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Created MrC (markdown)

ksherlock 2014-12-31 05:06:44 -08:00
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MrC.md Normal file

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MrC / MrCPP doesn't seem to work in some cases, exiting with a status of 2 (which isn't documented).
`bwt_ConstInteger` -> `nmCreateMappedNode` -> `exit(2)`
D5 is $000000d in this case.
$00CB3136 MOVE.L D5,-(A7) ; 2F05
$00CB3138 PEA $0056 ; 4878 0056
$00CB313C JSR nmCreateMappedNode ; 4EB9 00CBBE84
$00CBBE84 LINK A6,#$FE70 ; 4E56 FE70
$00CBBE88 MOVEM.L A432D6543,-(A7) ; 48E7 1E38
$00CBBE8C MOVE.L $0008(A6),D6 ; 2C2E 0008
$00CBBE90 MOVE.L $000C(A6),D5 ; 2A2E 000C
$00CBBE94 TST.L D5 ; 4A85
$00CBBE96 BLE.W $00CBC0AE ; 6F00 0216
$00CBBE9A MOVE.L $00F1D540,D0 ; 2039 00F1D540 -- 0
$00CBBEA0 ADD.L D0,D5 ; DA80
$00CBBEA2 CMP.L $00F1D524,D5 ; BAB9 00F1D524 -- 00 00 03 e8
$00CBBEA8 BCS.B $00CBBEB8 ; 650E
...
$00CBBEB8 CMP.L $00F1D528,D5 ; BAB9 00F1D528 --- 00 00 00 0e
$00CBBEBE BCS.B $00CBBECA ; 650A
...
$00CBBECA MOVEA.L $00F1D52C,A0 ; 2079 00F1D52C -- 00 ab f9 10
$00CBBED0 MOVE.B $00(A0,D5.L),D0 ; 1030 5800
abf910: 02 02 01 01 01 01 01 01 01 01 00 01 01 01 00 00 ................
d0 = 1
$00CBBED4 EXT.L D0 ; 49C0
$00CBBED6 MOVEQ.L #$00000001,D1 ; 7201
$00CBBED8 CMP.L D1,D0 ; B081
$00CBBEDA BEQ.B $00CBBEEA ; 670E
...
$00CBBEEA PEA $0002 ; 4878 0002
$00CBBEEE JSR $00F4391A ; 4EB9 00F4391A
$00F4391A JMP exit ; 4EF9 00E160E0