flat assembler - problem with < in macro. How fix this ?

Index > Macroinstructions > problem with < in macro. How fix this ?

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Roman

Joined: 21 Apr 2012
Posts: 1847

Roman 22 Jun 2022, 09:19

Fasmw 1.73

Code:

macro jif ar1,ar2,mtk {
     match =+X, ar1 \{ inc X
                       jifR equ X\}
     match =-X, ar1 \{ dec X
                       jifR equ X\}
     match =>X, ar2 \{ cmp jifR,X
                       ja mtk \}
     match =<X, ar2 \{ cmp jifR,X
                       jb mtk \}
     match =~X, ar2 \{ cmp jifR,X
                       jnz mtk \}
     match ==X, ar2 \{ cmp jifR,X
                       jz mtk \}
      } 
;in code 
  jif -edx,<11,.lb1  ;fasm get error invalid macro argument because <

22 Jun 2022, 09:19

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20445
Location: In your JS exploiting you and your system

revolution 22 Jun 2022, 09:23

Escape it with a backslash.

Code:

  jif -edx,\<11,.lb1

22 Jun 2022, 09:23

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8359
Location: Kraków, Poland

Tomasz Grysztar 22 Jun 2022, 09:40

You can use fasmg-like greedy argument and then MATCH to cut the things yourself:

Code:

macro jif agrs&  {
     match ar1=,ar2=,mtk, args \{

22 Jun 2022, 09:40

Roman

Joined: 21 Apr 2012
Posts: 1847

Roman 22 Jun 2022, 12:38

revolution wrote:

Escape it with a backslash.
Code:
  jif -edx,\<11,.lb1    

Compile but no jb asm instruction. macro jif failed
Only ebx.

22 Jun 2022, 12:38

Roman

Joined: 21 Apr 2012
Posts: 1847

Roman 22 Jun 2022, 12:40

Quote:

macro jif agrs& {
match ar1=,ar2=,mtk, args \{

And how this help ?
For this

Code:

jif  +ebx,<10,.lb1 ;Because fasm used this < and macro failed

22 Jun 2022, 12:40

macomics

Joined: 26 Jan 2021
Posts: 1040
Location: Russia

macomics 22 Jun 2022, 12:48

Code:

format binary as "txt"

macro jif args& { restore jifR
  match ar1=,ar2=,mtk, args \{
     match =+X, ar1 \\{ inc X
                       jifR equ X\\}
     match =-X, ar1 \\{ dec X
                       jifR equ X\\}
     match =jifR, jifR \\{ jifR equ ar1 \\}
     match =>X, ar2 \\{ cmp jifR,X
                       ja mtk \\}
     match =<X, ar2 \\{ cmp jifR,X
                       jb mtk \\}
     match =~X, ar2 \\{ cmp jifR,X
                       jnz mtk \\}
     match ==X, ar2 \\{ cmp jifR,X
                       jz mtk \\}
 \} }
use32
test0:  jif ebx,<10,.lb1 ; <- works fine
        nop
        nop
        nop
.lb1:   jif +ebx,<10,.lb2 ; <- works fine
        nop
        nop
        nop
.lb2:   jif -ebx,<10,.lb3 ; <- works fine
        nop
        nop
        nop
.lb3:   jif ebx,>10,.lb4 ; <- works fine
        nop
        nop
        nop
.lb4:   jif +ebx,>10,.lb5 ; <- works fine
        nop
        nop
        nop
.lb5:   jif -ebx,>10,.lb6 ; <- works fine
        nop
        nop
        nop
.lb6:
use64
test1:  jif ebx,<10,.lb1 ; <- works fine
        nop
        nop
        nop
.lb1:   jif +ebx,<10,.lb2 ; <- works fine
        nop
        nop
        nop
.lb2:   jif -ebx,<10,.lb3 ; <- works fine
        nop
        nop
        nop
.lb3:   jif ebx,>10,.lb4 ; <- works fine
        nop
        nop
        nop
.lb4:   jif +ebx,>10,.lb5 ; <- works fine
        nop
        nop
        nop
.lb5:   jif -ebx,>10,.lb6 ; <- works fine
        nop
        nop
        nop
.lb6:

Last edited by macomics on 13 Nov 2024, 20:44; edited 1 time in total

22 Jun 2022, 12:48

Roman

Joined: 21 Apr 2012
Posts: 1847

Roman 22 Jun 2022, 14:40

Big thanks.
Good job !
All work fine.

22 Jun 2022, 14:40

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