diff options
| author | Richard Henderson <rth@twiddle.net> | 2013-02-19 23:52:13 -0800 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2013-02-23 17:25:30 +0000 |
| commit | da91a00f191fc70ea7d81d7476ef933c562e6fcd (patch) | |
| tree | c91ad3000fe069119379b11d9281e978b296fbbe /target-ppc/cpu.h | |
| parent | 23ad1d5d3c00cd07ab7aedc128565c6029802c30 (diff) | |
| download | qemu-da91a00f191fc70ea7d81d7476ef933c562e6fcd.tar.gz | |
target-ppc: Split out SO, OV, CA fields from XER
In preparation for more efficient setting of these fields.
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-ppc/cpu.h')
| -rw-r--r-- | target-ppc/cpu.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index 8c081dbec5..20f4565a1a 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -941,8 +941,11 @@ struct CPUPPCState { /* CFAR */ target_ulong cfar; #endif - /* XER */ + /* XER (with SO, OV, CA split out) */ target_ulong xer; + target_ulong so; + target_ulong ov; + target_ulong ca; /* Reservation address */ target_ulong reserve_addr; /* Reservation value */ @@ -1268,9 +1271,9 @@ static inline void cpu_clone_regs(CPUPPCState *env, target_ulong newsp) #define XER_CA 29 #define XER_CMP 8 #define XER_BC 0 -#define xer_so ((env->xer >> XER_SO) & 1) -#define xer_ov ((env->xer >> XER_OV) & 1) -#define xer_ca ((env->xer >> XER_CA) & 1) +#define xer_so (env->so) +#define xer_ov (env->ov) +#define xer_ca (env->ca) #define xer_cmp ((env->xer >> XER_CMP) & 0xFF) #define xer_bc ((env->xer >> XER_BC) & 0x7F) @@ -2087,6 +2090,19 @@ enum { /*****************************************************************************/ +static inline target_ulong cpu_read_xer(CPUPPCState *env) +{ + return env->xer | (env->so << XER_SO) | (env->ov << XER_OV) | (env->ca << XER_CA); +} + +static inline 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)); +} + static inline void cpu_get_tb_cpu_state(CPUPPCState *env, target_ulong *pc, target_ulong *cs_base, int *flags) { |