/* the order is dest, a/s, b/imm for both arithmetic and logical operations */

#include "l.h"

#define OPVCC(o,xo,oe,rc) (((o)<<26)|((xo)<<1)|((oe)<<10)|((rc)&1))
#define OPCC(o,xo,rc) OPVCC((o),(xo),0,(rc))
#define OP(o,xo) OPVCC((o),(xo),0,0)

/* the order is dest, a/s, b/imm for both arithmetic and logical operations */
#define AOP_RRR(op,d,a,b) ((op)|(((d)&31L)<<21)|(((a)&31L)<<16)|(((b)&31L)<<11))
#define AOP_IRR(op,d,a,simm) ((op)|(((d)&31L)<<21)|(((a)&31L)<<16)|((simm)&0xFFFF))
#define LOP_RRR(op,a,s,b) ((op)|(((s)&31L)<<21)|(((a)&31L)<<16)|(((b)&31L)<<11))
#define LOP_IRR(op,a,s,uimm) ((op)|(((s)&31L)<<21)|(((a)&31L)<<16)|((uimm)&0xFFFF))
#define OP_BR(op,li,aa) ((op)|((li)&0x03FFFFFC)|((aa)<<1))
#define OP_BC(op,bo,bi,bd,aa) ((op)|(((bo)&0x1F)<<21)|(((bi)&0x1F)<<16)|((bd)&0xFFFC)|((aa)<<1))
#define OP_BCR(op,bo,bi) ((op)|(((bo)&0x1F)<<21)|(((bi)&0x1F)<<16))
#define OP_RLW(op,a,s,sh,mb,me) ((op)|(((s)&31L)<<21)|(((a)&31L)<<16)|(((sh)&31L)<<11)|\
(((mb)&31L)<<6)|(((me)&31L)<<1))

#define OP_ADD OPVCC(31,266,0,0)
#define OP_ADDI OPVCC(14,0,0,0)
#define OP_ADDIS OPVCC(15,0,0,0)
#define OP_ANDI OPVCC(28,0,0,0)
#define OP_EXTSB OPVCC(31,954,0,0)
#define OP_EXTSH OPVCC(31,922,0,0)
#define OP_MCRF OPVCC(19,0,0,0)
#define OP_MCRFS OPVCC(63,64,0,0)
#define OP_MCRXR OPVCC(31,512,0,0)
#define OP_MFCR OPVCC(31,19,0,0)
#define OP_MFFS OPVCC(63,583,0,0)
#define OP_MFMSR OPVCC(31,83,0,0)
#define OP_MFSPR OPVCC(31,339,0,0)
#define OP_MFSR OPVCC(31,595,0,0)
#define OP_MFSRIN OPVCC(31,659,0,0)
#define OP_MTCRF OPVCC(31,144,0,0)
#define OP_MTFSF OPVCC(63,711,0,0)
#define OP_MTFSFI OPVCC(63,134,0,0)
#define OP_MTMSR OPVCC(31,146,0,0)
#define OP_MTSPR OPVCC(31,467,0,0)
#define OP_MTSR OPVCC(31,210,0,0)
#define OP_MTSRIN OPVCC(31,242,0,0)
#define OP_MULLW OPVCC(31,235,0,0)
#define OP_OR OPVCC(31,444,0,0)
#define OP_ORI OPVCC(24,0,0,0)
#define OP_RLWINM OPVCC(21,0,0,0)
#define OP_SUBF OPVCC(31,40,0,0)

#define oclass(v) ((v).class-1)

long oprrr(int), opirr(int), opload(int), opstore(int), oploadx(int), opstorex(int);

int
getmask(uchar *m, ulong v)
{
int i;

m[0] = m[1] = 0;
if(v != ~0L && v & (1<<31) && v & 1){ /* MB > ME */
if(getmask(m, ~v)){
i = m[0]; m[0] = m[1]+1; m[1] = i-1;
return 1;
}
return 0;
}
for(i=0; i<32; i++)
if(v & (1<<(31-i))){
m[0] = i;
do {
m[1] = i;
} while(++i<32 && (v & (1<<(31-i))) != 0);
for(; i<32; i++)
if(v & (1<<(31-i)))
return 0;
return 1;
}
return 0;
}

void
maskgen(Prog *p, uchar *m, ulong v)
{
if(!getmask(m, v))
diag("cannot generate mask #%lux\n%P", v, p);
}

static void
reloc(Adr *a, long pc, int sext)
{
if(a->name == D_EXTERN || a->name == D_STATIC)
dynreloc(a->sym, pc, 1, 1, sext);
}

int
asmout(Prog *p, Optab *o, int aflag)
{
long o1, o2, o3, o4, o5, v, t;
Prog *ct;
int r, a;
uchar mask[2];

o1 = 0;
o2 = 0;
o3 = 0;
o4 = 0;
o5 = 0;
switch(o->type) {
default:
if(aflag)
return 0;
diag("unknown type %d", o->type);
if(!debug['a'])
prasm(p);
break;

case 0: /* pseudo ops */
if(aflag) {
if(p->link) {
if(p->as == ATEXT) {
ct = curtext;
o2 = autosize;
curtext = p;
autosize = p->to.offset + 4;
o1 = asmout(p->link, oplook(p->link), aflag);
curtext = ct;
autosize = o2;
} else
o1 = asmout(p->link, oplook(p->link), aflag);
}
return o1;
}
break;

case 1: /* mov r1,r2 ==> OR Rs,Rs,Ra */
if(p->to.reg == REGZERO && p->from.type == D_CONST) {
v = regoff(&p->from);
if(r0iszero && v != 0) {
nerrors--;
diag("literal operation on R0\n%P", p);
}
o1 = LOP_IRR(OP_ADDI, REGZERO, REGZERO, v);
break;
}
o1 = LOP_RRR(OP_OR, p->to.reg, p->from.reg, p->from.reg);
break;

case 2: /* int/cr/fp op Rb,[Ra],Rd */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = AOP_RRR(oprrr(p->as), p->to.reg, r, p->from.reg);
break;

case 3: /* mov $soreg/addcon/ucon, r ==> addis/addi $i,reg',r */
v = regoff(&p->from);
r = p->from.reg;
if(r == NREG)
r = o->param;
a = OP_ADDI;
if(o->a1 == C_UCON) {
a = OP_ADDIS;
v >>= 16;
}
if(r0iszero && p->to.reg == 0 && (r != 0 || v != 0))
diag("literal operation on R0\n%P", p);
o1 = AOP_IRR(a, p->to.reg, r, v);
break;

case 4: /* add/mul $scon,[r1],r2 */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
if(r0iszero && p->to.reg == 0)
diag("literal operation on R0\n%P", p);
o1 = AOP_IRR(opirr(p->as), p->to.reg, r, v);
break;

case 5: /* syscall */
if(aflag)
return 0;
o1 = oprrr(p->as);
break;

case 6: /* logical op Rb,[Rs,]Ra; no literal */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = LOP_RRR(oprrr(p->as), p->to.reg, r, p->from.reg);
break;

case 7: /* mov r, soreg ==> stw o(r) */
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
if(p->to.type == D_OREG && p->reg != NREG) {
if(v)
diag("illegal indexed instruction\n%P", p);
o1 = AOP_RRR(opstorex(p->as), p->from.reg, p->reg, r);
} else
o1 = AOP_IRR(opstore(p->as), p->from.reg, r, v);
break;

case 8: /* mov soreg, r ==> lbz/lhz/lwz o(r) */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
if(p->from.type == D_OREG && p->reg != NREG) {
if(v)
diag("illegal indexed instruction\n%P", p);
o1 = AOP_RRR(oploadx(p->as), p->to.reg, p->reg, r);
} else
o1 = AOP_IRR(opload(p->as), p->to.reg, r, v);
break;

case 9: /* movb soreg, r ==> lbz o(r),r2; extsb r2,r2 */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
if(p->from.type == D_OREG && p->reg != NREG) {
if(v)
diag("illegal indexed instruction\n%P", p);
o1 = AOP_RRR(oploadx(p->as), p->to.reg, p->reg, r);
} else
o1 = AOP_IRR(opload(p->as), p->to.reg, r, v);
o2 = LOP_RRR(OP_EXTSB, p->to.reg, p->to.reg, 0);
break;

case 10: /* sub Ra,[Rb],Rd => subf Rd,Ra,Rb */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = AOP_RRR(oprrr(p->as), p->to.reg, p->from.reg, r);
break;

case 11: /* br/bl lbra */
if(aflag)
return 0;
v = 0;
if(p->cond == UP){
if(p->to.sym->type != SUNDEF)
diag("bad branch sym type");
v = (ulong)p->to.sym->value >> (Roffset-2);
dynreloc(p->to.sym, p->pc, 0, 0, 0);
}
else if(p->cond)
v = p->cond->pc - p->pc;
if(v & 03) {
diag("odd branch target address\n%P", p);
v &= ~03;
}
if(v < -(1L<<25) || v >= (1L<<25))
diag("branch too far\n%P", p);
o1 = OP_BR(opirr(p->as), v, 0);
break;

case 12: /* movb r,r (signed); extsb is on PowerPC but not POWER */
o1 = LOP_RRR(OP_EXTSB, p->to.reg, p->from.reg, 0);
break;

case 13: /* mov[bh]z r,r; uses rlwinm not andi. to avoid changing CC */
if(p->as == AMOVBZ)
o1 = OP_RLW(OP_RLWINM, p->to.reg, p->from.reg, 0, 24, 31);
else if(p->as == AMOVH)
o1 = LOP_RRR(OP_EXTSH, p->to.reg, p->from.reg, 0);
else if(p->as == AMOVHZ)
o1 = OP_RLW(OP_RLWINM, p->to.reg, p->from.reg, 0, 16, 31);
else
diag("internal: bad mov[bh]z\n%P", p);
break;

/*14 */

case 17: /* bc bo,bi,lbra (same for now) */
case 16: /* bc bo,bi,sbra */
if(aflag)
return 0;
a = 0;
if(p->from.type == D_CONST)
a = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = 0;
v = 0;
if(p->cond)
v = p->cond->pc - p->pc;
if(v & 03) {
diag("odd branch target address\n%P", p);
v &= ~03;
}
if(v < -(1L<<16) || v >= (1L<<16))
diag("branch too far\n%P", p);
o1 = OP_BC(opirr(p->as), a, r, v, 0);
break;

case 15: /* br/bl (r) => mov r,lr; br/bl (lr) */
if(aflag)
return 0;
if(p->as == ABC || p->as == ABCL)
v = regoff(&p->to)&31L;
else
v = 20; /* unconditional */
r = p->reg;
if(r == NREG)
r = 0;
o1 = AOP_RRR(OP_MTSPR, p->to.reg, 0, 0) | ((D_LR&0x1f)<<16) | (((D_LR>>5)&0x1f)<<11);
o2 = OPVCC(19, 16, 0, 0);
if(p->as == ABL || p->as == ABCL)
o2 |= 1;
o2 = OP_BCR(o2, v, r);
break;

case 18: /* br/bl (lr/ctr); bc/bcl bo,bi,(lr/ctr) */
if(aflag)
return 0;
if(p->as == ABC || p->as == ABCL)
v = regoff(&p->from)&31L;
else
v = 20; /* unconditional */
r = p->reg;
if(r == NREG)
r = 0;
switch(oclass(p->to)) {
case C_CTR:
o1 = OPVCC(19, 528, 0, 0);
break;
case C_LR:
o1 = OPVCC(19, 16, 0, 0);
break;
default:
diag("bad optab entry (18): %d\n%P", p->to.class, p);
v = 0;
}
if(p->as == ABL || p->as == ABCL)
o1 |= 1;
o1 = OP_BCR(o1, v, r);
break;

case 19: /* mov $lcon,r ==> cau+or */
v = regoff(&p->from);
o1 = AOP_IRR(OP_ADDIS, p->to.reg, REGZERO, v>>16);
o2 = LOP_IRR(OP_ORI, p->to.reg, p->to.reg, v);
if(dlm)
reloc(&p->from, p->pc, 0);
break;

case 20: /* add $ucon,,r */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
if(p->as == AADD && (!r0iszero && p->reg == 0 || r0iszero && p->to.reg == 0))
diag("literal operation on R0\n%P", p);
o1 = AOP_IRR(opirr(p->as+AEND), p->to.reg, r, v>>16);
break;

case 22: /* add $lcon,r1,r2 ==> cau+or+add */ /* could do add/sub more efficiently */
v = regoff(&p->from);
if(p->to.reg == REGTMP || p->reg == REGTMP)
diag("cant synthesize large constant\n%P", p);
o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, v>>16);
o2 = LOP_IRR(OP_ORI, REGTMP, REGTMP, v);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o3 = AOP_RRR(oprrr(p->as), p->to.reg, REGTMP, r);
if(dlm)
reloc(&p->from, p->pc, 0);
break;

case 23: /* and $lcon,r1,r2 ==> cau+or+and */ /* masks could be done using rlnm etc. */
v = regoff(&p->from);
if(p->to.reg == REGTMP || p->reg == REGTMP)
diag("cant synthesize large constant\n%P", p);
o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, v>>16);
o2 = LOP_IRR(OP_ORI, REGTMP, REGTMP, v);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o3 = LOP_RRR(oprrr(p->as), p->to.reg, REGTMP, r);
if(dlm)
reloc(&p->from, p->pc, 0);
break;
/*24*/

case 26: /* mov $lsext/auto/oreg,,r2 ==> cau+add */
v = regoff(&p->from);
if(v & 0x8000L)
v += 0x10000L;
if(p->to.reg == REGTMP)
diag("can't synthesize large constant\n%P", p);
r = p->from.reg;
if(r == NREG)
r = o->param;
o1 = AOP_IRR(OP_ADDIS, REGTMP, r, v>>16);
o2 = AOP_IRR(OP_ADDI, p->to.reg, REGTMP, v);
break;

case 27: /* subc ra,$simm,rd => subfic rd,ra,$simm */
v = regoff(&p->from3);
r = p->from.reg;
o1 = AOP_IRR(opirr(p->as), p->to.reg, r, v);
break;

case 28: /* subc r1,$lcon,r2 ==> cau+or+subfc */
v = regoff(&p->from3);
if(p->to.reg == REGTMP || p->from.reg == REGTMP)
diag("can't synthesize large constant\n%P", p);
o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, v>>16);
o2 = LOP_IRR(OP_ORI, REGTMP, REGTMP, v);
o3 = AOP_RRR(oprrr(p->as), p->to.reg, p->from.reg, REGTMP);
if(dlm)
reloc(&p->from3, p->pc, 0);
break;

/*29, 30, 31 */

case 32: /* fmul frc,fra,frd */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = AOP_RRR(oprrr(p->as), p->to.reg, r, 0)|((p->from.reg&31L)<<6);
break;

case 33: /* fabs [frb,]frd; fmr. frb,frd */
r = p->from.reg;
if(oclass(p->from) == C_NONE)
r = p->to.reg;
o1 = AOP_RRR(oprrr(p->as), p->to.reg, 0, r);
break;

case 34: /* FMADDx fra,frb,frc,frd (d=a*b+c) */
o1 = AOP_RRR(oprrr(p->as), p->to.reg, p->from.reg, p->reg)|((p->from3.reg&31L)<<6);
break;

case 35: /* mov r,lext/lauto/loreg ==> cau $(v>>16),sb,r'; store o(r') */
v = regoff(&p->to);
if(v & 0x8000L)
v += 0x10000L;
r = p->to.reg;
if(r == NREG)
r = o->param;
o1 = AOP_IRR(OP_ADDIS, REGTMP, r, v>>16);
o2 = AOP_IRR(opstore(p->as), p->from.reg, REGTMP, v);
break;

case 36: /* mov bz/h/hz lext/lauto/lreg,r ==> lbz/lha/lhz etc */
v = regoff(&p->from);
if(v & 0x8000L)
v += 0x10000L;
r = p->from.reg;
if(r == NREG)
r = o->param;
o1 = AOP_IRR(OP_ADDIS, REGTMP, r, v>>16);
o2 = AOP_IRR(opload(p->as), p->to.reg, REGTMP, v);
break;

case 37: /* movb lext/lauto/lreg,r ==> lbz o(reg),r; extsb r */
v = regoff(&p->from);
if(v & 0x8000L)
v += 0x10000L;
r = p->from.reg;
if(r == NREG)
r = o->param;
o1 = AOP_IRR(OP_ADDIS, REGTMP, r, v>>16);
o2 = AOP_IRR(opload(p->as), p->to.reg, REGTMP, v);
o3 = LOP_RRR(OP_EXTSB, p->to.reg, p->to.reg, 0);
break;

case 40: /* word */
if(aflag)
return 0;
o1 = regoff(&p->from);
break;

case 41: /* stswi */
o1 = AOP_RRR(opirr(p->as), p->from.reg, p->to.reg, 0) | ((regoff(&p->from3)&0x7F)<<11);
break;

case 42: /* lswi */
o1 = AOP_RRR(opirr(p->as), p->to.reg, p->from.reg, 0) | ((regoff(&p->from3)&0x7F)<<11);
break;

case 43: /* unary indexed source: dcbf (b); dcbf (a+b) */
r = p->reg;
if(r == NREG)
r = 0;
o1 = AOP_RRR(oprrr(p->as), 0, r, p->from.reg);
break;

case 44: /* indexed store */
r = p->reg;
if(r == NREG)
r = 0;
o1 = AOP_RRR(opstorex(p->as), p->from.reg, r, p->to.reg);
break;
case 45: /* indexed load */
r = p->reg;
if(r == NREG)
r = 0;
o1 = AOP_RRR(oploadx(p->as), p->to.reg, r, p->from.reg);
break;

case 46: /* plain op */
o1 = oprrr(p->as);
break;

case 47: /* op Ra, Rd; also op [Ra,] Rd */
r = p->from.reg;
if(r == NREG)
r = p->to.reg;
o1 = AOP_RRR(oprrr(p->as), p->to.reg, r, 0);
break;

case 48: /* op Rs, Ra */
r = p->from.reg;
if(r == NREG)
r = p->to.reg;
o1 = LOP_RRR(oprrr(p->as), p->to.reg, r, 0);
break;

case 49: /* op Rb */
o1 = AOP_RRR(oprrr(p->as), 0, 0, p->from.reg);
break;

/*50*/

case 51: /* rem[u] r1[,r2],r3 */
r = p->reg;
if(r == NREG)
r = p->to.reg;
v = oprrr(p->as);
t = v & ((1<<10)|1); /* OE|Rc */
o1 = AOP_RRR(v&~t, REGTMP, r, p->from.reg);
o2 = AOP_RRR(OP_MULLW, REGTMP, REGTMP, p->from.reg);
o3 = AOP_RRR(OP_SUBF|t, p->to.reg, REGTMP, r);
break;

case 52: /* mtfsbNx cr(n) */
v = regoff(&p->from)&31L;
o1 = AOP_RRR(oprrr(p->as), v, 0, 0);
break;

case 53: /* mffsX ,fr1 */
o1 = AOP_RRR(OP_MFFS, p->to.reg, 0, 0);
break;

case 54: /* mov msr,r1; mov r1, msr*/
if(oclass(p->from) == C_REG)
o1 = AOP_RRR(OP_MTMSR, p->from.reg, 0, 0);
else
o1 = AOP_RRR(OP_MFMSR, p->to.reg, 0, 0);
break;

case 55: /* mov sreg,r1; mov r1,sreg */
v = 0;
if(p->from.type == D_SREG) {
r = p->from.reg;
o1 = OP_MFSR;
if(r == NREG && p->reg != NREG) {
r = 0;
v = p->reg;
o1 = OP_MFSRIN;
}
o1 = AOP_RRR(o1, p->to.reg, r&15L, v);
} else {
r = p->to.reg;
o1 = OP_MTSR;
if(r == NREG && p->reg != NREG) {
r = 0;
v = p->reg;
o1 = OP_MTSRIN;
}
o1 = AOP_RRR(o1, p->from.reg, r&15L, v);
}
if(r == NREG)
diag("illegal move indirect to/from segment register\n%P", p);
break;

case 56: /* sra $sh,[s,]a */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = AOP_RRR(opirr(p->as), r, p->to.reg, v&31L);
break;

case 57: /* slw $sh,[s,]a -> rlwinm ... */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
/*
* Let user (gs) shoot himself in the foot.
* qc has already complained.
*
if(v < 0 || v > 31)
diag("illegal shift %ld\n%P", v, p);
*/
if(v < 0)
v = 0;
else if(v > 32)
v = 32;
if(p->as == ASRW || p->as == ASRWCC) { /* shift right */
mask[0] = v;
mask[1] = 31;
v = 32-v;
} else {
mask[0] = 0;
mask[1] = 31-v;
}
o1 = OP_RLW(OP_RLWINM, p->to.reg, r, v, mask[0], mask[1]);
if(p->as == ASLWCC || p->as == ASRWCC)
o1 |= 1; /* Rc */
break;

case 58: /* logical $andcon,[s],a */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = LOP_IRR(opirr(p->as), p->to.reg, r, v);
break;

case 59: /* or/and $ucon,,r */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = LOP_IRR(opirr(p->as+AEND), p->to.reg, r, v>>16); /* oris, xoris, andis */
break;

case 60: /* tw to,a,b */
r = regoff(&p->from)&31L;
o1 = AOP_RRR(oprrr(p->as), r, p->reg, p->to.reg);
break;

case 61: /* tw to,a,$simm */
r = regoff(&p->from)&31L;
v = regoff(&p->to);
o1 = AOP_IRR(opirr(p->as), r, p->reg, v);
break;

case 62: /* rlwmi $sh,s,$mask,a */
v = regoff(&p->from);
maskgen(p, mask, regoff(&p->from3));
o1 = AOP_RRR(opirr(p->as), p->reg, p->to.reg, v);
o1 |= ((mask[0]&31L)<<6)|((mask[1]&31L)<<1);
break;

case 63: /* rlwmi b,s,$mask,a */
maskgen(p, mask, regoff(&p->from3));
o1 = AOP_RRR(opirr(p->as), p->reg, p->to.reg, p->from.reg);
o1 |= ((mask[0]&31L)<<6)|((mask[1]&31L)<<1);
break;

case 64: /* mtfsf fr[, $m] {,fpcsr} */
if(p->from3.type != D_NONE)
v = regoff(&p->from3)&255L;
else
v = 255;
o1 = OP_MTFSF | (v<<17) | (p->from.reg<<11);
break;

case 65: /* MOVFL $imm,FPSCR(n) => mtfsfi crfd,imm */
if(p->to.reg == NREG)
diag("must specify FPSCR(n)\n%P", p);
o1 = OP_MTFSFI | ((p->to.reg&15L)<<23) | ((regoff(&p->from)&31L)<<12);
break;

case 66: /* mov spr,r1; mov r1,spr, also dcr */
if(p->from.type == D_REG) {
r = p->from.reg;
v = p->to.offset;
if(p->to.type == D_DCR) {
if(p->to.reg != NREG) {
o1 = OPVCC(31,387,0,0); /* mtdcrx */
v = p->to.reg;
}else
o1 = OPVCC(31,451,0,0); /* mtdcr */
}else
o1 = OPVCC(31,467,0,0); /* mtspr */
} else {
r = p->to.reg;
v = p->from.offset;
if(p->from.type == D_DCR) {
if(p->from.reg != NREG) {
o1 = OPVCC(31,259,0,0); /* mfdcrx */
v = p->from.reg;
}else
o1 = OPVCC(31,323,0,0); /* mfdcr */
}else
o1 = OPVCC(31,339,0,0); /* mfspr */
}
o1 = AOP_RRR(o1, r, 0, 0) | ((v&0x1f)<<16) | (((v>>5)&0x1f)<<11);
break;

case 67: /* mcrf crfD,crfS */
if(p->from.type != D_CREG || p->from.reg == NREG ||
p->to.type != D_CREG || p->to.reg == NREG)
diag("illegal CR field number\n%P", p);
o1 = AOP_RRR(OP_MCRF, ((p->to.reg&7L)<<2), ((p->from.reg&7)<<2), 0);
break;

case 68: /* mfcr rD */
if(p->from.type == D_CREG && p->from.reg != NREG)
diag("must move whole CR to register\n%P", p);
o1 = AOP_RRR(OP_MFCR, p->to.reg, 0, 0);
break;

case 69: /* mtcrf CRM,rS */
if(p->from3.type != D_NONE) {
if(p->to.reg != NREG)
diag("can't use both mask and CR(n)\n%P", p);
v = regoff(&p->from3) & 0xff;
} else {
if(p->to.reg == NREG)
v = 0xff; /* CR */
else
v = 1<<(7-(p->to.reg&7)); /* CR(n) */
}
o1 = AOP_RRR(OP_MTCRF, p->from.reg, 0, 0) | (v<<12);
break;

case 70: /* [f]cmp r,r,cr*/
if(p->reg == NREG)
r = 0;
else
r = (p->reg&7)<<2;
o1 = AOP_RRR(oprrr(p->as), r, p->from.reg, p->to.reg);
break;

case 71: /* cmp[l] r,i,cr*/
if(p->reg == NREG)
r = 0;
else
r = (p->reg&7)<<2;
o1 = AOP_RRR(opirr(p->as), r, p->from.reg, 0) | (regoff(&p->to)&0xffff);
break;

case 72: /* mcrxr crfD */
if(p->to.reg == NREG)
diag("must move XER to CR(n)\n%P", p);
o1 = AOP_RRR(OP_MCRXR, ((p->to.reg&7L)<<2), 0, 0);
break;

case 73: /* mcrfs crfD,crfS */
if(p->from.type != D_FPSCR || p->from.reg == NREG ||
p->to.type != D_CREG || p->to.reg == NREG)
diag("illegal FPSCR/CR field number\n%P", p);
o1 = AOP_RRR(OP_MCRFS, ((p->to.reg&7L)<<2), ((p->from.reg&7)<<2), 0);
break;

/* relocation operations */

case 74:
v = regoff(&p->to);
o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, v>>16);
o2 = AOP_IRR(opstore(p->as), p->from.reg, REGTMP, v);
if(dlm)
reloc(&p->to, p->pc, 1);
break;

case 75:
v = regoff(&p->from);
o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, v>>16);
o2 = AOP_IRR(opload(p->as), p->to.reg, REGTMP, v);
if(dlm)
reloc(&p->from, p->pc, 1);
break;

case 76:
v = regoff(&p->from);
o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, v>>16);
o2 = AOP_IRR(opload(p->as), p->to.reg, REGTMP, v);
o3 = LOP_RRR(OP_EXTSB, p->to.reg, p->to.reg, 0);
if(dlm)
reloc(&p->from, p->pc, 1);
break;

}
if(aflag)
return o1;
v = p->pc;
switch(o->size) {
default:
if(debug['a'])
Bprint(&bso, " %.8lux:\t\t%P\n", v, p);
break;
case 4:
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux\t%P\n", v, o1, p);
lput(o1);
break;
case 8:
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", v, o1, o2, p);
lput(o1);
lput(o2);
break;
case 12:
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux%P\n", v, o1, o2, o3, p);
lput(o1);
lput(o2);
lput(o3);
break;
case 16:
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux%P\n",
v, o1, o2, o3, o4, p);
lput(o1);
lput(o2);
lput(o3);
lput(o4);
break;
case 20:
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux %.8lux%P\n",
v, o1, o2, o3, o4, o5, p);
lput(o1);
lput(o2);
lput(o3);
lput(o4);
lput(o5);
break;
}
return 0;
}

long
oprrr(int a)
{
switch(a) {
case AADD: return OPVCC(31,266,0,0);
case AADDCC: return OPVCC(31,266,0,1);
case AADDV: return OPVCC(31,266,1,0);
case AADDVCC: return OPVCC(31,266,1,1);
case AADDC: return OPVCC(31,10,0,0);
case AADDCCC: return OPVCC(31,10,0,1);
case AADDCV: return OPVCC(31,10,1,0);
case AADDCVCC: return OPVCC(31,10,1,1);
case AADDE: return OPVCC(31,138,0,0);
case AADDECC: return OPVCC(31,138,0,1);
case AADDEV: return OPVCC(31,138,1,0);
case AADDEVCC: return OPVCC(31,138,1,1);
case AADDME: return OPVCC(31,234,0,0);
case AADDMECC: return OPVCC(31,234,0,1);
case AADDMEV: return OPVCC(31,234,1,0);
case AADDMEVCC: return OPVCC(31,234,1,1);
case AADDZE: return OPVCC(31,202,0,0);
case AADDZECC: return OPVCC(31,202,0,1);
case AADDZEV: return OPVCC(31,202,1,0);
case AADDZEVCC: return OPVCC(31,202,1,1);

case AAND: return OPVCC(31,28,0,0);
case AANDCC: return OPVCC(31,28,0,1);
case AANDN: return OPVCC(31,60,0,0);
case AANDNCC: return OPVCC(31,60,0,1);

case ACMP: return OPVCC(31,0,0,0);
case ACMPU: return OPVCC(31,32,0,0);

case ACNTLZW: return OPVCC(31,26,0,0);
case ACNTLZWCC: return OPVCC(31,26,0,1);

case ACRAND: return OPVCC(19,257,0,0);
case ACRANDN: return OPVCC(19,129,0,0);
case ACREQV: return OPVCC(19,289,0,0);
case ACRNAND: return OPVCC(19,225,0,0);
case ACRNOR: return OPVCC(19,33,0,0);
case ACROR: return OPVCC(19,449,0,0);
case ACRORN: return OPVCC(19,417,0,0);
case ACRXOR: return OPVCC(19,193,0,0);

case ADCBF: return OPVCC(31,86,0,0);
case ADCBI: return OPVCC(31,470,0,0);
case ADCBST: return OPVCC(31,54,0,0);
case ADCBT: return OPVCC(31,278,0,0);
case ADCBTST: return OPVCC(31,246,0,0);
case ADCBZ: return OPVCC(31,1014,0,0);

case AREM:
case ADIVW: return OPVCC(31,491,0,0);
case AREMCC:
case ADIVWCC: return OPVCC(31,491,0,1);
case AREMV:
case ADIVWV: return OPVCC(31,491,1,0);
case AREMVCC:
case ADIVWVCC: return OPVCC(31,491,1,1);
case AREMU:
case ADIVWU: return OPVCC(31,459,0,0);
case AREMUCC:
case ADIVWUCC: return OPVCC(31,459,0,1);
case AREMUV:
case ADIVWUV: return OPVCC(31,459,1,0);
case AREMUVCC:
case ADIVWUVCC: return OPVCC(31,459,1,1);

case AEIEIO: return OPVCC(31,854,0,0);

case AEQV: return OPVCC(31,284,0,0);
case AEQVCC: return OPVCC(31,284,0,1);

case AEXTSB: return OPVCC(31,954,0,0);
case AEXTSBCC: return OPVCC(31,954,0,1);
case AEXTSH: return OPVCC(31,922,0,0);
case AEXTSHCC: return OPVCC(31,922,0,1);

case AFABS: return OPVCC(63,264,0,0);
case AFABSCC: return OPVCC(63,264,0,1);
case AFADD: return OPVCC(63,21,0,0);
case AFADDCC: return OPVCC(63,21,0,1);
case AFADDS: return OPVCC(59,21,0,0);
case AFADDSCC: return OPVCC(59,21,0,1);
case AFCMPO: return OPVCC(63,32,0,0);
case AFCMPU: return OPVCC(63,0,0,0);
case AFCTIW: return OPVCC(63,14,0,0);
case AFCTIWCC: return OPVCC(63,14,0,1);
case AFCTIWZ: return OPVCC(63,15,0,0);
case AFCTIWZCC: return OPVCC(63,15,0,1);
case AFDIV: return OPVCC(63,18,0,0);
case AFDIVCC: return OPVCC(63,18,0,1);
case AFDIVS: return OPVCC(59,18,0,0);
case AFDIVSCC: return OPVCC(59,18,0,1);
case AFMADD: return OPVCC(63,29,0,0);
case AFMADDCC: return OPVCC(63,29,0,1);
case AFMADDS: return OPVCC(59,29,0,0);
case AFMADDSCC: return OPVCC(59,29,0,1);
case AFMOVS:
case AFMOVD: return OPVCC(63,72,0,0); /* load */
case AFMOVDCC: return OPVCC(63,72,0,1);
case AFMSUB: return OPVCC(63,28,0,0);
case AFMSUBCC: return OPVCC(63,28,0,1);
case AFMSUBS: return OPVCC(59,28,0,0);
case AFMSUBSCC: return OPVCC(59,28,0,1);
case AFMUL: return OPVCC(63,25,0,0);
case AFMULCC: return OPVCC(63,25,0,1);
case AFMULS: return OPVCC(59,25,0,0);
case AFMULSCC: return OPVCC(59,25,0,1);
case AFNABS: return OPVCC(63,136,0,0);
case AFNABSCC: return OPVCC(63,136,0,1);
case AFNEG: return OPVCC(63,40,0,0);
case AFNEGCC: return OPVCC(63,40,0,1);
case AFNMADD: return OPVCC(63,31,0,0);
case AFNMADDCC: return OPVCC(63,31,0,1);
case AFNMADDS: return OPVCC(59,31,0,0);
case AFNMADDSCC: return OPVCC(59,31,0,1);
case AFNMSUB: return OPVCC(63,30,0,0);
case AFNMSUBCC: return OPVCC(63,30,0,1);
case AFNMSUBS: return OPVCC(59,30,0,0);
case AFNMSUBSCC: return OPVCC(59,30,0,1);
case AFRES: return OPVCC(59,24,0,0);
case AFRESCC: return OPVCC(59,24,0,1);
case AFRSP: return OPVCC(63,12,0,0);
case AFRSPCC: return OPVCC(63,12,0,1);
case AFRSQRTE: return OPVCC(63,26,0,0);
case AFRSQRTECC: return OPVCC(63,26,0,1);
case AFSEL: return OPVCC(63,23,0,0);
case AFSELCC: return OPVCC(63,23,0,1);
case AFSQRT: return OPVCC(63,22,0,0);
case AFSQRTCC: return OPVCC(63,22,0,1);
case AFSQRTS: return OPVCC(59,22,0,0);
case AFSQRTSCC: return OPVCC(59,22,0,1);
case AFSUB: return OPVCC(63,20,0,0);
case AFSUBCC: return OPVCC(63,20,0,1);
case AFSUBS: return OPVCC(59,20,0,0);
case AFSUBSCC: return OPVCC(59,20,0,1);

/* fp2 */
case AFPMUL: return OPVCC(0,8,0,0);
case AFXMUL: return OPVCC(0,9,0,0);
case AFXPMUL: return OPVCC(0,10,0,0);
case AFXSMUL: return OPVCC(0,11,0,0);
case AFPADD: return OPVCC(0,12,0,0);
case AFPSUB: return OPVCC(0,13,0,0);
case AFPRE: return OPVCC(0,14,0,0);
case AFPRSQRTE: return OPVCC(0,15,0,0);
case AFPMADD: return OPVCC(0,16,0,0);
case AFXMADD: return OPVCC(0,17,0,0);
case AFXCPMADD: return OPVCC(0,18,0,0);
case AFXCSMADD: return OPVCC(0,19,0,0);
case AFPNMADD: return OPVCC(0,20,0,0);
case AFXNMADD: return OPVCC(0,21,0,0);
case AFXCPNMADD: return OPVCC(0,22,0,0);
case AFXCSNMADD: return OPVCC(0,23,0,0);
case AFPMSUB: return OPVCC(0,24,0,0);
case AFXMSUB: return OPVCC(0,25,0,0);
case AFXCPMSUB: return OPVCC(0,26,0,0);
case AFXCSMSUB: return OPVCC(0,27,0,0);
case AFPNMSUB: return OPVCC(0,28,0,0);
case AFXNMSUB: return OPVCC(0,29,0,0);
case AFXCPNMSUB: return OPVCC(0,30,0,0);
case AFXCSNMSUB: return OPVCC(0,31,0,0);
case AFPABS: return OPVCC(0,96,0,0);
case AFPNEG: return OPVCC(0,160,0,0);
case AFPRSP: return OPVCC(0,192,0,0);
case AFPNABS: return OPVCC(0,224,0,0);
case AFSCMP: return OPVCC(0,320,0,0)|(3<<21);
case AFSABS: return OPVCC(0,352,0,0);
case AFSNEG: return OPVCC(0,416,0,0);
case AFSNABS: return OPVCC(0,480,0,0);
case AFPCTIW: return OPVCC(0,576,0,0);
case AFPCTIWZ: return OPVCC(0,704,0,0);

case AFPMOVD: return OPVCC(0,32,0,0); /* fpmr */
case AFSMOVD: return OPVCC(0,288,0,0); /* fsmr */
case AFXMOVD: return OPVCC(0,544,0,0); /* fxmr */
case AFMOVSPD: return OPVCC(0,800,0,0); /* fsmtp */
case AFMOVPSD: return OPVCC(0,928,0,0); /* fsmfp */

case AFXCPNPMA: return OPVCC(4,24,0,0);
case AFXCSNPMA: return OPVCC(4,25,0,0);
case AFXCPNSMA: return OPVCC(4,26,0,0);
case AFXCSNSMA: return OPVCC(4,27,0,0);
case AFXCXNPMA: return OPVCC(4,29,0,0);
case AFXCXNSMA: return OPVCC(4,30,0,0);
case AFXCXMA: return OPVCC(4,28,0,0);
case AFXCXNMS: return OPVCC(4,31,0,0);

case AICBI: return OPVCC(31,982,0,0);
case AISYNC: return OPVCC(19,150,0,0);

case AMTFSB0: return OPVCC(63,70,0,0);
case AMTFSB0CC: return OPVCC(63,70,0,1);
case AMTFSB1: return OPVCC(63,38,0,0);
case AMTFSB1CC: return OPVCC(63,38,0,1);

case AMULHW: return OPVCC(31,75,0,0);
case AMULHWCC: return OPVCC(31,75,0,1);
case AMULHWU: return OPVCC(31,11,0,0);
case AMULHWUCC: return OPVCC(31,11,0,1);
case AMULLW: return OPVCC(31,235,0,0);
case AMULLWCC: return OPVCC(31,235,0,1);
case AMULLWV: return OPVCC(31,235,1,0);
case AMULLWVCC: return OPVCC(31,235,1,1);

/* the following group is only available on IBM embedded powerpc */
case AMACCHW: return OPVCC(4,172,0,0);
case AMACCHWCC: return OPVCC(4,172,0,1);
case AMACCHWS: return OPVCC(4,236,0,0);
case AMACCHWSCC: return OPVCC(4,236,0,1);
case AMACCHWSU: return OPVCC(4,204,0,0);
case AMACCHWSUCC: return OPVCC(4,204,0,1);
case AMACCHWSUV: return OPVCC(4,204,1,0);
case AMACCHWSUVCC: return OPVCC(4,204,1,1);
case AMACCHWSV: return OPVCC(4,236,1,0);
case AMACCHWSVCC: return OPVCC(4,236,1,1);
case AMACCHWU: return OPVCC(4,140,0,0);
case AMACCHWUCC: return OPVCC(4,140,0,1);
case AMACCHWUV: return OPVCC(4,140,1,0);
case AMACCHWUVCC: return OPVCC(4,140,1,1);
case AMACCHWV: return OPVCC(4,172,1,0);
case AMACCHWVCC: return OPVCC(4,172,1,1);
case AMACHHW: return OPVCC(4,44,0,0);
case AMACHHWCC: return OPVCC(4,44,0,1);
case AMACHHWS: return OPVCC(4,108,0,0);
case AMACHHWSCC: return OPVCC(4,108,0,1);
case AMACHHWSU: return OPVCC(4,76,0,0);
case AMACHHWSUCC: return OPVCC(4,76,0,1);
case AMACHHWSUV: return OPVCC(4,76,1,0);
case AMACHHWSUVCC: return OPVCC(4,76,1,1);
case AMACHHWSV: return OPVCC(4,108,1,0);
case AMACHHWSVCC: return OPVCC(4,108,1,1);
case AMACHHWU: return OPVCC(4,12,0,0);
case AMACHHWUCC: return OPVCC(4,12,0,1);
case AMACHHWUV: return OPVCC(4,12,1,0);
case AMACHHWUVCC: return OPVCC(4,12,1,1);
case AMACHHWV: return OPVCC(4,44,1,0);
case AMACHHWVCC: return OPVCC(4,44,1,1);
case AMACLHW: return OPVCC(4,428,0,0);
case AMACLHWCC: return OPVCC(4,428,0,1);
case AMACLHWS: return OPVCC(4,492,0,0);
case AMACLHWSCC: return OPVCC(4,492,0,1);
case AMACLHWSU: return OPVCC(4,460,0,0);
case AMACLHWSUCC: return OPVCC(4,460,0,1);
case AMACLHWSUV: return OPVCC(4,460,1,0);
case AMACLHWSUVCC: return OPVCC(4,460,1,1);
case AMACLHWSV: return OPVCC(4,492,1,0);
case AMACLHWSVCC: return OPVCC(4,492,1,1);
case AMACLHWU: return OPVCC(4,396,0,0);
case AMACLHWUCC: return OPVCC(4,396,0,1);
case AMACLHWUV: return OPVCC(4,396,1,0);
case AMACLHWUVCC: return OPVCC(4,396,1,1);
case AMACLHWV: return OPVCC(4,428,1,0);
case AMACLHWVCC: return OPVCC(4,428,1,1);
case AMULCHW: return OPVCC(4,168,0,0);
case AMULCHWCC: return OPVCC(4,168,0,1);
case AMULCHWU: return OPVCC(4,136,0,0);
case AMULCHWUCC: return OPVCC(4,136,0,1);
case AMULHHW: return OPVCC(4,40,0,0);
case AMULHHWCC: return OPVCC(4,40,0,1);
case AMULHHWU: return OPVCC(4,8,0,0);
case AMULHHWUCC: return OPVCC(4,8,0,1);
case AMULLHW: return OPVCC(4,424,0,0);
case AMULLHWCC: return OPVCC(4,424,0,1);
case AMULLHWU: return OPVCC(4,392,0,0);
case AMULLHWUCC: return OPVCC(4,392,0,1);
case ANMACCHW: return OPVCC(4,174,0,0);
case ANMACCHWCC: return OPVCC(4,174,0,1);
case ANMACCHWS: return OPVCC(4,238,0,0);
case ANMACCHWSCC: return OPVCC(4,238,0,1);
case ANMACCHWSV: return OPVCC(4,238,1,0);
case ANMACCHWSVCC: return OPVCC(4,238,1,1);
case ANMACCHWV: return OPVCC(4,174,1,0);
case ANMACCHWVCC: return OPVCC(4,174,1,1);
case ANMACHHW: return OPVCC(4,46,0,0);
case ANMACHHWCC: return OPVCC(4,46,0,1);
case ANMACHHWS: return OPVCC(4,110,0,0);
case ANMACHHWSCC: return OPVCC(4,110,0,1);
case ANMACHHWSV: return OPVCC(4,110,1,0);
case ANMACHHWSVCC: return OPVCC(4,110,1,1);
case ANMACHHWV: return OPVCC(4,46,1,0);
case ANMACHHWVCC: return OPVCC(4,46,1,1);
case ANMACLHW: return OPVCC(4,430,0,0);
case ANMACLHWCC: return OPVCC(4,430,0,1);
case ANMACLHWS: return OPVCC(4,494,0,0);
case ANMACLHWSCC: return OPVCC(4,494,0,1);
case ANMACLHWSV: return OPVCC(4,494,1,0);
case ANMACLHWSVCC: return OPVCC(4,494,1,1);
case ANMACLHWV: return OPVCC(4,430,1,0);
case ANMACLHWVCC: return OPVCC(4,430,1,1);

case ANAND: return OPVCC(31,476,0,0);
case ANANDCC: return OPVCC(31,476,0,1);
case ANEG: return OPVCC(31,104,0,0);
case ANEGCC: return OPVCC(31,104,0,1);
case ANEGV: return OPVCC(31,104,1,0);
case ANEGVCC: return OPVCC(31,104,1,1);
case ANOR: return OPVCC(31,124,0,0);
case ANORCC: return OPVCC(31,124,0,1);
case AOR: return OPVCC(31,444,0,0);
case AORCC: return OPVCC(31,444,0,1);
case AORN: return OPVCC(31,412,0,0);
case AORNCC: return OPVCC(31,412,0,1);

case ARFI: return OPVCC(19,50,0,0);
case ARFCI: return OPVCC(19,51,0,0);

case ARLWMI: return OPVCC(20,0,0,0);
case ARLWMICC: return OPVCC(20,0,0,1);
case ARLWNM: return OPVCC(23,0,0,0);
case ARLWNMCC: return OPVCC(23,0,0,1);

case ASYSCALL: return OPVCC(17,1,0,0);

case ASLW: return OPVCC(31,24,0,0);
case ASLWCC: return OPVCC(31,24,0,1);

case ASRAW: return OPVCC(31,792,0,0);
case ASRAWCC: return OPVCC(31,792,0,1);

case ASRW: return OPVCC(31,536,0,0);
case ASRWCC: return OPVCC(31,536,0,1);

case ASUB: return OPVCC(31,40,0,0);
case ASUBCC: return OPVCC(31,40,0,1);
case ASUBV: return OPVCC(31,40,1,0);
case ASUBVCC: return OPVCC(31,40,1,1);
case ASUBC: return OPVCC(31,8,0,0);
case ASUBCCC: return OPVCC(31,8,0,1);
case ASUBCV: return OPVCC(31,8,1,0);
case ASUBCVCC: return OPVCC(31,8,1,1);
case ASUBE: return OPVCC(31,136,0,0);
case ASUBECC: return OPVCC(31,136,0,1);
case ASUBEV: return OPVCC(31,136,1,0);
case ASUBEVCC: return OPVCC(31,136,1,1);
case ASUBME: return OPVCC(31,232,0,0);
case ASUBMECC: return OPVCC(31,232,0,1);
case ASUBMEV: return OPVCC(31,232,1,0);
case ASUBMEVCC: return OPVCC(31,232,1,1);
case ASUBZE: return OPVCC(31,200,0,0);
case ASUBZECC: return OPVCC(31,200,0,1);
case ASUBZEV: return OPVCC(31,200,1,0);
case ASUBZEVCC: return OPVCC(31,200,1,1);

case ASYNC: return OPVCC(31,598,0,0);
case ATLBIE: return OPVCC(31,306,0,0);
case ATW: return OPVCC(31,4,0,0);

case AXOR: return OPVCC(31,316,0,0);
case AXORCC: return OPVCC(31,316,0,1);
}
diag("bad r/r opcode %A", a);
return 0;
}

long
opirr(int a)
{
switch(a) {
case AADD: return OPVCC(14,0,0,0);
case AADDC: return OPVCC(12,0,0,0);
case AADDCCC: return OPVCC(13,0,0,0);
case AADD+AEND: return OPVCC(15,0,0,0); /* ADDIS/CAU */

case AANDCC: return OPVCC(28,0,0,0);
case AANDCC+AEND: return OPVCC(29,0,0,0); /* ANDIS./ANDIU. */

case ABR: return OPVCC(18,0,0,0);
case ABL: return OPVCC(18,0,0,0) | 1;
case ABC: return OPVCC(16,0,0,0);
case ABCL: return OPVCC(16,0,0,0) | 1;

case ABEQ: return AOP_RRR(16<<26,12,2,0);
case ABGE: return AOP_RRR(16<<26,4,0,0);
case ABGT: return AOP_RRR(16<<26,12,1,0);
case ABLE: return AOP_RRR(16<<26,4,1,0);
case ABLT: return AOP_RRR(16<<26,12,0,0);
case ABNE: return AOP_RRR(16<<26,4,2,0);
case ABVC: return AOP_RRR(16<<26,4,3,0);
case ABVS: return AOP_RRR(16<<26,12,3,0);

case ACMP: return OPVCC(11,0,0,0);
case ACMPU: return OPVCC(10,0,0,0);
case ALSW: return OPVCC(31,597,0,0);

case AMULLW: return OPVCC(7,0,0,0);

case AOR: return OPVCC(24,0,0,0);
case AOR+AEND: return OPVCC(25,0,0,0); /* ORIS/ORIU */

case ARLWMI: return OPVCC(20,0,0,0); /* rlwimi */
case ARLWMICC: return OPVCC(20,0,0,1);

case ARLWNM: return OPVCC(21,0,0,0); /* rlwinm */
case ARLWNMCC: return OPVCC(21,0,0,1);

case ASRAW: return OPVCC(31,824,0,0);
case ASRAWCC: return OPVCC(31,824,0,1);

case ASTSW: return OPVCC(31,725,0,0);

case ASUBC: return OPVCC(8,0,0,0);

case ATW: return OPVCC(3,0,0,0);

case AXOR: return OPVCC(26,0,0,0); /* XORIL */
case AXOR+AEND: return OPVCC(27,0,0,0); /* XORIU */
}
diag("bad opcode i/r %A", a);
return 0;
}

/*
* load o(a),d
*/
long
opload(int a)
{
switch(a) {
case AMOVW: return OPVCC(32,0,0,0); /* lwz */
case AMOVWU: return OPVCC(33,0,0,0); /* lwzu */
case AMOVB:
case AMOVBZ: return OPVCC(34,0,0,0); /* load */
case AMOVBU:
case AMOVBZU: return OPVCC(35,0,0,0);
case AFMOVD: return OPVCC(50,0,0,0);
case AFMOVDU: return OPVCC(51,0,0,0);
case AFMOVS: return OPVCC(48,0,0,0);
case AFMOVSU: return OPVCC(49,0,0,0);
case AMOVH: return OPVCC(42,0,0,0);
case AMOVHU: return OPVCC(43,0,0,0);
case AMOVHZ: return OPVCC(40,0,0,0);
case AMOVHZU: return OPVCC(41,0,0,0);
case AMOVMW: return OPVCC(46,0,0,0); /* lmw */
}
diag("bad load opcode %A", a);
return 0;
}

/*
* indexed load a(b),d
*/
long
oploadx(int a)
{
switch(a) {
case AMOVW: return OPVCC(31,23,0,0); /* lwzx */
case AMOVWU: return OPVCC(31,55,0,0); /* lwzux */
case AMOVB:
case AMOVBZ: return OPVCC(31,87,0,0); /* lbzx */
case AMOVBU:
case AMOVBZU: return OPVCC(31,119,0,0); /* lbzux */
case AFMOVD: return OPVCC(31,599,0,0); /* lfdx */
case AFMOVDU: return OPVCC(31,631,0,0); /* lfdux */
case AFMOVS: return OPVCC(31,535,0,0); /* lfsx */
case AFMOVSU: return OPVCC(31,567,0,0); /* lfsux */
case AMOVH: return OPVCC(31,343,0,0); /* lhax */
case AMOVHU: return OPVCC(31,375,0,0); /* lhaux */
case AMOVHBR: return OPVCC(31,790,0,0); /* lhbrx */
case AMOVWBR: return OPVCC(31,534,0,0); /* lwbrx */
case AMOVHZ: return OPVCC(31,279,0,0); /* lhzx */
case AMOVHZU: return OPVCC(31,311,0,0); /* lhzux */
case AECIWX: return OPVCC(31,310,0,0); /* eciwx */
case ALWAR: return OPVCC(31,20,0,0); /* lwarx */
case ALSW: return OPVCC(31,533,0,0); /* lswx */
case AFSMOVS: return OPVCC(31,142,0,0); /* lfssx */
case AFSMOVSU: return OPVCC(31,174,0,0); /* lfssux */
case AFSMOVD: return OPVCC(31,206,0,0); /* lfsdx */
case AFSMOVDU: return OPVCC(31,238,0,0); /* lfsdux */
case AFXMOVS: return OPVCC(31,270,0,0); /* lfxsx */
case AFXMOVSU: return OPVCC(31,302,0,0); /* lfxsux */
case AFXMOVD: return OPVCC(31,334,0,0); /* lfxdx */
case AFXMOVDU: return OPVCC(31,366,0,0); /* lfxdux */
case AFPMOVS: return OPVCC(31,398,0,0); /* lfpsx */
case AFPMOVSU: return OPVCC(31,430,0,0); /* lfpsux */
case AFPMOVD: return OPVCC(31,462,0,0); /* lfpdx */
case AFPMOVDU: return OPVCC(31,494,0,0); /* lfpdux */
}
diag("bad loadx opcode %A", a);
return 0;
}

/*
* store s,o(d)
*/
long
opstore(int a)
{
switch(a) {
case AMOVB:
case AMOVBZ: return OPVCC(38,0,0,0); /* stb */
case AMOVBU:
case AMOVBZU: return OPVCC(39,0,0,0); /* stbu */
case AFMOVD: return OPVCC(54,0,0,0); /* stfd */
case AFMOVDU: return OPVCC(55,0,0,0); /* stfdu */
case AFMOVS: return OPVCC(52,0,0,0); /* stfs */
case AFMOVSU: return OPVCC(53,0,0,0); /* stfsu */
case AMOVHZ:
case AMOVH: return OPVCC(44,0,0,0); /* sth */
case AMOVHZU:
case AMOVHU: return OPVCC(45,0,0,0); /* sthu */
case AMOVMW: return OPVCC(47,0,0,0); /* stmw */
case ASTSW: return OPVCC(31,725,0,0); /* stswi */
case AMOVW: return OPVCC(36,0,0,0); /* stw */
case AMOVWU: return OPVCC(37,0,0,0); /* stwu */
}
diag("unknown store opcode %A", a);
return 0;
}

/*
* indexed store s,a(b)
*/
long
opstorex(int a)
{
switch(a) {
case AMOVB:
case AMOVBZ: return OPVCC(31,215,0,0); /* stbx */
case AMOVBU:
case AMOVBZU: return OPVCC(31,247,0,0); /* stbux */
case AFMOVD: return OPVCC(31,727,0,0); /* stfdx */
case AFMOVDU: return OPVCC(31,759,0,0); /* stfdux */
case AFMOVS: return OPVCC(31,663,0,0); /* stfsx */
case AFMOVSU: return OPVCC(31,695,0,0); /* stfsux */
case AMOVHZ:
case AMOVH: return OPVCC(31,407,0,0); /* sthx */
case AMOVHBR: return OPVCC(31,918,0,0); /* sthbrx */
case AMOVHZU:
case AMOVHU: return OPVCC(31,439,0,0); /* sthux */
case AMOVW: return OPVCC(31,151,0,0); /* stwx */
case AMOVWU: return OPVCC(31,183,0,0); /* stwux */
case ASTSW: return OPVCC(31,661,0,0); /* stswx */
case AMOVWBR: return OPVCC(31,662,0,0); /* stwbrx */
case ASTWCCC: return OPVCC(31,150,0,1); /* stwcx. */
case AECOWX: return OPVCC(31,438,0,0); /* ecowx */
case AFSMOVS: return OPVCC(31,654,0,0); /* stfssx */
/* case AFSMOVSU: return OPVCC(31,yy,0,0); */ /* stfssux not known */
/* case AFSMOVD: return OPVCC(31,yy,0,0); */ /* stfsdx not known */
case AFSMOVDU: return OPVCC(31,750,0,0); /* stfsdux */
case AFXMOVS: return OPVCC(31,782,0,0); /* stfxsx */
case AFXMOVSU: return OPVCC(31,814,0,0); /* stfxsux */
case AFXMOVD: return OPVCC(31,846,0,0); /* stfxdx */
case AFXMOVDU: return OPVCC(31,878,0,0); /* stfxdux */
case AFPMOVS: return OPVCC(31,910,0,0); /* stfpsx */
case AFPMOVSU: return OPVCC(31,942,0,0); /* stfpsux */
case AFPMOVD: return OPVCC(31,974,0,0); /* stfpdx */
case AFPMOVDU: return OPVCC(31,1006,0,0); /* stfpdux */
case AFPMOVIW: return OPVCC(31,526,0,0); /* stfpiwx */
}
diag("unknown storex opcode %A", a);
return 0;
}