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144 lines
4.4 KiB
C
144 lines
4.4 KiB
C
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/* $VER: ppc_disasm.h V1.4 (29.08.2001)
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*
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* Disassembler module for the PowerPC microprocessor family
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* Copyright (c) 1998-2001 Frank Wille
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*
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* ppc_disasm.c is freeware and may be freely redistributed as long as
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* no modifications are made and nothing is charged for it.
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* Non-commercial usage is allowed without any restrictions.
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* EVERY PRODUCT OR PROGRAM DERIVED DIRECTLY FROM MY SOURCE MAY NOT BE
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* SOLD COMMERCIALLY WITHOUT PERMISSION FROM THE AUTHOR.
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*
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*
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* v1.4 (29.08.2001) phx
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* AltiVec support.
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* v0.1 (23.05.1998) phx
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* First version, which implements all PowerPC instructions.
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* v0.0 (09.05.1998) phx
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* File created.
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*/
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#ifndef PPC_DISASM_H
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#define PPC_DISASM_H
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#define PPC_GEKKO
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/* version/revision */
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#define PPCDISASM_VER 1
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#define PPCDISASM_REV 4
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/* typedefs */
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typedef unsigned int ppc_word;
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#ifndef NULL
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#define NULL (0L)
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#endif
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/* endianess */
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#define LITTLEENDIAN
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#endif
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#if !defined(BIGENDIAN) && !defined(LITTLEENDIAN)
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#error Define either BIGENDIAN or LITTLEENDIAN!
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#define LITTLEENDIAN
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#endif
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/* general defines */
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#define PPCIDXMASK 0xfc000000
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#define PPCIDX2MASK 0x000007fe
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#define PPCDMASK 0x03e00000
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#define PPCAMASK 0x001f0000
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#define PPCBMASK 0x0000f800
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#define PPCCMASK 0x000007c0
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#define PPCMMASK 0x0000003e
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#define PPCCRDMASK 0x03800000
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#define PPCCRAMASK 0x001c0000
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#define PPCLMASK 0x00600000
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#define PPCOE 0x00000400
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#define PPCVRC 0x00000400
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#define PPCDST 0x02000000
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#define PPCSTRM 0x00600000
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#define PPCIDXSH 26
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#define PPCDSH 21
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#define PPCASH 16
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#define PPCBSH 11
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#define PPCCSH 6
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#define PPCMSH 1
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#define PPCCRDSH 23
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#define PPCCRASH 18
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#define PPCLSH 21
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#define PPCIDX2SH 1
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#define PPCGETIDX(x) (((x)&PPCIDXMASK)>>PPCIDXSH)
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#define PPCGETD(x) (((x)&PPCDMASK)>>PPCDSH)
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#define PPCGETA(x) (((x)&PPCAMASK)>>PPCASH)
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#define PPCGETB(x) (((x)&PPCBMASK)>>PPCBSH)
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#define PPCGETC(x) (((x)&PPCCMASK)>>PPCCSH)
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#define PPCGETM(x) (((x)&PPCMMASK)>>PPCMSH)
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#define PPCGETCRD(x) (((x)&PPCCRDMASK)>>PPCCRDSH)
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#define PPCGETCRA(x) (((x)&PPCCRAMASK)>>PPCCRASH)
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#define PPCGETL(x) (((x)&PPCLMASK)>>PPCLSH)
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#define PPCGETIDX2(x) (((x)&PPCIDX2MASK)>>PPCIDX2SH)
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#define PPCGETSTRM(x) (((x)&PPCSTRM)>>PPCDSH)
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#ifdef PPC_GEKKO
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#define GEKKOLASMASK 0x0000007e
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#define GEKKOWMASK 0x00000400
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#define GEKKOIMASK 0x00000380
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#define GEKKOW2MASK 0x00008000
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#define GEKKOI2MASK 0x00007000
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#define GEKKOVMASK 0x00000FFF
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#define GEKKOLASSH 1
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#define GEKKOWSH 10
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#define GEKKOISH 7
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#define GEKKOW2SH 15
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#define GEKKOI2SH 12
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#define GEKKOVSH 0
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#define GEKKOGETLASID(x) (((x)&GEKKOLASMASK)>>GEKKOLASSH)
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#define GEKKOGETW(x) (((x)&GEKKOWMASK)>>GEKKOWSH)
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#define GEKKOGETI(x) (((x)&GEKKOIMASK)>>GEKKOISH)
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#define GEKKOGETW2(x) (((x)&GEKKOW2MASK)>>GEKKOW2SH)
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#define GEKKOGETI2(x) (((x)&GEKKOI2MASK)>>GEKKOI2SH)
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#define GEKKOGETV(x) (((x)&GEKKOVMASK)>>GEKKOVSH)
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#endif
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/* Disassembler structure, the interface to the application */
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struct DisasmPara_PPC {
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ppc_word *instr; /* pointer to instruction to disassemble */
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ppc_word *iaddr; /* instr.addr., usually the same as instr */
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char *opcode; /* buffer for opcode, min. 10 chars. */
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char *operands; /* operand buffer, min. 24 chars. */
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/* changed by disassembler: */
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unsigned char type; /* type of instruction, see below */
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unsigned char flags; /* additional flags */
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unsigned short sreg; /* register in load/store instructions */
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ppc_word displacement; /* branch- or load/store displacement */
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};
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#define PPCINSTR_OTHER 0 /* no additional info for other instr. */
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#define PPCINSTR_BRANCH 1 /* branch dest. = PC+displacement */
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#define PPCINSTR_LDST 2 /* load/store instruction: displ(sreg) */
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#define PPCINSTR_IMM 3 /* 16-bit immediate val. in displacement */
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#define PPCF_ILLEGAL (1<<0) /* illegal PowerPC instruction */
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#define PPCF_UNSIGNED (1<<1) /* unsigned immediate instruction */
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#define PPCF_SUPER (1<<2) /* supervisor level instruction */
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#define PPCF_64 (1<<3) /* 64-bit only instruction */
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#define PPCF_ALTIVEC (1<<4) /* AltiVec instruction */
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/* ppc_disasm.o prototypes */
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#ifndef PPC_DISASM_C
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extern ppc_word *PPC_Disassemble(struct DisasmPara_PPC *);
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#endif
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