The MASM Forum

Quote from: nidud on March 22, 2016, 05:59:08 AM

QuoteBtw your printf "\n" puts out a LF only.

The printf function is written by Vortex (http://masm32.com/board/index.php?topic=2921.msg30585#msg30585) so I guess he skipped that bit. The data storage of "\n" is always 10 (LF) and it is the _write() function that normally adds a "\r" (CR) in front if needed before calling WriteFile().

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printf proc c USES esi edi format:dword, arglist:VARARG
LOCAL buf1[512]:BYTE
LOCAL buf2[256]:BYTE
LOCAL hHandle:DWORD
LOCAL BytesWritten:DWORD

invoke  GetStdHandle,STD_OUTPUT_HANDLE
mov hHandle,eax
invoke wvsprintfA,addr buf1,format,addr arglist
lea esi,buf1
lea edi,buf2
mov edx,edi
.if byte ptr [esi] == 10
mov word ptr [edi],0A0Dh
add edi,2
add esi,1
.endif
lodsb
.while al
.if al == 10 && byte ptr [esi-1] != 13
mov byte ptr [edi],0Dh
add edi,1
.endif
stosb
lodsb
.endw
mov esi,edi
sub esi,edx
lea ecx,BytesWritten
invoke WriteFile,hHandle,edx,esi,ecx,0
mov eax,esi
ret
printf  endp


Using a simple...
start:
  xor ebx, ebx
  .Repeat
print "M32 "
print str$(ebx), 13, 10
inc ebx
  .Until ebx>=3

  xor ebx, ebx
  .Repeat
printf("Crt %d\n", ebx)
inc ebx
  .Until ebx>=3
... you get:
M32 0
M32 1
M32 2
Crt 0
Crt 1
Crt 2

So far, so good. It gets weird when (under Win7-64) you redirect output to a file (see attachment):
pf.exe >pf.txt

M32 0
M32 1
M32 2
Crt 0 Crt 1 Crt 2

In a hex editor, you'll discover 0D0D0A sequences for the Crt prints.

It gets much weirder with this code:
start:
  xor ebx, ebx
  .Repeat
print "M32 "
print str$(ebx), 13, 10
inc ebx
  .Until ebx>=3

  xor ebx, ebx
  .Repeat
printf("Crt %d\n", ebx)
inc ebx
  .Until ebx>=3

  xor ebx, ebx
  .Repeat
print "M32 "
print str$(ebx), 13, 10
inc ebx
  .Until ebx>=3

Console output:
M32 0
M32 1
M32 2
Crt 0
Crt 1
Crt 2
M32 0
M32 1
M32 2

No surprise. But with redirection to a text file, the three Crt prints appear at the end of the text file ::)

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Even with invoke crt_printf, formatstring, number you get the same effect: the crt part appears at the end of the file:
M32 0
M32 1
M32 2
<<< ---- should be here
M32 0
M32 1
M32 2
MB 0
MB 1
MB 2
Crt 0 Crt 1 Crt 2 <<< ---- but gets moved here, with 0d 0d 0a sequences

deleted

Good to know, thanks :t

deleted

deleted

 :biggrin: Hi Jochen,
how are you ?

Hi Rui,
Happy Easter :icon14:
Where have you been all the time??

Hello Jochen

Nice found printf replacement
http://masm32.com/board/index.php?topic=5250.msg56234#msg56234

But it support not Floating point wsprintf does not supporting.

I think is better tu use sprintf

Quotea format string that follows the same specifications as format in printf

Greets,

Quote from: ragdog on March 29, 2016, 03:43:18 PM
Hello Jochen

Nice found printf replacement
http://masm32.com/board/index.php?topic=5250.msg56234#msg56234

But it support not Floating point wsprintf does not supporting.

I think is better tu use sprintf

Quotea format string that follows the same specifications as format in printf

Great :t
Let me know when sprintf starts supporting simple constructs like e.g.

include \masm32\MasmBasic\MasmBasic.inc      ; download (http://masm32.com/board/index.php?topic=94.0)
  Init
  Let edi="\Masm32\include\Windows.inc"
  Let esi=FileRead$(edi)
  Inkey "The file ", edi, Str$(" has %i lines", Count(esi, CrLf$)), Str$(" and %4f kBytes", LastFileSize/1024)
EndOfCode

Output:
The file \Masm32\include\Windows.inc has 26902 lines and 954.5 kBytes

QuoteLet me know when sprintf starts supporting simple constructs like e.g.

Why not?


.data
szStr db "The file \Masm32\include\Windows.inc has",0
kBytes real8 954.5

.code

mov ebx,26902
invoke crt_sprintf,addr plainbuf ,chr$ ("%s %i lines and %.2f kBytes",CR,LF),addr szStr,ebx,kBytes
invoke crt_puts,addr plainbuf


Output


The file \Masm32\include\Windows.inc has 26902 lines and 954.50 kBytes

Waiting for keypress to exit....


MfG

LastFileSize (http://www.webalice.it/jj2006/MasmBasicQuickReference.htm#Mb1050) and Count() (http://www.webalice.it/jj2006/MasmBasicQuickReference.htm#Mb1155) are not global variables, my friend :P

Quote from: jj2007 on March 29, 2016, 08:07:19 AM
Hi Rui,
Happy Easter :icon14:
Where have you been all the time??

Hi Jochen, my life changed a lot, home, wife,city,etc and i never did anything about the calculator since the last time. My computer is not well too.
Nice to see you again. :t :icon14:
Where is Dave ? He is here, do you know ?

Quote
LastFileSize and Count() are not global variables, my friend :P

Ok i understand not MasmBasic  :biggrin:

Quote from: RuiLoureiro on March 30, 2016, 03:31:52 AMHi Jochen, my life changed a lot, home, wife,city,etc and i never did anything about the calculator since the last time. My computer is not well too.

So you got married? How many kids so far? Re computer, remember that penicilline doesn't help against viruses 8)

QuoteNice to see you again. :t :icon14:
Where is Dave ? He is here, do you know ?

Same to you. Dave will show up soon 8)

Quote from: jj2007 on March 30, 2016, 04:17:17 AM

Quote from: RuiLoureiro on March 30, 2016, 03:31:52 AMHi Jochen, my life changed a lot, home, wife,city,etc and i never did anything about the calculator since the last time. My computer is not well too.

So you got married? How many kids so far? Re computer, remember that penicilline doesn't help against viruses 8)

QuoteNice to see you again. :t :icon14:
Where is Dave ? He is here, do you know ?

Same to you. Dave will show up soon 8)

New wife but not married. I have one boy 33 years old ! And you, how many kids, how many wives ? (i guess 10, no ? ah ah ah :biggrin: )

Quote from: RuiLoureiro on April 01, 2016, 07:53:09 AMhow many wives ? (i guess 10, no ?

One is enough :biggrin:

hi Rui   :t

haven't been in here much lately - busy with other things for a while   :(

Quote from: dedndave on April 11, 2016, 03:15:00 AM
hi Rui   :t

haven't been in here much lately - busy with other things for a while   :(

:biggrin: Hi Dave, nice to see you here !  :t