Re: Understanding assembler instructions

Betov wrote: 
Christian Christmann <plfriko@xxxxxxxx> écrivait news:4361fcbd$0$21955
$9b4e6d93@xxxxxxxxxxxxxxxxxxxxxxxxxx:


In a CALL instruction, the high 2 bits are the instruction code and the
low 30 bits are s signed word offset. What are the hex addresses for
X, Y and Z?



There are several forms of CALL. The one for "Direct
Code CALL" is a one-Byte Opcode, followed by a dWord.

This dWord is the relative Displacement from the first
Byte, after the Call Instruction, to the targetted
location.

Example


call Code0411860 ; E8 EC FF 00 00 


... means (E8) CALL "+65516" (0FFEC)


call Code0401F80 ; E8 D5 FF FF FF 


... means CALL "-43" (0FFFF_FFD5)


Betov.

< http://rosasm.org >


The OP was answering a question on SPARC architecture, not x86.

--
Regards
Alex McDonald
.

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