equ names and buffer.

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Roman

Joined: 21 Apr 2012
Posts: 1980

Roman 15 Jun 2025, 06:55

fasmw 1.73

Code:

@tofst = 0
macro tmpVal [n,v] {
        n equ  @tmpBufr+@tofst
        movss [@tmpBufr+@tofst],v
        @tofst = @tofst+4
}   

@tmpBufr dd 16 dup (0)

;in code
tmpVal det,xmm5,det2,xmm5,det3,xmm2
    movss xmm2,[det2] ;Ida pro show address  @tmpBufr+0x0C
                      ;I expected address @tmpBufr+0x04

how fix this ?

15 Jun 2025, 06:55

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20700
Location: In your JS exploiting you and your system

revolution 15 Jun 2025, 07:03

This line "n equ @tmpBufr+@tofst" is the same each time.

Try with "label n at @tmpBufr+@tofst".

15 Jun 2025, 07:03

Roman

Joined: 21 Apr 2012
Posts: 1980

Roman 15 Jun 2025, 07:37

I do this variant. Work fine.

Code:

@tofst equ 0
macro tmpVal [n,v] {
        n equ  @tmpBufr+@tofst
        movss [@tmpBufr+@tofst],v
        @tofst equ @tofst+4
}   

@tmpBufr dd 16 dup (0)

;in code
tmpVal det,xmm5,det2,xmm5,det3,xmm2
    movss xmm2,[det2] ;Ida pro show address  @tmpBufr+0x04

15 Jun 2025, 07:37

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