RE: SXMACLIB

> -----Original Message-----
> From: [email protected] <[email protected]>
> Sent: 28 September 2019 11:00
> To: [email protected]
> Subject: RE: [H390-MVS] SXMACLIB
> 
> ---In [email protected], <dave.g4ugm@...> wrote :
> 
> > Personally, I am with you. As the owner of a P390 who sometimes runs
> > S/360 and S/370 operating systems on it, I sometimes want to write
> > pure code, so want programs that use extended op codes to fail to
> > assemble.
> > Paul doesn’t provide a way for me to do that.
> > I also would like to be able to generate 31 bit code for use in
> > MVS/ESA and VM/ESA, so again I want ONLY 31 bit macros.
> 
> That's a good point. I didn't think of that. But I don't think IBM provides a way
> of allowing you to get failures either.
> 
> BFN. Paul.
> 

Paul,
Quickly checking the manual for the High Level Assembler 

https://www.ibm.com/support/knowledgecenter/SSQ2R2_8.5.1/com.ibm.ent.asm.zos.doc/asmp1020.pdf

I can see that in fact there are two ways to set the available OP Codes... 
The MACHINE JCL parameter and the OPTABLE assembler directive both allow me to only load the instructions I need. So if I specify

MACHINE(S370) 

On the JCL or

OPTABLE S370

In the code them only S370 OP Codes (including the vector codes) are available...

Dave



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> Posted by: kerravon86-/[email protected]
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