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Support for address masking

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4882 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-07-17 12:53:05 +00:00
parent a5a52cf246
commit 2cade6a3f6
3 changed files with 58 additions and 33 deletions
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28
target-sparc/op_helper.c
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@ -32,11 +32,21 @@ do { printf("ASI: " fmt , ##args); } while (0)
#define DPRINTF_ASI(fmt, args...) do {} while (0)
#endif
#ifdef TARGET_ABI32
#define ABI32_MASK(addr) do { (addr) &= 0xffffffffULL; } while (0)
#ifdef TARGET_SPARC64
#ifndef TARGET_ABI32
#define AM_CHECK(env1) ((env1)->pstate & PS_AM)
#else
#define ABI32_MASK(addr) do {} while (0)
#define AM_CHECK(env1) (1)
#endif
#endif
static inline void address_mask(CPUState *env1, target_ulong *addr)
{
#ifdef TARGET_SPARC64
if (AM_CHECK(env1))
*addr &= 0xffffffffULL;
#endif
}
void raise_exception(int tt)
{
@ -1381,7 +1391,7 @@ uint64_t helper_ld_asi(target_ulong addr, int asi, int size, int sign)
raise_exception(TT_PRIV_ACT);
helper_check_align(addr, size - 1);
ABI32_MASK(addr);
address_mask(env, &addr);
switch (asi) {
case 0x80: // Primary
@ -1470,7 +1480,7 @@ void helper_st_asi(target_ulong addr, target_ulong val, int asi, int size)
raise_exception(TT_PRIV_ACT);
helper_check_align(addr, size - 1);
ABI32_MASK(addr);
address_mask(env, &addr);
/* Convert to little endian */
switch (asi) {
@ -2330,7 +2340,7 @@ void helper_stdf(target_ulong addr, int mem_idx)
break;
}
#else
ABI32_MASK(addr);
address_mask(env, &addr);
stfq_raw(addr, DT0);
#endif
}
@ -2355,7 +2365,7 @@ void helper_lddf(target_ulong addr, int mem_idx)
break;
}
#else
ABI32_MASK(addr);
address_mask(env, &addr);
DT0 = ldfq_raw(addr);
#endif
}
@ -2389,7 +2399,7 @@ void helper_ldqf(target_ulong addr, int mem_idx)
break;
}
#else
ABI32_MASK(addr);
address_mask(env, &addr);
u.ll.upper = ldq_raw(addr);
u.ll.lower = ldq_raw((addr + 8) & 0xffffffffULL);
QT0 = u.q;
@ -2426,7 +2436,7 @@ void helper_stqf(target_ulong addr, int mem_idx)
}
#else
u.q = QT0;
ABI32_MASK(addr);
address_mask(env, &addr);
stq_raw(addr, u.ll.upper);
stq_raw((addr + 8) & 0xffffffffULL, u.ll.lower);
#endif