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target-arm: Add AArch32 SIMD VCVTA, VCVTN, VCVTP and VCVTM

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Add support for the AArch32 Advanced SIMD VCVTA, VCVTN, VCVTP
and VCVTM instructions.

Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Will Newton 2014-01-31 14:47:35 +00:00 committed by Peter Maydell
parent c9975a8387
commit 901ad5259f
1 changed files with 52 additions and 1 deletions
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53
target-arm/translate.c
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@ -4778,6 +4778,14 @@ static const uint8_t neon_3r_sizes[] = {
#define NEON_2RM_VRINTM 45
#define NEON_2RM_VCVT_F32_F16 46
#define NEON_2RM_VRINTP 47
#define NEON_2RM_VCVTAU 48
#define NEON_2RM_VCVTAS 49
#define NEON_2RM_VCVTNU 50
#define NEON_2RM_VCVTNS 51
#define NEON_2RM_VCVTPU 52
#define NEON_2RM_VCVTPS 53
#define NEON_2RM_VCVTMU 54
#define NEON_2RM_VCVTMS 55
#define NEON_2RM_VRECPE 56
#define NEON_2RM_VRSQRTE 57
#define NEON_2RM_VRECPE_F 58
@ -4792,7 +4800,8 @@ static int neon_2rm_is_float_op(int op)
/* Return true if this neon 2reg-misc op is float-to-float */
return (op == NEON_2RM_VABS_F || op == NEON_2RM_VNEG_F ||
(op >= NEON_2RM_VRINTN && op <= NEON_2RM_VRINTZ) ||
op == NEON_2RM_VRINTM || op == NEON_2RM_VRINTP ||
op == NEON_2RM_VRINTM ||
(op >= NEON_2RM_VRINTP && op <= NEON_2RM_VCVTMS) ||
op >= NEON_2RM_VRECPE_F);
}
@ -4845,6 +4854,14 @@ static const uint8_t neon_2rm_sizes[] = {
[NEON_2RM_VRINTM] = 0x4,
[NEON_2RM_VCVT_F32_F16] = 0x2,
[NEON_2RM_VRINTP] = 0x4,
[NEON_2RM_VCVTAU] = 0x4,
[NEON_2RM_VCVTAS] = 0x4,
[NEON_2RM_VCVTNU] = 0x4,
[NEON_2RM_VCVTNS] = 0x4,
[NEON_2RM_VCVTPU] = 0x4,
[NEON_2RM_VCVTPS] = 0x4,
[NEON_2RM_VCVTMU] = 0x4,
[NEON_2RM_VCVTMS] = 0x4,
[NEON_2RM_VRECPE] = 0x4,
[NEON_2RM_VRSQRTE] = 0x4,
[NEON_2RM_VRECPE_F] = 0x4,
@ -6588,6 +6605,40 @@ static int disas_neon_data_insn(CPUARMState * env, DisasContext *s, uint32_t ins
tcg_temp_free_ptr(fpstatus);
break;
}
case NEON_2RM_VCVTAU:
case NEON_2RM_VCVTAS:
case NEON_2RM_VCVTNU:
case NEON_2RM_VCVTNS:
case NEON_2RM_VCVTPU:
case NEON_2RM_VCVTPS:
case NEON_2RM_VCVTMU:
case NEON_2RM_VCVTMS:
{
bool is_signed = !extract32(insn, 7, 1);
TCGv_ptr fpst = get_fpstatus_ptr(1);
TCGv_i32 tcg_rmode, tcg_shift;
int rmode = fp_decode_rm[extract32(insn, 8, 2)];
tcg_shift = tcg_const_i32(0);
tcg_rmode = tcg_const_i32(arm_rmode_to_sf(rmode));
gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode,
cpu_env);
if (is_signed) {
gen_helper_vfp_tosls(cpu_F0s, cpu_F0s,
tcg_shift, fpst);
} else {
gen_helper_vfp_touls(cpu_F0s, cpu_F0s,
tcg_shift, fpst);
}
gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode,
cpu_env);
tcg_temp_free_i32(tcg_rmode);
tcg_temp_free_i32(tcg_shift);
tcg_temp_free_ptr(fpst);
break;
}
case NEON_2RM_VRECPE:
gen_helper_recpe_u32(tmp, tmp, cpu_env);
break;