
|
|
@@:
|
|
}
|
|
|
|
cmov2:
|
|
disasm_set_modew
|
|
; mov r/m,i
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
test al, 00111000b
|
|
jnz cunk
|
|
mov eax, 'mov '
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
xor eax, eax
|
|
test ch, 80h
|
|
jnz .1
|
|
call disasm_get_byte
|
|
jmp .3
|
|
.1:
|
|
test ch, 1
|
|
jnz .2
|
|
call disasm_get_dword
|
|
jmp .3
|
|
.2:
|
|
call disasm_get_word
|
|
.3:
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cret2:
|
|
mov eax, 'ret '
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
xor eax, eax
|
|
jmp cmov2.2
|
|
|
|
disasm_write_num:
|
|
push ecx eax
|
|
inc edi
|
|
@@:
|
|
mov ecx, eax
|
|
shr eax, 4
|
|
jz @f
|
|
inc edi
|
|
jmp @b
|
|
@@:
|
|
pop eax
|
|
cmp ecx, 10
|
|
jb @f
|
|
inc edi
|
|
@@:
|
|
push edi eax
|
|
@@:
|
|
mov ecx, eax
|
|
and al, 0xF
|
|
cmp al, 10
|
|
sbb al, 69h
|
|
das
|
|
dec edi
|
|
mov [edi], al
|
|
mov eax, ecx
|
|
shr eax, 4
|
|
jnz @b
|
|
cmp ecx, 10
|
|
jb @f
|
|
mov byte [edi-1], '0'
|
|
@@:
|
|
pop eax edi ecx
|
|
cmp eax, 10
|
|
jb @f
|
|
mov byte [edi], 'h'
|
|
inc edi
|
|
@@:
|
|
ret
|
|
|
|
label disasm_regs32 dword
|
|
label disasm_regs dword
|
|
db 'eax',0
|
|
db 'ecx',0
|
|
db 'edx',0
|
|
db 'ebx',0
|
|
db 'esp',0
|
|
db 'ebp',0
|
|
db 'esi',0
|
|
db 'edi',0
|
|
disasm_regs16 dw 'ax','cx','dx','bx','sp','bp','si','di'
|
|
disasm_regs8 dw 'al','cl','dl','bl','ah','ch','dh','bh'
|
|
disasm_scale db '1248'
|
|
disasm_readrmop:
|
|
call disasm_get_byte
|
|
test ch, 40h
|
|
jnz .skip_size
|
|
push eax
|
|
and al, 0xC0
|
|
cmp al, 0xC0
|
|
pop eax
|
|
jz .skip_size
|
|
test ch, 80h
|
|
jz .byte
|
|
test ch, 1
|
|
jnz .word
|
|
mov dword [edi], 'dwor'
|
|
mov byte [edi+4], 'd'
|
|
inc edi
|
|
jmp @f
|
|
.byte:
|
|
test ch, 20h
|
|
jz .qb
|
|
mov byte [edi], 't'
|
|
inc edi
|
|
.qb:
|
|
mov dword [edi], 'byte'
|
|
jmp @f
|
|
.word:
|
|
test ch, 20h
|
|
jz .qw
|
|
mov byte [edi], 'q'
|
|
inc edi
|
|
.qw:
|
|
mov dword [edi], 'word'
|
|
@@:
|
|
mov byte [edi+4], ' '
|
|
add edi, 5
|
|
.skip_size:
|
|
test ch, 2
|
|
jnz disasm_readrmop16
|
|
push ecx
|
|
movzx ecx, al
|
|
and eax, 7
|
|
shr ecx, 6
|
|
jz .vmod0
|
|
jp .vmod3
|
|
mov byte [edi], '['
|
|
inc edi
|
|
cmp al, 4
|
|
jz .sib1
|
|
mov eax, [disasm_regs+eax*4]
|
|
stosd
|
|
dec edi
|
|
jmp @f
|
|
.sib1:
|
|
call .parse_sib
|
|
@@:
|
|
mov al, '+'
|
|
stosb
|
|
dec ecx
|
|
jz .vmod1
|
|
call disasm_get_dword
|
|
jmp @f
|
|
.vmod1:
|
|
call disasm_get_byte
|
|
movsx eax, al
|
|
@@:
|
|
test eax, eax
|
|
jns .2
|
|
neg eax
|
|
mov byte [edi-1], '-'
|
|
.2:
|
|
call disasm_write_num
|
|
mov al, ']'
|
|
stosb
|
|
pop ecx
|
|
ret
|
|
.vmod3:
|
|
pop ecx
|
|
test ch, 80h
|
|
jz .vmod3_byte
|
|
test ch, 1
|
|
jnz .vmod3_word
|
|
test ch, 20h
|
|
jnz .vmod3_sti
|
|
mov eax, [disasm_regs32+eax*4]
|
|
stosd
|
|
dec edi
|
|
ret
|
|
.vmod3_byte:
|
|
mov ax, [disasm_regs8+eax*2]
|
|
@@:
|
|
stosw
|
|
ret
|
|
.vmod3_word:
|
|
mov ax, [disasm_regs16+eax*2]
|
|
jmp @b
|
|
.vmod3_sti:
|
|
mov word [edi], 'st'
|
|
add al, '0'
|
|
mov byte [edi+2], al
|
|
add edi, 3
|
|
ret
|
|
.vmod0:
|
|
mov byte [edi], '['
|
|
inc edi
|
|
cmp al, 4
|
|
jz .sib2
|
|
cmp al, 5
|
|
jz .ofs32
|
|
mov eax, [disasm_regs+eax*4]
|
|
stosd
|
|
mov byte [edi-1], ']'
|
|
pop ecx
|
|
ret
|
|
.ofs32:
|
|
call disasm_get_dword
|
|
jmp .2
|
|
.sib2:
|
|
call .parse_sib
|
|
mov al, ']'
|
|
stosb
|
|
pop ecx
|
|
ret
|
|
.parse_sib:
|
|
call disasm_get_byte
|
|
push edx
|
|
mov dl, al
|
|
mov dh, 0
|
|
and eax, 7
|
|
cmp al, 5
|
|
jnz @f
|
|
jecxz .sib0
|
|
@@:
|
|
mov eax, [disasm_regs+eax*4]
|
|
stosd
|
|
dec edi
|
|
mov dh, 1
|
|
.sib0:
|
|
mov al, dl
|
|
shr eax, 3
|
|
and eax, 7
|
|
cmp al, 4
|
|
jz .sibret
|
|
test dh, dh
|
|
jz @f
|
|
mov byte [edi], '+'
|
|
inc edi
|
|
@@:
|
|
mov eax, [disasm_regs+eax*4]
|
|
stosd
|
|
dec edi
|
|
shr dl, 6
|
|
jz @f
|
|
mov al, '*'
|
|
stosb
|
|
movzx eax, dl
|
|
mov al, [disasm_scale+eax]
|
|
stosb
|
|
@@:
|
|
.sibret:
|
|
test dh, dh
|
|
jnz .sibret2
|
|
call disasm_get_dword
|
|
cmp byte [edi-1], '['
|
|
jz @f
|
|
mov byte [edi], '+'
|
|
test eax, eax
|
|
jns .sibns
|
|
neg eax
|
|
mov byte [edi], '-'
|
|
.sibns:
|
|
inc edi
|
|
@@:
|
|
call disasm_write_num
|
|
.sibret2:
|
|
pop edx
|
|
ret
|
|
|
|
disasm_rm16_1 dd 'bxsi','bxdi','bpsi','bpdi'
|
|
disasm_rm16_2 dw 'si','di','bp','bx'
|
|
disasm_readrmop16:
|
|
push ecx
|
|
movzx ecx, al
|
|
and eax, 7
|
|
shr ecx, 6
|
|
jz .vmod0
|
|
jp disasm_readrmop.vmod3 ; mod=3 is the same in 16- and 32-bit code
|
|
; 1 or 2
|
|
mov byte [edi], '['
|
|
inc edi
|
|
cmp al, 4
|
|
jae @f
|
|
mov eax, [disasm_rm16_1+eax*4]
|
|
stosw
|
|
mov al, '+'
|
|
stosb
|
|
shr eax, 16
|
|
jmp .1
|
|
@@:
|
|
mov eax, dword [disasm_rm16_2+eax*2-4*2]
|
|
.1:
|
|
stosw
|
|
mov al, '+'
|
|
stosb
|
|
xor eax, eax
|
|
dec ecx
|
|
jnz .2
|
|
call disasm_get_byte
|
|
cbw
|
|
jmp @f
|
|
.2:
|
|
call disasm_get_word
|
|
@@:
|
|
test ax, ax
|
|
jns @f
|
|
mov byte [edi-1], '-'
|
|
neg ax
|
|
@@:
|
|
call disasm_write_num
|
|
.done1:
|
|
mov al, ']'
|
|
stosb
|
|
pop ecx
|
|
ret
|
|
.vmod0:
|
|
mov byte [edi], '['
|
|
inc edi
|
|
cmp al, 6
|
|
jz .ofs16
|
|
cmp al, 4
|
|
jae @f
|
|
mov eax, [disasm_rm16_1+eax*4]
|
|
stosw
|
|
mov al, '+'
|
|
stosb
|
|
shr eax, 16
|
|
jmp .3
|
|
@@:
|
|
mov eax, dword [disasm_rm16_2+eax*2-4*2]
|
|
.3:
|
|
stosw
|
|
jmp .done1
|
|
.ofs16:
|
|
xor eax, eax
|
|
call disasm_get_word
|
|
call disasm_write_num
|
|
jmp .done1
|
|
|
|
cpush21:
|
|
mov eax, 'push'
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
disasm_i32:
|
|
call disasm_get_dword
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cpush22:
|
|
mov eax, 'push'
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_get_byte
|
|
movsx eax, al
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cinc1:
|
|
; inc reg32
|
|
cdec1:
|
|
; dec reg32
|
|
cpush1:
|
|
; push reg32
|
|
cpop1:
|
|
; pop reg32
|
|
cbswap:
|
|
; bswap reg32
|
|
mov edx, eax
|
|
and edx, 7
|
|
shr eax, 3
|
|
sub al, 8
|
|
mov esi, 'inc '
|
|
jz @f
|
|
mov esi, 'dec '
|
|
dec al
|
|
jz @f
|
|
mov esi, 'push'
|
|
dec al
|
|
jz @f
|
|
mov esi, 'pop '
|
|
dec al
|
|
jz @f
|
|
mov esi, 'bswa'
|
|
@@:
|
|
xchg eax, esi
|
|
stosd
|
|
mov eax, ' '
|
|
jz @f
|
|
mov al, 'p'
|
|
@@:
|
|
stosd
|
|
xchg eax, edx
|
|
call disasm_write_reg1632
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cxchg1:
|
|
; xchg eax,reg32
|
|
and eax, 7
|
|
xchg eax, edx
|
|
mov eax, 'xchg'
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
xor eax, eax
|
|
call disasm_write_reg1632
|
|
mov ax, ', '
|
|
stosw
|
|
xchg eax, edx
|
|
call disasm_write_reg1632
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cint:
|
|
mov eax, 'int '
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
disasm_i8u:
|
|
xor eax, eax
|
|
call disasm_get_byte
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cmov11:
|
|
; mov r8,i8
|
|
mov ecx, eax
|
|
mov eax, 'mov '
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
and ecx, 7
|
|
mov ax, [disasm_regs8+ecx*2]
|
|
stosw
|
|
mov ax, ', '
|
|
stosw
|
|
jmp disasm_i8u
|
|
|
|
cmov12:
|
|
; mov r32,i32
|
|
xchg eax, edx
|
|
mov eax, 'mov '
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
xchg eax, edx
|
|
and eax, 7
|
|
call disasm_write_reg1632
|
|
mov ax, ', '
|
|
stosw
|
|
jmp cmov2.1
|
|
|
|
disasm_shifts dd 'rol ','ror ','rcl ','rcr ','shl ','shr ','sal ','sar '
|
|
cshift2:
|
|
; shift r/m,1 = D0/D1
|
|
cshift3:
|
|
; shift r/m,cl = D2/D3
|
|
disasm_set_modew
|
|
mov dl, al
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
mov eax, [disasm_shifts+eax*4]
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_readrmop
|
|
cmp dl, 0xD2
|
|
jb .s1
|
|
mov eax, ', cl'
|
|
stosd
|
|
and byte [edi], 0
|
|
ret
|
|
.s1:
|
|
mov eax, ', 1'
|
|
stosd
|
|
clc
|
|
ret
|
|
|
|
cshift1:
|
|
; shift r/m,i8 = C0/C1
|
|
disasm_set_modew
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
mov eax, [disasm_shifts+eax*4]
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
jmp disasm_i8u
|
|
|
|
|
|
cmov3:
|
|
; A0: mov al,[ofs32]
|
|
; A1: mov ax/eax,[ofs32]
|
|
; A2: mov [ofs32],al
|
|
; A3: mov [ofs32],ax/eax
|
|
mov edx, 'mov '
|
|
xchg eax, edx
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
test dl, 2
|
|
jnz .1
|
|
call .write_acc
|
|
mov ax, ', '
|
|
stosw
|
|
call .write_ofs32
|
|
jmp .2
|
|
.1:
|
|
call .write_ofs32
|
|
mov ax, ', '
|
|
stosw
|
|
call .write_acc
|
|
.2: and byte [edi], 0
|
|
ret
|
|
.write_acc:
|
|
test dl, 1
|
|
jz .8bit
|
|
test ch, 1
|
|
jnz .16bit
|
|
mov eax, 'eax'
|
|
stosd
|
|
dec edi
|
|
ret
|
|
.16bit:
|
|
mov ax, 'ax'
|
|
stosw
|
|
ret
|
|
.8bit:
|
|
mov ax, 'al'
|
|
stosw
|
|
ret
|
|
.write_ofs32:
|
|
mov al, '['
|
|
stosb
|
|
call disasm_get_dword
|
|
call disasm_write_num
|
|
mov al, ']'
|
|
stosb
|
|
ret
|
|
|
|
disasm_write_reg:
|
|
test ch, 80h
|
|
jnz disasm_write_reg1632
|
|
mov ax, [disasm_regs8+eax*2]
|
|
stosw
|
|
ret
|
|
disasm_write_reg1632:
|
|
test ch, 1
|
|
jnz @f
|
|
mov eax, [disasm_regs32+eax*4]
|
|
stosd
|
|
dec edi
|
|
ret
|
|
@@:
|
|
mov ax, [disasm_regs16+eax*2]
|
|
stosw
|
|
ret
|
|
|
|
cmovzx: ; 0F B6/B7
|
|
cmovsx: ; 0F BE/BF
|
|
mov edx, eax
|
|
disasm_set_modew
|
|
mov eax, 'movz'
|
|
cmp dl, 0xB8
|
|
jb @f
|
|
mov eax, 'movs'
|
|
@@:
|
|
stosd
|
|
mov eax, 'x '
|
|
stosd
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
call disasm_write_reg1632
|
|
mov ax, ', '
|
|
stosw
|
|
or ch, 1 ; 2nd operand - 8 or 16 bits
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
disasm_op2cmds dd 'add ','or ','adc ','sbb ','and ','sub ','xor ','cmp '
|
|
cop21:
|
|
disasm_set_modew
|
|
mov esi, 'test'
|
|
cmp al, 0A8h
|
|
jae @f
|
|
shr al, 3
|
|
and eax, 7
|
|
mov esi, [disasm_op2cmds+eax*4]
|
|
@@:
|
|
xchg eax, esi
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
test ch, 80h
|
|
jnz .1632
|
|
mov eax, 'al, '
|
|
stosd
|
|
jmp disasm_i8u
|
|
.1632:
|
|
test ch, 1
|
|
jnz .16
|
|
mov eax, 'eax,'
|
|
stosd
|
|
mov al, ' '
|
|
stosb
|
|
call disasm_get_dword
|
|
jmp .x
|
|
.16:
|
|
mov eax, 'ax, '
|
|
stosd
|
|
xor eax, eax
|
|
call disasm_get_word
|
|
.x:
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cop22:
|
|
disasm_set_modew
|
|
or ch, 40h
|
|
mov edx, eax
|
|
mov esi, 'lea '
|
|
cmp al, 8Dh
|
|
jz @f
|
|
mov esi, 'imul'
|
|
cmp al, 0xAF
|
|
jz @f
|
|
mov esi, 'mov '
|
|
cmp al, 88h
|
|
jae @f
|
|
mov esi, 'xchg'
|
|
cmp al, 86h
|
|
jae @f
|
|
mov esi, 'test'
|
|
cmp al, 84h
|
|
jae @f
|
|
shr al, 3
|
|
and eax, 7
|
|
mov esi, [disasm_op2cmds+eax*4]
|
|
@@:
|
|
xchg eax, esi
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
cmp dl, 0x8D
|
|
jz @f
|
|
cmp dl, 0x86
|
|
jz @f
|
|
cmp dl, 0x87
|
|
jz @f
|
|
test dl, 2
|
|
jz .d0
|
|
@@:
|
|
call disasm_write_reg
|
|
mov ax, ', '
|
|
stosw
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
.d0:
|
|
push eax
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
pop eax
|
|
call disasm_write_reg
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cop23:
|
|
disasm_set_modew
|
|
xchg eax, edx
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr eax, 3
|
|
and eax, 7
|
|
mov eax, [disasm_op2cmds+eax*4]
|
|
ctest:
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
test ch, 80h
|
|
jz .i8
|
|
cmp dl, 83h
|
|
jz .i8
|
|
test ch, 1
|
|
jnz .i16
|
|
call disasm_get_dword
|
|
jmp .ic
|
|
.i8:
|
|
xor eax, eax
|
|
call disasm_get_byte
|
|
cmp dl, 83h
|
|
jnz .ic
|
|
movsx eax, al
|
|
jmp .ic
|
|
.i16:
|
|
xor eax, eax
|
|
call disasm_get_word
|
|
.ic:
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cbtx1:
|
|
; btx r/m,i8 = 0F BA
|
|
or ch, 80h
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
cmp al, 4
|
|
jb cunk
|
|
mov eax, [btx1codes+eax*4-4*4]
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
jmp disasm_i8u
|
|
btx1codes dd 'bt ','bts ','btr ','btc '
|
|
cbtx2:
|
|
; btx r/m,r = 0F 101xx011 (A3,AB,B3,BB)
|
|
shr al, 3
|
|
and eax, 3
|
|
mov eax, [btx1codes+eax*4]
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
or ch, 0xC0
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
push eax
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
pop eax
|
|
call disasm_write_reg1632
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
csetcc:
|
|
and eax, 0xF
|
|
mov ax, [disasm_jcc_codes + eax*2]
|
|
mov dword [edi], 'setc'
|
|
add edi, 3
|
|
stosw
|
|
mov ax, ' '
|
|
stosw
|
|
stosb
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
disasm_jcc_codes dw 'o ','no','b ','ae','z ','nz','be','a ','s ','ns','p ','np','l ','ge','le','g '
|
|
cjcc1:
|
|
cjmp2:
|
|
cmp al, 0xEB
|
|
jz .1
|
|
and eax, 0xF
|
|
mov ax, [disasm_jcc_codes + eax*2]
|
|
jmp .2
|
|
.1:
|
|
mov ax, 'mp'
|
|
.2:
|
|
mov byte [edi], 'j'
|
|
inc edi
|
|
stosw
|
|
mov eax, ' '
|
|
stosb
|
|
stosd
|
|
call disasm_get_byte
|
|
movsx eax, al
|
|
disasm_rva:
|
|
add eax, [disasm_cur_pos]
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
ccall1:
|
|
cjmp1:
|
|
cjcc2:
|
|
mov edx, 'call'
|
|
cmp al, 0xE8
|
|
jz @f
|
|
mov edx, 'jmp '
|
|
cmp al, 0xE9
|
|
jz @f
|
|
mov edx, ' '
|
|
and eax, 0xF
|
|
mov dx, [disasm_jcc_codes+eax*2]
|
|
shl edx, 8
|
|
mov dl, 'j'
|
|
@@:
|
|
xchg eax, edx
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_get_dword
|
|
jmp disasm_rva
|
|
|
|
op11codes dd 'test',0,'not ','neg ','mul ','imul','div ','idiv'
|
|
op12codes dd 'inc ','dec ','call',0,'jmp ',0,'push',0
|
|
cop1:
|
|
disasm_set_modew
|
|
xchg eax, edx
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
cmp dl, 0xFE
|
|
jnz @f
|
|
cmp al, 1
|
|
ja cunk
|
|
@@:
|
|
and edx, 8
|
|
add eax, edx
|
|
mov eax, [op11codes+eax*4]
|
|
test eax, eax
|
|
jz cunk
|
|
cmp eax, 'test'
|
|
jz ctest
|
|
@@:
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cpop2:
|
|
or ch, 80h
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
test al, 00111000b
|
|
jnz cunk
|
|
mov eax, 'pop '
|
|
jmp @b
|
|
|
|
cloopnz:
|
|
mov eax, 'loop'
|
|
stosd
|
|
mov eax, 'nz '
|
|
test ch, 2
|
|
jz @f
|
|
mov ah, 'w'
|
|
@@: jmp cloop.cmn
|
|
cloopz:
|
|
mov eax, 'loop'
|
|
stosd
|
|
mov eax, 'z '
|
|
test ch, 2
|
|
jz @f
|
|
mov eax, 'zw '
|
|
@@: jmp cloop.cmn
|
|
|
|
cjcxz:
|
|
cloop:
|
|
cmp al, 0xE2
|
|
jz .loop
|
|
test ch, 2
|
|
jnz .jcxz
|
|
mov eax, 'jecx'
|
|
stosd
|
|
mov eax, 'z '
|
|
jmp .cmn
|
|
.jcxz:
|
|
mov eax, 'jcxz'
|
|
stosd
|
|
mov eax, ' '
|
|
jmp .cmn
|
|
.loop:
|
|
mov eax, 'loop'
|
|
stosd
|
|
mov eax, ' '
|
|
test ch, 2
|
|
jz .cmn
|
|
mov al, 'w'
|
|
.cmn:
|
|
stosd
|
|
call disasm_get_byte
|
|
movsx eax, al
|
|
add eax, [disasm_cur_pos]
|
|
test ch, 1
|
|
jz @f
|
|
and eax, 0xFFFF
|
|
@@:
|
|
disasm_write_num_done:
|
|
call disasm_write_num
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
cimul1:
|
|
; imul r,r/m,i
|
|
or ch, 80h ; 32bit operation
|
|
xchg eax, edx
|
|
mov eax, 'imul'
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
call disasm_write_reg1632
|
|
mov ax, ', '
|
|
stosw
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
test ch, 1
|
|
jnz .16
|
|
cmp dl, 0x69
|
|
jz .op32
|
|
call disasm_get_byte
|
|
movsx eax, al
|
|
jmp disasm_write_num_done
|
|
.op32:
|
|
call disasm_get_dword
|
|
jmp disasm_write_num_done
|
|
.16:
|
|
cmp dl, 0x69
|
|
jz .op16
|
|
call disasm_get_byte
|
|
cbw
|
|
jmp disasm_write_num_done
|
|
.op16:
|
|
xor eax, eax
|
|
call disasm_get_word
|
|
jmp disasm_write_num_done
|
|
|
|
cshld:
|
|
cshrd:
|
|
mov edx, 'shld'
|
|
test al, 8
|
|
jz @f
|
|
mov edx, 'shrd'
|
|
@@:
|
|
xchg eax, edx
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
push eax
|
|
or ch, 80h
|
|
call disasm_readrmop
|
|
mov ax, ', '
|
|
stosw
|
|
pop eax
|
|
call disasm_write_reg1632
|
|
mov ax, ', '
|
|
stosw
|
|
test dl, 1
|
|
jz disasm_i8u
|
|
mov ax, 'cl'
|
|
stosw
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
ccbw:
|
|
mov eax, 'cbw '
|
|
test ch, 1
|
|
jnz @f
|
|
mov eax, 'cwde'
|
|
@@: stosd
|
|
and byte [edi+1], 0
|
|
ret
|
|
ccwd:
|
|
mov eax, 'cwd '
|
|
test ch, 1
|
|
jnz @b
|
|
mov eax, 'cdq '
|
|
jmp @b
|
|
|
|
fpuD8 dd 'add ','mul ','com ','comp','sub ','subr','div ','divr'
|
|
|
|
cD8:
|
|
call disasm_get_byte
|
|
dec [disasm_cur_pos]
|
|
push eax
|
|
shr al, 3
|
|
and eax, 7
|
|
mov byte [edi], 'f'
|
|
inc edi
|
|
xchg eax, edx
|
|
mov eax, [fpuD8+edx*4]
|
|
stosd
|
|
mov ax, ' '
|
|
stosw
|
|
stosb
|
|
pop eax
|
|
cmp dl, 2
|
|
jb .1
|
|
cmp dl, 3
|
|
jbe .2
|
|
.1:
|
|
cmp al, 0xC0
|
|
jb .2
|
|
mov eax, 'st0,'
|
|
stosd
|
|
mov al, ' '
|
|
stosb
|
|
.2:
|
|
or ch, 80h or 20h
|
|
and ch, not 1
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
fpuD9_2:
|
|
dq 'fchs ','fabs ',0,0,'ftst ','fxam ',0,0
|
|
db 'fld1 fldl2t fldl2e fldpi fldlg2 fldln2 fldz '
|
|
dq 0
|
|
db 'f2xm1 fyl2x fptan fpatan fxtract fprem1 fdecstp fincstp '
|
|
db 'fprem fyl2xp1 fsqrt fsincos frndint fscale fsin fcos '
|
|
fpuD9_fnop db 'fnop '
|
|
cD9:
|
|
call disasm_get_byte
|
|
sub al, 0xC0
|
|
jae .l1
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
cmp al, 7
|
|
jnz @f
|
|
mov eax, 'fnst'
|
|
stosd
|
|
mov eax, 'cw '
|
|
jmp .x1
|
|
@@:
|
|
cmp al, 5
|
|
jnz @f
|
|
mov eax, 'fldc'
|
|
stosd
|
|
mov eax, 'w '
|
|
.x1:
|
|
stosd
|
|
or ch, 0C1h
|
|
jmp .cmn
|
|
@@:
|
|
mov edx, 'fld '
|
|
test al, al
|
|
jz @f
|
|
mov edx, 'fst '
|
|
cmp al, 2
|
|
jz @f
|
|
mov edx, 'fstp'
|
|
cmp al, 3
|
|
jnz cunk
|
|
@@:
|
|
xchg eax, edx
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
or ch, 80h
|
|
and ch, not 1
|
|
.cmn:
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
.l1:
|
|
cmp al, 10h
|
|
jae .l2
|
|
mov edx, 'fld '
|
|
cmp al, 8
|
|
jb @f
|
|
mov edx, 'fxch'
|
|
@@:
|
|
xchg eax, edx
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
xchg eax, edx
|
|
and al, 7
|
|
add al, '0'
|
|
shl eax, 16
|
|
mov ax, 'st'
|
|
stosd
|
|
clc
|
|
ret
|
|
.l2:
|
|
cmp al, 0x10
|
|
jnz @f
|
|
mov esi, fpuD9_fnop
|
|
jmp .l3
|
|
@@:
|
|
sub al, 0x20
|
|
jb cerr
|
|
lea esi, [fpuD9_2+eax*8]
|
|
cmp byte [esi], 0
|
|
jz cerr
|
|
.l3:
|
|
movsd
|
|
movsd
|
|
and byte [edi-1], 0
|
|
ret
|
|
|
|
cDA:
|
|
call disasm_get_byte
|
|
cmp al, 0xC0
|
|
jae cunk
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
mov word [edi], 'fi'
|
|
inc edi
|
|
inc edi
|
|
mov eax, [fpuD8+eax*4]
|
|
stosd
|
|
mov ax, ' '
|
|
stosw
|
|
or ch, 80h
|
|
and ch, not 1 ; 32-bit operand
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
fpuDB dd 'ild ',0,'ist ','istp',0,'ld ',0,'stp '
|
|
cDB:
|
|
call disasm_get_byte
|
|
cmp al, 0xC0
|
|
jae .1
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
xchg eax, edx
|
|
mov eax, [fpuDB+edx*4]
|
|
test eax, eax
|
|
jz cerr
|
|
mov byte [edi], 'f'
|
|
inc edi
|
|
stosd
|
|
mov ax, ' '
|
|
stosw
|
|
stosb
|
|
or ch, 80h
|
|
and ch, not 1 ; 32-bit operand
|
|
cmp dl, 4
|
|
jb @f
|
|
or ch, 20h
|
|
and ch, not 80h ; 80-bit operand
|
|
@@:
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
.1:
|
|
cmp al, 0xE3
|
|
jnz cunk
|
|
mov eax, 'fnin'
|
|
stosd
|
|
mov eax, 'it'
|
|
stosd
|
|
dec edi
|
|
ret ; CF cleared
|
|
|
|
fpuDC dd 'add ','mul ',0,0,'subr','sub ','divr','div '
|
|
cDC:
|
|
call disasm_get_byte
|
|
cmp al, 0xC0
|
|
jae .1
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
mov byte [edi], 'f'
|
|
inc edi
|
|
mov eax, [fpuD8+eax*4]
|
|
stosd
|
|
mov ax, ' '
|
|
stosw
|
|
stosb
|
|
or ch, 0A1h ; qword
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
.1:
|
|
mov dl, al
|
|
shr al, 3
|
|
and eax, 7
|
|
mov eax, [fpuDC+eax*4]
|
|
test eax, eax
|
|
jz cerr
|
|
mov byte [edi], 'f'
|
|
inc edi
|
|
stosd
|
|
mov eax, ' s'
|
|
stosd
|
|
mov al, 't'
|
|
stosb
|
|
and edx, 7
|
|
lea eax, [edx+'0']
|
|
stosb
|
|
mov eax, ', st'
|
|
stosd
|
|
mov ax, '0'
|
|
stosw
|
|
ret ; CF cleared
|
|
|
|
fpuDD dd 'fld ',0,'fst ','fstp',0,0,0,0
|
|
fpuDD_2 dq 'ffree ',0,'fst ','fstp ','fucom ','fucomp ',0,0
|
|
cDD:
|
|
call disasm_get_byte
|
|
cmp al, 0xC0
|
|
jae .1
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
xchg eax, edx
|
|
mov eax, [fpuDD+edx*4]
|
|
test eax, eax
|
|
jz cunk
|
|
stosd
|
|
mov eax, ' '
|
|
stosd
|
|
or ch, 0A1h ; qword operand
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
.1:
|
|
push eax
|
|
shr al, 3
|
|
and eax, 7
|
|
xchg eax, edx
|
|
mov eax, dword [fpuDD_2+edx*8]
|
|
test eax, eax
|
|
jz cerr
|
|
stosd
|
|
mov eax, dword [fpuDD_2+4+edx*8]
|
|
stosd
|
|
mov ax, 'st'
|
|
stosw
|
|
pop eax
|
|
and al, 7
|
|
add al, '0'
|
|
stosb
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
fpuDE dd 'add ','mul ',0,0,'subr','sub ','divr','div '
|
|
cDE:
|
|
call disasm_get_byte
|
|
cmp al, 0xC0
|
|
jae .1
|
|
dec [disasm_cur_pos]
|
|
mov word [edi], 'fi'
|
|
inc edi
|
|
inc edi
|
|
shr al, 3
|
|
and eax, 7
|
|
mov eax, [fpuD8+eax*4]
|
|
stosd
|
|
mov ax, ' '
|
|
stosw
|
|
or ch, 81h ; force 16-bit
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
.1:
|
|
push eax
|
|
shr al, 3
|
|
and eax, 7
|
|
xchg eax, edx
|
|
mov eax, [fpuDE+edx*4]
|
|
test eax, eax
|
|
jz .fcompp
|
|
mov byte [edi], 'f'
|
|
inc edi
|
|
stosd
|
|
mov al, 'p'
|
|
cmp byte [edi-1], ' '
|
|
jnz @f
|
|
mov byte [edi-1], al
|
|
mov al, ' '
|
|
@@: stosb
|
|
mov eax, ' st'
|
|
stosd
|
|
pop eax
|
|
and al, 7
|
|
add al, '0'
|
|
stosb
|
|
mov ax, ', '
|
|
stosw
|
|
mov eax, 'st0'
|
|
stosd
|
|
ret ; CF cleared
|
|
.fcompp:
|
|
pop eax
|
|
cmp al, 0xD9
|
|
jnz cerr
|
|
mov eax, 'fcom'
|
|
stosd
|
|
mov ax, 'pp'
|
|
stosw
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
fpuDF dd 'ild ',0,'ist ','istp','bld ','ild ','bstp','istp'
|
|
|
|
cDF:
|
|
call disasm_get_byte
|
|
cmp al, 0xC0
|
|
jae .1
|
|
dec [disasm_cur_pos]
|
|
shr al, 3
|
|
and eax, 7
|
|
xchg eax, edx
|
|
mov eax, [fpuDF+edx*4]
|
|
test eax, eax
|
|
jz cerr
|
|
mov byte [edi], 'f'
|
|
inc edi
|
|
stosd
|
|
mov ax, ' '
|
|
stosw
|
|
stosb
|
|
or ch, 81h ; force 16-bit operand
|
|
cmp dl, 4
|
|
jb @f
|
|
or ch, 20h
|
|
test dl, 1
|
|
jnz @f
|
|
or ch, 40h
|
|
@@:
|
|
call disasm_readrmop
|
|
and byte [edi], 0
|
|
ret
|
|
.1:
|
|
cmp al, 0xE0
|
|
jnz cunk
|
|
mov eax, 'fnst'
|
|
stosd
|
|
mov eax, 'sw '
|
|
stosd
|
|
mov ax, 'ax'
|
|
stosw
|
|
and byte [edi], 0
|
|
ret
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; DATA ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
caption_str db 'Kolibri Debugger',0
|
|
caption_len = $ - caption_str
|
|
begin_str db 'Kolibri Debugger, version 0.2',10
|
|
db 'Hint: type "help" for help, "quit" for quit'
|
|
newline db 10,0
|
|
prompt db '> ',0
|
|
|
|
help_groups:
|
|
dd aControl, 0, 0, help_control_msg
|
|
db 0
|
|
dd aData, 0, 0, help_data_msg
|
|
db 0
|
|
dd aBreakpoints, 0, 0, help_breaks_msg
|
|
db 0
|
|
; flags field:
|
|
; &1: command may be called without parameters
|
|
; &2: command may be called with parameters
|
|
; &4: command may be called without loaded program
|
|
; &8: command may be called with loaded program
|
|
commands:
|
|
dd _aH, OnHelp, HelpSyntax, HelpHelp
|
|
db 0Fh
|
|
dd aHelp, OnHelp, HelpSyntax, HelpHelp
|
|
db 0Fh
|
|
dd aQuit, OnQuit, QuitSyntax, QuitHelp
|
|
db 0Dh
|
|
dd aLoad, OnLoad, LoadSyntax, LoadHelp
|
|
db 6
|
|
dd aReload, OnReload, ReloadSyntax, ReloadHelp
|
|
db 0Dh
|
|
dd aTerminate, OnTerminate, TerminateSyntax, TerminateHelp
|
|
db 9
|
|
dd aDetach, OnDetach, DetachSyntax, DetachHelp
|
|
db 9
|
|
dd aSuspend, OnSuspend, SuspendSyntax, SuspendHelp
|
|
db 9
|
|
dd aResume, OnResume, ResumeSyntax, ResumeHelp
|
|
db 0Bh
|
|
dd aStep, OnStep, StepSyntax, StepHelp
|
|
db 9
|
|
dd aProceed, OnProceed, ProceedSyntax, ProceedHelp
|
|
db 9
|
|
dd aCalc, OnCalc, CalcSyntax, CalcHelp
|
|
db 0Eh
|
|
dd aDump, OnDump, DumpSyntax, DumpHelp
|
|
db 0Bh
|
|
dd aUnassemble, OnUnassemble, UnassembleSyntax, UnassembleHelp
|
|
db 0Bh
|
|
dd aBp, OnBp, BpSyntax, BpHelp
|
|
db 0Ah
|
|
dd aBpm, OnBpmb, BpmSyntax, BpmHelp
|
|
db 0Ah
|
|
dd aBpmb, OnBpmb, BpmSyntax, BpmHelp
|
|
db 0Ah
|
|
dd aBpmw, OnBpmw, BpmSyntax, BpmHelp
|
|
db 0Ah
|
|
dd aBpmd, OnBpmd, BpmSyntax, BpmHelp
|
|
db 0Ah
|
|
dd aBl, OnBl, BlSyntax, BlHelp
|
|
db 0Bh
|
|
dd aBc, OnBc, BcSyntax, BcHelp
|
|
db 0Ah
|
|
dd aBd, OnBd, BdSyntax, BdHelp
|
|
db 0Ah
|
|
dd aBe, OnBe, BeSyntax, BeHelp
|
|
db 0Ah
|
|
dd aReg, OnReg, RSyntax, RHelp
|
|
db 0Ah
|
|
dd aUnpack, OnUnpack, UnpackSyntax, UnpackHelp
|
|
db 9
|
|
dd 0
|
|
aHelp db 5,'help',0
|
|
_aH db 2,'h',0
|
|
HelpHelp db 'Help on specified function',10
|
|
HelpSyntax db 'Usage: h or help [group | command]',10,0
|
|
|
|
help_msg db 'List of known command groups:',10
|
|
db '"help control" - display list of control commands',10
|
|
db '"help data" - display list of commands concerning data',10
|
|
db '"help breakpoints" - display list of commands concerning breakpoints',10,0
|
|
aControl db 8,'control',0
|
|
help_control_msg db 'List of control commands:',10
|
|
db 'h = help - help',10
|
|
db 'quit - exit from debugger',10
|
|
db 'load <name> [params] - load program for debugging',10
|
|
db 'reload - reload debugging program',10
|
|
db 'terminate - terminate loaded program',10
|
|
db 'detach - detach from debugging program',10
|
|
db 'stop - suspend execution of debugging program',10
|
|
db 'g [<expression>] - go on (resume execution of debugging program)',10
|
|
db 's = <Ctrl+F7> - program step',10
|
|
db 'p = <Ctrl+F8> - program wide step',10
|
|
db 'unpack - try to bypass unpacker code (heuristic)',10,0
|
|
aData db 5,'data',0
|
|
help_data_msg db 'List of data commands:',10
|
|
db '? <expression> - calculate value of expression',10
|
|
db 'd [<expression>] - dump data at given address',10
|
|
db 'u [<expression>] - unassemble instructions at given address',10
|
|
db 'r <register> <expression> or',10
|
|
db 'r <register>=<expression> - set register value',10,0
|
|
aBreakpoints db 12,'breakpoints',0
|
|
help_breaks_msg db 'List of breakpoints commands:',10
|
|
db 'bp <expression> - set breakpoint on execution',10
|
|
db 'bpm[b|w|d] <type> <expression> - set breakpoint on memory access',10
|
|
db 'bl [<number>] - breakpoint(s) info',10
|
|
db 'bc <number>... - clear breakpoint',10
|
|
db 'bd <number>... - disable breakpoint',10
|
|
db 'be <number>... - enable breakpoint',10,0
|
|
|
|
aQuit db 5,'quit',0
|
|
QuitHelp db 'Quit from debugger',10
|
|
QuitSyntax db 'Usage: quit',10,0
|
|
|
|
aLoad db 5,'load',0
|
|
LoadHelp db 'Load program for debugging',10
|
|
LoadSyntax db 'Usage: load <program-name> [parameters]',10,0
|
|
|
|
aReload db 7,'reload',0
|
|
ReloadHelp db 'Reload debugging program (restart debug session)',10
|
|
ReloadSyntax db 'Usage: reload',10,0
|
|
|
|
aTerminate db 10,'terminate',0
|
|
TerminateHelp db 'Terminate debugged program',10
|
|
TerminateSyntax db 'Usage: terminate',10,0
|
|
|
|
aDetach db 7,'detach',0
|
|
DetachHelp db 'Detach from debugged program',10
|
|
DetachSyntax db 'Usage: detach',10,0
|
|
|
|
aSuspend db 5,'stop',0
|
|
SuspendHelp db 'Suspend execution of debugged program',10
|
|
SuspendSyntax db 'Usage: stop',10,0
|
|
|
|
aResume db 2,'g',0
|
|
ResumeHelp db 'Go (resume execution of debugged program)',10
|
|
ResumeSyntax db 'Usage: g',10
|
|
db ' or: g <expression> - wait until specified address is reached',10,0
|
|
|
|
aStep db 2,'s',0
|
|
StepHelp db 'Make step in debugged program',10
|
|
StepSyntax db 'Usage: s',10,0
|
|
|
|
aProceed db 2,'p',0
|
|
ProceedHelp db 'Make wide step in debugged program (step over CALL, REPxx, LOOP)',10
|
|
ProceedSyntax db 'Usage: p',10,0
|
|
|
|
aDump db 2,'d',0
|
|
DumpHelp db 'Dump data of debugged program',10
|
|
DumpSyntax db 'Usage: d <expression> - dump data at specified address',10
|
|
db ' or: d - continue current dump',10,0
|
|
|
|
aCalc db 2,'?',0
|
|
CalcHelp db 'Calculate value of expression',10
|
|
CalcSyntax db 'Usage: ? <expression>',10,0
|
|
|
|
aUnassemble db 2,'u',0
|
|
UnassembleHelp db 'Unassemble',10
|
|
UnassembleSyntax:
|
|
db 'Usage: u <expression> - unassemble instructions at specified address',10
|
|
db ' or: u - continue current unassemble screen',10,0
|
|
|
|
aReg db 2,'r',0
|
|
RHelp db 'Set register value',10
|
|
RSyntax:
|
|
db 'Usage: r <register> <expression>',10
|
|
db ' or: r <register>=<expression> - set value of <register> to <expression>',10,0
|
|
|
|
aBp db 3,'bp',0
|
|
BpHelp db 'set BreakPoint on execution',10
|
|
BpSyntax db 'Usage: bp <expression>',10,0
|
|
|
|
aBpm db 4,'bpm',0
|
|
aBpmb db 5,'bpmb',0
|
|
aBpmw db 5,'bpmw',0
|
|
aBpmd db 5,'bpmd',0
|
|
BpmHelp db 'set BreakPoint on Memory access',10
|
|
db 'Maximum 4 breakpoints of this type are allowed',10
|
|
db 'Note that for this breaks debugger is activated after access',10
|
|
BpmSyntax db 'Usage: bpmb [w] <expression>',10
|
|
db ' bpmw [w] <expression>',10
|
|
db ' bpmd [w] <expression>',10
|
|
db ' bpm is synonym for bpmd',10
|
|
db '"w" means break only on writes (default is on read/write)',10,0
|
|
|
|
aBl db 3,'bl',0
|
|
BlHelp db 'Breakpoint List',10
|
|
BlSyntax db 'Usage: bl - list all breakpoints',10
|
|
db ' bl <number> - display info on particular breakpoint',10,0
|
|
|
|
aBc db 3,'bc',0
|
|
BcHelp db 'Breakpoint Clear',10
|
|
BcSyntax db 'Usage: bc <number-list>',10
|
|
db 'Examples: bc 2',10
|
|
db ' bc 1 3 4 A',10,0
|
|
|
|
aBd db 3,'bd',0
|
|
BdHelp db 'Breakpoint Disable',10
|
|
BdSyntax db 'Usage: bd <number-list>',10
|
|
db 'Examples: bd 2',10
|
|
db ' bd 1 3 4 A',10,0
|
|
|
|
aBe db 3,'be',0
|
|
BeHelp db 'Breakpoint Enable',10
|
|
BeSyntax db 'Usage: be <number-list>',10
|
|
db 'Examples: be 2',10
|
|
db ' be 1 3 4 A',10,0
|
|
|
|
aUnpack db 7,'unpack',0
|
|
UnpackHelp db 'Try to bypass unpacker code',10
|
|
UnpackSyntax db 'Usage: unpack',10,0
|
|
|
|
aUnknownCommand db 'Unknown command',10,0
|
|
|
|
load_err_msg db 'Cannot load program. ',0
|
|
unk_err_msg db 'Unknown error code -%4X',10,0
|
|
load_err_msgs:
|
|
dd .1, 0, .3, 0, .5, .6, 0, 0, .9, .A, 0, 0, 0, 0, 0, 0
|
|
dd 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, .1E, .1F, .20
|
|
.1 db 'HD undefined.',10,0
|
|
.3 db 'Unknown FS.',10,0
|
|
.5 db 'File not found.',10,0
|
|
.6 db 'Unexpected EOF.',10,0
|
|
.9 db 'FAT table corrupted.',10,0
|
|
.A db 'Access denied.',10,0
|
|
.1E db 'No memory.',10,0
|
|
.1F db 'Not Menuet/Kolibri executable.',10,0
|
|
.20 db 'Too many processes.',10,0
|
|
load_succ_msg db 'Program loaded successfully! PID=%4X. Use "g" to run.',10,0
|
|
need_debuggee db 'No program loaded. Use "load" command.',10,0
|
|
aAlreadyLoaded db 'Program is already loaded. Use "terminate" or "detach" commands',10,0
|
|
terminated_msg db 'Program terminated.',10,0
|
|
aException db 'Debugged program caused an exception %2X. '
|
|
aSuspended db 'Suspended',10,0
|
|
aContinued db 'Continuing',10,0
|
|
aRunningErr db 'Program is running',10,0
|
|
read_mem_err db 'ERROR: cannot read process memory!!!',10,0
|
|
aBreakpointLimitExceeded db 'Breakpoint limit exceeded',10,0
|
|
aBreakErr db 'Cannot activate breakpoint, it will be disabled',10,0
|
|
aDuplicateBreakpoint db 'Duplicate breakpoint',10,0
|
|
aInvalidBreak db 'Invalid breakpoint number',10,0
|
|
OnBeErrMsg db 'There is already enabled breakpoint on this address',10,0
|
|
aBreakNum db '%2X: at %8X',0
|
|
aMemBreak1 db '%2X: on ',0
|
|
aMemBreak2 db 'read from ',0
|
|
aMemBreak3 db 'access of ',0
|
|
aMemBreak4 db 'byte',0
|
|
aMemBreak5 db 'word',0
|
|
aMemBreak6 db 'dword',0
|
|
aMemBreak7 db ' at %8X',0
|
|
aOneShot db ', one-shot',0
|
|
aDisabled db ', disabled',0
|
|
aBreakStop db 'Breakpoint #%2X',10,0
|
|
aUserBreak db 'int3 command at %8X',10,0
|
|
;dbgmsg_str db 'Debug message for process %4X.',10,0
|
|
aInvAddr db 'Invalid address',10,0
|
|
NoPrgLoaded_str db 'No program loaded'
|
|
NoPrgLoaded_len = $ - NoPrgLoaded_str
|
|
aRunning db 'Running'
|
|
aPaused db 'Paused'
|
|
aPoint db 0x1C
|
|
aMinus db '-'
|
|
aColon db ':'
|
|
aQuests db '??'
|
|
aDots db '...'
|
|
aParseError db 'Parse error',10,0
|
|
aDivByZero db 'Division by 0',10,0
|
|
calc_string db '%8X',10,0
|
|
aUnaligned db 'Unaligned address',10,0
|
|
aEnabledBreakErr db 'Enabled breakpoints are not allowed',10,0
|
|
aInterrupted db 'Interrupted',10,0
|
|
aUnpacked db 'Unpacked successful!',10,0
|
|
aPacked1 db 'Program is probably packed with ',0
|
|
aPacked2 db '.',10,'Try to unpack automatically? [y/n]: ',0
|
|
aY_str db 'y',10,0
|
|
aN_str db 'n',10,0
|
|
mxp_nrv_name db 'mxp_nrv',0
|
|
mxp_name db 'mxp',0
|
|
mxp_lzo_name db 'mxp_lzo',0
|
|
mtappack_name db 'mtappack',0
|
|
flags db 'CPAZSDO'
|
|
flags_bits db 0,2,4,6,7,10,11
|
|
regs_strs:
|
|
db 'EAX='
|
|
db 'EBX='
|
|
db 'ECX='
|
|
db 'EDX='
|
|
db 'ESI='
|
|
db 'EDI='
|
|
db 'EBP='
|
|
db 'ESP='
|
|
db 'EIP='
|
|
db 'EFLAGS='
|
|
|
|
debuggee_pid dd 0
|
|
bSuspended db 0
|
|
bAfterGo db 0
|
|
temp_break dd 0
|
|
|
|
disasm_table_1:
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cop0 ; 0x
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cF
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cop0 ; 1x
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cop0
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, cseges,cop0 ; 2x
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, csegcs,cop0
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, csegss,cop0 ; 3x
|
|
dd cop22, cop22, cop22, cop22, cop21, cop21, csegds,cop0
|
|
dd cinc1, cinc1, cinc1, cinc1, cinc1, cinc1, cinc1, cinc1 ; 4x
|
|
dd cdec1, cdec1, cdec1, cdec1, cdec1, cdec1, cdec1, cdec1
|
|
dd cpush1,cpush1,cpush1,cpush1,cpush1,cpush1,cpush1,cpush1 ; 5x
|
|
dd cpop1, cpop1, cpop1, cpop1, cpop1, cpop1, cpop1, cpop1
|
|
dd cop0, cop0, cunk, cunk, csegfs,cseggs,c66, c67 ; 6x
|
|
dd cpush21,cimul1,cpush22,cimul1,cunk,cunk, cunk, cunk
|
|
dd cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1 ; 7x
|
|
dd cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1
|
|
dd cop23, cop23, cop23, cop23, cop22, cop22, cop22, cop22 ; 8x
|
|
dd cop22, cop22, cop22, cop22, cunk, cop22, cunk, cpop2
|
|
dd cop0, cxchg1,cxchg1,cxchg1,cxchg1,cxchg1,cxchg1,cxchg1 ; 9x
|
|
dd ccbw, ccwd, cunk, cop0, cop0, cop0, cop0, cop0
|
|
dd cmov3, cmov3, cmov3, cmov3, cop0, cop0, cop0, cop0 ; Ax
|
|
dd cop21, cop21, cop0, cop0, cop0, cop0, cop0, cop0
|
|
dd cmov11,cmov11,cmov11,cmov11,cmov11,cmov11,cmov11,cmov11 ; Bx
|
|
dd cmov12,cmov12,cmov12,cmov12,cmov12,cmov12,cmov12,cmov12
|
|
dd cshift1,cshift1,cret2,cop0, cunk, cunk, cmov2, cmov2 ; Cx
|
|
dd center,cop0, cunk, cunk, cop0, cint, cunk, cunk
|
|
dd cshift2,cshift2,cshift3,cshift3,caam,cunk,cunk, cxlat ; Dx
|
|
dd cD8, cD9, cDA, cDB, cDC, cDD, cDE, cDF
|
|
dd cloopnz,cloopz,cloop,cjcxz, cunk, cunk, cunk, cunk ; Ex
|
|
dd ccall1,cjmp1, cunk, cjmp2, cunk, cunk, cunk, cunk
|
|
dd clock, cunk, crepnz,crep, cunk, cop0, cop1, cop1 ; Fx
|
|
dd cop0, cop0, cop0, cop0, cop0, cop0, cop1, cop1
|
|
|
|
disasm_table_2:
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 0x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 1x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 2x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, crdtsc,cunk, cunk, csysenter,cunk,cunk, cunk ; 3x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 4x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 5x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 6x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 7x
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2 ; 8x
|
|
dd cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2
|
|
dd csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc ; 9x
|
|
dd csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc
|
|
dd cunk, cunk, ccpuid,cbtx2, cshld, cshld, cunk, cunk ; Ax
|
|
dd cunk, cunk, cunk, cbtx2, cshrd, cshrd, cunk, cop22
|
|
dd ccmpxchg,ccmpxchg,cunk,cbtx2,cunk, cunk, cmovzx,cmovzx ; Bx
|
|
dd cunk, cunk, cbtx1, cbtx2, cbsf, cbsr, cmovsx,cmovsx
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, ccmpxchg8b ; Cx
|
|
dd cbswap,cbswap,cbswap,cbswap,cbswap,cbswap,cbswap,cbswap
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; Dx
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; Ex
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; Fx
|
|
dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
|
|
|
|
reg_table:
|
|
db 2,'al',0
|
|
db 2,'cl',1
|
|
db 2,'dl',2
|
|
db 2,'bl',3
|
|
db 2,'ah',4
|
|
db 2,'ch',5
|
|
db 2,'dh',6
|
|
db 2,'bh',7
|
|
db 2,'ax',8
|
|
db 2,'cx',9
|
|
db 2,'dx',10
|
|
db 2,'bx',11
|
|
db 2,'sp',12
|
|
db 2,'bp',13
|
|
db 2,'si',14
|
|
db 2,'di',15
|
|
db 3,'eax',16
|
|
db 3,'ecx',17
|
|
db 3,'edx',18
|
|
db 3,'ebx',19
|
|
db 3,'esp',20
|
|
db 3,'ebp',21
|
|
db 3,'esi',22
|
|
db 3,'edi',23
|
|
db 3,'eip',24
|
|
db 0
|
|
|
|
fn70_load_block:
|
|
dd 7
|
|
dd 1
|
|
load_params dd 0
|
|
dd 0
|
|
dd 0
|
|
i_end:
|
|
loadname:
|
|
db 0
|
|
rb 255
|
|
|
|
prgname_ptr dd ?
|
|
prgname_len dd ?
|
|
|
|
dbgwnd dd ?
|
|
|
|
messages rb messages_height*messages_width
|
|
messages_pos dd ?
|
|
|
|
cmdline rb cmdline_width+1
|
|
cmdline_len dd ?
|
|
cmdline_pos dd ?
|
|
curarg dd ?
|
|
|
|
was_temp_break db ?
|
|
|
|
dbgbufsize dd ?
|
|
dbgbuflen dd ?
|
|
dbgbuf rb 256
|
|
|
|
needzerostart:
|
|
|
|
context:
|
|
_eip dd ?
|
|
_eflags dd ?
|
|
_eax dd ?
|
|
_ecx dd ?
|
|
_edx dd ?
|
|
_ebx dd ?
|
|
_esp dd ?
|
|
_ebp dd ?
|
|
_esi dd ?
|
|
_edi dd ?
|
|
|
|
oldcontext rb $-context
|
|
|
|
dumpread dd ?
|
|
dumppos dd ?
|
|
dumpdata rb dump_height*10h
|
|
|
|
; breakpoint structure:
|
|
; dword +0: address
|
|
; byte +4: flags
|
|
; bit 0: 1 <=> breakpoint valid
|
|
; bit 1: 1 <=> breakpoint disabled
|
|
; bit 2: 1 <=> one-shot breakpoint
|
|
; bit 3: 1 <=> DRx breakpoint
|
|
; byte +5: overwritten byte
|
|
; for DRx breaks: flags + (index shl 6)
|
|
breakpoints_n = 256
|
|
breakpoints rb breakpoints_n*6
|
|
drx_break rd 4
|
|
|
|
disasm_buf_size dd ?
|
|
|
|
bReload db ?
|
|
|
|
needzeroend:
|
|
|
|
disasm_buffer rb 256
|
|
disasm_start_pos dd ?
|
|
disasm_cur_pos dd ?
|
|
disasm_cur_str dd ?
|
|
disasm_string rb 256
|
|
|
|
i_param rb 256
|
|
|
|
; stack
|
|
align 400h
|
|
rb 400h
|
|
used_mem:
|