ReSrc4 - MC680x0 Disassembler

Portable Amiga 68k Hunk File Disassembler.

This disassembler was tested against the Amiga game Civilization (ECS) and Lightwave for FPU support plus lha.exe v2.15 for 020 Opcodes.

Features

Library Call Recognition

It attempts to convert library calls into a more readable format. For example:

• jsr (-552,a6) will be converted to jsr (_LVOOpenLibrary,a6) when it can identify that a6 holds the ExecBase.
• It can also detect calls to DiskFont, Dos, Graphics, and Intuition library calls.

Jump Table Recognition

There is also some JumpTable detection but its far from perfect. You will likely need to create a config file and use the Relative16 option.

Effective Address Modes

Modes

• PC – Program Counter
• d8 – Signed 8-bit value
• d16 – Signed 16-bit value
• d32 – Signed 32-bit value
• An – Ax Register
• Dn – Dx Register
• Xn – Ax/Dx Register [W/L] with scale
• xxx – Address
• data – 32-bit data value

Supported

• Dn
• An
• ( An )
• ( An )+
• -( An )
• ( d16 , An )
• ( d16 , PC )
• ( d8 , An , Xn )
• ( d8 , PC , Xn )
• ( bd , An , Xn )
• ( bd , PC , Xn )
• ( [ bd , An ] , Xn , od )
• ( [ bd , PC ] , Xn , od )
• ( [ bd , An , Xn ] , od )
• ( [ bd , PC , Xn ] , od )
• ( xxx ).w
• ( xxx ).l
• # <data>

***CPU Opcodes list

Show CPU opcodes

• Abcd
• Add
• Adda
• Addi
• Addq
• Addx
• And
• Andi
• Asl
• Asr
• Bcc
• BChg
• BClr
• BFChg
• BFClr
• BFExts
• BFExtu
• BFFFO
• BFIns
• BFTst
• Bcs
• Beq
• Bge
• BGnd
• Bgt
• Bhi
• Bkpt
• Ble
• Bls
• Blt
• Bmi
• Bne
• Bpl
• Bra
• BSet
• Bsr
• BTst
• Bvc
• Bvs
• Callm
• Chk
• Chk2
• Clr
• Cmp
• Cmp2
• Cmpa
• Cmpi
• Cmpm
• DBcc
• DBcs
• DBeq
• DBf
• DBge
• DBgt
• DBhi
• DBle
• DBls
• DBlt
• DBmi
• DBne
• DBpl
• DBt
• DBvc
• DBvs
• Divs
• Divsl
• Divu
• Eor
• Eori
• Exg
• Ext
• Extb
• Illegal
• Jmp
• Jsr
• Lea
• Link
• LPStop
• Lsl
• Lsr
• Move
• Move16
• Movea
• Movec
• Movem
• Movep
• Moveq
• Moves
• Muls
• Mulu
• Nbcd
• Neg
• Negx
• Nop
• Not
• Or
• Ori
• Pack
• Pea
• Reset
• Rol
• Ror
• Roxl
• Roxr
• Rtd
• Rte
• Rtm
• Rtr
• Rts
• Sbcd
• Scc
• Scs
• Seq
• Sf
• Sge
• Sgt
• Shi
• Sle
• Sls
• Slt
• Smi
• Sne
• Spl
• St
• Sub
• Suba
• Subi
• Subq
• Subx
• Svc
• Svs
• Swap
• Tas
• Trap
• Trapcc
• Trapcs
• Trapeq
• Trapf
• Trapge
• Trapgt
• Traphi
• Traple
• Trapls
• Traplt
• Trapmi
• Trapne
• Trappl
• Trapt
• Trapv
• Trapvc
• Trapvs
• Tst
• Unlk
• Unpk

***FPU Opcodes list

Show FPU opcodes

• FAbs
• FACos
• FAdd
• FASin
• FATan
• FATanh
• FBeq
• FBf
• FBge
• FBgl
• FBgle
• FBgt
• FBle
• FBlt
• FBne
• FBnge
• FBngl
• FBngle
• FBngt
• FBoge
• FBogl
• FBogt
• FBole
• FBolt
• FBor
• FBseq
• FBsne
• FBst
• FBt
• FBueq
• FBuge
• FBugt
• FBule
• FBult
• FBun
• FCmp
• FCos
• FCosh
• FDAbs
• FDAdd
• FDDiv
• FDiv
• FDMove
• FDMul
• FDNeg
• FDSqrt
• FDSub
• FEtox
• FEtoxm1
• FGetexp
• FGetman
• FInt
• FIntrz
• FLog2
• FLog10
• FLogn
• FLognp1
• FMod
• FMove
• FMovecr
• FMovem (Partially implemented)
• FMul
• FNeg
• FNop
• FRem
• FRestore
• FSAbs
• FSAdd
• FScale
• FSDiv
• FSeq
• FSf
• FSge
• FSgl
• FSgldiv
• FSgle
• FSglmul
• FSgt
• FSin
• FSincos
• FSinh
• FSle
• FSlt
• FSMove
• FSMul
• FSne
• FSNeg
• FSnge
• FSngl
• FSngle
• FSngt
• FSnle
• FSnlt
• FSoge
• FSogl
• FSogt
• FSole
• FSolt
• FSor
• FSqrt
• FSseq
• FSsne
• FSSqrt
• FSst
• FSSub
• FSt
• FSub
• FSueq
• FSuge
• FSugt
• FSule
• FSult
• FSun
• FTan
• FTanh
• FTentox
• FTst
• FTwotox

Hunk / FHR Containers

Again, only what is needed has been implemented, so it's a little limited. The original Civ game did not include Symbol, DRel32, and Relloc32Short, but when I assembled the disassembled source with vasm, those hunks were used.

Added my own custom FHR Container, for testing.

Hunk Container

Hunks Supported

Label	Hex ID	Dec ID	Description / Note
HUNK_CODE	0x03E9	1001	Code Section
HUNK_DATA	0x03EA	1002	Data Section
HUNK_BSS	0x03EB	1003	Bss Section
HUNK_RELOC32	0x03EC	1004
HUNK_SYMBOL	0x03F0	1008
HUNK_DEBUG	0x03F1	1009	skipping only
HUNK_END	0x03F2	1010
HUNK_HEADER	0x03F3	1011	File Header
HUNK_DREL32	0x03F7	1015	Same as HUNK_RELRELOC32
HUNK_RELOC32SHORT	0x03FC	1020	Same as HUNK_DREL32
HUNK_RELRELOC32	0x03FD	1021

FHR Container

FHR Chunks Supported

Label	ID	Description
FHR_HEADER	FHR\0	File Header
FHR_COD0	COD\0	Code Section (Exe File)
FHR_DAT0	DAT\0	Data Section (Exe File)
FHR_BSS0	BSS\0	BSS Section (Exe File)
FHR_END0	END\0	End of Section