Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!ucsd!ucbvax!TREARN.BITNET!PROHVK38
From: PROHVK38@TREARN.BITNET (orhan)
Newsgroups: comp.lang.asm370
Subject: Re: ask...
Message-ID: <9004091850.AA24017@ucbvax.Berkeley.EDU>
Date: 9 Apr 90 18:50:47 GMT
References: <FOHACUNA@UCHDCI01>
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: IBM 370 Assembly Programming Discussion List <ASM370@OHSTVMA.IRCC.OHIO-STATE.EDU>
Distribution: inet
Organization: The Internet
Lines: 12
X-Unparsable-Date: Mon, 9 Apr 90 12:37:01 TUR


       CCW control bytes controls BREAK KEY enable/disable.



CTL0     EQU   X'00'             write (break), read buffer
CTL1     EQU   X'10'             write
CTL2     EQU   X'20'             write structured field
CTL3     EQU   X'80'             erase/write (break), read modify
CTL4     EQU   X'90'             erase/write
CTL5     EQU   X'C0'             erase/write alternate (break)
CTL6     EQU   X'D0'             erase/write alternate