ref: cbf5d3dc340da5b96cd1282e622a3f862c5b103e
dir: /sys/src/cmd/kl/asm.c/
#include "l.h"
#define LPUT(c)\
{\
cbp[0] = (c)>>24;\
cbp[1] = (c)>>16;\
cbp[2] = (c)>>8;\
cbp[3] = (c);\
cbp += 4;\
cbc -= 4;\
if(cbc <= 0)\
cflush();\
}
#define CPUT(c)\
{\
cbp[0] = (c);\
cbp++;\
cbc--;\
if(cbc <= 0)\
cflush();\
}
long
entryvalue(void)
{
char *a;
Sym *s;
a = INITENTRY;
if(*a >= '0' && *a <= '9')
return atolwhex(a);
s = lookup(a, 0);
if(s->type == 0)
return INITTEXT;
if(s->type != STEXT && s->type != SLEAF)
diag("entry not text: %s", s->name);
return s->value;
}
void
asmb(void)
{
Prog *p;
long t;
Optab *o;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
seek(cout, HEADR, 0);
pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 4;
}
if(p->pc != pc) {
diag("phase error %lux sb %lux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
if(asmout(p, o, 0)) {
p = p->link;
pc += 4;
}
pc += o->size;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
curtext = P;
switch(HEADTYPE) {
case 0:
case 3:
seek(cout, HEADR+textsize, 0);
break;
case 1:
case 2:
seek(cout, HEADR+textsize, 0);
break;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100);
else
datblk(t, datsize-t);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 3:
seek(cout, HEADR+textsize+datsize, 0);
break;
case 2:
case 1:
seek(cout, HEADR+textsize+datsize, 0);
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f sp\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
/* round up file length for boot image */
if(HEADTYPE == 0 || HEADTYPE == 3)
if((symsize+lcsize) & 1)
CPUT(0);
cflush();
}
seek(cout, 0L, 0);
switch(HEADTYPE) {
case 0:
lput(0x1030107); /* magic and sections */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 1:
break;
case 2:
lput(4*13*13+7); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 3:
lput(0x1030107); /* magic and sections */
lput(0x90100000);
#define SPARC_NOOP 0x01000000
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
break;
}
cflush();
}
void
lput(long l)
{
LPUT(l);
}
void
cflush(void)
{
int n;
n = sizeof(buf.cbuf) - cbc;
if(n)
write(cout, buf.cbuf, n);
cbp = buf.cbuf;
cbc = sizeof(buf.cbuf);
}
void
asmsym(void)
{
Prog *p;
Auto *a;
Sym *s;
int h;
s = lookup("etext", 0);
if(s->type == STEXT)
putsymb(s->name, 'T', s->value, s->version);
for(h=0; h<NHASH; h++)
for(s=hash[h]; s!=S; s=s->link)
switch(s->type) {
case SCONST:
putsymb(s->name, 'D', s->value, s->version);
continue;
case SDATA:
putsymb(s->name, 'D', s->value+INITDAT, s->version);
continue;
case SBSS:
putsymb(s->name, 'B', s->value+INITDAT, s->version);
continue;
case SFILE:
putsymb(s->name, 'f', s->value, s->version);
continue;
}
for(p=textp; p!=P; p=p->cond) {
s = p->from.sym;
if(s->type != STEXT && s->type != SLEAF)
continue;
/* filenames first */
for(a=p->to.autom; a; a=a->link)
if(a->type == D_FILE)
putsymb(a->asym->name, 'z', a->aoffset, 0);
else
if(a->type == D_FILE1)
putsymb(a->asym->name, 'Z', a->aoffset, 0);
if(s->type == STEXT)
putsymb(s->name, 'T', s->value, s->version);
else
putsymb(s->name, 'L', s->value, s->version);
/* frame, auto and param after */
putsymb(".frame", 'm', p->to.offset+4, 0);
for(a=p->to.autom; a; a=a->link)
if(a->type == D_AUTO)
putsymb(a->asym->name, 'a', -a->aoffset, 0);
else
if(a->type == D_PARAM)
putsymb(a->asym->name, 'p', a->aoffset, 0);
}
if(debug['v'] || debug['n'])
Bprint(&bso, "symsize = %lud\n", symsize);
Bflush(&bso);
}
void
putsymb(char *s, int t, long v, int ver)
{
int i, f;
if(t == 'f')
s++;
LPUT(v);
if(ver)
t += 'a' - 'A';
CPUT(t+0x80); /* 0x80 is variable length */
if(t == 'Z' || t == 'z') {
CPUT(s[0]);
for(i=1; s[i] != 0 || s[i+1] != 0; i += 2) {
CPUT(s[i]);
CPUT(s[i+1]);
}
CPUT(0);
CPUT(0);
i++;
}
else {
for(i=0; s[i]; i++)
CPUT(s[i]);
CPUT(0);
}
symsize += 4 + 1 + i + 1;
if(debug['n']) {
if(t == 'z' || t == 'Z') {
Bprint(&bso, "%c %.8lux ", t, v);
for(i=1; s[i] != 0 || s[i+1] != 0; i+=2) {
f = ((s[i]&0xff) << 8) | (s[i+1]&0xff);
Bprint(&bso, "/%x", f);
}
Bprint(&bso, "\n");
return;
}
if(ver)
Bprint(&bso, "%c %.8lux %s<%d>\n", t, v, s, ver);
else
Bprint(&bso, "%c %.8lux %s\n", t, v, s);
}
}
#define MINLC 4
void
asmlc(void)
{
long oldpc, oldlc;
Prog *p;
long v, s;
oldpc = INITTEXT;
oldlc = 0;
for(p = firstp; p != P; p = p->link) {
if(p->line == oldlc || p->as == ATEXT || p->as == ANOP) {
if(p->as == ATEXT)
curtext = p;
if(debug['L'])
Bprint(&bso, "%6lux %P\n",
p->pc, p);
continue;
}
if(debug['L'])
Bprint(&bso, "\t\t%6ld", lcsize);
v = (p->pc - oldpc) / MINLC;
while(v) {
s = 127;
if(v < 127)
s = v;
CPUT(s+128); /* 129-255 +pc */
if(debug['L'])
Bprint(&bso, " pc+%ld*%d(%ld)", s, MINLC, s+128);
v -= s;
lcsize++;
}
s = p->line - oldlc;
oldlc = p->line;
oldpc = p->pc + MINLC;
if(s > 64 || s < -64) {
CPUT(0); /* 0 vv +lc */
CPUT(s>>24);
CPUT(s>>16);
CPUT(s>>8);
CPUT(s);
if(debug['L']) {
if(s > 0)
Bprint(&bso, " lc+%ld(%d,%ld)\n",
s, 0, s);
else
Bprint(&bso, " lc%ld(%d,%ld)\n",
s, 0, s);
Bprint(&bso, "%6lux %P\n",
p->pc, p);
}
lcsize += 5;
continue;
}
if(s > 0) {
CPUT(0+s); /* 1-64 +lc */
if(debug['L']) {
Bprint(&bso, " lc+%ld(%ld)\n", s, 0+s);
Bprint(&bso, "%6lux %P\n",
p->pc, p);
}
} else {
CPUT(64-s); /* 65-128 -lc */
if(debug['L']) {
Bprint(&bso, " lc%ld(%ld)\n", s, 64-s);
Bprint(&bso, "%6lux %P\n",
p->pc, p);
}
}
lcsize++;
}
while(lcsize & 1) {
s = 129;
CPUT(s);
lcsize++;
}
if(debug['v'] || debug['L'])
Bprint(&bso, "lcsize = %ld\n", lcsize);
Bflush(&bso);
}
void
datblk(long s, long n)
{
Prog *p;
char *cast;
long l, fl, j, d;
int i, c;
memset(buf.dbuf, 0, n+100);
for(p = datap; p != P; p = p->link) {
curp = p;
l = p->from.sym->value + p->from.offset - s;
c = p->reg;
i = 0;
if(l < 0) {
if(l+c <= 0)
continue;
while(l < 0) {
l++;
i++;
}
}
if(l >= n)
continue;
if(p->as != AINIT && p->as != ADYNT && !p->from.sym->dupok) {
for(j=l+(c-i)-1; j>=l; j--)
if(buf.dbuf[j]) {
print("%P\n", p);
diag("multiple initialization");
break;
}
}
switch(p->to.type) {
default:
diag("unknown mode in initialization\n%P", p);
break;
case D_FCONST:
switch(c) {
default:
case 4:
fl = ieeedtof(&p->to.ieee);
cast = (char*)&fl;
for(; i<c; i++) {
buf.dbuf[l] = cast[fnuxi8[i+4]];
l++;
}
break;
case 8:
cast = (char*)&p->to.ieee;
for(; i<c; i++) {
buf.dbuf[l] = cast[fnuxi8[i]];
l++;
}
break;
}
break;
case D_SCONST:
for(; i<c; i++) {
buf.dbuf[l] = p->to.sval[i];
l++;
}
break;
case D_CONST:
d = p->to.offset;
if(p->to.sym) {
if(p->to.sym->type == STEXT ||
p->to.sym->type == SLEAF)
d += p->to.sym->value;
if(p->to.sym->type == SDATA)
d += p->to.sym->value + INITDAT;
if(p->to.sym->type == SBSS)
d += p->to.sym->value + INITDAT;
}
cast = (char*)&d;
switch(c) {
default:
diag("bad nuxi %d %d\n%P", c, i, curp);
break;
case 1:
for(; i<c; i++) {
buf.dbuf[l] = cast[inuxi1[i]];
l++;
}
break;
case 2:
for(; i<c; i++) {
buf.dbuf[l] = cast[inuxi2[i]];
l++;
}
break;
case 4:
for(; i<c; i++) {
buf.dbuf[l] = cast[inuxi4[i]];
l++;
}
break;
}
break;
}
}
write(cout, buf.dbuf, n);
}
#define OP2(x) (0x80000000|((x)<<19))
#define OP3(x) (0xc0000000|((x)<<19))
#define OPB(x) (0x00800000|((x)<<25))
#define OPT(x) (0x81d02000|((x)<<25))
#define OPF1(x) (0x81a00000|((x)<<5))
#define OPF2(x) (0x81a80000|((x)<<5))
#define OPFB(x) (0x01800000|((x)<<25))
#define OP_RRR(op,r1,r2,r3)\
(0x00000000 | op |\
(((r1)&31L)<<0) |\
(((r2)&31L)<<14) |\
(((r3)&31L)<<25))
#define OP_IRR(op,i,r2,r3)\
(0x00002000L | (op) |\
(((i)&0x1fffL)<<0) |\
(((r2)&31L)<<14) |\
(((r3)&31L)<<25))
#define OP_BRA(op,pc)\
((op) |\
(((pc)&0x3fffff)<<0))
int
asmout(Prog *p, Optab *o, int aflag)
{
long o1, o2, o3, o4, o5, v;
Prog *ct;
int r;
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 r1,r0,r2 */
o1 = OP_RRR(opcode(AOR), p->from.reg, REGZERO, p->to.reg);
break;
case 2: /* mov $c,r ==> add r1,r0,r2 */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
o1 = OP_IRR(opcode(AADD), v, r, p->to.reg);
break;
case 3: /* mov soreg, r */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
if(v == 0 && p->reg != NREG)
o1 = OP_RRR(opcode(p->as), p->reg, r, p->to.reg);
else
o1 = OP_IRR(opcode(p->as), v, r, p->to.reg);
break;
case 4: /* mov r, soreg */
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
if(v == 0 && p->reg != NREG)
o1 = OP_RRR(opcode(p->as+AEND), p->reg, r, p->from.reg);
else
o1 = OP_IRR(opcode(p->as+AEND), v, r, p->from.reg);
break;
case 5: /* mov $lcon, reg => sethi, add */
v = regoff(&p->from);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_IRR(opcode(AADD), (v&0x3ff), REGTMP, p->to.reg);
break;
case 6: /* mov asi, r[+r] */
o1 = OP_RRR(opcode(p->as), p->reg, p->from.reg, p->to.reg);
o1 |= (1<<23) | ((p->from.offset&0xff)<<5);
break;
case 7: /* mov [+r]r, asi */
o1 = OP_RRR(opcode(p->as+AEND), p->reg, p->to.reg, p->from.reg);
o1 |= (1<<23) | ((p->to.offset&0xff)<<5);
break;
case 8: /* mov r, preg and mov preg, r */
if(p->to.type == D_PREG) {
r = p->from.reg;
switch(p->to.reg)
{
default:
diag("unknown register P%d", p->to.reg);
case D_Y:
o1 = OP2(48); /* wry */
break;
case D_PSR:
o1 = OP2(49); /* wrpsr */
break;
case D_WIM:
o1 = OP2(50); /* wrwim */
break;
case D_TBR:
o1 = OP2(51); /* wrtbr */
break;
}
o1 = OP_IRR(o1, 0, r, 0);
break;
}
if(p->from.type == D_PREG) {
r = p->to.reg;
switch(p->from.reg)
{
default:
diag("unknown register P%d", p->to.reg);
case D_Y:
o1 = OP2(40); /* rdy */
break;
case D_PSR:
o1 = OP2(41); /* rdpsr */
break;
case D_WIM:
o1 = OP2(42); /* rdwim */
break;
case D_TBR:
o1 = OP2(43); /* rdtbr */
break;
}
o1 = OP_RRR(o1, 0, 0, r);
break;
}
break;
case 9: /* movb r,r */
v = 24;
if(p->as == AMOVH || p->as == AMOVHU)
v = 16;
r = ASRA;
if(p->as == AMOVBU || p->as == AMOVHU)
r = ASRL;
o1 = OP_IRR(opcode(ASLL), v, p->from.reg, p->to.reg);
o2 = OP_IRR(opcode(r), v, p->to.reg, p->to.reg);
break;
case 10: /* mov $loreg, reg */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(AADD), r, REGTMP, REGTMP);
o3 = OP_IRR(opcode(AADD), (v&0x3ff), REGTMP, p->to.reg);
break;
case 11: /* mov loreg, r */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(AADD), r, REGTMP, REGTMP);
o3 = OP_IRR(opcode(p->as), (v&0x3ff), REGTMP, p->to.reg);
break;
case 12: /* mov r, loreg */
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(AADD), r, REGTMP, REGTMP);
o3 = OP_IRR(opcode(p->as+AEND), (v&0x3ff), REGTMP, p->from.reg);
break;
case 13: /* mov $ucon, r */
v = regoff(&p->from);
o1 = 0x1000000 | (p->to.reg<<25) | ((v>>10) & 0x3fffff); /* sethi */
break;
case 20: /* op $scon,r */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = OP_IRR(opcode(p->as), v, r, p->to.reg);
break;
case 21: /* op r1,r2 */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = OP_RRR(opcode(p->as), p->from.reg, r, p->to.reg);
break;
case 22: /* op $lcon,r */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_IRR(opcode(AADD), (v&0x3ff), REGTMP, REGTMP);
o3 = OP_RRR(opcode(p->as), REGTMP, r, p->to.reg);
break;
case 23: /* cmp r,r */
o1 = OP_RRR(opcode(ASUBCC), p->to.reg, p->from.reg, REGZERO);
break;
case 24: /* cmp r,$c */
v = regoff(&p->to);
o1 = OP_IRR(opcode(ASUBCC), v, p->from.reg, REGZERO);
break;
case 25: /* cmp $c,r BOTCH, fix compiler */
v = regoff(&p->from);
o1 = OP_IRR(opcode(AADD), v, NREG, REGTMP);
o2 = OP_RRR(opcode(ASUBCC), p->to.reg, REGTMP, REGZERO);
break;
case 26: /* op $ucon,r */
v = regoff(&p->from);
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(p->as), REGTMP, r, p->to.reg);
break;
case 30: /* jmp/jmpl soreg */
if(aflag)
return 0;
v = regoff(&p->to);
r = p->reg;
if(r == NREG && p->as == AJMPL)
r = 15;
o1 = OP_IRR(opcode(AJMPL), v, p->to.reg, r);
break;
case 31: /* ba jmp */
if(aflag)
return 0;
r = p->as;
if(r == AJMP)
r = ABA;
v = 0;
if(p->cond)
v = p->cond->pc - p->pc;
o1 = OP_BRA(opcode(r), v/4);
if(r == ABA && p->link && p->cond && isnop(p->link)) {
o2 = asmout(p->cond, oplook(p->cond), 1);
if(o2) {
o1 += 1;
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", p->pc, o1, o2, p);
LPUT(o1);
LPUT(o2);
return 1;
}
/* cant set annul here because pc has already been counted */
}
break;
case 32: /* jmpl lbra */
if(aflag)
return 0;
v = 0;
if(p->cond)
v = p->cond->pc - p->pc;
r = p->reg;
if(r != NREG && r != 15)
diag("cant jmpl other than R15");
o1 = 0x40000000 | ((v/4) & 0x3fffffffL); /* call */
if(p->link && p->cond && isnop(p->link)) {
o2 = asmout(p->cond, oplook(p->cond), 1);
if(o2) {
o1 += 1;
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", p->pc, o1, o2, p);
LPUT(o1);
LPUT(o2);
return 1;
}
}
break;
case 33: /* trap r */
if(aflag)
return 0;
o1 = opcode(p->as) | (p->from.reg<<14);
break;
case 34: /* rett r1,r2 -> jmpl (r1); rett (r2) */
if(aflag)
return 0;
o1 = OP_IRR(opcode(AJMPL), 0, p->from.reg, REGZERO);
o2 = OP_IRR(opcode(ARETT), 0, p->to.reg, REGZERO);
break;
case 40: /* ldfsr, stfsr, stdq */
if(p->to.type == D_PREG) {
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
if(p->to.reg == D_FSR) {
o1 = OP_IRR(OP3(33), v, r, 0);
break;
}
diag("unknown reg load %d", p->to.reg);
} else {
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
if(p->from.reg == D_FSR) {
o1 = OP_IRR(OP3(37), v, r, 0);
break;
}
if(p->as == AMOVD && p->from.reg == D_FPQ) {
o1 = OP_IRR(OP3(38), v, r, 0);
break;
}
diag("unknown reg store %d", p->from.reg);
}
break;
case 41: /* ldf,ldd */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
if(p->as == AFMOVF || p->as == AMOVW) {
o1 = OP_IRR(OP3(32), v, r, p->to.reg);
break;
}
if(p->as == AMOVD || p->as == AFMOVD) {
o1 = OP_IRR(OP3(35), v, r, p->to.reg);
break;
}
diag("only MOVD and MOVW to FREG");
break;
case 42: /* ldd -> ldf,ldf */
/* note should be ldd with proper allignment */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
o1 = OP_IRR(OP3(32), v, r, p->to.reg);
o2 = OP_IRR(OP3(32), v+4, r, p->to.reg+1);
break;
case 43: /* stf */
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
if(p->as == AFMOVF || p->as == AMOVW) {
o1 = OP_IRR(OP3(36), v, r, p->from.reg);
break;
}
if(p->as == AMOVD || p->as == AFMOVD) {
o1 = OP_IRR(OP3(39), v, r, p->from.reg);
break;
}
diag("only MOVD and MOVW from FREG");
break;
case 44: /* std -> stf,stf */
/* note should be std with proper allignment */
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
o1 = OP_IRR(OP3(36), v, r, p->from.reg);
o2 = OP_IRR(OP3(36), v+4, r, p->from.reg+1);
break;
case 45: /* ldf lorg */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(AADD), r, REGTMP, REGTMP);
o3 = OP_IRR(OP3(32), v&0x3ff, REGTMP, p->to.reg);
break;
case 46: /* ldd lorg -> ldf,ldf */
/* note should be ldd with proper allignment */
r = p->from.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->from);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(AADD), r, REGTMP, REGTMP);
o3 = OP_IRR(OP3(32), (v&0x3ff), REGTMP, p->to.reg);
o4 = OP_IRR(OP3(32), (v&0x3ff)+4, REGTMP, p->to.reg+1);
break;
case 47: /* stf lorg */
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(AADD), r, REGTMP, REGTMP);
o3 = OP_IRR(OP3(36), v&0x3ff, REGTMP, p->from.reg);
break;
case 48: /* std lorg -> stf,stf */
/* note should be std with proper allignment */
r = p->to.reg;
if(r == NREG)
r = o->param;
v = regoff(&p->to);
o1 = 0x1000000 | (REGTMP<<25) | ((v>>10) & 0x3fffff); /* sethi */
o2 = OP_RRR(opcode(AADD), r, REGTMP, REGTMP);
o3 = OP_IRR(OP3(36), (v&0x3ff), REGTMP, p->from.reg);
o4 = OP_IRR(OP3(36), (v&0x3ff)+4, REGTMP, p->from.reg+1);
break;
case 49: /* fmovd -> fmovf,fmovf */
o1 = OP_RRR(opcode(AFMOVF), p->from.reg, 0, p->to.reg);
o2 = OP_RRR(opcode(AFMOVF), p->from.reg+1, 0, p->to.reg+1);
break;
case 50: /* fcmp */
o1 = OP_RRR(opcode(p->as), p->to.reg, p->from.reg, 0);
break;
case 51: /* word */
if(aflag)
return 0;
o1 = regoff(&p->from);
break;
case 52: /* div */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = OP_IRR(opcode(ASRA), 31, r, REGTMP);
o2 = OP_IRR(OP2(48), 0, REGTMP, 0);
o3 = OP_RRR(opcode(ADIV), p->from.reg, r, p->to.reg);
break;
case 53: /* divl */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = OP_IRR(OP2(48), 0, REGZERO, 0);
o2 = OP_RRR(opcode(ADIVL), p->from.reg, r, p->to.reg);
break;
case 54: /* mod */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = OP_IRR(opcode(ASRA), 31, r, REGTMP);
o2 = OP_IRR(OP2(48), 0, REGTMP, 0);
o3 = OP_RRR(opcode(ADIV), p->from.reg, r, REGTMP);
o4 = OP_RRR(opcode(AMUL), p->from.reg, REGTMP, REGTMP);
o5 = OP_RRR(opcode(ASUB), REGTMP, r, p->to.reg);
break;
case 55: /* modl */
r = p->reg;
if(r == NREG)
r = p->to.reg;
o1 = OP_IRR(OP2(48), 0, REGZERO, 0);
o2 = OP_RRR(opcode(ADIVL), p->from.reg, r, REGTMP);
o3 = OP_RRR(opcode(AMUL), p->from.reg, REGTMP, REGTMP);
o4 = OP_RRR(opcode(ASUB), REGTMP, r, p->to.reg);
break;
case 56: /* b(cc) -- annullable */
if(aflag)
return 0;
r = p->as;
v = 0;
if(p->cond)
v = p->cond->pc - p->pc;
o1 = OP_BRA(opcode(r), v/4);
if(p->link && p->cond && isnop(p->link))
if(!debug['A']) {
o2 = asmout(p->cond, oplook(p->cond), 2);
if(o2) {
o1 |= 1<<29; /* annul */
o1 += 1;
if(debug['a'])
Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", p->pc, o1, o2, p);
LPUT(o1);
LPUT(o2);
return 1;
}
}
break;
case 57: /* op r1,r2 with reserved rs1 */
r = 0;
o1 = OP_RRR(opcode(p->as), p->from.reg, r, p->to.reg);
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;
}
int
isnop(Prog *p)
{
if(p->as != AORN)
return 0;
if(p->reg != REGZERO && p->reg != NREG)
return 0;
if(p->from.type != D_REG || p->from.reg != REGZERO)
return 0;
if(p->to.type != D_REG || p->to.reg != REGZERO)
return 0;
return 1;
}
long
opcode(int a)
{
switch(a) {
case AADD: return OP2(0);
case AADDCC: return OP2(16);
case AADDX: return OP2(8);
case AADDXCC: return OP2(24);
case AMUL: return OP2(10);
case ADIV: return OP2(15);
case ADIVL: return OP2(14);
case ATADDCC: return OP2(32);
case ATADDCCTV: return OP2(34);
case ASUB: return OP2(4);
case ASUBCC: return OP2(20);
case ASUBX: return OP2(12);
case ASUBXCC: return OP2(28);
case ATSUBCC: return OP2(33);
case ATSUBCCTV: return OP2(35);
case AMULSCC: return OP2(36);
case ASAVE: return OP2(60);
case ARESTORE: return OP2(61);
case AAND: return OP2(1);
case AANDCC: return OP2(17);
case AANDN: return OP2(5);
case AANDNCC: return OP2(21);
case AOR: return OP2(2);
case AORCC: return OP2(18);
case AORN: return OP2(6);
case AORNCC: return OP2(22);
case AXOR: return OP2(3);
case AXORCC: return OP2(19);
case AXNOR: return OP2(7);
case AXNORCC: return OP2(23);
case ASLL: return OP2(37);
case ASRL: return OP2(38);
case ASRA: return OP2(39);
case AJMPL:
case AJMP: return OP2(56);
case ARETT: return OP2(57);
case AMOVBU: return OP3(1); /* ldub */
case AMOVB: return OP3(9); /* ldsb */
case AMOVHU: return OP3(2); /* lduh */
case AMOVH: return OP3(10); /* ldsh */
case AMOVW: return OP3(0); /* ld */
case AMOVD: return OP3(3); /* ldd */
case AMOVBU+AEND:
case AMOVB+AEND:return OP3(5); /* stb */
case AMOVHU+AEND:
case AMOVH+AEND:return OP3(6); /* sth */
case AMOVW+AEND:return OP3(4); /* st */
case AMOVD+AEND:return OP3(7); /* std */
case ASWAP: /* swap is symmetric */
case ASWAP+AEND:return OP3(15);
case ATAS: return OP3(13); /* tas is really ldstub */
case ABN: return OPB(0);
case ABE: return OPB(1);
case ABLE: return OPB(2);
case ABL: return OPB(3);
case ABLEU: return OPB(4);
case ABCS: return OPB(5);
case ABNEG: return OPB(6);
case ABVS: return OPB(7);
case ABA: return OPB(8);
case ABNE: return OPB(9);
case ABG: return OPB(10);
case ABGE: return OPB(11);
case ABGU: return OPB(12);
case ABCC: return OPB(13);
case ABPOS: return OPB(14);
case ABVC: return OPB(15);
case AFBA: return OPFB(8);
case AFBE: return OPFB(9);
case AFBG: return OPFB(6);
case AFBGE: return OPFB(11);
case AFBL: return OPFB(4);
case AFBLE: return OPFB(13);
case AFBLG: return OPFB(2);
case AFBN: return OPFB(0);
case AFBNE: return OPFB(1);
case AFBO: return OPFB(15);
case AFBU: return OPFB(7);
case AFBUE: return OPFB(10);
case AFBUG: return OPFB(5);
case AFBUGE: return OPFB(12);
case AFBUL: return OPFB(3);
case AFBULE: return OPFB(14);
case ATN: return OPT(0);
case ATE: return OPT(1);
case ATLE: return OPT(2);
case ATL: return OPT(3);
case ATLEU: return OPT(4);
case ATCS: return OPT(5);
case ATNEG: return OPT(6);
case ATVS: return OPT(7);
case ATA: return OPT(8);
case ATNE: return OPT(9);
case ATG: return OPT(10);
case ATGE: return OPT(11);
case ATGU: return OPT(12);
case ATCC: return OPT(13);
case ATPOS: return OPT(14);
case ATVC: return OPT(15);
case AFADDF: return OPF1(65);
case AFADDD: return OPF1(66);
case AFADDX: return OPF1(67);
case AFSUBF: return OPF1(69);
case AFSUBD: return OPF1(70);
case AFSUBX: return OPF1(71);
case AFMULF: return OPF1(73);
case AFMULD: return OPF1(74);
case AFMULX: return OPF1(75);
case AFDIVF: return OPF1(77);
case AFDIVD: return OPF1(78);
case AFDIVX: return OPF1(79);
case AFMOVF: return OPF1(1);
case AFNEGF: return OPF1(5);
case AFABSF: return OPF1(9);
case AFSQRTF: return OPF1(41);
case AFSQRTD: return OPF1(42);
case AFSQRTX: return OPF1(43);
case AFMOVWF: return OPF1(196);
case AFMOVWD: return OPF1(200);
case AFMOVWX: return OPF1(204);
case AFMOVFW: return OPF1(209);
case AFMOVDW: return OPF1(210);
case AFMOVXW: return OPF1(211);
case AFMOVFD: return OPF1(201);
case AFMOVFX: return OPF1(205);
case AFMOVDF: return OPF1(198);
case AFMOVDX: return OPF1(206);
case AFMOVXF: return OPF1(199);
case AFMOVXD: return OPF1(203);
case AFCMPF: return OPF2(81);
case AFCMPD: return OPF2(82);
case AFCMPX: return OPF2(83);
case AFCMPEF: return OPF2(85);
case AFCMPED: return OPF2(86);
case AFCMPEX: return OPF2(87);
case AUNIMP: return 0;
}
diag("bad opcode %A", a);
return 0;
}