helper_set_rounding_mode() is responsible for SIGILL, and "round to odd"
should be an interface private to translation, so add a new independent
helper_set_rod_rounding_mode().
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <
20211210075704.23951-64-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
set_float_rounding_mode(softrm, &env->fp_status);
}
+void helper_set_rod_rounding_mode(CPURISCVState *env)
+{
+ set_float_rounding_mode(float_round_to_odd, &env->fp_status);
+}
+
static uint64_t do_fmadd_h(CPURISCVState *env, uint64_t rs1, uint64_t rs2,
uint64_t rs3, int flags)
{
/* Floating Point - rounding mode */
DEF_HELPER_FLAGS_2(set_rounding_mode, TCG_CALL_NO_WG, void, env, i32)
+DEF_HELPER_FLAGS_1(set_rod_rounding_mode, TCG_CALL_NO_WG, void, env)
/* Floating Point - fused */
DEF_HELPER_FLAGS_4(fmadd_s, TCG_CALL_NO_RWG, i64, env, i64, i64, i64)
RISCV_FRM_RUP = 3, /* Round Up */
RISCV_FRM_RMM = 4, /* Round to Nearest, ties to Max Magnitude */
RISCV_FRM_DYN = 7, /* Dynamic rounding mode */
+ RISCV_FRM_ROD = 8, /* Round to Odd */
};
static inline uint64_t nanbox_s(float32 f)
#include "exec/log.h"
#include "instmap.h"
+#include "internals.h"
/* global register indices */
static TCGv cpu_gpr[32], cpu_pc, cpu_vl;
return;
}
ctx->frm = rm;
+
+ if (rm == RISCV_FRM_ROD) {
+ gen_helper_set_rod_rounding_mode(cpu_env);
+ return;
+ }
+
gen_helper_set_rounding_mode(cpu_env, tcg_constant_i32(rm));
}