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target-xtensa: implement CACHE group 

All operations in this group are no-ops, because cache ought to be
transparent to applications. However cache may be abused, then we'll
need to actually implement these opcodes.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Max Filippov 2011-09-06 03:55:39 +04:00 committed by Blue Swirl
parent 28067b2288
commit 8ffc2d0d97
1 changed files with 94 additions and 1 deletions
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95
target-xtensa/translate.c
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@ -1012,7 +1012,100 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 7: /*CACHEc*/
TBD();
if (RRI8_T < 8) {
HAS_OPTION(XTENSA_OPTION_DCACHE);
}
switch (RRI8_T) {
case 0: /*DPFRc*/
break;
case 1: /*DPFWc*/
break;
case 2: /*DPFROc*/
break;
case 3: /*DPFWOc*/
break;
case 4: /*DHWBc*/
break;
case 5: /*DHWBIc*/
break;
case 6: /*DHIc*/
break;
case 7: /*DIIc*/
break;
case 8: /*DCEc*/
switch (OP1) {
case 0: /*DPFLl*/
HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
break;
case 2: /*DHUl*/
HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
break;
case 3: /*DIUl*/
HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
break;
case 4: /*DIWBc*/
HAS_OPTION(XTENSA_OPTION_DCACHE);
break;
case 5: /*DIWBIc*/
HAS_OPTION(XTENSA_OPTION_DCACHE);
break;
default: /*reserved*/
RESERVED();
break;
}
break;
case 12: /*IPFc*/
HAS_OPTION(XTENSA_OPTION_ICACHE);
break;
case 13: /*ICEc*/
switch (OP1) {
case 0: /*IPFLl*/
HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
break;
case 2: /*IHUl*/
HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
break;
case 3: /*IIUl*/
HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
break;
default: /*reserved*/
RESERVED();
break;
}
break;
case 14: /*IHIc*/
HAS_OPTION(XTENSA_OPTION_ICACHE);
break;
case 15: /*IIIc*/
HAS_OPTION(XTENSA_OPTION_ICACHE);
break;
default: /*reserved*/
RESERVED();
break;
}
break;
case 9: /*L16SI*/