diff options
| author | Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com> | 2012-05-17 15:37:49 +1000 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2012-05-18 12:17:52 +0200 |
| commit | ace2e4dad70d23631a7944bff7255009234961ce (patch) | |
| tree | e53230f055e8e9f244b54c3da4a772b635bbd94a | |
| parent | 76ee152a86d5f2533443ce4d2be6fe253cfb3c45 (diff) | |
target-microblaze: impelemented swapx instructions
Implemented the swapb and swaph byte/halfword reversal instructions added
to microblaze v8.30
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
| -rw-r--r-- | target-microblaze/translate.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c index 742b3957c0..a362938e41 100644 --- a/target-microblaze/translate.c +++ b/target-microblaze/translate.c @@ -743,7 +743,7 @@ static void dec_bit(DisasContext *dc) unsigned int op; int mem_index = cpu_mmu_index(dc->env); - op = dc->ir & ((1 << 8) - 1); + op = dc->ir & ((1 << 9) - 1); switch (op) { case 0x21: /* src. */ @@ -825,6 +825,16 @@ static void dec_bit(DisasContext *dc) gen_helper_clz(cpu_R[dc->rd], cpu_R[dc->ra]); } break; + case 0x1e0: + /* swapb */ + LOG_DIS("swapb r%d r%d\n", dc->rd, dc->ra); + tcg_gen_bswap32_i32(cpu_R[dc->rd], cpu_R[dc->ra]); + break; + case 0x1e1: + /*swaph */ + LOG_DIS("swaph r%d r%d\n", dc->rd, dc->ra); + tcg_gen_rotri_i32(cpu_R[dc->rd], cpu_R[dc->ra], 16); + break; default: cpu_abort(dc->env, "unknown bit oc=%x op=%x rd=%d ra=%d rb=%d\n", dc->pc, op, dc->rd, dc->ra, dc->rb); |