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Merge saidi@zizzer:/z/m5/Bitkeeper/linux/

Browse source 
into zeep.eecs.umich.edu:/z/saidi/work/m5

--HG--
extra : convert_revision : 9fa64783d4f5d03acff5d11cba61e46590d6a9dd
This commit is contained in:
Ali Saidi 2004-06-06 19:31:06 -04:00
parent ee65ee1604 401e5f29c7
commit 7b5cad8419
1 changed files with 59 additions and 2 deletions
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61
arch/alpha/isa_desc
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@ -2119,12 +2119,69 @@ decode OPCODE default Unknown::unknown() {
0x1c: decode INTFUNC {
0x00: decode RA { 31: sextb({{ Rc.sb = Rb_or_imm< 7:0>; }}); }
0x01: decode RA { 31: sextw({{ Rc.sw = Rb_or_imm<15:0>; }}); }
0x32: ctlz({{
uint64_t count = 0;
uint64_t temp = Rb;
if (temp & ULL(0xffffffff00000000))
temp >>= 32;
else
count += 32;
if (temp & ULL(0xffff0000))
temp >>= 16;
else
count += 16;
if (temp & ULL(0xff00))
temp >>= 8;
else
count += 8;
if (temp & ULL(0xf0))
temp >>= 4;
else
count += 4;
if (temp & ULL(0xC))
temp >>= 2;
else
count += 2;
if (temp & ULL(0x2))
temp >>= 1;
else
count += 1;
if ((temp & ULL(0x1)) != 0x1)
count += 1;
Rc = count;
}}, IntAluOp);
0x33: cttz({{
uint64_t count = 0;
uint64_t temp = Rb;
if (!(temp & ULL(0x00000000ffffffff))) {
temp >>= 32;
count += 32;
}
if (!(temp & ULL(0x0000ffff))) {
temp >>= 16;
count += 16;
}
if (!(temp & ULL(0x00ff))) {
temp >>= 8;
count += 8;
}
if (!(temp & ULL(0x0f))) {
temp >>= 4;
count += 4;
}
if (!(temp & ULL(0x3))) {
temp >>= 2;
count += 2;
}
if (!(temp & ULL(0x1)))
count += 1;
Rc = count;
}}, IntAluOp);
format FailUnimpl {
0x30: ctpop();
0x31: perr();
0x32: ctlz();
0x33: cttz();
0x34: unpkbw();
0x35: unpkbl();
0x36: pkwb();