mirror of
https://github.com/elliotnunn/powermac-rom.git
synced 2024-10-19 03:24:43 +00:00
477 lines
13 KiB
ArmAsm
477 lines
13 KiB
ArmAsm
VecTbl RECORD 0, INCR ; SPRG3 vector table (looked up by ROM vectors)
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ds.l 1 ; 00 ; scratch for IVT?
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SystemResetVector ds.l 1 ; 04 ; called by IVT+100 (system reset)
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MachineCheckVector ds.l 1 ; 08 ; called by IVT+200 (machine check)
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DSIVector ds.l 1 ; 0c ; called by IVT+300 (DSI)
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ISIVector ds.l 1 ; 10 ; called by IVT+400 (ISI)
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ExternalIntVector ds.l 1 ; 14 ; called by IVT+500 (external interrupt)
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AlignmentIntVector ds.l 1 ; 18 ; called by IVT+600 (alignment)
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ProgramIntVector ds.l 1 ; 1c ; called by IVT+700 (program)
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FPUnavailVector ds.l 1 ; 20 ; called by IVT+KDP.BATs + 0xa0 (FP unavail)
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DecrementerVector ds.l 1 ; 24 ; called by IVT+900 (decrementer)
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ReservedVector1 ds.l 1 ; 28 ; called by IVT+a00 (reserved)
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ReservedVector2 ds.l 1 ; 2c ; called by IVT+b00 (reserved)
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SyscallVector ds.l 1 ; 30 ; called by IVT+c00 (system call)
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TraceVector ds.l 1 ; 34 ; called by IVT+d00 (trace)
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FPAssistVector ds.l 1 ; 38 ; called by IVT+e00 (FP assist)
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PerfMonitorVector ds.l 1 ; 3c ; called by IVT+f00 (perf monitor)
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ds.l 1 ; 40 ;
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ds.l 1 ; 44 ;
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ds.l 1 ; 48 ;
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ds.l 1 ; 4c ; Vectors from here downwards are called from
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ds.l 1 ; 50 ; odd places in the IVT????
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ds.l 1 ; 54 ;
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ds.l 1 ; 58 ; seems AltiVec-related
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ThermalEventVector ds.l 1 ; 5c ;
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ds.l 1 ; 60 ;
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ds.l 1 ; 64 ;
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ds.l 1 ; 68 ;
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ds.l 1 ; 6c ;
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ds.l 1 ; 70 ;
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ds.l 1 ; 74 ;
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ds.l 1 ; 78 ;
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ds.l 1 ; 7c ;
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ds.l 1 ; 80 ; shares with TraceVector in Y and G
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ds.l 1 ; 84 ;
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ds.l 1 ; 88 ;
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ds.l 1 ; 8c ;
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ds.l 1 ; 90 ;
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ds.l 1 ; 94 ;
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ds.l 1 ; 98 ;
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ds.l 1 ; 9c ;
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ds.l 1 ; a0 ;
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ds.l 1 ; a4 ;
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ds.l 1 ; a8 ;
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ds.l 1 ; ac ;
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ds.l 1 ; b0 ;
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ds.l 1 ; b4 ;
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ds.l 1 ; b8 ;
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ds.l 1 ; bc ; called by IVT+0 (reserved)
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Size equ *
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ENDR
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########################################################################
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KCallTbl RECORD 0, INCR ; NanoKernel call table
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ReturnFromException ds.l 1 ; 00, trap 0
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RunAlternateContext ds.l 1 ; 04, trap 1
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ResetSystem ds.l 1 ; 08, trap 2 ; 68k RESET
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VMDispatch ds.l 1 ; 0c, trap 3 ; 68k $FE0A
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PrioritizeInterrupts ds.l 1 ; 10, trap 4
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PowerDispatch ds.l 1 ; 14, trap 5 ; 68k $FEOF
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RTASDispatch ds.l 1 ; 18, trap 6
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CacheDispatch ds.l 1 ; 1c, trap 7
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MPDispatch ds.l 1 ; 20, trap 8
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ds.l 1 ; 24, trap 9
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ds.l 1 ; 28, trap 10
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ds.l 1 ; 2c, trap 11
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CallAdapterProcPPC ds.l 1 ; 30, trap 12
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ds.l 1 ; 34, trap 13
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CallAdapterProc68k ds.l 1 ; 38, trap 14
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SystemCrash ds.l 1 ; 3c, trap 15
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Size equ *
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ENDR
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########################################################################
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PME RECORD 0, INCR ; PageMap Entry
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LBase ds.w 1 ; 0 ; (base - segment) >> 12
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PageCount ds.w 1 ; 2 ; page count MINUS ONE
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PBaseAndFlags ds.l 1 ; 4 ; PBase page aligned
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PBaseBits equ 20
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FirstFlagBit equ 20
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FirstFlag equ 0x800
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DaddyFlag equ 0x800
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CountingFlag equ 0x400
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PhysicalIsRelativeFlag equ 0x200
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; try not to use the equates above; they are dicey
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TopFieldMask equ 0xe00
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Size equ *
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ENDR
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########################################################################
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BAT RECORD 0, INCR
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U ds.l 1
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L ds.l 1
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ENDR
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########################################################################
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MemLayout RECORD 0, INCR
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SegMapPtr ds.l 1
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BatMap ds.l 1 ; packed array of 4-bit indices into BATs
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ENDR
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########################################################################
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KDP RECORD 0x80, INCR ; Kernel Data Page
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r0 ds.l 1 ; 000 ; used for quick register saves at interrupt time
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r1 ds.l 1 ; 004
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r2 ds.l 1 ; 008
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r3 ds.l 1 ; 00c
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r4 ds.l 1 ; 010
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r5 ds.l 1 ; 014
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r6 ds.l 1 ; 018
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r7 ds.l 1 ; 01c
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r8 ds.l 1 ; 020
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r9 ds.l 1 ; 024
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r10 ds.l 1 ; 028
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r11 ds.l 1 ; 02c
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r12 ds.l 1 ; 030
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r13 ds.l 1 ; 034
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r14 ds.l 1 ; 038
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r15 ds.l 1 ; 03c
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r16 ds.l 1 ; 040
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r17 ds.l 1 ; 044
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r18 ds.l 1 ; 048
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r19 ds.l 1 ; 04c
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r20 ds.l 1 ; 050
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r21 ds.l 1 ; 054
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r22 ds.l 1 ; 058
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r23 ds.l 1 ; 05c
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r24 ds.l 1 ; 060
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r25 ds.l 1 ; 064
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r26 ds.l 1 ; 068
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r27 ds.l 1 ; 06c
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r28 ds.l 1 ; 070
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r29 ds.l 1 ; 074
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r30 ds.l 1 ; 078
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r31 ds.l 1 ; 07c
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SegMaps
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SegMap32SupInit ds.l 32 ; 080:100
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SegMap32UsrInit ds.l 32 ; 100:180
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SegMap32CPUInit ds.l 32 ; 180:200
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SegMap32OvlInit ds.l 32 ; 200:280
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BATs ds.l 32 ; 280:300
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CurIBAT0 ds BAT ; 300:308
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CurIBAT1 ds BAT ; 308:310
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CurIBAT2 ds BAT ; 310:318
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CurIBAT3 ds BAT ; 318:320
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CurDBAT0 ds BAT ; 320:328
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CurDBAT1 ds BAT ; 328:330
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CurDBAT2 ds BAT ; 330:338
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CurDBAT3 ds BAT ; 338:340
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NCBPointerCache
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NCBCacheLA0 ds.l 1 ; 340
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NCBCachePA0 ds.l 1 ; 344
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NCBCacheLA1 ds.l 1 ; 348
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NCBCachePA1 ds.l 1 ; 34c
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NCBCacheLA2 ds.l 1 ; 350
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NCBCachePA2 ds.l 1 ; 354
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NCBCacheLA3 ds.l 1 ; 358
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NCBCachePA3 ds.l 1 ; 35c
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NCBPointerCacheEnd
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VecTblSystem ds VecTbl ; 360:420 ; when 68k emulator is running, *or* any MTask
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VecTblAlternate ds VecTbl ; 420:4e0 ; native PowerPC in blue task
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VecTblMemRetry ds VecTbl ; 4e0:5a0 ; "FDP" instruction emulation
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FloatEmScratch ds.d 1 ; 5a0:5a8
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TopOfFreePages ds.l 1 ; 5a8 ; gotten from the old SPRG0
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ds.l 1 ; 5ac
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PARPerSegmentPLEPtrs ds.l 4 ; 5b0:5c0 ; for each PAR segment, a ptr into the PAR PageList
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FloatingPtTemp1 ds.l 1 ; 5c0
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FloatingPtTemp2 ds.l 1 ; 5c4
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SupervisorMemLayout ds MemLayout ; 5c8:5d0
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UserMemLayout ds MemLayout ; 5d0:5d8
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CpuMemLayout ds MemLayout ; 5d8:5e0
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OverlayMemLayout ds MemLayout ; 5e0:5e8
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CurrentMemLayout ds MemLayout ; 5e8:5f0
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KCallTbl ds KCallTbl ; 5f0:630
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PA_ConfigInfo ds.l 1 ; 630
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PA_EmulatorData ds.l 1 ; 634
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KernelMemoryBase ds.l 1 ; 638
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KernelMemoryEnd ds.l 1 ; 63c ; Top of HTAB (and entire kernel reserved area). Set by Init.s
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PA_RelocatedLowMemInit ds.l 1 ; 640 ; From ConfigInfo. Ptr to Mac LowMem vars, which Init.s sets up
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SharedMemoryAddr ds.l 1 ; 644 ; From ConfigInfo. Not sure what latest use is.
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LA_EmulatorKernelTrapTable ds.l 1 ; 648 ; Calculated from ConfigInfo.
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PA_NanoKernelCode ds.l 1 ; 64c ; Calculated by NanoKernel itself.
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PA_FDP ds.l 1 ; 650 ; See notes in NanoKernel. Very interesting.
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LA_ECB ds.l 1 ; 654 ; Logical ptr into EDP.
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PA_ECB ds.l 1 ; 658 ; gets called "system context"
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PA_ContextBlock ds.l 1 ; 65c ; moved to EWA (per-CPU) in NKv2
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Flags ds.l 1 ; 660 ; moved to EWA (per-CPU) in NKv2
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Enables ds.l 1 ; 664 ; moved to EWA (per-CPU) in NKv2
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OtherContextDEC ds.l 1 ; 668 ; ticks the *inactive* context has left out of 1s
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PA_PageMapEnd ds.l 1 ; 66c ; Set at the same time as PA_PageMapStart below...
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TestIntMaskInit ds.l 1 ; 670 ; These are all copied from ConfigInfo...
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PostIntMaskInit ds.l 1 ; 674
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ClearIntMaskInit ds.l 1 ; 678
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PA_EmulatorIplValue ds.l 1 ; 67c ; Physical ptr into EDP
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DebugIntPtr ds.l 1 ; 680 ; Within (debug?) shared memory
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PA_PageMapStart ds.l 1 ; 684 ; Physical ptr to PageMap (= KDP+0x920)
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PageAttributeInit ds.l 1 ; 688 ; defaults for page table entries (see ConfigInfo)
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HtabTempPage ds.l 1 ; 68c
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HtabTempEntryPtr ds.l 1 ; 690
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NewestPageInHtab ds.l 1 ; 694
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ApproxCurrentPTEG ds.l 1 ; 698
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OverflowingPTEG ds.l 1 ; 69c
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PTEGMask ds.l 1 ; 6a0
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HTABORG ds.l 1 ; 6a4
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VMLogicalPages ds.l 1 ; 6a8 ; set at init and changed by VMInit
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TotalPhysicalPages ds.l 1 ; 6ac ; does not take into acct maximum MacOS memory
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PARPageListPtr ds.l 1 ; 6b0 ; VM puts this in system heap
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VMMaxVirtualPages ds.l 1 ; 6b4 ; always 5fffe000, even with VM on
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org 0x700
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CrashTop
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CrashR0 ds.l 1 ; 700
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CrashR1 ds.l 1 ; 704
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CrashR2 ds.l 1 ; 708
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CrashR3 ds.l 1 ; 70c
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CrashR4 ds.l 1 ; 710
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CrashR5 ds.l 1 ; 714
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CrashR6 ds.l 1 ; 718
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CrashR7 ds.l 1 ; 71c
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CrashR8 ds.l 1 ; 720
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CrashR9 ds.l 1 ; 724
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CrashR10 ds.l 1 ; 728
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CrashR11 ds.l 1 ; 72c
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CrashR12 ds.l 1 ; 730
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CrashR13 ds.l 1 ; 734
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CrashR14 ds.l 1 ; 738
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CrashR15 ds.l 1 ; 73c
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CrashR16 ds.l 1 ; 740
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CrashR17 ds.l 1 ; 744
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CrashR18 ds.l 1 ; 748
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CrashR19 ds.l 1 ; 74c
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CrashR20 ds.l 1 ; 750
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CrashR21 ds.l 1 ; 754
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CrashR22 ds.l 1 ; 758
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CrashR23 ds.l 1 ; 75c
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CrashR24 ds.l 1 ; 760
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CrashR25 ds.l 1 ; 764
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CrashR26 ds.l 1 ; 768
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CrashR27 ds.l 1 ; 76c
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CrashR28 ds.l 1 ; 770
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CrashR29 ds.l 1 ; 774
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CrashR30 ds.l 1 ; 778
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CrashR31 ds.l 1 ; 77c
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CrashCR ds.l 1 ; 780
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CrashMQ ds.l 1 ; 784
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CrashXER ds.l 1 ; 788
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CrashLR ds.l 1 ; 78c
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CrashCTR ds.l 1 ; 790
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CrashPVR ds.l 1 ; 794
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CrashDSISR ds.l 1 ; 798
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CrashDAR ds.l 1 ; 79c
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CrashRTCU ds.l 1 ; 7a0
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CrashRTCL ds.l 1 ; 7a4
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CrashDEC ds.l 1 ; 7a8
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CrashHID0 ds.l 1 ; 7ac
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CrashSDR1 ds.l 1 ; 7b0
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CrashSRR0 ds.l 1 ; 7b4
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CrashSRR1 ds.l 1 ; 7b8
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CrashMSR ds.l 1 ; 7bc
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CrashSR0 ds.l 1 ; 7c0
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CrashSR1 ds.l 1 ; 7c4
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CrashSR2 ds.l 1 ; 7c8
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CrashSR3 ds.l 1 ; 7cc
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CrashSR4 ds.l 1 ; 7d0
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CrashSR5 ds.l 1 ; 7d4
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CrashSR6 ds.l 1 ; 7d8
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CrashSR7 ds.l 1 ; 7dc
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CrashSR8 ds.l 1 ; 7e0
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CrashSR9 ds.l 1 ; 7e4
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CrashSR10 ds.l 1 ; 7e8
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CrashSR11 ds.l 1 ; 7ec
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CrashSR12 ds.l 1 ; 7f0
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CrashSR13 ds.l 1 ; 7f4
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CrashSR14 ds.l 1 ; 7f8
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CrashSR15 ds.l 1 ; 7fc
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CrashF0 ds.d 1 ; 800
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CrashF1 ds.d 1 ; 808
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CrashF2 ds.d 1 ; 810
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CrashF3 ds.d 1 ; 818
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CrashF4 ds.d 1 ; 820
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CrashF5 ds.d 1 ; 828
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CrashF6 ds.d 1 ; 830
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CrashF7 ds.d 1 ; 838
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CrashF8 ds.d 1 ; 840
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CrashF9 ds.d 1 ; 848
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CrashF10 ds.d 1 ; 850
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CrashF11 ds.d 1 ; 858
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CrashF12 ds.d 1 ; 860
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CrashF13 ds.d 1 ; 868
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CrashF14 ds.d 1 ; 870
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CrashF15 ds.d 1 ; 878
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CrashF16 ds.d 1 ; 880
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CrashF17 ds.d 1 ; 888
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CrashF18 ds.d 1 ; 890
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CrashF19 ds.d 1 ; 898
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CrashF20 ds.d 1 ; 8a0
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CrashF21 ds.d 1 ; 8a8
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CrashF22 ds.d 1 ; 8b0
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CrashF23 ds.d 1 ; 8b8
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CrashF24 ds.d 1 ; 8c0
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CrashF25 ds.d 1 ; 8c8
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CrashF26 ds.d 1 ; 8d0
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CrashF27 ds.d 1 ; 8d8
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CrashF28 ds.d 1 ; 8e0
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CrashF29 ds.d 1 ; 8e8
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CrashF30 ds.d 1 ; 8f0
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CrashF31 ds.d 1 ; 8f8
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CrashFPSCR ds.l 1 ; 900
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CrashKernReturn ds.l 1 ; 904
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CrashUnknown ds.l 1 ; 908
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CrashBtm
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org 0xCC0
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SysInfo ds NKSystemInfo ; cc0:d80
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DiagInfo ds NKDiagInfo ; d80:e80
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NKInfo ds NKNanoKernelInfo ; e80:f80
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ProcInfo ds NKProcessorInfo ; f80:fc0
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InfoRecBlk ds.b 64 ; fc0:1000 ; Access using ptr equates in InfoRecords
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ENDR
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########################################################################
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CB RECORD 0,INCR ; ContextBlock (Emulator/System or Native/Alternate)
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Flags ds.l 1 ; 000
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Enables ds.l 1 ; 004
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ds.l 1 ; 008
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ds.l 1 ; 00c
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ds.l 1 ; 010
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ds.l 1 ; 014
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ds.l 1 ; 018
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ds.l 1 ; 01c
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ds.l 1 ; 020
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LowSave17 ds.l 1 ; 024
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LowSave20 ds.l 1 ; 028
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LowSave21 ds.l 1 ; 02c
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ds.l 1 ; 030
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LowSave19 ds.l 1 ; 034
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ds.l 1 ; 038
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LowSave18 ds.l 1 ; 03c
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ExceptionOriginFlags ds.l 1 ; 040 ; from before exception
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ExceptionOriginEnables ds.l 1 ; 044 ; from before exception
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ds.l 1 ; 048
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ExceptionHandler ds.l 1 ; 04c
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ds.l 1 ; 050
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ExceptionHandlerR4 ds.l 1 ; 054
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ds.l 1 ; 058
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ExceptionHandlerRetAddr ds.l 1 ; 05c
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ds.l 1 ; 060
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PropagateR17 ds.l 1 ; 064
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PropagateR20 ds.l 1 ; 068
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PropagateR21 ds.l 1 ; 06c
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ds.l 1 ; 070
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PropagateR19 ds.l 1 ; 074
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ds.l 1 ; 078
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PropagateR18 ds.l 1 ; 07c
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ds.l 1 ; 080
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ExceptionOriginAddr ds.l 1 ; 084
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ds.l 1 ; 088
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ExceptionOriginLR ds.l 1 ; 08c
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ds.l 1 ; 090
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ExceptionOriginR3 ds.l 1 ; 094
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ds.l 1 ; 098
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ExceptionOriginR4 ds.l 1 ; 09c
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ds.l 1 ; 0a0
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MSR ds.l 1 ; 0a4
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ds.l 1 ; 0a8
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ds.l 1 ; 0ac
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ds.l 1 ; 0b0
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ds.l 1 ; 0b4
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ds.l 1 ; 0b8
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ds.l 1 ; 0bc
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ds.l 1 ; 0c0
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MQ ds.l 1 ; 0c4 ; 601 only
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ds.l 1 ; 0c8
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ds.l 1 ; 0cc
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ds.l 1 ; 0d0
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XER ds.l 1 ; 0d4
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ds.l 1 ; 0d8
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CR ds.l 1 ; 0dc
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ds.l 1 ; 0e0
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ds.l 1 ; 0e4
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ds.l 1 ; 0e8
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LR ds.l 1 ; 0ec
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ds.l 1 ; 0f0
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CTR ds.l 1 ; 0f4
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ds.l 1 ; 0f8
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SRR0 ds.l 1 ; 0fc
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ds.l 1
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r0 ds.l 1 ; 104
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ds.l 1
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r1 ds.l 1 ; 10c
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ds.l 1
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r2 ds.l 1 ; 114
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ds.l 1
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r3 ds.l 1 ; 11c
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ds.l 1
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r4 ds.l 1 ; 124
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ds.l 1
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r5 ds.l 1 ; 12c
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ds.l 1
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r6 ds.l 1 ; 134
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ds.l 1
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r7 ds.l 1 ; 13c
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ds.l 1
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r8 ds.l 1 ; 144
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ds.l 1
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r9 ds.l 1 ; 14c
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ds.l 1
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r10 ds.l 1 ; 154
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ds.l 1
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r11 ds.l 1 ; 15c
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ds.l 1
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r12 ds.l 1 ; 164
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ds.l 1
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r13 ds.l 1 ; 16c
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ds.l 1
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r14 ds.l 1 ; 174
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ds.l 1
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r15 ds.l 1 ; 17c
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ds.l 1
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r16 ds.l 1 ; 184
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ds.l 1
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r17 ds.l 1 ; 18c
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ds.l 1
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r18 ds.l 1 ; 194
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ds.l 1
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r19 ds.l 1 ; 19c
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ds.l 1
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r20 ds.l 1 ; 1a4
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ds.l 1
|
|
r21 ds.l 1 ; 1ac
|
|
ds.l 1
|
|
r22 ds.l 1 ; 1b4
|
|
ds.l 1
|
|
r23 ds.l 1 ; 1bc
|
|
ds.l 1
|
|
r24 ds.l 1 ; 1c4
|
|
ds.l 1
|
|
r25 ds.l 1 ; 1cc
|
|
ds.l 1
|
|
r26 ds.l 1 ; 1d4
|
|
ds.l 1
|
|
r27 ds.l 1 ; 1dc
|
|
ds.l 1
|
|
r28 ds.l 1 ; 1e4
|
|
ds.l 1
|
|
r29 ds.l 1 ; 1ec
|
|
ds.l 1
|
|
r30 ds.l 1 ; 1f4
|
|
ds.l 1
|
|
r31 ds.l 1 ; 1fc
|
|
FloatRegisters ds.d 32 ; 200:300
|
|
endr
|