Subject: Re: Rooki needs Help please !
Date: 24 Mar 1998 06:35:12 GMT
From: silva@dowco.com (Silva)
Organization: dowco.com internet (ISP)
Newsgroups: comp.lang.asm.x86

Harald.Zupp@t-online.de (Harald Zupp) wrote:

>I have since up a Shareware CdRom a real mad
>in Assembler writed Intro found.
>Unfortunately get i by the Attempt  this program along with my ancient
>Assembler TASM 1.0 (1988) to compilieren Error Messages relate to (16
>times) always up shr or shl Commands.

>Example:

>Shr di,2
>Shl cl,3

>i see
>>>Rotate count out of Range<<

>Aloha people what does have that stand for ??
>How can I that put down ??

Your compiler is checking for spelling errors and thinks you are
writing assembler code for an 8088 or 8086 CPU.
I do not know if TASM 1.0 supports higher level CPUs, but later
versions should support them.
You have to tell the compiler you are making assembly code for a
higher level CPU,
so for a 80286 you use .286
and for a 80386 you use .386

Below is an example, but remember it is up to you to make sure the
computer is a 80286 or later computer...
(there are example programs and routines for that).

code    segment
        assume  cs:code, ds:code, ss:code, es:code
        org     0100h
start:  shr     di,1            ;in 8086 mode you are allowed
        shl     cl,1            ;to use only 1 or CL
        shr     di,cl
        shl     ch,cl           ;default mode is 8086 mode

        ;tell compiler you are making 80286 code
        .286

        shr     di,2            ;in 80286, 80386, 80486...mode
        shl     cl,2            ;you are allowed to use 1...31 or CL
        shr     di,1
        shl     cl,1
        shr     di,cl
        shl     ch,cl

        ;tell compiler you are making 8086 (default) code again
        .8086

exit:   mov  ax,4C00h           ;exit to DOS and return(0)
        int  21h
code    ends
        end     start