Indexed Variables

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ml64

Joined: 17 Jul 2020
Posts: 12

ml64 20 Jul 2020, 14:48

How does fasm reach indexed members of arays?
I need to jump to the n-th member of the array/ Like this:

Code:

section '.data' data readable writeable
 lpCase dq 0,0,0,0
section '.text' code readable executable
  mov rax,2
 ;Select Case
  jmp lpCase[rax]

or at least:

Code:

 jmp lpCase[2]

Last edited by ml64 on 24 Aug 2020, 08:21; edited 1 time in total

20 Jul 2020, 14:48

CandyMan

Joined: 04 Sep 2009
Posts: 414
Location: film "CandyMan" directed through Bernard Rose OR Candy Shop

CandyMan 20 Jul 2020, 15:06

Code:

 mov rax,2
;...
 jmp [lpCase+rax*8]

Code:

 jmp [lpCase+2*8]

Code:

 lea rdx,[lpCase]
;...
 mov rax,2
;...
 jmp qword [rdx+rax*8]

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20 Jul 2020, 15:06

ml64

Joined: 17 Jul 2020
Posts: 12

ml64 24 Aug 2020, 08:22

Thank You, CandyMan!

24 Aug 2020, 08:22

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