diff options
Diffstat (limited to 'target-sparc/op_helper.c')
| -rw-r--r-- | target-sparc/op_helper.c | 58 |
1 files changed, 4 insertions, 54 deletions
diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c index 40cdf6ee2c..f8f94ac39a 100644 --- a/target-sparc/op_helper.c +++ b/target-sparc/op_helper.c @@ -1674,34 +1674,9 @@ uint64_t helper_ld_asi(target_ulong addr, int asi, int size, int sign) } case 0x56: // I-MMU tag read { - unsigned int i; + int reg = (addr >> 3) & 0x3f; - for (i = 0; i < 64; i++) { - // Valid, ctx match, vaddr match - if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0) { - uint64_t mask; - - switch ((env->itlb_tte[i] >> 61) & 3) { - default: - case 0x0: - mask = 0xffffffffffffffff; - break; - case 0x1: - mask = 0xffffffffffff0fff; - break; - case 0x2: - mask = 0xfffffffffff80fff; - break; - case 0x3: - mask = 0xffffffffffc00fff; - break; - } - if ((env->itlb_tag[i] & mask) == (addr & mask)) { - ret = env->itlb_tte[i]; - break; - } - } - } + ret = env->itlb_tag[reg]; break; } case 0x58: // D-MMU regs @@ -1720,34 +1695,9 @@ uint64_t helper_ld_asi(target_ulong addr, int asi, int size, int sign) } case 0x5e: // D-MMU tag read { - unsigned int i; + int reg = (addr >> 3) & 0x3f; - for (i = 0; i < 64; i++) { - // Valid, ctx match, vaddr match - if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0) { - uint64_t mask; - - switch ((env->dtlb_tte[i] >> 61) & 3) { - default: - case 0x0: - mask = 0xffffffffffffffff; - break; - case 0x1: - mask = 0xffffffffffff0fff; - break; - case 0x2: - mask = 0xfffffffffff80fff; - break; - case 0x3: - mask = 0xffffffffffc00fff; - break; - } - if ((env->dtlb_tag[i] & mask) == (addr & mask)) { - ret = env->dtlb_tte[i]; - break; - } - } - } + ret = env->dtlb_tag[reg]; break; } case 0x46: // D-cache data |