Add support for UDIV and SDIV in ARM mode. This is a new optional feature for A profile cores (Thumb mode has had UDIV and SDIV for M profile cores for some time).
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- target-arm/translate.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/target-arm/translate.c b/target-arm/translate.c index e99fc18..d3d7c5c 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -7639,6 +7639,25 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) store_reg(s, rn, tmp); } break; + case 1: + case 3: + /* SDIV, UDIV */ + if (!arm_feature(env, ARM_FEATURE_DIV)) { + goto illegal_op; + } + if (((insn >> 5) & 7) || (rd != 15)) { + goto illegal_op; + } + tmp = load_reg(s, rm); + tmp2 = load_reg(s, rs); + if (insn & (1 << 21)) { + gen_helper_udiv(tmp, tmp, tmp2); + } else { + gen_helper_sdiv(tmp, tmp, tmp2); + } + tcg_temp_free_i32(tmp2); + store_reg(s, rn, tmp); + break; default: goto illegal_op; } -- 1.7.1