From 93c6ce7236d8a4fc8bbba365a781292a6db44037 Mon Sep 17 00:00:00 2001 From: Jeff Date: Thu, 3 Nov 2016 18:55:43 -0700 Subject: [PATCH] README tweak --- devices/pdp11/machine/1170/panel/debugger/README.md | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/devices/pdp11/machine/1170/panel/debugger/README.md b/devices/pdp11/machine/1170/panel/debugger/README.md index e4b0bf9a5..e4a2e7faf 100644 --- a/devices/pdp11/machine/1170/panel/debugger/README.md +++ b/devices/pdp11/machine/1170/panel/debugger/README.md @@ -299,12 +299,13 @@ RAM. As the **Maintenance Service Guide** goes on to say: - The program should halt when all of memory is cleared. If it doesn't halt, examine the CPU error, Memory system error - and HI/LO error address registers to determine the cause. Trap catchers can be used by depositing 200 in KIPAR 0 (17772340) - instead of zero, and setting up vector locations with their address + 2 and the Vector + 2 with a 0 (halt). + The program should halt when all of memory is cleared. If it doesn't halt, examine the CPU error, + Memory system error and HI/LO error address registers to determine the cause. Trap catchers can be + used by depositing 200 in KIPAR 0 (17772340) instead of zero, and setting up vector locations with + their address + 2 and the Vector + 2 with a 0 (halt). - Note: When loading the program you must be in console physical [i.e., the ADDRESS select switch must be set to "CONS PHY", - which is the default setting of the PDPjs Front Panel]. + Note: When loading the program you must be in console physical [i.e., the ADDRESS select switch + must be set to "CONS PHY", which is the default setting of the PDPjs Front Panel]. Before running the above code, you should turn Bus messages off (ie, "m bus off"); otherwise, the quantity of messages will slow execution to a crawl.