wiiqt6/symbolizer/ppc_disasm.h

144 lines
4.4 KiB
C

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