From ace2e4dad70d23631a7944bff7255009234961ce Mon Sep 17 00:00:00 2001 From: "Peter A. G. Crosthwaite" Date: Thu, 17 May 2012 15:37:49 +1000 Subject: [PATCH] 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 Signed-off-by: Edgar E. Iglesias --- target-microblaze/translate.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) 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);