There are certain virtual storage addresses that are made read-only (by default) on purpose , protected even from programs running key0. Including in this list is zero and areas such as PLPA.
Another guaranteed bad address for reference 0c4 is 7FFFFBAD and this explicit value is used on purpose by some products to catch unintended or unwanted reference. You can get more exotic 0c4s (eg oc4-3b) by polluting the HH of a register and then switching to AMODE 64 and using it as base address. Rob Scott Sent from Samsung Mobile on O2 Sent from Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Seymour J Metz <[email protected]> Sent: Sunday, April 21, 2024 3:11:25 PM To: [email protected] <[email protected]> Subject: Re: S0c4 creation EXTERNAL EMAIL Do you need to distinguish among possible reasons? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3<http://mason.gmu.edu/~smetz3> עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Peter <[email protected]> Sent: Sunday, April 21, 2024 3:45 AM To: [email protected] Subject: S0c4 creation Hello Good morning Is there any sample Jobs or I can enforce a s0c4 abend in a Started task ? I am trying to teach SLIP trap to a rookie..Is there any other efficient way to do this? Peter ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ================================ Rocket Software, Inc. and subsidiaries ■ 77 Fourth Avenue, Waltham MA 02451 ■ Main Office Toll Free Number: +1 855.577.4323 Contact Customer Support: https://my.rocketsoftware.com/RocketCommunity/RCEmailSupport Unsubscribe from Marketing Messages/Manage Your Subscription Preferences - http://www.rocketsoftware.com/manage-your-email-preferences Privacy Policy - http://www.rocketsoftware.com/company/legal/privacy-policy ================================ This communication and any attachments may contain confidential information of Rocket Software, Inc. All unauthorized use, disclosure or distribution is prohibited. If you are not the intended recipient, please notify Rocket Software immediately and destroy all copies of this communication. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
