diff options
author | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
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committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
commit | 4d9367b76f71c6d938cf8201392abe4bfb1136cb (patch) | |
tree | 93a31afc3151c19e4906aed6748e842d8431fb02 /target-xtensa/op_helper.c | |
parent | 6b414d9fb86527118f3ddb81a1d1a684b3548a9d (diff) | |
parent | 8e65440d5f64435c003d32088757f702b86af9b4 (diff) |
* upstream-merge: (575 commits)
ssi: Add slave autoconnect helper
MAINTAINERS: Added maintainerships for SSI
xilinx_zynq: Added SPI controllers + flashes
xilinx_spips: Xilinx Zynq SPI cntrlr device model
petalogix-ml605: added SPI controller with n25q128
xilinx_spi: Initial impl. of Xilinx SPI controller
m25p80: Initial implementation of SPI flash device
hw: Added generic FIFO API.
stellaris: Removed SSI mux
qdev: allow multiple qdev_init_gpio_in() calls
ssi: Added create_slave_no_init()
ssi: Implemented CS behaviour
ssi: Support for multiple attached devices
qemu-barrier: Fix compilation on i386 hosts
target-sparc: Optimize conditionals using SUBCC
target-sparc: Fall through from not-taken trap
target-sparc: Cleanup "global" temporary allocation
target-sparc: Use movcond for FMOV*R
target-sparc: Use movcond in mulscc
target-sparc: Move taddcctv and tsubcctv out of line
...
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'target-xtensa/op_helper.c')
-rw-r--r-- | target-xtensa/op_helper.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/target-xtensa/op_helper.c b/target-xtensa/op_helper.c index 2659c0e00..ae0c09977 100644 --- a/target-xtensa/op_helper.c +++ b/target-xtensa/op_helper.c @@ -771,3 +771,137 @@ void HELPER(wsr_dbreakc)(CPUXtensaState *env, uint32_t i, uint32_t v) } env->sregs[DBREAKC + i] = v; } + +void HELPER(wur_fcr)(CPUXtensaState *env, uint32_t v) +{ + static const int rounding_mode[] = { + float_round_nearest_even, + float_round_to_zero, + float_round_up, + float_round_down, + }; + + env->uregs[FCR] = v & 0xfffff07f; + set_float_rounding_mode(rounding_mode[v & 3], &env->fp_status); +} + +float32 HELPER(abs_s)(float32 v) +{ + return float32_abs(v); +} + +float32 HELPER(neg_s)(float32 v) +{ + return float32_chs(v); +} + +float32 HELPER(add_s)(CPUXtensaState *env, float32 a, float32 b) +{ + return float32_add(a, b, &env->fp_status); +} + +float32 HELPER(sub_s)(CPUXtensaState *env, float32 a, float32 b) +{ + return float32_sub(a, b, &env->fp_status); +} + +float32 HELPER(mul_s)(CPUXtensaState *env, float32 a, float32 b) +{ + return float32_mul(a, b, &env->fp_status); +} + +float32 HELPER(madd_s)(CPUXtensaState *env, float32 a, float32 b, float32 c) +{ + return float32_muladd(b, c, a, 0, + &env->fp_status); +} + +float32 HELPER(msub_s)(CPUXtensaState *env, float32 a, float32 b, float32 c) +{ + return float32_muladd(b, c, a, float_muladd_negate_product, + &env->fp_status); +} + +uint32_t HELPER(ftoi)(float32 v, uint32_t rounding_mode, uint32_t scale) +{ + float_status fp_status = {0}; + + set_float_rounding_mode(rounding_mode, &fp_status); + return float32_to_int32( + float32_scalbn(v, scale, &fp_status), &fp_status); +} + +uint32_t HELPER(ftoui)(float32 v, uint32_t rounding_mode, uint32_t scale) +{ + float_status fp_status = {0}; + float32 res; + + set_float_rounding_mode(rounding_mode, &fp_status); + + res = float32_scalbn(v, scale, &fp_status); + + if (float32_is_neg(v) && !float32_is_any_nan(v)) { + return float32_to_int32(res, &fp_status); + } else { + return float32_to_uint32(res, &fp_status); + } +} + +float32 HELPER(itof)(CPUXtensaState *env, uint32_t v, uint32_t scale) +{ + return float32_scalbn(int32_to_float32(v, &env->fp_status), + (int32_t)scale, &env->fp_status); +} + +float32 HELPER(uitof)(CPUXtensaState *env, uint32_t v, uint32_t scale) +{ + return float32_scalbn(uint32_to_float32(v, &env->fp_status), + (int32_t)scale, &env->fp_status); +} + +static inline void set_br(CPUXtensaState *env, bool v, uint32_t br) +{ + if (v) { + env->sregs[BR] |= br; + } else { + env->sregs[BR] &= ~br; + } +} + +void HELPER(un_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_unordered_quiet(a, b, &env->fp_status), br); +} + +void HELPER(oeq_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_eq_quiet(a, b, &env->fp_status), br); +} + +void HELPER(ueq_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + int v = float32_compare_quiet(a, b, &env->fp_status); + set_br(env, v == float_relation_equal || v == float_relation_unordered, br); +} + +void HELPER(olt_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_lt_quiet(a, b, &env->fp_status), br); +} + +void HELPER(ult_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + int v = float32_compare_quiet(a, b, &env->fp_status); + set_br(env, v == float_relation_less || v == float_relation_unordered, br); +} + +void HELPER(ole_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_le_quiet(a, b, &env->fp_status), br); +} + +void HELPER(ule_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + int v = float32_compare_quiet(a, b, &env->fp_status); + set_br(env, v != float_relation_greater, br); +} |