diff options
| -rw-r--r-- | target-unicore32/translate.c | 83 |
1 files changed, 11 insertions, 72 deletions
diff --git a/target-unicore32/translate.c b/target-unicore32/translate.c index f4498bcb14..d5039e2093 100644 --- a/target-unicore32/translate.c +++ b/target-unicore32/translate.c @@ -267,37 +267,6 @@ static void gen_exception(int excp) dead_tmp(tmp); } -/* FIXME: Most targets have native widening multiplication. - It would be good to use that instead of a full wide multiply. */ -/* 32x32->64 multiply. Marks inputs as dead. */ -static TCGv_i64 gen_mulu_i64_i32(TCGv a, TCGv b) -{ - TCGv_i64 tmp1 = tcg_temp_new_i64(); - TCGv_i64 tmp2 = tcg_temp_new_i64(); - - tcg_gen_extu_i32_i64(tmp1, a); - dead_tmp(a); - tcg_gen_extu_i32_i64(tmp2, b); - dead_tmp(b); - tcg_gen_mul_i64(tmp1, tmp1, tmp2); - tcg_temp_free_i64(tmp2); - return tmp1; -} - -static TCGv_i64 gen_muls_i64_i32(TCGv a, TCGv b) -{ - TCGv_i64 tmp1 = tcg_temp_new_i64(); - TCGv_i64 tmp2 = tcg_temp_new_i64(); - - tcg_gen_ext_i32_i64(tmp1, a); - dead_tmp(a); - tcg_gen_ext_i32_i64(tmp2, b); - dead_tmp(b); - tcg_gen_mul_i64(tmp1, tmp1, tmp2); - tcg_temp_free_i64(tmp2); - return tmp1; -} - #define gen_set_CF(var) tcg_gen_st_i32(var, cpu_env, offsetof(CPUUniCore32State, CF)) /* Set CF to the top bit of var. */ @@ -1219,38 +1188,6 @@ static void disas_coproc_insn(CPUUniCore32State *env, DisasContext *s, } } - -/* Store a 64-bit value to a register pair. Clobbers val. */ -static void gen_storeq_reg(DisasContext *s, int rlow, int rhigh, TCGv_i64 val) -{ - TCGv tmp; - tmp = new_tmp(); - tcg_gen_trunc_i64_i32(tmp, val); - store_reg(s, rlow, tmp); - tmp = new_tmp(); - tcg_gen_shri_i64(val, val, 32); - tcg_gen_trunc_i64_i32(tmp, val); - store_reg(s, rhigh, tmp); -} - -/* load and add a 64-bit value from a register pair. */ -static void gen_addq(DisasContext *s, TCGv_i64 val, int rlow, int rhigh) -{ - TCGv_i64 tmp; - TCGv tmpl; - TCGv tmph; - - /* Load 64-bit value rd:rn. */ - tmpl = load_reg(s, rlow); - tmph = load_reg(s, rhigh); - tmp = tcg_temp_new_i64(); - tcg_gen_concat_i32_i64(tmp, tmpl, tmph); - dead_tmp(tmpl); - dead_tmp(tmph); - tcg_gen_add_i64(val, val, tmp); - tcg_temp_free_i64(tmp); -} - /* data processing instructions */ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn) { @@ -1445,24 +1382,26 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn) /* multiply */ static void do_mult(CPUUniCore32State *env, DisasContext *s, uint32_t insn) { - TCGv tmp; - TCGv tmp2; - TCGv_i64 tmp64; + TCGv tmp, tmp2, tmp3, tmp4; if (UCOP_SET(27)) { /* 64 bit mul */ tmp = load_reg(s, UCOP_REG_M); tmp2 = load_reg(s, UCOP_REG_N); if (UCOP_SET(26)) { - tmp64 = gen_muls_i64_i32(tmp, tmp2); + tcg_gen_muls2_i32(tmp, tmp2, tmp, tmp2); } else { - tmp64 = gen_mulu_i64_i32(tmp, tmp2); + tcg_gen_mulu2_i32(tmp, tmp2, tmp, tmp2); } if (UCOP_SET(25)) { /* mult accumulate */ - gen_addq(s, tmp64, UCOP_REG_LO, UCOP_REG_HI); - } - gen_storeq_reg(s, UCOP_REG_LO, UCOP_REG_HI, tmp64); - tcg_temp_free_i64(tmp64); + tmp3 = load_reg(s, UCOP_REG_LO); + tmp4 = load_reg(s, UCOP_REG_HI); + tcg_gen_add2_i32(tmp, tmp2, tmp, tmp2, tmp3, tmp4); + dead_tmp(tmp3); + dead_tmp(tmp4); + } + store_reg(s, UCOP_REG_LO, tmp); + store_reg(s, UCOP_REG_HI, tmp2); } else { /* 32 bit mul */ tmp = load_reg(s, UCOP_REG_M); |