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Index > Compiler Internals > Bug in relative instruction in 64-bit mode
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CandyMan



Joined: 04 Sep 2009
Posts: 413
Location: film "CandyMan" directed through Bernard Rose OR Candy Shop
CandyMan 08 Feb 2014, 22:59
Code:
use64
org 0xFFC00000

include "if.inc"

MainProcedure:
         .if ([Items]=0)|([Count]<>0)
            nop
         .endif
         ret

Items dq ?
Count dq ?

Error: relative jump out of range

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Post 08 Feb 2014, 22:59
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4624
Location: Argentina
LocoDelAssembly 08 Feb 2014, 23:59
Tried the following code with versions 1.71.10, 1.71.17 and 1.71.18, all compiled without trouble.
Code:
use64
org 0xFFC00000

include "macro/if.inc" ; Only change I made

MainProcedure:
         .if ([Items]=0)|([Count]<>0)
            nop
         .endif
         ret

Items dq ?
Count dq ?
Post 08 Feb 2014, 23:59
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baldr



Joined: 19 Mar 2008
Posts: 1651
baldr 09 Feb 2014, 07:20
CandyMan,

There should be something really strange with your version of fasm, I've managed to compile your source with this list of stock Win32 compilers:
Code:
>FASM.EXE out_of_range.fasm
flat assembler  version 1.66
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.68  (1505318 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.69.16  (1504489 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.69.32  (1504900 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.69.48  (1504794 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.69.52  (1502497 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.70  (1502417 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.70.01  (1502540 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.70.02  (1502105 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.70.03  (1501808 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.71.00  (1502867 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.71.04  (1499272 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.71.08  (1500163 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.71.12  (1048576 kilobytes memory)
3 passes, 22 bytes.

>FASM.EXE out_of_range.fasm
flat assembler  version 1.71.16  (1048576 kilobytes memory)
3 passes, 22 bytes.
Pre-1.66 compilers gave me error messages that were unrelated to relative jumps (something with .if macro itself).

Does anybody have intact 1.60 fasm distribution archive?
Post 09 Feb 2014, 07:20
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20298
Location: In your JS exploiting you and your system
revolution 09 Feb 2014, 08:54
baldr wrote:
Does anybody have intact 1.60 fasm distribution archive?
Code:
flat assembler  version 1.60
         .if ([Items]=0)|([Count]<>0)
C:\Documents and Settings\We are the Borg\Our Documents/macro/if.inc [12] .if [7]:
   cmp v1,0
error: invalid operand.
And the same for 1.61. Then:
Code:
flat assembler  version 1.62
         .if ([Items]=0)|([Count]<>0)
C:\Documents and Settings\We are the Borg\Our Documents/macro/if.inc [12] .if [7]:
  JCOND __ELSE,arg
C:\Documents and Settings\We are the Borg\Our Documents/macro/if.inc [95] JCOND [16]:
   cmp v1,v2
error: invalid operand.
And the same for 1.62 through 1.65. Then:
Code:
flat assembler  version 1.66
3 passes, 22 bytes.
Post 09 Feb 2014, 08:54
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CandyMan



Joined: 04 Sep 2009
Posts: 413
Location: film "CandyMan" directed through Bernard Rose OR Candy Shop
CandyMan 09 Feb 2014, 12:11
Change "|" with "&" and try again Embarassed
Code:
use64
org 0xFFC00000

include "macro/if.inc"

MainProcedure:
         .if ([Items]=0)&([Count]<>0)
            nop
         .endif
         ret

Items dq ?
Count dq ?

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Post 09 Feb 2014, 12:11
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l_inc



Joined: 23 Oct 2009
Posts: 881
l_inc 09 Feb 2014, 13:02
Seems in fact to be a bug. Minimal reproducible example:
Code:
use64
org 0x80000000-4
label lbl at @F
jmp lbl
@@:

Here lbl is assumed to be located at 0 and the relative offset overflow is for some reason a non-continuable error. Thus no additional pass is made to resolve the label correctly.

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Post 09 Feb 2014, 13:02
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20298
Location: In your JS exploiting you and your system
revolution 09 Feb 2014, 13:09
'tis now sticky.
Post 09 Feb 2014, 13:09
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8349
Location: Kraków, Poland
Tomasz Grysztar 09 Feb 2014, 13:34
Please check the 1.71.19 development release.
Post 09 Feb 2014, 13:34
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l_inc



Joined: 23 Oct 2009
Posts: 881
l_inc 09 Feb 2014, 13:53
Tomasz Grysztar
I just noticed, that the compiled console version in the archive with 1.71.17 is actually a 1.71.18 .

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Post 09 Feb 2014, 13:53
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8349
Location: Kraków, Poland
Tomasz Grysztar 09 Feb 2014, 13:57
It had been assembled with a wrong version string by mistake, but it not the same as 1.71.18 feature-wise.
Post 09 Feb 2014, 13:57
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l_inc



Joined: 23 Oct 2009
Posts: 881
l_inc 09 Feb 2014, 13:58
Tomasz Grysztar
I checked the irpv support, and it's present there.

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Post 09 Feb 2014, 13:58
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8349
Location: Kraków, Poland
Tomasz Grysztar 09 Feb 2014, 14:01
There was a 1.71.17 package that had a 1.71.18 version string before I even started working on IRPV. The one that you have must be some variant mixed later (probably when I tried to correct that initial mistake).
Post 09 Feb 2014, 14:01
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sid123



Joined: 30 Jul 2013
Posts: 339
Location: Asia, Singapore
sid123 09 Feb 2014, 14:47
Wow this thread is sticky!
Post 09 Feb 2014, 14:47
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HaHaAnonymous



Joined: 02 Dec 2012
Posts: 1178
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HaHaAnonymous 09 Feb 2014, 16:42
[ Post removed by author. ]


Last edited by HaHaAnonymous on 28 Feb 2015, 18:17; edited 1 time in total
Post 09 Feb 2014, 16:42
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DOS386



Joined: 08 Dec 2006
Posts: 1900
DOS386 19 Feb 2014, 16:07
> console version in the archive with 1.71.17 is actually a 1.71.18

same problem 1.71.16-vs-1.71.17 (YES I have both ...)

and there is a strange edit in 1.71.16.5 in BLOCKS.INC :

Code:
        call    set_line
        jc      full_lines_inserted
        jmp     insert_full_lines
    full_lines_inserted:
        pop     edi
        mov     eax,[caret_line]


and a new file "fasm17119.zip\SOURCE\IDE\VERSION.INC 1'859 2014-01-27 15:17" ... maybe "EVERSION.INC" would be better Wink
Post 19 Feb 2014, 16:07
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