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Index > Main > FASM Equivilant to =,<>,<=,>=?

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Killswitch



Joined: 21 Jan 2006
Posts: 20
Killswitch
I'm currently on the way to producing a expression to FASM program, I've managed to get +,-,*,/ operators producing some nice FASM code, but I don't know how to convert the following operators: =,<>.<= and >=. Could someone explain this to me, preferably with a floats example to!

Thanks,

Killswitch
Post 21 Jan 2006, 23:44
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RedGhost



Joined: 18 May 2005
Posts: 443
Location: BC, Canada
RedGhost
Killswitch wrote:
I'm currently on the way to producing a expression to FASM program, I've managed to get +,-,*,/ operators producing some nice FASM code, but I don't know how to convert the following operators: =,<>.<= and >=. Could someone explain this to me, preferably with a floats example to!

Thanks,

Killswitch



=, equal
<>, not equal (less than or greater than, pascal syntax i think)
<=, less than or equal
>=, greater than or equal

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Post 21 Jan 2006, 23:51
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Killswitch



Joined: 21 Jan 2006
Posts: 20
Killswitch
Lol, sorry I wasn't clear! I meant the FASM equivilant of those operators. For exampe + is:

Add a,b

What's the instruction for those operators?
Post 21 Jan 2006, 23:59
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RedGhost



Joined: 18 May 2005
Posts: 443
Location: BC, Canada
RedGhost
cmp x, y

=, je
<>, jne
<=, jle
>=, jge

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redghost.ca
Post 22 Jan 2006, 00:02
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Killswitch



Joined: 21 Jan 2006
Posts: 20
Killswitch
Sorry to be a pain, but can you give me a specific example on how to use this - I get an error when I try to use any of those commands, the operators are invalid apperantly. Aren't they jump instructuons?
Post 22 Jan 2006, 00:05
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silkodyssey



Joined: 02 Oct 2003
Posts: 198
Location: St.Vincent & the Grenadines
silkodyssey
I think you will find this tutorial helpful. It uses nasm but nasm's syntax is similar to fasm's.

http://www.drpaulcarter.com/pcasm/

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silkodyssey
Post 22 Jan 2006, 02:37
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Killswitch



Joined: 21 Jan 2006
Posts: 20
Killswitch
Thanks!
Post 22 Jan 2006, 12:03
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El_Choni



Joined: 09 Mar 2004
Posts: 8
Location: Spain
El_Choni
Code:
cmp dword [v_variable], eax ; compare v_variable with the value in eax.
    


And, then, jump to the adequate label:

Code:
je .equal_to                  ; Jump if v_variable is equal to eax, etc.
jne .unequal_to
jg .greater_than              ; for signed numbers 
jl .less_than                 ; for signed numbers
ja .above                     ; for unsigned numbers
jb .below                     ; for unsigned numbers
jge .greater_than_or_equal_to ; for signed numbers
jle .less_than_or_equal_to    ; for signed numbers
jae .above_or_equal           ; for unsigned numbers
jbe .below_or_equal           ; for unsigned numbers
    
Post 23 Jan 2006, 14:36
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7725
Location: Kraków, Poland
Tomasz Grysztar
You may also find the table 2.1 useful.
Post 23 Jan 2006, 14:45
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lilljocke



Joined: 28 Dec 2004
Posts: 34
Location: Sweden
lilljocke
How do i compile an exe to my Pocket PC with Windows Mobile 2003 ? is it possible with this tool or is there any other compilers?
Post 01 Feb 2006, 16:46
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