From 5da4a6a8c5271234fdc2ab53b80cf7a23952849b Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Tue, 6 Sep 2011 03:55:32 +0400 Subject: [PATCH] target-xtensa: implement JX/RET0/CALLX Group SNM0 (indirect jumps and calls). Signed-off-by: Max Filippov Signed-off-by: Blue Swirl --- target-xtensa/translate.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) 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*/ -- 2.11.0