diff options
| author | Aurelien Jarno <aurelien@aurel32.net> | 2009-11-22 13:22:54 +0100 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2009-11-22 14:12:19 +0100 |
| commit | 2a6e32dd46967124f12c29eece7aa7fc3f0ee063 (patch) | |
| tree | fa0760fd31f33d71b3a52c3c90d056ce31adc5c6 /target-mips/op_helper.c | |
| parent | 5499b6ffac490a3a44dcb97e9cebb99f0151d696 (diff) | |
target-mips: make CP0_LLAddr register CPU dependent
Depending on the CPU, CP0_LLAddr is either read-only or read-write,
and the returned value can be shifted by a variable amount of bits.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Diffstat (limited to 'target-mips/op_helper.c')
| -rw-r--r-- | target-mips/op_helper.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c index d2a81f08b4..52d687d337 100644 --- a/target-mips/op_helper.c +++ b/target-mips/op_helper.c @@ -730,7 +730,7 @@ target_ulong helper_mftc0_status(void) target_ulong helper_mfc0_lladdr (void) { - return (int32_t)env->lladdr >> 4; + return (int32_t)(env->lladdr >> env->CP0_LLAddr_shift); } target_ulong helper_mfc0_watchlo (uint32_t sel) @@ -795,7 +795,7 @@ target_ulong helper_dmfc0_tcschefback (void) target_ulong helper_dmfc0_lladdr (void) { - return env->lladdr >> 4; + return env->lladdr >> env->CP0_LLAddr_shift; } target_ulong helper_dmfc0_watchlo (uint32_t sel) @@ -1243,6 +1243,13 @@ void helper_mtc0_config2 (target_ulong arg1) env->CP0_Config2 = (env->CP0_Config2 & 0x8FFF0FFF); } +void helper_mtc0_lladdr (target_ulong arg1) +{ + target_long mask = env->CP0_LLAddr_rw_bitmask; + arg1 = arg1 << env->CP0_LLAddr_shift; + env->lladdr = (env->lladdr & ~mask) | (arg1 & mask); +} + void helper_mtc0_watchlo (target_ulong arg1, uint32_t sel) { /* Watch exceptions for instructions, data loads, data stores |