From: Alexander Graf <ag...@suse.de> When setting rounding modes we currently just hardcode the numeric values for rounding modes in a big switch statement.
With AArch64 support coming, we will need to refer to these rounding modes at different places throughout the code though, so let's better give them names so we don't get confused by accident. Signed-off-by: Alexander Graf <ag...@suse.de> [WN: Commit message tweak, use names from ARM ARM.] Signed-off-by: Will Newton <will.new...@linaro.org> Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> Reviewed-by: Richard Henderson <r...@twiddle.net> --- target-arm/cpu.h | 9 +++++++++ target-arm/helper.c | 8 ++++---- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 7084a74..43ca572 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -487,6 +487,15 @@ static inline void vfp_set_fpcr(CPUARMState *env, uint32_t val) vfp_set_fpscr(env, new_fpscr); } +enum arm_fprounding { + FPROUNDING_TIEEVEN, + FPROUNDING_POSINF, + FPROUNDING_NEGINF, + FPROUNDING_ZERO, + FPROUNDING_TIEAWAY, + FPROUNDING_ODD +}; + enum arm_cpu_mode { ARM_CPU_MODE_USR = 0x10, ARM_CPU_MODE_FIQ = 0x11, diff --git a/target-arm/helper.c b/target-arm/helper.c index 74042b8..265675d 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -3815,16 +3815,16 @@ void HELPER(vfp_set_fpscr)(CPUARMState *env, uint32_t val) if (changed & (3 << 22)) { i = (val >> 22) & 3; switch (i) { - case 0: + case FPROUNDING_TIEEVEN: i = float_round_nearest_even; break; - case 1: + case FPROUNDING_POSINF: i = float_round_up; break; - case 2: + case FPROUNDING_NEGINF: i = float_round_down; break; - case 3: + case FPROUNDING_ZERO: i = float_round_to_zero; break; } -- 1.8.5