Set Debugger$AnnotatedFile

Is there any info on how – to ‘read/make sense’ of the info in the file returned after an error?

Thanks

General info about the feature: https://www.riscosopen.org/wiki/documentation/show/Debugger%20Exception%20Dumps
How to read the annotated dumps: https://www.riscosopen.org/wiki/documentation/show/Debugger%20Annotated%20Exception%20Dumps

Using RO5.23 (12-May 2017) VRPC-DL
Hermes 4.12 (14 Apr 2016)
When trying to Fetch gmail (securesockets32) sometimes I get an error – and Hermes quits.

(still not downloading any emails from gmail-but that is another problem)

Any idea where the error is comming from?
**************
Error block: 80000002 Internal error: abort on data transfer at &FC028194
R0 = 200000c8 R1 = 600000c0 R2 = fa300040 R3 = 600000c8 R4 = fc019e20
R5 = f980402c R6 = 00000000 R7 = 00000000 R8 = 00000000 R9 = 00000000
R10 = 00000005 R11 = f9bc6000 R12 = 200fb094 R13 = fa207fb0 R14 = fc0283fc
R15 = fc019db0 CPSR = 200000d7

*showregs gives ‘Mode USR26’ PSR 00000000

R13_usr = 00045cf4 R14_usr = 0000ca3c R13_svc = fa207fa0 R14_svc = 20166a64
SPSR_svc = 400000d3 R13_irq = fa102000 R14_irq = b0000013 SPSR_irq = b0000013
R13_abt = fa207f9c
R14_abt = fc019db0
SPSR_abt = 200000d7
R13_und = fa402000
R14_und = fc1215b8
SPSR_und = 60000013
OSMem16: 2 = fa100000, 00002000, 00002000
OSMem16: 5 = fa200000, 00008000, 00008000
OSMem16: 8 = fa300000, 00002000, 00002000
OSMem16: 11 = fa400000, 00002000, 00002000
Memory: fa100000 – fa102000
Memory: fa200000 – fa208000
Memory: fa300000 – fa302000
Memory: fa400000 – fa402000
Memory: 00000108 – 0000010c
OSRSI6: 69 = 00000108

R15 = fc019db0 = +19db0 in the Kernel
R14_svc = 20166a64 = Internet +1bf0

SVC stack:
fa207fa0 : fc0283fc : – fc028104 return to fc0283fc?
: : | fc028104 = UtilityModule +7860
: : | fc0283fc = UtilityModule +7b58
fa207fa4 : 00000000 :
fa207fa8 : fc019034 : – Return to fc019034?
: : | = +19034 in the Kernel
fa207fac : fc028170 : – fc019010 return to fc028170?
: : | fc019010 = +19010 in the Kernel
: : | fc028170 = UtilityModule +78cc
fa207fb0 : 200000c8 :
fa207fb4 : 600000c0 :
fa207fb8 : fa300040 :
fa207fbc : 600000c8 :
fa207fc0 : fc019e20 :
fa207fc4 : f980402c :
fa207fc8 : 00000000 :
fa207fcc : 00000000 :
fa207fd0 : 00000000 :
fa207fd4 : 00000000 :
fa207fd8 : 00000005 : – Return to 00000005?
: : | is system workspace
fa207fdc : f9bc6000 :
fa207fe0 : 200fb094 :
fa207fe4 : fa207fb0 :
fa207fe8 : fc0283fc : – fc028104 return to fc0283fc?
: : | fc028104 = UtilityModule +7860
: : | fc0283fc = UtilityModule +7b58
fa207fec : fc019db0 :
fa207ff0 : 200000d7 :
fa207ff4 : 200000c8 :
fa207ff8 : 600000c0 :
fa207ffc : fa300040 :

R14_usr = 0000ca3c = +4a3c in application memory = Connect__9ConnectorFv +130
Function call to fc15f1a8 = SharedCLibrary +32010

USR stack:
00045cf4 : 00000000 : | R6
00045cf8 : 00042760 : | R7
00045cfc : 000425a4 : | R8
00045d00 : 000425d8 : | R9
00045d04 : 0000ca3c : | R14: 0000ca3c (ASM call to fc15f1a8)
: : | 0000ca3c = +4a3c in application memory
: : | = Connect__9ConnectorFv +130
: : | fc15f1a8 = SharedCLibrary +32010
00045d08 : 00000000 :
00045d0c : 0000000a : – Return to 0000000a?
: : | is system workspace
00045d10 : 00000400 :
00045d14 : 00000000 :
00045d18 : 00000000 :
00045d1c : 00000000 :
00045d20 : 00000000 :
00045d24 : 00000000 :
00045d28 : 00000000 :
00045d2c : 00000000 :
00045d30 : 000426a0 :
00045d34 : 0000f644 :
00045d38 : 000426ac :
00045d3c : 00000006 : – Return to 00000006?
: : | is system workspace
00045d40 : 00045d78 :
00045d44 : 00045d60 :
00045d48 : 0000d06c : – 0000c90c return to 0000d06c?
: : | 0000c90c = +490c in application memory
: : | = Connect__9ConnectorFv +0
: : | 0000d06c = +506c in application memory
: : | = Poll__14ConnectManagerFv +f0
00045d4c : 0000c920 :
00045d50 : 0005df68 :
00045d54 : 00058ec0 :
00045d58 : 0005df68 :
00045d5c : 00042788 :
00045d60 : 00048018 :
00045d64 : 00000000 :
00045d68 : 0004801c :
00045d6c : 00045de4 :
00045d70 : 00045d8c :
00045d74 : 00012564 : – Return to 00012564?
: : | = +a564 in application memory
: : | = WimpPoll__10HermesTaskFv +4ac
00045d78 : 0000cf90 :
00045d7c : 000426a0 :
00045d80 : 00041de8 :
00045d84 : 00000000 :
00045d88 : 000426a0 :
00045d8c : 00000bb8 :
00045d90 : 00000006 : – Return to 00000006?
: : | is system workspace
00045d94 : 0004801c :
00045d98 : 00000000 :
00045d9c : 200f78b4 :
00045da0 : 00011d34 :
00045da4 : 00048018 :
00045da8 : 00000000 :
00045dac : 00000000 :
00045db0 : 66d619e1 :
00045db4 : 00000000 :
00045db8 : 00000000 :
00045dbc : 00042424 :
00045dc0 : 00042400 :
00045dc4 : ffffffff :
00045dc8 : 00000000 :
00045dcc : 00042440 :
00045dd0 : 000445ac :
00045dd4 : 000447dc :
00045dd8 : 00045e20 :
00045ddc : 00045df8 :
00045de0 : 0001d1c4 : – 000120b8 return to 0001d1c4?
: : | 000120b8 = +a0b8 in application memory
: : | = WimpPoll__10HermesTaskFv +0
: : | 0001d1c4 = +151c4 in application memory
: : | = main +548
00045de4 : 000120cc :
00045de8 : 00048018 :
00045dec : 00001800 :
00045df0 : 00000000 :
00045df4 : 00000000 :
00045df8 : 00000001 :
00045dfc : 00045e20 :
00045e00 : 00000000 :
00045e04 : 00000000 :
00045e08 : 00048018 :
00045e0c : 00045ebc :
00045e10 : 00000000 :
00045e14 : 00045e8c :
00045e18 : 00045e34 :
00045e1c : fc1311f8 : – fc15df0c return to fc1311f8?
: : | fc15df0c = SharedCLibrary +30d74
: : | fc1311f8 = SharedCLibrary +4060
00045e20 : 0001cc90 :
00045e24 : 00000001 :
00045e28 : 00046388 :
00045e2c : 00000000 :
00045e30 : 0001cc7c :
00045e34 : 20000000 :
00045e38 : ffffffff :
00045e3c : 00000001 :
00045e40 : 00000000 :
00045e44 : 00000000 :
00045e48 : 00000000 :
00045e4c : 00000017 : – Return to 00000017?
: : | is system workspace
00045e50 : fc130d00 : – fc1400dc return to fc130d00?
: : | fc1400dc = SharedCLibrary +12f44
: : | fc130d00 = SharedCLibrary +3b68
00045e54 : 00044320 :
00045e58 : 00044370 :
00045e5c : 03ee3ba4 :
00045e60 : 00045ea4 :
00045e64 : 0001cc7c :
00045e68 : 00045ea4 :
00045e6c : 00041b44 :
00045e70 : 00041b44 :
00045e74 : 00000028 :
00045e78 : 00044108 :
00045e7c : 00044000 :
00045e80 : 00045ea0 :
00045e84 : 00045e90 :
00045e88 : 000402c0 : – fc130e00 return to 000402c0?
: : | fc130e00 = SharedCLibrary +3c68
: : | 000402c0 = +382c0 in application memory
: : | = StripComment__9XMLParserFv +e8
00045e8c : fc130e10 :
00045e90 : 0004028c : – Return to 0004028c?
: : | = +3828c in application memory
: : | = StripComment__9XMLParserFv +b4
00045e94 : 00000000 :
00045e98 : 00045ea4 :
00045e9c : fc15e280 : – Return to fc15e280?
: : | = SharedCLibrary +310e8
00045ea0 : 0004029c : – fc15f1d4 return to 0004029c?
: : | fc15f1d4 = SharedCLibrary +3203c
: : | 0004029c = +3829c in application memory
: : | = StripComment__9XMLParserFv +c4
00045ea4 : 7265483c :
00045ea8 : 2473656d :
00045eac : 3e726944 :
00045eb0 : 7552212e :
00045eb4 : 616d496e :
00045eb8 : 00206567 :
00045ebc : 00045ebc :
00045ec0 : 00000000 :
00045ec4 : 00000000 :
00045ec8 : 0000027c :
00045ecc : 00000000 :
00045ed0 : 03ee3ba4 :
00045ed4 : 00000000 :
00045ed8 : 00000000 :

End of dump

How would you implement ‘TSTP PC,#0’ in 32bit code?

TSTP is an AND mask, isn’t it? So the result would be PC AND 0 – which is zero?

Something like MSR CPSR_cxsf, #0 is a literal translation, though you can start knocking off bits (doesn’t need to be c, x, s, and f) and revising the value once you know what exactly the code is doing, so you don’t have unexpected consequences.
For example if you’re trying to return to USR mode, it is %10000, not %00 these days… And it’s far better to read the status into a register and BIC/ORR the exact bits you want changed…
https://www.heyrick.co.uk/armwiki/The_Status_register

How would you implement ‘TSTP PC,#0’ in 32bit code?

Is this the only occurance of a P instruction in the subroutine? If so, it’s probably just clearing the flags (MSR CPSR_f, #0). If there’s another P instruction further up, it’s possibly also switching CPU Mode and/or enabling IRQ/FIQ:

MRS R0, CPSR
BIC R0, R0, #%1111       ; USER
BIC R0, R0, #%1111 << 28 ; clear flags
BIC R0, R0, #%11 << 6    ; clear IRQ/FIQ
MSR CPSR_all, R0         ; or CPSR_cxsf, R0 depending on the compiler

As Rick points out, never change the full CPSR with a literal value as ARM are bound to use the reserved bits in future designs. The BIC’s in the code above can be combined into one instruction once you know what the code actually needs to do.

Thanks for that info – bic r0,r0,&CF instead of &C3 might be worth a try.
Clear IRQ/FIQ is of course different for 32bit.

VRPC Internet32/!Hermes seems to work ok with RO4.02 – but when using RO5.23/!Hermes to contact gmail/securesockets – !Hermes sometimes crashes out :-(

Not sure if there is any difference between teqp,pc,#0 and tstp,pc,#0

VRPC Internet32/!Hermes seems to work ok with RO4.02 – but when using RO5.23/!Hermes to contact gmail/securesockets – !Hermes sometimes crashes out :-(

I seem to recall a recent item from R-Comp (or the developer) about updates to various software to fix a collection of zeropain problems among other things. I think they were seeking information on reproducible errors so that anything they had missed could be covered too.
I think they probably want people to test the beta versions resulting from the work.