DS Table
1     dsBusError - bus error
2     dsAddressErr - address error
3     dsIllInstErr - illegal instruction error
4     dsZeroDivErr - zero divide error
5     dsChkErr - check trap error
6     dsOvflowErr - overflow trap error
7     dsPrivErr - privilege violation error
8     dsTraceErr - trace mode error
9     dsLineAErr - line 1010 trap error
10    dsLineFErr - line 1111 trap error
11    dsMiscErr - miscellaneous hardware exception error
12    dsCoreErr - unimplemented core routine error
13    dsIrqErr - uninstalled interrupt error
14    dsIOCoreErr - IO Core Error
15    dsLoadErr - Segment Loader Error
16    dsFPErr - Floating point error
17    dsNoPackErr - package 0 not present [List Manager]
18    dsNoPk1 - package 1 not present [Reserved by Apple]
19    dsNoPk2 - package 2 not present [Disk Initialization]
20    dsNoPk3 - package 3 not present [Standard File]
21    dsNoPk4 - package 4 not present [Floating-Point Arithmetic]
22    dsNoPk5 - package 5 not present [Transcendental Functions]
23    dsNoPk6 - package 6 not present [International Utilities]
24    dsNoPk7 - package 7 not present [Binary/Decimal Conversion]
25    dsMemFullErr - out of memory!
26    dsBadLaunch - can't launch file
27    dsFSErr - file system map has been trashed
28    dsStknHeap - stack has moved into application heap
30    dsReinsert - request user to reinsert off-line volume
31    dsNotThe1 - not the disk I wanted (obsolete)
33    negZcbFreeErr - ZcbFree has gone negative
40    dsGreeting - welcome to Macintosh greeting
41    dsFinderErr - can't load the Finder error
42    dsBadStartupDisk - unable to mount boot volume (obsolete)
43    dsSystemFileErr - can’t find System file to open (obsolete)
51    dsBadSlotInt - unserviceable slot interrupt
81    dsBadSANEopcode - bad opcode given to SANE Pack4
83    dsBadPatchHeader - SetTrapAddress saw the “come-from” header
84    menuPrgErr - happens when a menu is purged
85    dsMBarNFnd - SysErr -- cannot find MBDF
86    dsHMenuFindErr - SysErr -- recursively defined HMenus
87    dsWDEFnFnd - Could not load WDEF
88    dsCDEFnFnd - Could not load CDEF
89    dsMDEFnFnd - Could not load MDEF
90    dsNoFPU - FPU instruction executed, but machine has no FPU
98    dsNoPatch - Can't patch for particular Model Mac
99    dsBadPatch - Can't load patch resource
101   dsParityErr - memory parity error
102   dsOldSystem - System is too old for this ROM
103   ds32BitMode - booting in 32-bit on a 24-bit sys
104   dsNeedToWriteBootBlocks - need to write new boot blocks
105   dsNotEnoughRAMToBoot - need at least 1.5MB of RAM to boot 7.0
151	
20000 dsShutDownOrRestart - user choice between ShutDown and Restart
20001 dsSwitchOffOrRestart - user choice between Switch off or Restart
20002 dsForcedQuit - allow the user to ExitToShell, return if Cancel
32767 dsSysErr - general system error (catch-all used in DSAT)