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Index > DOS > far call

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NoName_s



Joined: 16 Jan 2006
Posts: 19
NoName_s
howto in RM?
i want to write simple: call far gx:bx (cs?)

1. in fasm call pword [gs:eax], but i need to tranfer control througt r16 offset else gen interrupt in dos and it crash.
2. if i write call pword [eax] where is segment and offset
32-16 = segm ?
0-15 = offset ?
Post 01 Feb 2006, 14:14
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NoName_s



Joined: 16 Jan 2006
Posts: 19
NoName_s
if i write: call [es:FarCall]
FarCall = dword segm:off
fasm generate call far ds:addr of FarCall
start:
jmp data ; 2 bytes
rb 13 ; reserve mem
;and here fasm add 1 byte! and i must correct it by hands
; ...
call [es:FarCall] ; if this line delete fasm not add 1 byte

fix: not byte, but word = 00 00, fasm 1.64
Howto write jmp 0x200a:0x0066 as far call ?
Post 02 Feb 2006, 09:39
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