aboutsummaryrefslogtreecommitdiff
path: root/target/ppc/translate.c
diff options
context:
space:
mode:
Diffstat (limited to 'target/ppc/translate.c')
-rw-r--r--target/ppc/translate.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index b09e16ff76..be7378b9ce 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -71,7 +71,7 @@ static TCGv cpu_lr;
#if defined(TARGET_PPC64)
static TCGv cpu_cfar;
#endif
-static TCGv cpu_xer, cpu_so, cpu_ov, cpu_ca;
+static TCGv cpu_xer, cpu_so, cpu_ov, cpu_ca, cpu_ov32, cpu_ca32;
static TCGv cpu_reserve;
static TCGv cpu_fpscr;
static TCGv_i32 cpu_access_type;
@@ -173,6 +173,10 @@ void ppc_translate_init(void)
offsetof(CPUPPCState, ov), "OV");
cpu_ca = tcg_global_mem_new(cpu_env,
offsetof(CPUPPCState, ca), "CA");
+ cpu_ov32 = tcg_global_mem_new(cpu_env,
+ offsetof(CPUPPCState, ov32), "OV32");
+ cpu_ca32 = tcg_global_mem_new(cpu_env,
+ offsetof(CPUPPCState, ca32), "CA32");
cpu_reserve = tcg_global_mem_new(cpu_env,
offsetof(CPUPPCState, reserve_addr),
@@ -3703,7 +3707,7 @@ static void gen_tdi(DisasContext *ctx)
/*** Processor control ***/
-static void gen_read_xer(TCGv dst)
+static void gen_read_xer(DisasContext *ctx, TCGv dst)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
@@ -3715,6 +3719,12 @@ static void gen_read_xer(TCGv dst)
tcg_gen_or_tl(t0, t0, t1);
tcg_gen_or_tl(dst, dst, t2);
tcg_gen_or_tl(dst, dst, t0);
+ if (is_isa300(ctx)) {
+ tcg_gen_shli_tl(t0, cpu_ov32, XER_OV32);
+ tcg_gen_or_tl(dst, dst, t0);
+ tcg_gen_shli_tl(t0, cpu_ca32, XER_CA32);
+ tcg_gen_or_tl(dst, dst, t0);
+ }
tcg_temp_free(t0);
tcg_temp_free(t1);
tcg_temp_free(t2);
@@ -3722,8 +3732,13 @@ static void gen_read_xer(TCGv dst)
static void gen_write_xer(TCGv src)
{
+ /* Write all flags, while reading back check for isa300 */
tcg_gen_andi_tl(cpu_xer, src,
- ~((1u << XER_SO) | (1u << XER_OV) | (1u << XER_CA)));
+ ~((1u << XER_SO) |
+ (1u << XER_OV) | (1u << XER_OV32) |
+ (1u << XER_CA) | (1u << XER_CA32)));
+ tcg_gen_extract_tl(cpu_ov32, src, XER_OV32, 1);
+ tcg_gen_extract_tl(cpu_ca32, src, XER_CA32, 1);
tcg_gen_extract_tl(cpu_so, src, XER_SO, 1);
tcg_gen_extract_tl(cpu_ov, src, XER_OV, 1);
tcg_gen_extract_tl(cpu_ca, src, XER_CA, 1);