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MIPS TLB style selection at runtime, by Herve Poussineau.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2809 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-05-13 13:49:44 +00:00
parent f707cfba9a
commit 29929e3490
8 changed files with 149 additions and 114 deletions
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25
target-mips/translate.c
View file

@ -4164,7 +4164,7 @@ die:
}
#endif /* TARGET_MIPS64 */
static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd)
static void gen_cp0 (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int rd)
{
const char *opn = "ldst";
@ -4199,24 +4199,30 @@ static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd)
opn = "dmtc0";
break;
#endif
#if defined(MIPS_USES_R4K_TLB)
case OPC_TLBWI:
gen_op_tlbwi();
opn = "tlbwi";
if (!env->do_tlbwi)
goto die;
gen_op_tlbwi();
break;
case OPC_TLBWR:
gen_op_tlbwr();
opn = "tlbwr";
if (!env->do_tlbwr)
goto die;
gen_op_tlbwr();
break;
case OPC_TLBP:
gen_op_tlbp();
opn = "tlbp";
if (!env->do_tlbp)
goto die;
gen_op_tlbp();
break;
case OPC_TLBR:
gen_op_tlbr();
opn = "tlbr";
if (!env->do_tlbr)
goto die;
gen_op_tlbr();
break;
#endif
case OPC_ERET:
opn = "eret";
save_cpu_state(ctx, 0);
@ -4244,6 +4250,7 @@ static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd)
ctx->bstate = BS_EXCP;
break;
default:
die:
MIPS_INVAL(opn);
generate_exception(ctx, EXCP_RI);
return;
@ -5576,10 +5583,10 @@ static void decode_opc (CPUState *env, DisasContext *ctx)
case OPC_DMFC0:
case OPC_DMTC0:
#endif
gen_cp0(ctx, op1, rt, rd);
gen_cp0(env, ctx, op1, rt, rd);
break;
case OPC_C0_FIRST ... OPC_C0_LAST:
gen_cp0(ctx, MASK_C0(ctx->opcode), rt, rd);
gen_cp0(env, ctx, MASK_C0(ctx->opcode), rt, rd);
break;
case OPC_MFMC0:
op2 = MASK_MFMC0(ctx->opcode);