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Preliminiary MIPS64 support, disabled by default due to performance impact.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2250 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2006-12-21 01:19:56 +00:00
parent 328a42406d
commit c570fd169c
12 changed files with 989 additions and 240 deletions
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146
target-mips/op_helper.c
View file

@ -74,8 +74,92 @@ void do_raise_exception_direct (uint32_t exception)
#undef MEMSUFFIX
#endif
#ifdef MIPS_HAS_MIPS64
#if TARGET_LONG_BITS > HOST_LONG_BITS
/* Those might call libgcc functions. */
void do_dsll (void)
{
T0 = T0 << T1;
}
void do_dsll32 (void)
{
T0 = T0 << (T1 + 32);
}
void do_dsra (void)
{
T0 = (int64_t)T0 >> T1;
}
void do_dsra32 (void)
{
T0 = (int64_t)T0 >> (T1 + 32);
}
void do_dsrl (void)
{
T0 = T0 >> T1;
}
void do_dsrl32 (void)
{
T0 = T0 >> (T1 + 32);
}
void do_drotr (void)
{
target_ulong tmp;
if (T1) {
tmp = T0 << (0x40 - T1);
T0 = (T0 >> T1) | tmp;
} else
T0 = T1;
}
void do_drotr32 (void)
{
target_ulong tmp;
if (T1) {
tmp = T0 << (0x40 - (32 + T1));
T0 = (T0 >> (32 + T1)) | tmp;
} else
T0 = T1;
}
void do_dsllv (void)
{
T0 = T1 << (T0 & 0x3F);
}
void do_dsrav (void)
{
T0 = (int64_t)T1 >> (T0 & 0x3F);
}
void do_dsrlv (void)
{
T0 = T1 >> (T0 & 0x3F);
}
void do_drotrv (void)
{
target_ulong tmp;
T0 &= 0x3F;
if (T0) {
tmp = T1 << (0x40 - T0);
T0 = (T1 >> T0) | tmp;
} else
T0 = T1;
}
#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */
#endif /* MIPS_HAS_MIPS64 */
/* 64 bits arithmetic for 32 bits hosts */
#if (HOST_LONG_BITS == 32)
#if TARGET_LONG_BITS > HOST_LONG_BITS
static inline uint64_t get_HILO (void)
{
return ((uint64_t)env->HI << 32) | (uint64_t)env->LO;
@ -83,8 +167,8 @@ static inline uint64_t get_HILO (void)
static inline void set_HILO (uint64_t HILO)
{
env->LO = HILO & 0xFFFFFFFF;
env->HI = HILO >> 32;
env->LO = SIGN_EXTEND32(HILO & 0xFFFFFFFF);
env->HI = SIGN_EXTEND32(HILO >> 32);
}
void do_mult (void)
@ -94,7 +178,7 @@ void do_mult (void)
void do_multu (void)
{
set_HILO((uint64_t)T0 * (uint64_t)T1);
set_HILO((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
}
void do_madd (void)
@ -109,7 +193,7 @@ void do_maddu (void)
{
uint64_t tmp;
tmp = ((uint64_t)T0 * (uint64_t)T1);
tmp = ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
set_HILO(get_HILO() + tmp);
}
@ -125,11 +209,41 @@ void do_msubu (void)
{
uint64_t tmp;
tmp = ((uint64_t)T0 * (uint64_t)T1);
tmp = ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
set_HILO(get_HILO() - tmp);
}
#endif
#ifdef MIPS_HAS_MIPS64
void do_dmult (void)
{
/* XXX */
set_HILO((int64_t)T0 * (int64_t)T1);
}
void do_dmultu (void)
{
/* XXX */
set_HILO((uint64_t)T0 * (uint64_t)T1);
}
void do_ddiv (void)
{
if (T1 != 0) {
env->LO = (int64_t)T0 / (int64_t)T1;
env->HI = (int64_t)T0 % (int64_t)T1;
}
}
void do_ddivu (void)
{
if (T1 != 0) {
env->LO = T0 / T1;
env->HI = T0 % T1;
}
}
#endif
#if defined(CONFIG_USER_ONLY)
void do_mfc0_random (void)
{
@ -191,12 +305,12 @@ void cpu_mips_tlb_flush (CPUState *env, int flush_global)
/* CP0 helpers */
void do_mfc0_random (void)
{
T0 = cpu_mips_get_random(env);
T0 = SIGN_EXTEND32(cpu_mips_get_random(env));
}
void do_mfc0_count (void)
{
T0 = cpu_mips_get_count(env);
T0 = SIGN_EXTEND32(cpu_mips_get_count(env));
}
void do_mtc0_status_debug(uint32_t old, uint32_t val)
@ -319,7 +433,7 @@ static void fill_tlb (int idx)
/* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
tlb = &env->tlb[idx];
tlb->VPN = env->CP0_EntryHi & 0xFFFFE000;
tlb->VPN = env->CP0_EntryHi & SIGN_EXTEND32(0xFFFFE000);
tlb->ASID = env->CP0_EntryHi & 0xFF;
size = env->CP0_PageMask >> 13;
size = 4 * (size + 1);
@ -364,7 +478,7 @@ void do_tlbp (void)
uint8_t ASID;
int i;
tag = env->CP0_EntryHi & 0xFFFFE000;
tag = env->CP0_EntryHi & SIGN_EXTEND32(0xFFFFE000);
ASID = env->CP0_EntryHi & 0xFF;
for (i = 0; i < MIPS_TLB_NB; i++) {
tlb = &env->tlb[i];
@ -418,16 +532,16 @@ void do_tlbr (void)
#endif /* !CONFIG_USER_ONLY */
void op_dump_ldst (const unsigned char *func)
void dump_ldst (const unsigned char *func)
{
if (loglevel)
fprintf(logfile, "%s => %08x %08x\n", __func__, T0, T1);
fprintf(logfile, "%s => " TLSZ " " TLSZ "\n", __func__, T0, T1);
}
void dump_sc (void)
{
if (loglevel) {
fprintf(logfile, "%s %08x at %08x (%08x)\n", __func__,
fprintf(logfile, "%s " TLSZ " at " TLSZ " (" TLSZ ")\n", __func__,
T1, T0, env->CP0_LLAddr);
}
}
@ -435,7 +549,7 @@ void dump_sc (void)
void debug_eret (void)
{
if (loglevel) {
fprintf(logfile, "ERET: pc %08x EPC %08x ErrorEPC %08x (%d)\n",
fprintf(logfile, "ERET: pc " TLSZ " EPC " TLSZ " ErrorEPC " TLSZ " (%d)\n",
env->PC, env->CP0_EPC, env->CP0_ErrorEPC,
env->hflags & MIPS_HFLAG_ERL ? 1 : 0);
}
@ -454,13 +568,13 @@ void do_pmon (int function)
break;
case 3:
case 12:
printf("%c", env->gpr[4] & 0xFF);
printf("%c", (char)(env->gpr[4] & 0xFF));
break;
case 17:
break;
case 158:
{
unsigned char *fmt = (void *)env->gpr[4];
unsigned char *fmt = (void *)(unsigned long)env->gpr[4];
printf("%s", fmt);
}
break;