Problem with "dt" !

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DarkLight

Joined: 21 Feb 2009
Posts: 10
Location: Armenia

DarkLight 22 Feb 2009, 15:08

Why FASM report an error in this code:

Code:

format MZ
entry code_seg:start; set entry point
stack 256
segment data_seg
; add your data here!
per_1 db 2,3,4,6,8,2
per_3 dt 9875645
segment code_seg
start:
; set segment registers:
mov ax,data_seg
mov ds,ax
mov es,ax
; add your code here
mov ax,4c00h
int 21h

Here is a error message:

Code:

aram@linux-39o6:~/Documents> fasm PRG_8_2-DOS.asm
flat assembler  version 1.67.33  (16384 kilobytes memory)
PRG_8_2-DOS.asm [7]:
per_3 dt 9875645
error: invalid operand.

With per_3 dt 9,8,7, ... there is no error message.

22 Feb 2009, 15:08

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19103
Location: In your JS exploiting you and your system

revolution 22 Feb 2009, 15:10

Use a decimal point:

Code:

9875645.0

22 Feb 2009, 15:10

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 22 Feb 2009, 15:16

Quote:

With per_3 dt 9,8,7, ... there is no error message.

I have error message with FASMW.

22 Feb 2009, 15:16

DarkLight

Joined: 21 Feb 2009
Posts: 10
Location: Armenia

DarkLight 22 Feb 2009, 15:28

strange, very strange...

22 Feb 2009, 15:28

DarkLight

Joined: 21 Feb 2009
Posts: 10
Location: Armenia

DarkLight 22 Feb 2009, 15:35

LocoDelAssembly wrote:

Quote:

With per_3 dt 9,8,7, ... there is no error message.

I have error message with FASMW.

Try "per_3 dt 9,9,9,9,9,9" ...

22 Feb 2009, 15:35

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19103
Location: In your JS exploiting you and your system

revolution 22 Feb 2009, 15:41

Looks like a fasm bug to me.

dt 9,9 ; ---> 09 00 00 00 00 00 00 00 09 00

22 Feb 2009, 15:41

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19103
Location: In your JS exploiting you and your system

revolution 22 Feb 2009, 15:44

fasm manual wrote:

dt accepts the word and quad word value separated with colon, the quad word is stored first.

Looks like a comma separator also works.

22 Feb 2009, 15:44

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8106
Location: Kraków, Poland

Tomasz Grysztar 22 Feb 2009, 15:45

Yup, it's a bug.
The only valid syntax for this should be dt 9:9

22 Feb 2009, 15:45

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8106
Location: Kraków, Poland

Tomasz Grysztar 22 Feb 2009, 16:14

OK, the new release with this minor fix is done.

22 Feb 2009, 16:14

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19103
Location: In your JS exploiting you and your system

revolution 22 Feb 2009, 16:20

Look at that folks, less than half an hour after confirmation of the bug and it is fixed.

v1.67.34 is there.

22 Feb 2009, 16:20

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 22 Feb 2009, 19:18

haha, I see that an even number of arguments was required to trigger the bug then, I tested "per_3 dt 9,8,7".

22 Feb 2009, 19:18

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19103
Location: In your JS exploiting you and your system

revolution 22 Feb 2009, 19:29

LocoDelAssembly: You didn't do enough testing Wink

22 Feb 2009, 19:29

DarkLight

Joined: 21 Feb 2009
Posts: 10
Location: Armenia

DarkLight 23 Feb 2009, 15:44

Great !
Thank you!

23 Feb 2009, 15:44

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