diff options
Diffstat (limited to 'target/ppc/cpu.c')
| -rw-r--r-- | target/ppc/cpu.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/target/ppc/cpu.c b/target/ppc/cpu.c index de3004b33e..28011668e7 100644 --- a/target/ppc/cpu.c +++ b/target/ppc/cpu.c @@ -23,6 +23,12 @@ target_ulong cpu_read_xer(CPUPPCState *env) { + if (is_isa300(env)) { + return env->xer | (env->so << XER_SO) | + (env->ov << XER_OV) | (env->ca << XER_CA) | + (env->ov32 << XER_OV32) | (env->ca32 << XER_CA32); + } + return env->xer | (env->so << XER_SO) | (env->ov << XER_OV) | (env->ca << XER_CA); } @@ -32,5 +38,10 @@ void cpu_write_xer(CPUPPCState *env, target_ulong xer) env->so = (xer >> XER_SO) & 1; env->ov = (xer >> XER_OV) & 1; env->ca = (xer >> XER_CA) & 1; - env->xer = xer & ~((1u << XER_SO) | (1u << XER_OV) | (1u << XER_CA)); + /* write all the flags, while reading back check of isa300 */ + env->ov32 = (xer >> XER_OV32) & 1; + env->ca32 = (xer >> XER_CA32) & 1; + env->xer = xer & ~((1ul << XER_SO) | + (1ul << XER_OV) | (1ul << XER_CA) | + (1ul << XER_OV32) | (1ul << XER_CA32)); } |