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Implement embedded PowerPC exceptions prefix and vectors registers. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3300 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-10-01 01:32:49 +00:00
parent 4e290a0b71
commit 6f5d427d58
2 changed files with 71 additions and 24 deletions
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15
target-ppc/op.c
View File

@ -1949,6 +1949,21 @@ void OPPROTO op_hrfid (void)
RETURN();
}
#endif
/* Exception vectors */
void OPPROTO op_store_excp_prefix (void)
{
T0 &= env->ivpr_mask;
env->excp_prefix = T0;
RETURN();
}
void OPPROTO op_store_excp_vector (void)
{
T0 &= env->ivor_mask;
env->excp_vectors[PARAM1] = T0;
RETURN();
}
#endif
/* Trap word */

80
target-ppc/translate_init.c
View File

@ -389,6 +389,32 @@ static void spr_write_pir (void *opaque, int sprn)
}
#endif
#if !defined(CONFIG_USER_ONLY)
/* Callback used to write the exception vector base */
static void spr_write_excp_prefix (void *opaque, int sprn)
{
gen_op_store_excp_prefix();
gen_op_store_spr(sprn);
}
static void spr_write_excp_vector (void *opaque, int sprn)
{
DisasContext *ctx = opaque;
if (sprn >= SPR_BOOKE_IVOR0 && sprn <= SPR_BOOKE_IVOR15) {
gen_op_store_excp_vector(sprn - SPR_BOOKE_IVOR0);
gen_op_store_spr(sprn);
} else if (sprn >= SPR_BOOKE_IVOR32 && sprn <= SPR_BOOKE_IVOR37) {
gen_op_store_excp_vector(sprn - SPR_BOOKE_IVOR32 + 32);
gen_op_store_spr(sprn);
} else {
printf("Trying to write an unknown exception vector %d %03x\n",
sprn, sprn);
GEN_EXCP_PRIVREG(ctx);
}
}
#endif
#if defined(CONFIG_USER_ONLY)
#define spr_register(env, num, name, uea_read, uea_write, \
oea_read, oea_write, initial_value) \
@ -1311,97 +1337,97 @@ static void gen_spr_BookE (CPUPPCState *env)
0x00000000);
spr_register(env, SPR_BOOKE_IVPR, "IVPR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_prefix,
0x00000000);
/* Exception vectors */
spr_register(env, SPR_BOOKE_IVOR0, "IVOR0",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR1, "IVOR1",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR2, "IVOR2",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR3, "IVOR3",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR4, "IVOR4",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR5, "IVOR5",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR6, "IVOR6",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR7, "IVOR7",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR8, "IVOR8",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR9, "IVOR9",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR10, "IVOR10",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR11, "IVOR11",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR12, "IVOR12",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR13, "IVOR13",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR14, "IVOR14",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR15, "IVOR15",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
#if 0
spr_register(env, SPR_BOOKE_IVOR32, "IVOR32",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR33, "IVOR33",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR34, "IVOR34",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR35, "IVOR35",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR36, "IVOR36",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
spr_register(env, SPR_BOOKE_IVOR37, "IVOR37",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_vector,
0x00000000);
#endif
spr_register(env, SPR_BOOKE_PID, "PID",
@ -1720,7 +1746,7 @@ static void gen_spr_40x (CPUPPCState *env)
0x00000000);
spr_register(env, SPR_40x_EVPR, "EVPR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_excp_prefix,
0x00000000);
spr_register(env, SPR_40x_SRR2, "SRR2",
&spr_read_generic, &spr_write_generic,
@ -2147,6 +2173,9 @@ static void init_excp_4xx_real (CPUPPCState *env)
env->excp_vectors[POWERPC_EXCP_FIT] = 0x00001010;
env->excp_vectors[POWERPC_EXCP_WDT] = 0x00001020;
env->excp_vectors[POWERPC_EXCP_DEBUG] = 0x00002000;
env->excp_prefix = 0x00000000;
env->ivor_mask = 0x0000FFF0;
env->ivpr_mask = 0xFFFF0000;
#endif
}
@ -2167,6 +2196,9 @@ static void init_excp_4xx_softmmu (CPUPPCState *env)
env->excp_vectors[POWERPC_EXCP_DTLB] = 0x00001100;
env->excp_vectors[POWERPC_EXCP_ITLB] = 0x00001200;
env->excp_vectors[POWERPC_EXCP_DEBUG] = 0x00002000;
env->excp_prefix = 0x00000000;
env->ivor_mask = 0x0000FFF0;
env->ivpr_mask = 0xFFFF0000;
#endif
}