🚀 go-pugleaf

In article <kWInx6y00XM3zxg0Wo@andrew.cmu.edu> jv0l+@andrew.cmu.edu (Justin Chris Vallon) writes:
 } The last two digits of the six digit number is the system error number, but
 } I don't know what the first four represent.  The system errors are in hex:
 } 01 Bus Error			 } 0C Bad trap                  
 } 02 Address error		 } 0D NIL interrupt vector      
 } 03 Ilgl Inst			 } 0E I/O sys err               
 } 04 Div 0			 } 0F SegLoad err               
 } 05 CHK O.R.			 } 10 FP err                    
 } 06 TrapV			 } 11..18 can't load package    
 } 07 Privilege violation	 } 19 Out of Memory             
 } 08 Trace interrupt		 } 1A SegLoad err (Code 0)      
 } 09 1010 exception    	 } 1B Bad file map              
 } 0A 1111 exception		 } 1C Stack overflow            
 } 0B Misc exception	
 } That's about it.  There are some others (menu purged, etc), but they aren't
 } documented in IM.  Does anybody know what the first four digits mean?

The above matches the 0F00xx codes.  The following comes from
Dove's MacSnap_Plus_2 documentation:
	01aabb   =   ROM Test
	02aabb   =   RAM (Bus)
	03aabb   =   RAM (Write)
	04aabb   =   RAM (MOD3)
	05aabb   =   RAM (Pattern)

The aabb hex digits get expanded out to binary bits after swapping
aabb to bbaa.  A zero bit means OK RAM, a one bit means suspect RAM.

I don't have (but would like) the mapping onto the SIMMs used on the newer
machines (the Dove documentation I have only covers the 512k machine in this
appendix).
-- 
 Jeffrey D. Schnitzer, CalComp Display Products Division, Hudson NH 03051-0908
 jdschnit@elrond.CalComp.COM (I hate short unix names)  MaBell: (603) 885-8156
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