diff options
| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2017-02-27 10:27:59 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-03-01 11:23:39 +1100 |
| commit | 61aa9a697a1ec9b102e86cb7ea96876e6f20afe3 (patch) | |
| tree | 4d3af66d18fc79c1770d2c263719e20150333977 /target/ppc/translate.c | |
| parent | 1480d71cbe811d453b393e3b342f102535fe1202 (diff) | |
| download | qemu-61aa9a697a1ec9b102e86cb7ea96876e6f20afe3.tar.gz | |
target/ppc: add ov32 flag for multiply low insns
For Multiply Word:
SO, OV, and OV32 bits reflects overflow of the 32-bit result
For Multiply DoubleWord:
SO, OV, and OV32 bits reflects overflow of the 64-bit result
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/translate.c')
| -rw-r--r-- | target/ppc/translate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target/ppc/translate.c b/target/ppc/translate.c index d4d9941f08..ccf3bff817 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -1285,6 +1285,9 @@ static void gen_mullwo(DisasContext *ctx) tcg_gen_sari_i32(t0, t0, 31); tcg_gen_setcond_i32(TCG_COND_NE, t0, t0, t1); tcg_gen_extu_i32_tl(cpu_ov, t0); + if (is_isa300(ctx)) { + tcg_gen_mov_tl(cpu_ov32, cpu_ov); + } tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); tcg_temp_free_i32(t0); @@ -1346,6 +1349,9 @@ static void gen_mulldo(DisasContext *ctx) tcg_gen_sari_i64(t0, t0, 63); tcg_gen_setcond_i64(TCG_COND_NE, cpu_ov, t0, t1); + if (is_isa300(ctx)) { + tcg_gen_mov_tl(cpu_ov32, cpu_ov); + } tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); tcg_temp_free_i64(t0); |