diff options
Diffstat (limited to 'target-mips/op.c')
| -rw-r--r-- | target-mips/op.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/target-mips/op.c b/target-mips/op.c index b353644..b8c5ce8 100644 --- a/target-mips/op.c +++ b/target-mips/op.c @@ -1886,9 +1886,8 @@ void op_mttc0_status(void) void op_mtc0_intctl (void) { - /* vectored interrupts not implemented, timer on int 7, - no performance counters. */ - env->CP0_IntCtl |= T0 & 0x000002e0; + /* vectored interrupts not implemented, no performance counters. */ + env->CP0_IntCtl = (env->CP0_IntCtl & ~0x000002e0) | (T0 & 0x000002e0); RETURN(); } @@ -1908,12 +1907,20 @@ void op_mtc0_srsmap (void) void op_mtc0_cause (void) { uint32_t mask = 0x00C00300; + uint32_t old = env->CP0_Cause; if (env->insn_flags & ISA_MIPS32R2) mask |= 1 << CP0Ca_DC; env->CP0_Cause = (env->CP0_Cause & ~mask) | (T0 & mask); + if ((old ^ env->CP0_Cause) & (1 << CP0Ca_DC)) { + if (env->CP0_Cause & (1 << CP0Ca_DC)) + CALL_FROM_TB1(cpu_mips_stop_count, env); + else + CALL_FROM_TB1(cpu_mips_start_count, env); + } + /* Handle the software interrupt as an hardware one, as they are very similar */ if (T0 & CP0Ca_IP_mask) { |