diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2011-09-06 03:55:32 +0400 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2011-09-10 16:57:37 +0000 |
| commit | 5da4a6a8c5271234fdc2ab53b80cf7a23952849b (patch) | |
| tree | 25c14d405e59d4d1a7a69a0ff9913bc91769f018 /target-xtensa | |
| parent | bd57fb91ae15acea8c17459556220d6454a1e389 (diff) | |
target-xtensa: implement JX/RET0/CALLX
Group SNM0 (indirect jumps and calls).
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-xtensa')
| -rw-r--r-- | target-xtensa/translate.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index 9e26a655e8..78fffc5714 100644 --- a/target-xtensa/translate.c +++ b/target-xtensa/translate.c @@ -248,6 +248,49 @@ static void disas_xtensa_insn(DisasContext *dc) switch (RRR_R) { case 0: /*SNM0*/ + switch (CALLX_M) { + case 0: /*ILL*/ + break; + + case 1: /*reserved*/ + break; + + case 2: /*JR*/ + switch (CALLX_N) { + case 0: /*RET*/ + case 2: /*JX*/ + gen_jump(dc, cpu_R[CALLX_S]); + break; + + case 1: /*RETWw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + break; + + case 3: /*reserved*/ + break; + } + break; + + case 3: /*CALLX*/ + switch (CALLX_N) { + case 0: /*CALLX0*/ + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); + tcg_gen_movi_i32(cpu_R[0], dc->next_pc); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 1: /*CALLX4w*/ + case 2: /*CALLX8w*/ + case 3: /*CALLX12w*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + break; + } + break; + } break; case 1: /*MOVSPw*/ |