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wiiqt/symbolizer/ppc_disasm.c

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* symbolizer: follow global variables from known functions to identify the unknown ones
2011-12-13 07:07:45 +01:00
/* $VER: ppc_disasm.c 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.
* v1.3 (09.03.2001) phx
* Last two operands in 4-operand float instructions were swapped.
* v1.2 (09.11.2000) phx
* Fixed syntax of mffs, mtfsf and mtfsfi.
* v1.1 (19.02.2000) phx
* fabs wasn't recognized.
* v1.0 (30.01.2000) phx
* stfsx, stfdx, lfsx, lfdx, stfsux, stfdux, lfsux, lfdux, etc.
* printed "rd,ra,rb" as operands instead "fd,ra,rb".
* v0.4 (01.06.1999) phx
* 'stwm' shoud have been 'stmw'.
* v0.3 (17.11.1998) phx
* The OE-types (e.g. addo, subfeo, etc.) didn't work for all
* instructions.
* AA-form branches have an absolute destination.
* addze and subfze must not have a third operand.
* sc was not recognized.
* v0.2 (29.05.1998) phx
* Sign error. SUBI got negative immediate values.
* v0.1 (23.05.1998) phx
* First version, which implements all PowerPC instructions.
* v0.0 (09.05.1998) phx
* File created.
*/
#define PPC_DISASM_C
#define NEG_CUTTOFF 0x8000
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include "ppc_disasm.h"
static char *trap_condition[32] = {
NULL,"lgt","llt",NULL,"eq","lge","lle",NULL,
"gt",NULL,NULL,NULL,"ge",NULL,NULL,NULL,
"lt",NULL,NULL,NULL,"le",NULL,NULL,NULL,
"ne",NULL,NULL,NULL,NULL,NULL,NULL,NULL
};
static char *cmpname[4] = {
"cmpw","cmpd","cmplw","cmpld"
};
static char *b_ext[4] = {
"","l","a","la"
};
static char *b_condition[8] = {
"ge","le","ne","ns","lt","gt","eq","so"
};
static char *b_decr[16] = {
"nzf","zf",NULL,NULL,"nzt","zt",NULL,NULL,
"nz","z",NULL,NULL,"nz","z",NULL,NULL
};
static char *regsel[2] = {
"","r"
};
static char *oesel[2] = {
"","o"
};
static char *rcsel[2] = {
"","."
};
static char *ldstnames[] = {
"lwz","lwzu","lbz","lbzu","stw","stwu","stb","stbu","lhz","lhzu",
"lha","lhau","sth","sthu","lmw","stmw","lfs","lfsu","lfd","lfdu",
"stfs","stfsu","stfd","stfdu"
};
static char *vmnames[] = {
"mhaddshs","mhraddshs","mladduhm",NULL,"msumubm","msummbm",
"msumuhm","msumuhs","msumshm","msumshs","sel","perm",
"sldoi",NULL,"maddfp","nmsubfp"
};
static void ierror(char *errtxt,...)
/* display internal error and quit program */
{
va_list vl;
fprintf(stderr,"\nINTERNAL ERROR (PPC disassembler): ");
va_start(vl,errtxt);
vfprintf(stderr,errtxt,vl);
va_end(vl);
fprintf(stderr,".\nAborting.\n");
exit(EXIT_FAILURE);
}
static ppc_word swapda(ppc_word w)
{
return ((w&0xfc00ffff)|((w&PPCAMASK)<<5)|((w&PPCDMASK)>>5));
}
static ppc_word swapab(ppc_word w)
{
return ((w&0xffe007ff)|((w&PPCBMASK)<<5)|((w&PPCAMASK)>>5));
}
static void ill(struct DisasmPara_PPC *dp,ppc_word in)
{
strcpy(dp->opcode,".word");
sprintf(dp->operands,"0x%08lx",(unsigned long)in);
dp->flags |= PPCF_ILLEGAL;
}
static void imm(struct DisasmPara_PPC *dp,ppc_word in,int uimm,int type)
/* Generate immediate instruction operand. */
/* type 0: D-mode, D,A,imm */
/* type 1: S-mode, A,S,imm */
/* type 2: S/D register is ignored (trap,cmpi) */
/* type 3: A register is ignored (li) */
{
char *s;
unsigned int i = (unsigned int)(in & 0xffff);
dp->type = PPCINSTR_IMM;
if (!uimm) {
// if (i > 0x7fff)
// i -= 0x10000;
}
else
dp->flags |= PPCF_UNSIGNED;
dp->displacement = i;
switch (type) {
case 0:
if( i > NEG_CUTTOFF )
{
sprintf(dp->operands,"r%d,r%d,-0x%x",(int)PPCGETD(in),(int)PPCGETA(in),0x10000u - i );
}
else
{
sprintf(dp->operands,"r%d,r%d,0x%x",(int)PPCGETD(in),(int)PPCGETA(in),i);
}
break;
case 1:
if( i > NEG_CUTTOFF )
{
sprintf(dp->operands,"r%d,r%d,-0x%x",(int)PPCGETA(in),(int)PPCGETD(in), 0x10000u - i);
}
else
{
sprintf(dp->operands,"r%d,r%d,0x%x",(int)PPCGETA(in),(int)PPCGETD(in),i);
}
break;
case 2:
if( i > NEG_CUTTOFF )
{
sprintf(dp->operands,"r%d,-0x%x",(int)PPCGETA(in),0x10000u - i);
}
else
{
sprintf(dp->operands,"r%d,0x%x",(int)PPCGETA(in),i);
}
break;
case 3:
if( i > NEG_CUTTOFF )
{
sprintf(dp->operands,"r%d,-0x%x",(int)PPCGETD(in),0x10000u - i);
}
else
{
sprintf(dp->operands,"r%d,0x%x",(int)PPCGETD(in),i);
}
break;
default:
ierror("imm(): Wrong type");
break;
}
}
static void ra_rb(char *s,ppc_word in)
{
sprintf(s,"r%d,r%d",(int)PPCGETA(in),(int)PPCGETB(in));
}
static char *rd_ra_rb(char *s,ppc_word in,int mask)
{
static const char *fmt = "r%d,";
if (mask) {
if (mask & 4)
s += sprintf(s,fmt,(int)PPCGETD(in));
if (mask & 2)
s += sprintf(s,fmt,(int)PPCGETA(in));
if (mask & 1)
s += sprintf(s,fmt,(int)PPCGETB(in));
*--s = '\0';
}
else
*s = '\0';
return (s);
}
static char *fd_ra_rb(char *s,ppc_word in,int mask)
{
static const char *ffmt = "f%d,";
static const char *rfmt = "r%d,";
if (mask) {
if (mask & 4)
s += sprintf(s,ffmt,(int)PPCGETD(in));
if (mask & 2)
s += sprintf(s,rfmt,(int)PPCGETA(in));
if (mask & 1)
s += sprintf(s,rfmt,(int)PPCGETB(in));
*--s = '\0';
}
else
*s = '\0';
return (s);
}
static char *vd_va_vb(char *s,ppc_word in,int mask)
{
static const char *fmt = "v%d,";
if (mask) {
if (mask & 4)
s += sprintf(s,fmt,(int)PPCGETD(in));
if (mask & 2) {
if (mask & 16) { /* A = SIMM */
int a = PPCGETA(in);
s += sprintf(s,fmt+1,(a>15)?(a-32):a);
}
else if (mask & 8) /* A = UIMM */
s += sprintf(s,fmt+1,(int)PPCGETA(in));
else
s += sprintf(s,fmt,(int)PPCGETA(in));
}
if (mask & 1)
s += sprintf(s,fmt,(int)PPCGETB(in));
*--s = '\0';
}
else
*s = '\0';
return (s);
}
static void trapi(struct DisasmPara_PPC *dp,ppc_word in,unsigned char dmode)
{
char *cnd;
if (cnd = trap_condition[PPCGETD(in)]) {
dp->flags |= dmode;
sprintf(dp->opcode,"t%c%s",dmode?'d':'w',cnd);
imm(dp,in,0,2);
}
else
ill(dp,in);
}
static void cmpi(struct DisasmPara_PPC *dp,ppc_word in,int uimm)
{
char *oper = dp->operands;
int i = (int)PPCGETL(in);
if (i < 2) {
if (i)
dp->flags |= PPCF_64;
sprintf(dp->opcode,"%si",cmpname[uimm*2+i]);
if (i = (int)PPCGETCRD(in)) {
sprintf(oper,"cr%c,",'0'+i);
dp->operands += 4;
}
imm(dp,in,uimm,2);
dp->operands = oper;
}
else
ill(dp,in);
}
static void addi(struct DisasmPara_PPC *dp,ppc_word in,char *ext)
{
if ((in&0x08000000) && !PPCGETA(in)) {
sprintf(dp->opcode,"l%s",ext); /* li, lis */
imm(dp,in,0,3);
}
else {
sprintf(dp->opcode,"%s%s",(in&0x8000)?"sub":"add",ext);
if (in & 0x8000)
in = (in^0xffff) + 1;
imm(dp,in,1,0);
}
}
static int branch(struct DisasmPara_PPC *dp,ppc_word in,
char *bname,int aform,int bdisp)
/* build a branch instr. and return number of chars written to operand */
{
int bo = (int)PPCGETD(in);
int bi = (int)PPCGETA(in);
char y = (char)(bo & 1);
int opercnt = 0;
char *ext = b_ext[aform*2+(int)(in&1)];
if (bdisp < 0)
y ^= 1;
y = y ? '+':'-';
if (bo & 4) {
/* standard case - no decrement */
if (bo & 16) {
/* branch always */
if (PPCGETIDX(in) != 16) {
sprintf(dp->opcode,"b%s%s",bname,ext);
}
else {
sprintf(dp->opcode,"bc%s",ext);
opercnt = sprintf(dp->operands,"0x%x,0x%x",bo,bi);
}
}
else {
/* branch conditional */
sprintf(dp->opcode,"b%s%s%s%c",b_condition[((bo&8)>>1)+(bi&3)],
bname,ext,y);
if (bi >= 4)
opercnt = sprintf(dp->operands,"cr%d",bi>>2);
}
}
else {
/* CTR is decremented and checked */
sprintf(dp->opcode,"bd%s%s%s%c",b_decr[bo>>1],bname,ext,y);
if (!(bo & 16))
opercnt = sprintf(dp->operands,"0x%x",bi);
}
return (opercnt);
}
static void bc(struct DisasmPara_PPC *dp,ppc_word in)
{
int d = (int)(in & 0xfffc);
int offs;
char *oper = dp->operands;
if (d >= 0x8000)
d -= 0x10000;
if (offs = branch(dp,in,"",(in&2)?1:0,d)) {
oper += offs;
*oper++ = ',';
}
if (in & 2) /* AA ? */
sprintf(dp->operands,"0x%lx",(unsigned long)d);
else
sprintf(oper,"0x%lx",(unsigned long)((char *)dp->iaddr + d));
dp->type = PPCINSTR_BRANCH;
dp->displacement = (ppc_word)d;
}
static void bli(struct DisasmPara_PPC *dp,ppc_word in)
{
int d = (int)(in & 0x3fffffc);
if (d >= 0x2000000)
d -= 0x4000000;
sprintf(dp->opcode,"b%s",b_ext[in&3]);
if (in & 2) /* AA ? */
sprintf(dp->operands,"0x%lx",(unsigned long)d);
else
sprintf(dp->operands,"0x%lx",(unsigned long)((char *)dp->iaddr + d));
dp->type = PPCINSTR_BRANCH;
dp->displacement = (ppc_word)d;
}
static void mcrf(struct DisasmPara_PPC *dp,ppc_word in,char c)
{
if (!(in & 0x0063f801)) {
sprintf(dp->opcode,"mcrf%c",c);
sprintf(dp->operands,"cr%d,cr%d",(int)PPCGETCRD(in),(int)PPCGETCRA(in));
}
else
ill(dp,in);
}
static void crop(struct DisasmPara_PPC *dp,ppc_word in,char *n1,char *n2)
{
int crd = (int)PPCGETD(in);
int cra = (int)PPCGETA(in);
int crb = (int)PPCGETB(in);
if (!(in & 1)) {
sprintf(dp->opcode,"cr%s",(cra==crb && n2)?n2:n1);
if (cra == crb && n2)
sprintf(dp->operands,"%d,%d",crd,cra);
else
sprintf(dp->operands,"%d,%d,%d",crd,cra,crb);
}
else
ill(dp,in);
}
static void nooper(struct DisasmPara_PPC *dp,ppc_word in,char *name,
unsigned char dmode)
{
if (in & (PPCDMASK|PPCAMASK|PPCBMASK|1)) {
ill(dp,in);
}
else {
dp->flags |= dmode;
strcpy(dp->opcode,name);
}
}
static void rlw(struct DisasmPara_PPC *dp,ppc_word in,char *name,int i)
{
int s = (int)PPCGETD(in);
int a = (int)PPCGETA(in);
int bsh = (int)PPCGETB(in);
int mb = (int)PPCGETC(in);
int me = (int)PPCGETM(in);
sprintf(dp->opcode,"rlw%s%c",name,in&1?'.':'\0');
sprintf(dp->operands,"r%d,r%d,%s%d,%d,%d",a,s,regsel[i],bsh,mb,me);
}
static void ori(struct DisasmPara_PPC *dp,ppc_word in,char *name)
{
strcpy(dp->opcode,name);
imm(dp,in,1,1);
}
static void rld(struct DisasmPara_PPC *dp,ppc_word in,char *name,int i)
{
int s = (int)PPCGETD(in);
int a = (int)PPCGETA(in);
int bsh = i ? (int)PPCGETB(in) : (int)(((in&2)<<4)+PPCGETB(in));
int m = (int)(in&0x7e0)>>5;
dp->flags |= PPCF_64;
sprintf(dp->opcode,"rld%s%c",name,in&1?'.':'\0');
sprintf(dp->operands,"r%d,r%d,%s%d,%d",a,s,regsel[i],bsh,m);
}
static void cmp(struct DisasmPara_PPC *dp,ppc_word in)
{
char *oper = dp->operands;
int i = (int)PPCGETL(in);
if (i < 2) {
if (i)
dp->flags |= PPCF_64;
strcpy(dp->opcode,cmpname[((in&PPCIDX2MASK)?2:0)+i]);
if (i = (int)PPCGETCRD(in))
oper += sprintf(oper,"cr%c,",'0'+i);
ra_rb(oper,in);
}
else
ill(dp,in);
}
static void trap(struct DisasmPara_PPC *dp,ppc_word in,unsigned char dmode)
{
char *cnd;
int to = (int)PPCGETD(in);
if (cnd = trap_condition[to]) {
dp->flags |= dmode;
sprintf(dp->opcode,"t%c%s",dmode?'d':'w',cnd);
ra_rb(dp->operands,in);
}
else {
if (to == 31) {
if (dmode) {
dp->flags |= dmode;
strcpy(dp->opcode,"td");
strcpy(dp->operands,"31,0,0");
}
else
strcpy(dp->opcode,"trap");
}
else
ill(dp,in);
}
}
static void dab(struct DisasmPara_PPC *dp,ppc_word in,char *name,int mask,
int smode,int chkoe,int chkrc,unsigned char dmode)
/* standard instruction: xxxx rD,rA,rB */
{
if (chkrc>=0 && (in&1)!=chkrc) {
ill(dp,in);
}
else {
dp->flags |= dmode;
if (smode)
in = swapda(in); /* rA,rS,rB */
sprintf(dp->opcode,"%s%s%s",name,
oesel[chkoe&&(in&PPCOE)],rcsel[(chkrc<0)&&(in&1)]);
rd_ra_rb(dp->operands,in,mask);
}
}
static void rrn(struct DisasmPara_PPC *dp,ppc_word in,char *name,
int smode,int chkoe,int chkrc,unsigned char dmode)
/* Last operand is no register: xxxx rD,rA,NB */
{
char *s;
if (chkrc>=0 && (in&1)!=chkrc) {
ill(dp,in);
}
else {
dp->flags |= dmode;
if (smode)
in = swapda(in); /* rA,rS,NB */
sprintf(dp->opcode,"%s%s%s",name,
oesel[chkoe&&(in&PPCOE)],rcsel[(chkrc<0)&&(in&1)]);
s = rd_ra_rb(dp->operands,in,6);
sprintf(s,",%d",(int)PPCGETB(in));
}
}
static void mtcr(struct DisasmPara_PPC *dp,ppc_word in)
{
int s = (int)PPCGETD(in);
int crm = (int)(in&0x000ff000)>>12;
char *oper = dp->operands;
if (in & 0x00100801) {
ill(dp,in);
}
else {
sprintf(dp->opcode,"mtcr%c",crm==0xff?'\0':'f');
if (crm != 0xff)
oper += sprintf(oper,"0x%02x,",crm);
sprintf(oper,"r%d",s);
}
}
static void msr(struct DisasmPara_PPC *dp,ppc_word in,int smode)
{
int s = (int)PPCGETD(in);
int sr = (int)(in&0x000f0000)>>16;
if (in & 0x0010f801) {
ill(dp,in);
}
else {
dp->flags |= PPCF_SUPER;
sprintf(dp->opcode,"m%csr",smode?'t':'f');
if (smode)
sprintf(dp->operands,"0x%x,r%d",sr,s);
else
sprintf(dp->operands,"r%d,0x%x",s,sr);
}
}
static void mspr(struct DisasmPara_PPC *dp,ppc_word in,int smode)
{
int d = (int)PPCGETD(in);
int spr = (int)((PPCGETB(in)<<5)+PPCGETA(in));
int fmt = 0;
char *x;
if (in & 1) {
ill(dp,in);
}
else {
if (spr!=1 && spr!=8 && spr!=9)
dp->flags |= PPCF_SUPER;
switch (spr) {
case 1:
x = "xer";
break;
case 8:
x = "lr";
break;
case 9:
x = "ctr";
break;
case 18:
x = "dsisr";
break;
case 19:
x = "dar";
break;
case 22:
x = "dec";
break;
case 25:
x = "sdr1";
break;
case 26:
x = "srr0";
break;
case 27:
x = "srr1";
break;
case 272:
case 273:
case 274:
case 275:
x = "sprg";
spr -= 272;
fmt = 1;
break;
case 280:
x = "asr";
break;
case 282:
x = "ear";
break;
case 284:
x = "tbl";
break;
case 285:
x = "tbu";
break;
case 528:
case 530:
case 532:
case 534:
x = "ibatu";
spr = (spr-528)>>1;
fmt = 1;
break;
case 529:
case 531:
case 533:
case 535:
x = "ibatl";
spr = (spr-529)>>1;
fmt = 1;
break;
case 536:
case 538:
case 540:
case 542:
x = "dbatu";
spr = (spr-536)>>1;
fmt = 1;
break;
case 537:
case 539:
case 541:
case 543:
x = "dbatl";
spr = (spr-537)>>1;
fmt = 1;
break;
case 1013:
x = "dabr";
break;
default:
x = "spr";
fmt = 1;
break;
}
sprintf(dp->opcode,"m%c%s",smode?'t':'f',x);
if (fmt) {
if (smode)
sprintf(dp->operands,"0x%x,r%d",spr,d);
else
sprintf(dp->operands,"r%d,0x%x",d,spr);
}
else
sprintf(dp->operands,"r%d",d);
}
}
static void mtb(struct DisasmPara_PPC *dp,ppc_word in)
{
int d = (int)PPCGETD(in);
int tbr = (int)((PPCGETB(in)<<5)+PPCGETA(in));
char *s = dp->operands;
char x;
if (in & 1) {
ill(dp,in);
}
else {
s += sprintf(s,"r%d",d);
switch (tbr) {
case 268:
x = 'l';
break;
case 269:
x = 'u';
break;
default:
x = '\0';
dp->flags |= PPCF_SUPER;
sprintf(s,",0x%x",tbr);
break;
}
sprintf(dp->opcode,"mftb%c",x);
}
}
static void sradi(struct DisasmPara_PPC *dp,ppc_word in)
{
int s = (int)PPCGETD(in);
int a = (int)PPCGETA(in);
int bsh = (int)(((in&2)<<4)+PPCGETB(in));
dp->flags |= PPCF_64;
sprintf(dp->opcode,"sradi%c",in&1?'.':'\0');
sprintf(dp->operands,"r%d,r%d,%d",a,s,bsh);
}
static void ldst(struct DisasmPara_PPC *dp,ppc_word in,char *name,
char reg,unsigned char dmode)
{
int s = (int)PPCGETD(in);
int a = (int)PPCGETA(in);
unsigned int d = (ppc_word)(in & 0xffff);
dp->type = PPCINSTR_LDST;
dp->flags |= dmode;
dp->sreg = (short)a;
//if (d >= 0x8000)
// d -= 0x10000;
dp->displacement = (ppc_word)d;
strcpy(dp->opcode,name);
if( d > NEG_CUTTOFF )
{
sprintf(dp->operands,"%c%d,-0x%x(r%d)",reg,s, 0x10000u - d,a);
}
else
{
sprintf(dp->operands,"%c%d,0x%x(r%d)",reg,s,d,a);
}
}
static void fdabc(struct DisasmPara_PPC *dp,ppc_word in,char *name,
int mask,unsigned char dmode)
/* standard floating point instruction: xxxx fD,fA,fC,fB */
{
static const char *fmt = "f%d,";
char *s = dp->operands;
int err = 0;
dp->flags |= dmode;
sprintf(dp->opcode,"f%s%s",name,rcsel[in&1]);
s += sprintf(s,fmt,(int)PPCGETD(in));
if (mask & 4)
s += sprintf(s,fmt,(int)PPCGETA(in));
else
err |= (int)PPCGETA(in);
if (mask & 1)
s += sprintf(s,fmt,(int)PPCGETC(in));
else if (!(mask&8))
err |= (int)PPCGETC(in);
if (mask & 2)
s += sprintf(s,fmt,(int)PPCGETB(in));
else if (PPCGETB(in))
err |= (int)PPCGETB(in);
*(s-1) = '\0';
if (err)
ill(dp,in);
}
static void fdab(struct DisasmPara_PPC *dp,ppc_word in,char *name,int mask)
/* indexed float instruction: xxxx fD,rA,rB */
{
strcpy(dp->opcode,name);
fd_ra_rb(dp->operands,in,mask);
}
static void fcmp(struct DisasmPara_PPC *dp,ppc_word in,char c)
{
if (in & 0x00600001) {
ill(dp,in);
}
else {
sprintf(dp->opcode,"fcmp%c",c);
sprintf(dp->operands,"cr%d,f%d,f%d",(int)PPCGETCRD(in),
(int)PPCGETA(in),(int)PPCGETB(in));
}
}
static void mtfsb(struct DisasmPara_PPC *dp,ppc_word in,int n)
{
if (in & (PPCAMASK|PPCBMASK)) {
ill(dp,in);
}
else {
sprintf(dp->opcode,"mtfsb%d%s",n,rcsel[in&1]);
sprintf(dp->operands,"%d",(int)PPCGETD(in));
}
}
static void vdab(struct DisasmPara_PPC *dp,ppc_word in,char *name,
int mask,int chkrc)
/* standard AltiVec instruction: vxxx vD,vA,vB */
{
sprintf(dp->opcode,"%s%s",name,rcsel[chkrc&&(in&PPCVRC)]);
vd_va_vb(dp->operands,in,mask);
}
static void vdabc(struct DisasmPara_PPC *dp,ppc_word in)
/* four operands AltiVec instruction: vxxx vD,vA,vB,vC */
{
int nameidx = (in & 0x3f) - 32;
if (vmnames[nameidx]) {
sprintf(dp->opcode,"v%s",vmnames[nameidx]);
sprintf(vd_va_vb(dp->operands,in,7),
(nameidx==12) ? ",%d" : ",v%d", (int)PPCGETC(in));
}
else
ill(dp,in);
}
static void vldst(struct DisasmPara_PPC *dp,ppc_word in,char *name)
{
if (in & 1) {
ill(dp,in);
}
else {
dp->flags |= PPCF_ALTIVEC;
strcpy(dp->opcode,name);
sprintf(dp->operands,"v%d,r%d,r%d",(int)PPCGETD(in),
(int)PPCGETA(in),(int)PPCGETB(in));
}
}
static void dstrm(struct DisasmPara_PPC *dp,ppc_word in,char *name)
{
if (in & 0x01800001) {
ill(dp,in);
}
else {
char *s = dp->operands;;
if (PPCGETIDX2(in) == 822) { /* dss, dssall */
if (PPCGETA(in) || PPCGETB(in)) {
ill(dp,in);
return;
}
sprintf(dp->opcode,"d%s%s",name,(in&PPCDST) ? "all" : "");
}
else {
sprintf(dp->opcode,"d%s%c",name,(in&PPCDST) ? 't' : '\0');
s += sprintf(s,"r%d,r%d,",(int)PPCGETA(in),(int)PPCGETB(in));
}
sprintf(s,"%d",(int)PPCGETSTRM(in));
dp->flags |= PPCF_ALTIVEC;
}
}
#ifdef PPC_GEKKO
static void gps2(struct DisasmPara_PPC *dp,ppc_word in,char *name,short pcount)
{
int d=PPCGETD(in);
int c=PPCGETC(in);
int a=PPCGETA(in);
int b=PPCGETB(in);
sprintf(dp->opcode,"ps_%s",name);
if(pcount == 3)
sprintf(dp->operands,"f%d,f%d,f%d",d,a,c);
else
sprintf(dp->operands,"f%d,f%d,f%d,f%d",d,a,c,b);
}
static void gps(struct DisasmPara_PPC *dp,ppc_word in,char *name,short pcount,short dlength)
{
int d;
if(dlength==5)
d=PPCGETD(in);
else
d=PPCGETCRD(in);
int a=PPCGETA(in);
int b=PPCGETB(in);
sprintf(dp->opcode,"ps_%s",name);
if(pcount == 2)
sprintf(dp->operands,"f%d,f%d",d,b);
else
sprintf(dp->operands,"f%d,f%d,f%d",d,a,b);
}
static void psqx(struct DisasmPara_PPC *dp,ppc_word in,char *name)
{
int a=PPCGETA(in);
int b=PPCGETB(in);
int d=PPCGETD(in);
int w=GEKKOGETW(in);
int i=GEKKOGETI(in);
sprintf(dp->opcode,"psq_%sx",name);
sprintf(dp->operands,"f%d,r%d,r%d,%d,%d",d,a,b,w,i);
}
static void psq(struct DisasmPara_PPC *dp,ppc_word in,char *name)
{
int a=PPCGETA(in);
int d=PPCGETD(in);
int w=GEKKOGETW2(in);
int i=GEKKOGETI2(in);
int v=GEKKOGETV(in);
sprintf(dp->opcode,"psq_%s",name);
sprintf(dp->operands,"f%d,%d(r%d),%d,%d",d,v,a,w,i);
}
#endif
ppc_word *PPC_Disassemble(struct DisasmPara_PPC *dp)
/* Disassemble PPC instruction and return a pointer to the next */
/* instruction, or NULL if an error occured. */
{
ppc_word in = *(dp->instr);
if (dp->opcode==NULL || dp->operands==NULL)
return (NULL); /* no buffers */
#ifdef LITTLEENDIAN
in = (in & 0xff)<<24 | (in & 0xff00)<<8 | (in & 0xff0000)>>8 |
(in & 0xff000000)>>24;
#endif
dp->type = PPCINSTR_OTHER;
dp->flags = 0;
*(dp->operands) = 0;
switch (PPCGETIDX(in)) {
case 2:
trapi(dp,in,PPCF_64); /* tdi */
break;
case 3:
trapi(dp,in,0); /* twi */
break;
case 4:
dp->flags |= PPCF_ALTIVEC;
#ifndef PPC_GEKKO
if ((in & 0x30) == 0x20) {
/* vxxx vA,vB,vC,vD - four operands instructions */
vdabc(dp,in);
break;
}
#endif
if (in & 1) {
ill(dp,in);
break;
}
switch (PPCGETIDX2(in)<<1) {
#ifdef PPC_GEKKO
case 42:
gps(dp,in,"add",3,5);
break;
case 36:
gps(dp,in,"div",3,5);
break;
case 40:
gps(dp,in,"sub",3,5);
break;
case 1056:
gps(dp,in,"merge00",3,5);
break;
case 1120:
gps(dp,in,"merge01",3,5);
break;
case 1184:
gps(dp,in,"merge10",3,5);
break;
case 1248:
gps(dp,in,"merge11",3,5);
break;
case 144:
gps(dp,in,"mr",2,5);
break;
case 272:
gps(dp,in,"nabs",2,5);
break;
case 80:
gps(dp,in,"neg",2,5);
break;
case 26:
gps(dp,in,"res",2,5);
break;
case 52:
gps(dp,in,"rsqrte",2,5);
break;
case 0:
gps(dp,in,"cmpu0",3,3);
break;
case 64:
gps(dp,in,"cmpo0",3,3);
break;
case 128:
gps(dp,in,"cmpu1",3,3);
break;
case 192:
gps(dp,in,"cmpo1",3,3);
break;
case 528:
gps(dp,in,"abs",2,5);
break;
#endif
#ifndef PPC_GEKKO
case 0:
vdab(dp,in,"vaddubm",7,0);
break;
#endif
case 2:
vdab(dp,in,"vmaxub",7,0);
break;
case 4:
vdab(dp,in,"vrlb",7,0);
break;
case 6:
case 6+PPCVRC:
vdab(dp,in,"vcmpequb",7,1);
break;
case 8:
vdab(dp,in,"vmuloub",7,0);
break;
case 10:
vdab(dp,in,"vaddfp",7,0);
break;
case 12:
vdab(dp,in,"vmrghb",7,0);
break;
case 14:
vdab(dp,in,"vpkuhum",7,0);
break;
#ifndef PPC_GEKKO
case 64:
vdab(dp,in,"vadduhm",7,0);
break;
#endif
case 66:
vdab(dp,in,"vmaxuh",7,0);
break;
case 68:
vdab(dp,in,"vrlh",7,0);
break;
case 70:
case 70+PPCVRC:
vdab(dp,in,"vcmpequh",7,1);
break;
case 72:
vdab(dp,in,"vmulouh",7,0);
break;
case 74:
vdab(dp,in,"vsubfp",7,0);
break;
case 76:
vdab(dp,in,"vmrghh",7,0);
break;
case 78:
vdab(dp,in,"vpkuwum",7,0);
break;
#ifndef PPC_GEKKO
case 128:
vdab(dp,in,"vadduwm",7,0);
break;
#endif
case 130:
vdab(dp,in,"vmaxuw",7,0);
break;
case 132:
vdab(dp,in,"vrlw",7,0);
break;
case 134:
case 134+PPCVRC:
vdab(dp,in,"vcmpequw",7,1);
break;
case 140:
vdab(dp,in,"vmrghw",7,0);
break;
case 142:
vdab(dp,in,"vpkuhus",7,0);
break;
case 198:
case 198+PPCVRC:
vdab(dp,in,"vcmpeqfp",7,1);
break;
case 206:
vdab(dp,in,"vpkuwus",7,0);
break;
case 258:
vdab(dp,in,"vmaxsb",7,0);
break;
case 260:
vdab(dp,in,"vslb",7,0);
break;
case 264:
vdab(dp,in,"vmulosb",7,0);
break;
case 266:
vdab(dp,in,"vrefp",5,0);
break;
case 268:
vdab(dp,in,"vmrglb",7,0);
break;
case 270:
vdab(dp,in,"vpkshus",7,0);
break;
case 322:
vdab(dp,in,"vmaxsh",7,0);
break;
case 324:
vdab(dp,in,"vslh",7,0);
break;
case 328:
vdab(dp,in,"vmulosh",7,0);
break;
case 330:
vdab(dp,in,"vrsqrtefp",5,0);
break;
case 332:
vdab(dp,in,"vmrglh",7,0);
break;
case 334:
vdab(dp,in,"vpkswus",7,0);
break;
case 384:
vdab(dp,in,"vaddcuw",7,0);
break;
case 386:
vdab(dp,in,"vmaxsw",7,0);
break;
case 388:
vdab(dp,in,"vslw",7,0);
break;
case 394:
vdab(dp,in,"vexptefp",5,0);
break;
case 396:
vdab(dp,in,"vmrglw",7,0);
break;
case 398:
vdab(dp,in,"vpkshss",7,0);
break;
case 452:
vdab(dp,in,"vsl",7,0);
break;
case 454:
case 454+PPCVRC:
vdab(dp,in,"vcmpgefp",7,1);
break;
case 458:
vdab(dp,in,"vlogefp",5,0);
break;
case 462:
vdab(dp,in,"vpkswss",7,0);
break;
case 512:
vdab(dp,in,"vaddubs",7,0);
break;
case 514:
vdab(dp,in,"vminub",7,0);
break;
case 516:
vdab(dp,in,"vsrb",7,0);
break;
case 518:
case 518+PPCVRC:
vdab(dp,in,"vcmpgtub",7,1);
break;
case 520:
vdab(dp,in,"vmuleub",7,0);
break;
case 522:
vdab(dp,in,"vrfin",5,0);
break;
case 524:
vdab(dp,in,"vspltb",15,0);
break;
case 526:
vdab(dp,in,"vupkhsb",5,0);
break;
case 576:
vdab(dp,in,"vadduhs",7,0);
break;
case 578:
vdab(dp,in,"vminuh",7,0);
break;
case 580:
vdab(dp,in,"vsrh",7,0);
break;
case 582:
case 582+PPCVRC:
vdab(dp,in,"vcmpgtuh",7,1);
break;
case 584:
vdab(dp,in,"vmuleuh",7,0);
break;
case 586:
vdab(dp,in,"vrfiz",5,0);
break;
case 588:
vdab(dp,in,"vsplth",15,0);
break;
case 590:
vdab(dp,in,"vupkhsh",5,0);
break;
case 640:
vdab(dp,in,"vadduws",7,0);
break;
case 642:
vdab(dp,in,"vminuw",7,0);
break;
case 644:
vdab(dp,in,"vsrw",7,0);
break;
case 646:
case 646+PPCVRC:
vdab(dp,in,"vcmpgtuw",7,1);
break;
case 650:
vdab(dp,in,"vrfip",5,0);
break;
case 652:
vdab(dp,in,"vspltw",15,0);
break;
case 654:
vdab(dp,in,"vupklsb",5,0);
break;
case 708:
vdab(dp,in,"vsr",7,0);
break;
case 710:
case 710+PPCVRC:
vdab(dp,in,"vcmpgtfp",7,1);
break;
case 714:
vdab(dp,in,"vrfim",5,0);
break;
case 718:
vdab(dp,in,"vupklsh",5,0);
break;
case 768:
vdab(dp,in,"vaddsbs",7,0);
break;
case 770:
vdab(dp,in,"vminsb",7,0);
break;
case 772:
vdab(dp,in,"vsrab",7,0);
break;
case 774:
case 774+PPCVRC:
vdab(dp,in,"vcmpgtsb",7,1);
break;
case 776:
vdab(dp,in,"vmulesb",7,0);
break;
case 778:
vdab(dp,in,"vcfux",15,0);
break;
case 780:
vdab(dp,in,"vspltisb",22,0);
break;
case 782:
vdab(dp,in,"vpkpx",7,0);
break;
case 832:
vdab(dp,in,"vaddshs",7,0);
break;
case 834:
vdab(dp,in,"vminsh",7,0);
break;
case 836:
vdab(dp,in,"vsrah",7,0);
break;
case 838:
case 838+PPCVRC:
vdab(dp,in,"vcmpgtsh",7,1);
break;
case 840:
vdab(dp,in,"vmulesh",7,0);
break;
case 842:
vdab(dp,in,"vcfsx",15,0);
break;
case 844:
vdab(dp,in,"vspltish",22,0);
break;
case 846:
vdab(dp,in,"vupkhpx",5,0);
break;
case 896:
vdab(dp,in,"vaddsws",7,0);
break;
case 898:
vdab(dp,in,"vminsw",7,0);
break;
case 900:
vdab(dp,in,"vsraw",7,0);
break;
case 902:
case 902+PPCVRC:
vdab(dp,in,"vcmpgtsw",7,1);
break;
case 906:
vdab(dp,in,"vctuxs",15,0);
break;
case 908:
vdab(dp,in,"vspltisw",22,0);
break;
case 966:
case 966+PPCVRC:
vdab(dp,in,"vcmpbfp",7,1);
break;
case 970:
vdab(dp,in,"vctsxs",15,0);
break;
case 974:
vdab(dp,in,"vupklpx",5,0);
break;
case 1024:
vdab(dp,in,"vsububm",7,0);
break;
case 1026:
vdab(dp,in,"vavgub",7,0);
break;
case 1028:
vdab(dp,in,"vand",7,0);
break;
case 1034:
vdab(dp,in,"vmaxfp",7,0);
break;
case 1036:
vdab(dp,in,"vslo",7,0);
break;
case 1088:
vdab(dp,in,"vsubuhm",7,0);
break;
case 1090:
vdab(dp,in,"vavguh",7,0);
break;
case 1092:
vdab(dp,in,"vandc",7,0);
break;
case 1098:
vdab(dp,in,"vminfp",7,0);
break;
case 1100:
vdab(dp,in,"vsro",7,0);
break;
case 1152:
vdab(dp,in,"vsubuwm",7,0);
break;
case 1154:
vdab(dp,in,"vavguw",7,0);
break;
case 1156:
vdab(dp,in,"vor",7,0);
break;
case 1220:
vdab(dp,in,"vxor",7,0);
break;
case 1282:
vdab(dp,in,"vavgsb",7,0);
break;
case 1284:
vdab(dp,in,"vnor",7,0);
break;
case 1346:
vdab(dp,in,"vavgsh",7,0);
break;
case 1408:
vdab(dp,in,"vsubcuw",7,0);
break;
case 1410:
vdab(dp,in,"vavgsw",7,0);
break;
case 1536:
vdab(dp,in,"vsububs",7,0);
break;
case 1540:
vdab(dp,in,"mfvscr",4,0);
break;
case 1544:
vdab(dp,in,"vsum4ubs",7,0);
break;
case 1600:
vdab(dp,in,"vsubuhs",7,0);
break;
case 1604:
vdab(dp,in,"mtvscr",1,0);
break;
case 1608:
vdab(dp,in,"vsum4shs",7,0);
break;
case 1664:
vdab(dp,in,"vsubuws",7,0);
break;
case 1672:
vdab(dp,in,"vsum2sws",7,0);
break;
case 1792:
vdab(dp,in,"vsubsbs",7,0);
break;
case 1800:
vdab(dp,in,"vsum4sbs",7,0);
break;
case 1856:
vdab(dp,in,"vsubshs",7,0);
break;
case 1920:
vdab(dp,in,"vsubsws",7,0);
break;
case 1928:
vdab(dp,in,"vsumsws",7,0);
break;
#ifndef PPC_GEKKO
default:
ill(dp,in);
break;
#endif
#ifdef PPC_GEKKO
default:
switch(PPCGETM(in))
{
case 10:
gps2(dp,in,"sum0",4);
break;
case 11:
gps2(dp,in,"sum1",4);
break;
case 12:
gps2(dp,in,"muls0",3);
break;
case 13:
gps2(dp,in,"muls1",3);
break;
case 14:
gps2(dp,in,"madds0",4);
break;
case 15:
gps2(dp,in,"madds1",4);
break;
case 23:
gps2(dp,in,"sel",4);
break;
case 25:
gps2(dp,in,"mul",3);
break;
case 28:
gps2(dp,in,"msub",4);
break;
case 29:
gps2(dp,in,"madd",4);
break;
case 30:
gps2(dp,in,"nmadd",4);
break;
case 31:
gps2(dp,in,"nmsub",4);
break;
case 6:
case 7:
switch(GEKKOGETLASID(in)) {
case 6:
psqx(dp,in,"l");
break;
case 7:
psqx(dp,in,"st");
break;
case 38:
psqx(dp,in,"lu");
break;
case 39:
psqx(dp,in,"stu");
break;
default:
ill(dp,in);
break;
}
break;
default:
ill(dp,in);
break;
}
break;
#endif
}
break;
case 7:
strcpy(dp->opcode,"mulli");
imm(dp,in,0,0);
break;
case 8:
strcpy(dp->opcode,"subfic");
imm(dp,in,0,0);
break;
case 10:
cmpi(dp,in,1); /* cmpli */
break;
case 11:
cmpi(dp,in,0); /* cmpi */
break;
case 12:
addi(dp,in,"ic"); /* addic */
break;
case 13:
addi(dp,in,"ic."); /* addic. */
break;
case 14:
addi(dp,in,"i"); /* addi */
break;
case 15:
addi(dp,in,"is"); /* addis */
break;
case 16:
bc(dp,in);
break;
case 17:
if ((in & ~PPCIDXMASK) == 2)
strcpy(dp->opcode,"sc");
else
ill(dp,in);
break;
case 18:
bli(dp,in);
break;
case 19:
switch (PPCGETIDX2(in)) {
case 0:
mcrf(dp,in,'\0'); /* mcrf */
break;
case 16:
branch(dp,in,"lr",0,0); /* bclr */
break;
case 33:
crop(dp,in,"nor","not"); /* crnor */
break;
case 50:
nooper(dp,in,"rfi",PPCF_SUPER);
break;
case 129:
crop(dp,in,"andc",NULL); /* crandc */
break;
case 150:
nooper(dp,in,"isync",0);
break;
case 193:
crop(dp,in,"xor","clr"); /* crxor */
break;
case 225:
crop(dp,in,"nand",NULL); /* crnand */
break;
case 257:
crop(dp,in,"and",NULL); /* crand */
break;
case 289:
crop(dp,in,"eqv","set"); /* creqv */
break;
case 417:
crop(dp,in,"orc",NULL); /* crorc */
break;
case 449:
crop(dp,in,"or","move"); /* cror */
break;
case 528:
branch(dp,in,"ctr",0,0); /* bcctr */
break;
default:
ill(dp,in);
break;
}
break;
case 20:
rlw(dp,in,"imi",0); /* rlwimi */
break;
case 21:
rlw(dp,in,"inm",0); /* rlwinm */
break;
case 23:
rlw(dp,in,"nm",1); /* rlwnm */
break;
case 24:
if (in & ~PPCIDXMASK)
ori(dp,in,"ori");
else
strcpy(dp->opcode,"nop");
break;
case 25:
ori(dp,in,"oris");
break;
case 26:
ori(dp,in,"xori");
break;
case 27:
ori(dp,in,"xoris");
break;
case 28:
ori(dp,in,"andi.");
break;
case 29:
ori(dp,in,"andis.");
break;
case 30:
switch (in & 0x1c) {
case 0:
rld(dp,in,"icl",0); /* rldicl */
break;
case 1:
rld(dp,in,"icr",0); /* rldicr */
break;
case 2:
rld(dp,in,"ic",0); /* rldic */
break;
case 3:
rld(dp,in,"imi",0); /* rldimi */
break;
case 4:
rld(dp,in,in&2?"cl":"cr",1); /* rldcl, rldcr */
break;
default:
ill(dp,in);
break;
}
break;
case 31:
switch (PPCGETIDX2(in)) {
case 0:
case 32:
if (in & 1)
ill(dp,in);
else
cmp(dp,in); /* cmp, cmpl */
break;
case 4:
if (in & 1)
ill(dp,in);
else
trap(dp,in,0); /* tw */
break;
case 6:
vldst(dp,in,"lvsl"); /* AltiVec */
break;
case 7:
vldst(dp,in,"lvebx"); /* AltiVec */
break;
case 8:
case (PPCOE>>1)+8:
dab(dp,swapab(in),"subc",7,0,1,-1,0);
break;
case 9:
dab(dp,in,"mulhdu",7,0,0,-1,PPCF_64);
break;
case 10:
case (PPCOE>>1)+10:
dab(dp,in,"addc",7,0,1,-1,0);
break;
case 11:
dab(dp,in,"mulhwu",7,0,0,-1,0);
break;
case 19:
if (in & (PPCAMASK|PPCBMASK))
ill(dp,in);
else
dab(dp,in,"mfcr",4,0,0,0,0);
break;
case 20:
dab(dp,in,"lwarx",7,0,0,0,0);
break;
case 21:
dab(dp,in,"ldx",7,0,0,0,PPCF_64);
break;
case 23:
dab(dp,in,"lwzx",7,0,0,0,0);
break;
case 24:
dab(dp,in,"slw",7,1,0,-1,0);
break;
case 26:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"cntlzw",6,1,0,-1,0);
break;
case 27:
dab(dp,in,"sld",7,1,0,-1,PPCF_64);
break;
case 28:
dab(dp,in,"and",7,1,0,-1,0);
break;
case 38:
vldst(dp,in,"lvsr"); /* AltiVec */
break;
case 39:
vldst(dp,in,"lvehx"); /* AltiVec */
break;
case 40:
case (PPCOE>>1)+40:
dab(dp,swapab(in),"sub",7,0,1,-1,0);
break;
case 53:
dab(dp,in,"ldux",7,0,0,0,PPCF_64);
break;
case 54:
if (in & PPCDMASK)
ill(dp,in);
else
dab(dp,in,"dcbst",3,0,0,0,0);
break;
case 55:
dab(dp,in,"lwzux",7,0,0,0,0);
break;
case 58:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"cntlzd",6,1,0,-1,PPCF_64);
break;
case 60:
dab(dp,in,"andc",7,1,0,-1,0);
break;
case 68:
trap(dp,in,PPCF_64); /* td */
break;
case 71:
vldst(dp,in,"lvewx"); /* AltiVec */
break;
case 73:
dab(dp,in,"mulhd",7,0,0,-1,PPCF_64);
break;
case 75:
dab(dp,in,"mulhw",7,0,0,-1,0);
break;
case 83:
if (in & (PPCAMASK|PPCBMASK))
ill(dp,in);
else
dab(dp,in,"mfmsr",4,0,0,0,PPCF_SUPER);
break;
case 84:
dab(dp,in,"ldarx",7,0,0,0,PPCF_64);
break;
case 86:
if (in & PPCDMASK)
ill(dp,in);
else
dab(dp,in,"dcbf",3,0,0,0,0);
break;
case 87:
dab(dp,in,"lbzx",7,0,0,0,0);
break;
case 103:
vldst(dp,in,"lvx"); /* AltiVec */
break;
case 104:
case (PPCOE>>1)+104:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"neg",6,0,1,-1,0);
break;
case 119:
dab(dp,in,"lbzux",7,0,0,0,0);
break;
case 124:
if (PPCGETD(in) == PPCGETB(in))
dab(dp,in,"not",6,1,0,-1,0);
else
dab(dp,in,"nor",7,1,0,-1,0);
break;
case 135:
vldst(dp,in,"stvebx"); /* AltiVec */
break;
case 136:
case (PPCOE>>1)+136:
dab(dp,in,"subfe",7,0,1,-1,0);
break;
case 138:
case (PPCOE>>1)+138:
dab(dp,in,"adde",7,0,1,-1,0);
break;
case 144:
mtcr(dp,in);
break;
case 146:
if (in & (PPCAMASK|PPCBMASK))
ill(dp,in);
else
dab(dp,in,"mtmsr",4,0,0,0,PPCF_SUPER);
break;
case 149:
dab(dp,in,"stdx",7,0,0,0,PPCF_64);
break;
case 150:
dab(dp,in,"stwcx.",7,0,0,1,0);
break;
case 151:
dab(dp,in,"stwx",7,0,0,0,0);
break;
case 167:
vldst(dp,in,"stvehx"); /* AltiVec */
break;
case 181:
dab(dp,in,"stdux",7,0,0,0,PPCF_64);
break;
case 183:
dab(dp,in,"stwux",7,0,0,0,0);
break;
case 199:
vldst(dp,in,"stvewx"); /* AltiVec */
break;
case 200:
case (PPCOE>>1)+200:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"subfze",6,0,1,-1,0);
break;
case 202:
case (PPCOE>>1)+202:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"addze",6,0,1,-1,0);
break;
case 210:
msr(dp,in,1); /* mfsr */
break;
case 214:
dab(dp,in,"stdcx.",7,0,0,1,PPCF_64);
break;
case 215:
dab(dp,in,"stbx",7,0,0,0,0);
break;
case 231:
vldst(dp,in,"stvx"); /* AltiVec */
break;
case 232:
case (PPCOE>>1)+232:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"subfme",6,0,1,-1,0);
break;
case 233:
case (PPCOE>>1)+233:
dab(dp,in,"mulld",7,0,1,-1,PPCF_64);
break;
case 234:
case (PPCOE>>1)+234:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"addme",6,0,1,-1,0);
break;
case 235:
case (PPCOE>>1)+235:
dab(dp,in,"mullw",7,0,1,-1,0);
break;
case 242:
if (in & PPCAMASK)
ill(dp,in);
else
dab(dp,in,"mtsrin",5,0,0,0,PPCF_SUPER);
break;
case 246:
if (in & PPCDMASK)
ill(dp,in);
else
dab(dp,in,"dcbtst",3,0,0,0,0);
break;
case 247:
dab(dp,in,"stbux",7,0,0,0,0);
break;
case 266:
case (PPCOE>>1)+266:
dab(dp,in,"add",7,0,1,-1,0);
break;
case 278:
if (in & PPCDMASK)
ill(dp,in);
else
dab(dp,in,"dcbt",3,0,0,0,0);
break;
case 279:
dab(dp,in,"lhzx",7,0,0,0,0);
break;
case 284:
dab(dp,in,"eqv",7,1,0,-1,0);
break;
case 306:
if (in & (PPCDMASK|PPCAMASK))
ill(dp,in);
else
dab(dp,in,"tlbie",1,0,0,0,PPCF_SUPER);
break;
case 310:
dab(dp,in,"eciwx",7,0,0,0,0);
break;
case 311:
dab(dp,in,"lhzux",7,0,0,0,0);
break;
case 316:
dab(dp,in,"xor",7,1,0,-1,0);
break;
case 339:
mspr(dp,in,0); /* mfspr */
break;
case 341:
dab(dp,in,"lwax",7,0,0,0,PPCF_64);
break;
case 342:
dstrm(dp,in,"st"); /* AltiVec Stream */
break;
case 343:
dab(dp,in,"lhax",7,0,0,0,0);
break;
case 359:
vldst(dp,in,"lvxl"); /* AltiVec */
break;
case 370:
nooper(dp,in,"tlbia",PPCF_SUPER);
break;
case 371:
mtb(dp,in); /* mftb */
break;
case 373:
dab(dp,in,"lwaux",7,0,0,0,PPCF_64);
break;
case 374:
dstrm(dp,in,"stst"); /* AltiVec Stream */
break;
case 375:
dab(dp,in,"lhaux",7,0,0,0,0);
break;
case 407:
dab(dp,in,"sthx",7,0,0,0,0);
break;
case 412:
dab(dp,in,"orc",7,1,0,-1,0);
break;
case 413:
sradi(dp,in); /* sradi */
break;
case 434:
if (in & (PPCDMASK|PPCAMASK))
ill(dp,in);
else
dab(dp,in,"slbie",1,0,0,0,PPCF_SUPER|PPCF_64);
break;
case 438:
dab(dp,in,"ecowx",7,0,0,0,0);
break;
case 439:
dab(dp,in,"sthux",7,0,0,0,0);
break;
case 444:
if (PPCGETD(in) == PPCGETB(in))
dab(dp,in,"mr",6,1,0,-1,0);
else
dab(dp,in,"or",7,1,0,-1,0);
break;
case 457:
case (PPCOE>>1)+457:
dab(dp,in,"divdu",7,0,1,-1,PPCF_64);
break;
case 459:
case (PPCOE>>1)+459:
dab(dp,in,"divwu",7,0,1,-1,0);
break;
case 467:
mspr(dp,in,1); /* mtspr */
break;
case 470:
if (in & PPCDMASK)
ill(dp,in);
else
dab(dp,in,"dcbi",3,0,0,0,0);
break;
case 476:
dab(dp,in,"nand",7,1,0,-1,0);
break;
case 487:
vldst(dp,in,"stvxl"); /* AltiVec */
break;
case 489:
case (PPCOE>>1)+489:
dab(dp,in,"divd",7,0,1,-1,PPCF_64);
break;
case 491:
case (PPCOE>>1)+491:
dab(dp,in,"divw",7,0,1,-1,0);
break;
case 498:
nooper(dp,in,"slbia",PPCF_SUPER|PPCF_64);
break;
case 512:
if (in & 0x007ff801)
ill(dp,in);
else {
strcpy(dp->opcode,"mcrxr");
sprintf(dp->operands,"cr%d",(int)PPCGETCRD(in));
}
break;
case 533:
dab(dp,in,"lswx",7,0,0,0,0);
break;
case 534:
dab(dp,in,"lwbrx",7,0,0,0,0);
break;
case 535:
fdab(dp,in,"lfsx",7);
break;
case 536:
dab(dp,in,"srw",7,1,0,-1,0);
break;
case 539:
dab(dp,in,"srd",7,1,0,-1,PPCF_64);
break;
case 566:
nooper(dp,in,"tlbsync",PPCF_SUPER);
break;
case 567:
fdab(dp,in,"lfsux",7);
break;
case 595:
msr(dp,in,0); /* mfsr */
break;
case 597:
rrn(dp,in,"lswi",0,0,0,0);
break;
case 598:
nooper(dp,in,"sync",PPCF_SUPER);
break;
case 599:
fdab(dp,in,"lfdx",7);
break;
case 631:
fdab(dp,in,"lfdux",7);
break;
case 659:
if (in & PPCAMASK)
ill(dp,in);
else
dab(dp,in,"mfsrin",5,0,0,0,PPCF_SUPER);
break;
case 661:
dab(dp,in,"stswx",7,0,0,0,0);
break;
case 662:
dab(dp,in,"stwbrx",7,0,0,0,0);
break;
case 663:
fdab(dp,in,"stfsx",7);
break;
case 695:
fdab(dp,in,"stfsux",7);
break;
case 725:
rrn(dp,in,"stswi",0,0,0,0);
break;
case 727:
fdab(dp,in,"stfdx",7);
break;
case 759:
fdab(dp,in,"stfdux",7);
break;
case 790:
dab(dp,in,"lhbrx",7,0,0,0,0);
break;
case 792:
dab(dp,in,"sraw",7,1,0,-1,0);
break;
case 794:
dab(dp,in,"srad",7,1,0,-1,PPCF_64);
break;
case 822:
dstrm(dp,in,"ss"); /* AltiVec Stream */
break;
case 824:
rrn(dp,in,"srawi",1,0,-1,0);
break;
case 854:
nooper(dp,in,"eieio",PPCF_SUPER);
break;
case 918:
dab(dp,in,"sthbrx",7,0,0,0,0);
break;
case 922:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"extsh",6,1,0,-1,0);
break;
case 954:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"extsb",6,1,0,-1,0);
break;
case 982:
if (in & PPCDMASK)
ill(dp,in);
else
dab(dp,in,"icbi",3,0,0,0,0);
break;
case 983:
fdab(dp,in,"stfiwx",7);
break;
case 986:
if (in & PPCBMASK)
ill(dp,in);
else
dab(dp,in,"extsw",6,1,0,-1,PPCF_64);
break;
case 1014:
if (in & PPCDMASK)
ill(dp,in);
else
dab(dp,in,"dcbz",3,0,0,0,0);
break;
default:
ill(dp,in);
break;
}
break;
case 32:
case 33:
case 34:
case 35:
case 36:
case 37:
case 38:
case 39:
case 40:
case 41:
case 42:
case 43:
case 44:
case 45:
case 46:
case 47:
ldst(dp,in,ldstnames[PPCGETIDX(in)-32],'r',0);
break;
case 48:
case 49:
case 50:
case 51:
case 52:
case 53:
case 54:
case 55:
ldst(dp,in,ldstnames[PPCGETIDX(in)-32],'f',0);
break;
#ifdef PPC_GEKKO
case 56:
psq(dp,in,"l");
break;
case 57:
psq(dp,in,"lu");
break;
#endif
case 58:
switch (in & 3) {
case 0:
ldst(dp,in&~3,"ld",'r',PPCF_64);
break;
case 1:
ldst(dp,in&~3,"ldu",'r',PPCF_64);
break;
case 2:
ldst(dp,in&~3,"lwa",'r',PPCF_64);
break;
default:
ill(dp,in);
break;
}
break;
case 59:
switch (in & 0x3e) {
case 36:
fdabc(dp,in,"divs",6,0);
break;
case 40:
fdabc(dp,in,"subs",6,0);
break;
case 42:
fdabc(dp,in,"adds",6,0);
break;
case 44:
fdabc(dp,in,"sqrts",2,0);
break;
case 48:
fdabc(dp,in,"res",2,0);
break;
case 50:
fdabc(dp,in,"muls",5,0);
break;
case 56:
fdabc(dp,in,"msubs",7,0);
break;
case 58:
fdabc(dp,in,"madds",7,0);
break;
case 60:
fdabc(dp,in,"nmsubs",7,0);
break;
case 62:
fdabc(dp,in,"nmadds",7,0);
break;
default:
ill(dp,in);
break;
}
break;
#ifdef PPC_GEKKO
case 60:
psq(dp,in,"st");
break;
case 61:
psq(dp,in,"stu");
break;
#endif
case 62:
switch (in & 3) {
case 0:
ldst(dp,in&~3,"std",'r',PPCF_64);
break;
case 1:
ldst(dp,in&~3,"stdu",'r',PPCF_64);
break;
default:
ill(dp,in);
break;
}
break;
case 63:
if (in & 32) {
switch (in & 0x1e) {
case 4:
fdabc(dp,in,"div",6,0);
break;
case 8:
fdabc(dp,in,"sub",6,0);
break;
case 10:
fdabc(dp,in,"add",6,0);
break;
case 12:
fdabc(dp,in,"sqrt",2,0);
break;
case 14:
fdabc(dp,in,"sel",7,0);
break;
case 18:
fdabc(dp,in,"mul",5,0);
break;
case 20:
fdabc(dp,in,"sqrte",2,0);
break;
case 24:
fdabc(dp,in,"msub",7,0);
break;
case 26:
fdabc(dp,in,"madd",7,0);
break;
case 28:
fdabc(dp,in,"nmsub",7,0);
break;
case 30:
fdabc(dp,in,"nmadd",7,0);
break;
default:
ill(dp,in);
break;
}
}
else {
switch (PPCGETIDX2(in)) {
case 0:
fcmp(dp,in,'u');
break;
case 12:
fdabc(dp,in,"rsp",10,0);
break;
case 14:
fdabc(dp,in,"ctiw",10,0);
break;
case 15:
fdabc(dp,in,"ctiwz",10,0);
break;
case 32:
fcmp(dp,in,'o');
break;
case 38:
mtfsb(dp,in,1);
break;
case 40:
fdabc(dp,in,"neg",10,0);
break;
case 64:
mcrf(dp,in,'s'); /* mcrfs */
break;
case 70:
mtfsb(dp,in,0);
break;
case 72:
fdabc(dp,in,"mr",10,0);
break;
case 134:
if (!(in & 0x006f0800)) {
sprintf(dp->opcode,"mtfsfi%s",rcsel[in&1]);
sprintf(dp->operands,"%d,0x%x",(int)PPCGETCRD(in),
(int)(in & 0xf000)>>12);
}
else
ill(dp,in);
break;
case 136:
fdabc(dp,in,"nabs",10,0);
break;
case 264:
fdabc(dp,in,"abs",10,0);
break;
case 583:
if (!(in & (PPCAMASK|PPCBMASK))) {
sprintf(dp->opcode,"mffs%s",rcsel[in&1]);
sprintf(dp->operands,"f%d",(int)PPCGETD(in));
}
else
ill(dp,in);
break;
case 711:
if (!(in & 0x02010000)) {
sprintf(dp->opcode,"mtfsf%s",rcsel[in&1]);
sprintf(dp->operands,"0x%x,f%d",
(int)(in & 0x01fe0000)>>17,(int)PPCGETB(in));
}
else
ill(dp,in);
break;
case 814:
fdabc(dp,in,"fctid",10,PPCF_64);
break;
case 815:
fdabc(dp,in,"fctidz",10,PPCF_64);
break;
case 846:
fdabc(dp,in,"fcfid",10,PPCF_64);
break;
default:
ill(dp,in);
break;
}
}
break;
default:
ill(dp,in);
break;
}
return (dp->instr + 1);
}
Reference in New Issue Copy Permalink