diff options
| author | Alexander Graf <agraf@suse.de> | 2014-01-04 22:15:51 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-01-08 19:07:21 +0000 |
| commit | 4d3da0f3aa5a5d0cbdb17ad49f1baf3cf1bd95a1 (patch) | |
| tree | dc2c9819769d8da803214764a2504024fa5a80e3 /target-arm | |
| parent | 5640ff62c9668651beae0a438540040fd9ee05b5 (diff) | |
target-arm: Give the FPSCR rounding modes names
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 <agraf@suse.de>
[WN: Commit message tweak, use names from ARM ARM.]
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/cpu.h | 9 | ||||
| -rw-r--r-- | 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 6fbbab2c7f..f1307eb488 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 d0b7c27749..9afec28a1f 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; } |