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From: dbenhur@adobe.COM (Devin Ben-Hur)
Newsgroups: comp.os.msdos.programmer,alt.lang.asm
Subject: Re: I can't get SHR EAX,16 to work in protected mode ...
Message-ID: <14359@adobe.UUCP>
Date: 23 Apr 91 23:54:03 GMT
References: <1991Apr22.204217.29963@cm.cf.ac.uk>
Reply-To: dbenhur@adobe.UUCP (Devin Ben-Hur)
Followup-To: comp.sys.ibm.pc.programmer
Organization: Adobe Systems Incorporated, Mountain View
Lines: 23

In article <1991Apr22.204217.29963@cm.cf.ac.uk> rhl@computing-maths.cardiff.ac.uk (Robert Hartill) writes:
>	MOV EAX,12345678h
>	SHR EAX,16
>	call print_hex
>
>I still get 0.

I suspect the default base in your assembler is hex and you're
actually shifting by 22 bits. 0 is a funny answer (0x48 would be correct)
but maybe you're not relating the precise values and this is really
your problem...

I just tried a test in Turbo Debugger 386 and
MOV EAX,12345678
SHR EAX,10

produced 00001234 as expected.

-- 
---
Devin Ben-Hur
dbenhur@adobe.com        415/962-6074
drazil@netcom.com        "Me, not Adobe"