[MASM] CONVERSION EBCDIC VERS ASCII

.586

.model flat,stdcall
option casemap:none

include windows.inc
include user32.inc
include kernel32.inc

includelib user32.lib
includelib kernel32.lib

BUFLENGTH equ 1024

.data
	e2a 	db 0, 1, 2, 3,156, 9,134,127,151,141,142, 11, 12, 13, 14, 15
	db 16, 17, 18, 19,157,133, 8,135, 24, 25,146,143, 28, 29, 30, 31
	db 128,129,130,131,132, 10, 23, 27,136,137,138,139,140, 5, 6, 7
	db 144,145, 22,147,148,149,150, 4,152,153,154,155, 20, 21,158, 26
	db 32,160,161,162,163,164,165,166,167,168, 91, 46, 60, 40, 43, 33
	db 38,169,170,171,172,173,174,175,176,177, 93, 36, 42, 41, 59, 94
	db 45, 47,178,179,180,181,182,183,184,185,124, 44, 37, 95, 62, 63
	db 186,187,188,189,190,191,192,193,194, 96, 58, 35, 64, 39, 61, 34
	db 195, 97, 98, 99,100,101,102,103,104,105,196,197,198,199,200,201
	db 202,106,107,108,109,110,111,112,113,114,203,204,205,206,207,208
	db 209,126,115,116,117,118,119,120,121,122,210,211,212,213,214,215
	db 216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231
	db 123, 65, 66, 67, 68, 69, 70, 71, 72, 73,232,233,234,235,236,237
	db 125, 74, 75, 76, 77, 78, 79, 80, 81, 82,238,239,240,241,242,243
	db 92,159, 83, 84, 85, 86, 87, 88, 89, 90,244,245,246,247,248,249
	db 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,250,251,252,253,254,255
		 
	szINPUTFAIL  db 'Le fichier d''entree n''a pas ete trouve',0
	szOUTPUTFAIL db 'Le fichier de sortie n''a pas pu être créé',0
	szJOBDONE	 db 'Conversion terminée',0
	szAppName 	 db 'Ebcdic2Ascii',0
	szWORKING 	 db 'Working',0
	szIFilename  db "input.txt",0
	szOFilename  db "output.txt",0
.data?
	iFile		dd ?
	oFile		dd ?
	buffer 		db BUFLENGTH dup (?)
.code
start:
	invoke CreateFile,addr szIFilename, GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
	cmp eax, INVALID_HANDLE_VALUE
	jnz short @F
	invoke MessageBox,NULL, addr szINPUTFAIL, addr szAppName, MB_ICONERROR or MB_OK
	push 1
	call ExitProcess
@@:
	mov iFile , eax
	invoke CreateFile,addr szOFilename, GENERIC_WRITE,FILE_SHARE_WRITE or FILE_SHARE_READ , NULL, OPEN_ALWAYS ,FILE_ATTRIBUTE_NORMAL,0
	cmp eax, INVALID_HANDLE_VALUE
	jnz  short @F
	invoke MessageBox,NULL, addr szOUTPUTFAIL, addr szAppName, MB_ICONERROR or MB_OK
	push 1
	call ExitProcess
@@:
	mov  oFile, eax
	lea  ebx, [esp]	
	push NULL
	push ebx
	push BUFLENGTH
	push offset buffer
	push iFile
	call ReadFile
	mov  eax, [ebx]
	test eax, eax
	jz short @endw
	mov esi, offset buffer	
	@while:
		xor edx, edx    
		mov ebx, offset e2a
		push eax
		mov ecx, eax
		@@:
			dec ecx
			mov dl,[esi+ecx] 
			mov eax,[ebx+edx]
			mov [esi+ecx], al
		jnz @B
		pop  eax
		lea  ebx, [esp]
		push NULL
		push ebx
		push eax
		push offset buffer
		push oFile
		call WriteFile
		lea  ebx, [esp]		
		push NULL
		push ebx
		push BUFLENGTH
		push offset buffer
		push iFile
		call ReadFile
		mov  eax, [ebx]
		test eax, eax
		jnz  short @while
	@endw:
	push oFile
	call CloseHandle
	push iFile
	call CloseHandle
	invoke MessageBox,NULL, addr szJOBDONE, addr szAppName, MB_OK or MB_ICONINFORMATION
	push 0
	call ExitProcess
end start