forked from KolibriOS/kolibrios
162 lines
3.7 KiB
NASM
162 lines
3.7 KiB
NASM
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include 'proc32.inc'
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DLL_ENTRY equ 1
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DLL_EXIT equ -1
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REQ_DLL_VER equ 2
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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 mem
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dd mem
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dd 0
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dd 0
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start:
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stdcall load_dll_and_import, dllname, imports
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test eax, eax
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jz exit
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; check version
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cmp word [dll_ver], REQ_DLL_VER
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jb exit
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cmp word [dll_ver+2], REQ_DLL_VER
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ja exit
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push DLL_ENTRY
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call [dll_start]
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; yes! Now do some work (show color strings in this case).
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push caption
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push -1
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push -1
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push -1
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push -1
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call [con_init]
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; C-equivalent of the following code:
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; for (ebx=0;ebx<0x100;ebx++)
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; {
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; con_printf(t1,ebx);
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; eax = con_set_flags(ebx);
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; con_write_asciiz(text);
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; con_set_flags(eax);
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; }
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; N.B. For efficiency result of first con_set_flags is not saved
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; in register, but is pushed beforehand to the stack
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; for second con_set_flags.
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; Note that such code cannot be generated by stdcall macros.
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xor ebx, ebx
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@@:
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push ebx
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push t1
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call [con_printf]
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add esp, 8
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push ebx
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call [con_set_flags]
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push eax
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push text
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call [con_write_asciiz]
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call [con_set_flags]
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inc bl
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jnz @b
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push text2
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call [con_write_asciiz]
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push 0
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call [con_exit]
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exit:
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or eax, -1
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int 0x40
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proc load_dll_and_import stdcall, _dllname:dword, _imports:dword
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pushad
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; load DLL
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push 68
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pop eax
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push 19
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pop ebx
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mov ecx, [_dllname]
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int 0x40
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test eax, eax
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jz import_fail
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; initialize import
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mov edi, eax
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mov esi, [_imports]
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import_loop:
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lodsd
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test eax, eax
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jz import_done
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mov edx, edi
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import_find:
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mov ebx, [edx]
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test ebx, ebx
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jz import_not_found
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push eax
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@@:
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mov cl, [eax]
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cmp cl, [ebx]
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jnz import_find_next
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test cl, cl
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jz import_found
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inc eax
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inc ebx
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jmp @b
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import_find_next:
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pop eax
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add edx, 8
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jmp import_find
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import_found:
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pop eax
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mov eax, [edx+4]
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mov [esi-4], eax
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jmp import_loop
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import_not_found:
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import_fail:
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popad
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xor eax, eax
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ret
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import_done:
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popad
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xor eax, eax
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inc eax
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ret
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endp
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align 4
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imports:
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dll_start dd szStart
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dll_ver dd szVersion
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con_init dd szcon_init
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con_write_asciiz dd szcon_write_asciiz
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con_printf dd szcon_printf
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con_set_flags dd szcon_set_flags
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con_exit dd szcon_exit
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dd 0
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szStart db 'START',0
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szVersion db 'version',0
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szcon_init db 'con_init',0
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szcon_write_asciiz db 'con_write_asciiz',0
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szcon_printf db 'con_printf',0
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szcon_set_flags db 'con_set_flags',0
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szcon_exit db 'con_exit',0
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dllname db '/sys/lib/console.obj',0
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caption db 'Console test - colors',0
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t1 db '<27><><EFBFBD><EFBFBD> 0x%02X: ',0
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text db '<27><><EFBFBD> <20>ਬ<EFBFBD><E0A8AC> ⥪<><E2A5AA><EFBFBD>.',10,0
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text2 db 27,'[7m<37> <20><><EFBFBD> <20>ਬ<EFBFBD><E0A8AC> <20>ᯮ<EFBFBD>짮<EFBFBD><ECA7AE><EFBFBD><EFBFBD><EFBFBD> '
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db 27,'[1;36;41mEsc'
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db 27,'[7m-<2D><><EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮<E2A5AB>⥩.',10,0
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i_end:
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align 4
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rb 2048 ; stack
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mem:
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