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2ec0dcf034
Implement the MVE "VCVT (between floating-point and integer)" insn. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2041 lines
64 KiB
C
2041 lines
64 KiB
C
/*
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* ARM translation: M-profile MVE instructions
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*
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* Copyright (c) 2021 Linaro, Ltd.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "tcg/tcg-op.h"
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#include "tcg/tcg-op-gvec.h"
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#include "exec/exec-all.h"
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#include "exec/gen-icount.h"
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#include "translate.h"
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#include "translate-a32.h"
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static inline int vidup_imm(DisasContext *s, int x)
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{
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return 1 << x;
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}
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/* Include the generated decoder */
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#include "decode-mve.c.inc"
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typedef void MVEGenLdStFn(TCGv_ptr, TCGv_ptr, TCGv_i32);
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typedef void MVEGenLdStSGFn(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i32);
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typedef void MVEGenLdStIlFn(TCGv_ptr, TCGv_i32, TCGv_i32);
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typedef void MVEGenOneOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr);
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typedef void MVEGenTwoOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_ptr);
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typedef void MVEGenTwoOpScalarFn(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i32);
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typedef void MVEGenTwoOpShiftFn(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i32);
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typedef void MVEGenLongDualAccOpFn(TCGv_i64, TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i64);
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typedef void MVEGenVADDVFn(TCGv_i32, TCGv_ptr, TCGv_ptr, TCGv_i32);
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typedef void MVEGenOneOpImmFn(TCGv_ptr, TCGv_ptr, TCGv_i64);
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typedef void MVEGenVIDUPFn(TCGv_i32, TCGv_ptr, TCGv_ptr, TCGv_i32, TCGv_i32);
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typedef void MVEGenVIWDUPFn(TCGv_i32, TCGv_ptr, TCGv_ptr, TCGv_i32, TCGv_i32, TCGv_i32);
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typedef void MVEGenCmpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr);
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typedef void MVEGenScalarCmpFn(TCGv_ptr, TCGv_ptr, TCGv_i32);
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typedef void MVEGenVABAVFn(TCGv_i32, TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i32);
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typedef void MVEGenDualAccOpFn(TCGv_i32, TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i32);
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/* Return the offset of a Qn register (same semantics as aa32_vfp_qreg()) */
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static inline long mve_qreg_offset(unsigned reg)
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{
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return offsetof(CPUARMState, vfp.zregs[reg].d[0]);
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}
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static TCGv_ptr mve_qreg_ptr(unsigned reg)
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{
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TCGv_ptr ret = tcg_temp_new_ptr();
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tcg_gen_addi_ptr(ret, cpu_env, mve_qreg_offset(reg));
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return ret;
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}
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static bool mve_check_qreg_bank(DisasContext *s, int qmask)
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{
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/*
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* Check whether Qregs are in range. For v8.1M only Q0..Q7
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* are supported, see VFPSmallRegisterBank().
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*/
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return qmask < 8;
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}
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bool mve_eci_check(DisasContext *s)
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{
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/*
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* This is a beatwise insn: check that ECI is valid (not a
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* reserved value) and note that we are handling it.
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* Return true if OK, false if we generated an exception.
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*/
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s->eci_handled = true;
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switch (s->eci) {
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case ECI_NONE:
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case ECI_A0:
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case ECI_A0A1:
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case ECI_A0A1A2:
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case ECI_A0A1A2B0:
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return true;
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default:
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/* Reserved value: INVSTATE UsageFault */
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gen_exception_insn(s, s->pc_curr, EXCP_INVSTATE, syn_uncategorized(),
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default_exception_el(s));
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return false;
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}
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}
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void mve_update_eci(DisasContext *s)
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{
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/*
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* The helper function will always update the CPUState field,
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* so we only need to update the DisasContext field.
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*/
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if (s->eci) {
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s->eci = (s->eci == ECI_A0A1A2B0) ? ECI_A0 : ECI_NONE;
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}
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}
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void mve_update_and_store_eci(DisasContext *s)
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{
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/*
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* For insns which don't call a helper function that will call
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* mve_advance_vpt(), this version updates s->eci and also stores
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* it out to the CPUState field.
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*/
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if (s->eci) {
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mve_update_eci(s);
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store_cpu_field(tcg_constant_i32(s->eci << 4), condexec_bits);
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}
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}
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static bool mve_skip_first_beat(DisasContext *s)
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{
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/* Return true if PSR.ECI says we must skip the first beat of this insn */
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switch (s->eci) {
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case ECI_NONE:
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return false;
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case ECI_A0:
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case ECI_A0A1:
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case ECI_A0A1A2:
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case ECI_A0A1A2B0:
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return true;
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default:
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g_assert_not_reached();
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}
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}
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static bool do_ldst(DisasContext *s, arg_VLDR_VSTR *a, MVEGenLdStFn *fn,
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unsigned msize)
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{
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TCGv_i32 addr;
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uint32_t offset;
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TCGv_ptr qreg;
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if (!dc_isar_feature(aa32_mve, s) ||
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!mve_check_qreg_bank(s, a->qd) ||
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!fn) {
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return false;
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}
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/* CONSTRAINED UNPREDICTABLE: we choose to UNDEF */
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if (a->rn == 15 || (a->rn == 13 && a->w)) {
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return false;
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}
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if (!mve_eci_check(s) || !vfp_access_check(s)) {
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return true;
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}
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offset = a->imm << msize;
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if (!a->a) {
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offset = -offset;
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}
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addr = load_reg(s, a->rn);
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if (a->p) {
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tcg_gen_addi_i32(addr, addr, offset);
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}
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qreg = mve_qreg_ptr(a->qd);
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fn(cpu_env, qreg, addr);
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tcg_temp_free_ptr(qreg);
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/*
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* Writeback always happens after the last beat of the insn,
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* regardless of predication
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*/
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if (a->w) {
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if (!a->p) {
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tcg_gen_addi_i32(addr, addr, offset);
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}
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store_reg(s, a->rn, addr);
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} else {
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tcg_temp_free_i32(addr);
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}
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mve_update_eci(s);
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return true;
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}
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static bool trans_VLDR_VSTR(DisasContext *s, arg_VLDR_VSTR *a)
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{
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static MVEGenLdStFn * const ldstfns[4][2] = {
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{ gen_helper_mve_vstrb, gen_helper_mve_vldrb },
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{ gen_helper_mve_vstrh, gen_helper_mve_vldrh },
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{ gen_helper_mve_vstrw, gen_helper_mve_vldrw },
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{ NULL, NULL }
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};
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return do_ldst(s, a, ldstfns[a->size][a->l], a->size);
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}
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#define DO_VLDST_WIDE_NARROW(OP, SLD, ULD, ST, MSIZE) \
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static bool trans_##OP(DisasContext *s, arg_VLDR_VSTR *a) \
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{ \
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static MVEGenLdStFn * const ldstfns[2][2] = { \
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{ gen_helper_mve_##ST, gen_helper_mve_##SLD }, \
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{ NULL, gen_helper_mve_##ULD }, \
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}; \
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return do_ldst(s, a, ldstfns[a->u][a->l], MSIZE); \
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}
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DO_VLDST_WIDE_NARROW(VLDSTB_H, vldrb_sh, vldrb_uh, vstrb_h, MO_8)
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DO_VLDST_WIDE_NARROW(VLDSTB_W, vldrb_sw, vldrb_uw, vstrb_w, MO_8)
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DO_VLDST_WIDE_NARROW(VLDSTH_W, vldrh_sw, vldrh_uw, vstrh_w, MO_16)
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static bool do_ldst_sg(DisasContext *s, arg_vldst_sg *a, MVEGenLdStSGFn fn)
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{
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TCGv_i32 addr;
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TCGv_ptr qd, qm;
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if (!dc_isar_feature(aa32_mve, s) ||
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!mve_check_qreg_bank(s, a->qd | a->qm) ||
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!fn || a->rn == 15) {
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/* Rn case is UNPREDICTABLE */
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return false;
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}
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if (!mve_eci_check(s) || !vfp_access_check(s)) {
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return true;
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}
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addr = load_reg(s, a->rn);
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qd = mve_qreg_ptr(a->qd);
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qm = mve_qreg_ptr(a->qm);
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fn(cpu_env, qd, qm, addr);
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tcg_temp_free_ptr(qd);
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tcg_temp_free_ptr(qm);
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tcg_temp_free_i32(addr);
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mve_update_eci(s);
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return true;
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}
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/*
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* The naming scheme here is "vldrb_sg_sh == in-memory byte loads
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* signextended to halfword elements in register". _os_ indicates that
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* the offsets in Qm should be scaled by the element size.
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*/
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/* This macro is just to make the arrays more compact in these functions */
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#define F(N) gen_helper_mve_##N
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/* VLDRB/VSTRB (ie msize 1) with OS=1 is UNPREDICTABLE; we UNDEF */
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static bool trans_VLDR_S_sg(DisasContext *s, arg_vldst_sg *a)
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{
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static MVEGenLdStSGFn * const fns[2][4][4] = { {
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{ NULL, F(vldrb_sg_sh), F(vldrb_sg_sw), NULL },
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{ NULL, NULL, F(vldrh_sg_sw), NULL },
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{ NULL, NULL, NULL, NULL },
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{ NULL, NULL, NULL, NULL }
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}, {
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{ NULL, NULL, NULL, NULL },
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{ NULL, NULL, F(vldrh_sg_os_sw), NULL },
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{ NULL, NULL, NULL, NULL },
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{ NULL, NULL, NULL, NULL }
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}
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};
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if (a->qd == a->qm) {
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return false; /* UNPREDICTABLE */
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}
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return do_ldst_sg(s, a, fns[a->os][a->msize][a->size]);
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}
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static bool trans_VLDR_U_sg(DisasContext *s, arg_vldst_sg *a)
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{
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static MVEGenLdStSGFn * const fns[2][4][4] = { {
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{ F(vldrb_sg_ub), F(vldrb_sg_uh), F(vldrb_sg_uw), NULL },
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{ NULL, F(vldrh_sg_uh), F(vldrh_sg_uw), NULL },
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{ NULL, NULL, F(vldrw_sg_uw), NULL },
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{ NULL, NULL, NULL, F(vldrd_sg_ud) }
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}, {
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{ NULL, NULL, NULL, NULL },
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{ NULL, F(vldrh_sg_os_uh), F(vldrh_sg_os_uw), NULL },
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{ NULL, NULL, F(vldrw_sg_os_uw), NULL },
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{ NULL, NULL, NULL, F(vldrd_sg_os_ud) }
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}
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};
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if (a->qd == a->qm) {
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return false; /* UNPREDICTABLE */
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}
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return do_ldst_sg(s, a, fns[a->os][a->msize][a->size]);
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}
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static bool trans_VSTR_sg(DisasContext *s, arg_vldst_sg *a)
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{
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static MVEGenLdStSGFn * const fns[2][4][4] = { {
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{ F(vstrb_sg_ub), F(vstrb_sg_uh), F(vstrb_sg_uw), NULL },
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{ NULL, F(vstrh_sg_uh), F(vstrh_sg_uw), NULL },
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{ NULL, NULL, F(vstrw_sg_uw), NULL },
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{ NULL, NULL, NULL, F(vstrd_sg_ud) }
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}, {
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{ NULL, NULL, NULL, NULL },
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{ NULL, F(vstrh_sg_os_uh), F(vstrh_sg_os_uw), NULL },
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{ NULL, NULL, F(vstrw_sg_os_uw), NULL },
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{ NULL, NULL, NULL, F(vstrd_sg_os_ud) }
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}
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};
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return do_ldst_sg(s, a, fns[a->os][a->msize][a->size]);
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}
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#undef F
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static bool do_ldst_sg_imm(DisasContext *s, arg_vldst_sg_imm *a,
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MVEGenLdStSGFn *fn, unsigned msize)
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{
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uint32_t offset;
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TCGv_ptr qd, qm;
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if (!dc_isar_feature(aa32_mve, s) ||
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!mve_check_qreg_bank(s, a->qd | a->qm) ||
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!fn) {
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return false;
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}
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if (!mve_eci_check(s) || !vfp_access_check(s)) {
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return true;
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}
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offset = a->imm << msize;
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if (!a->a) {
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offset = -offset;
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}
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qd = mve_qreg_ptr(a->qd);
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qm = mve_qreg_ptr(a->qm);
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fn(cpu_env, qd, qm, tcg_constant_i32(offset));
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tcg_temp_free_ptr(qd);
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tcg_temp_free_ptr(qm);
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mve_update_eci(s);
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return true;
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}
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static bool trans_VLDRW_sg_imm(DisasContext *s, arg_vldst_sg_imm *a)
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{
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static MVEGenLdStSGFn * const fns[] = {
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gen_helper_mve_vldrw_sg_uw,
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gen_helper_mve_vldrw_sg_wb_uw,
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};
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if (a->qd == a->qm) {
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return false; /* UNPREDICTABLE */
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}
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return do_ldst_sg_imm(s, a, fns[a->w], MO_32);
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}
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static bool trans_VLDRD_sg_imm(DisasContext *s, arg_vldst_sg_imm *a)
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{
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static MVEGenLdStSGFn * const fns[] = {
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gen_helper_mve_vldrd_sg_ud,
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gen_helper_mve_vldrd_sg_wb_ud,
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};
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if (a->qd == a->qm) {
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return false; /* UNPREDICTABLE */
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}
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return do_ldst_sg_imm(s, a, fns[a->w], MO_64);
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}
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static bool trans_VSTRW_sg_imm(DisasContext *s, arg_vldst_sg_imm *a)
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{
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static MVEGenLdStSGFn * const fns[] = {
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gen_helper_mve_vstrw_sg_uw,
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gen_helper_mve_vstrw_sg_wb_uw,
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};
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return do_ldst_sg_imm(s, a, fns[a->w], MO_32);
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}
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static bool trans_VSTRD_sg_imm(DisasContext *s, arg_vldst_sg_imm *a)
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{
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static MVEGenLdStSGFn * const fns[] = {
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gen_helper_mve_vstrd_sg_ud,
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gen_helper_mve_vstrd_sg_wb_ud,
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};
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return do_ldst_sg_imm(s, a, fns[a->w], MO_64);
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}
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static bool do_vldst_il(DisasContext *s, arg_vldst_il *a, MVEGenLdStIlFn *fn,
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int addrinc)
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{
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TCGv_i32 rn;
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if (!dc_isar_feature(aa32_mve, s) ||
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!mve_check_qreg_bank(s, a->qd) ||
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!fn || (a->rn == 13 && a->w) || a->rn == 15) {
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/* Variously UNPREDICTABLE or UNDEF or related-encoding */
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return false;
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}
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if (!mve_eci_check(s) || !vfp_access_check(s)) {
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return true;
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}
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rn = load_reg(s, a->rn);
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/*
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* We pass the index of Qd, not a pointer, because the helper must
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* access multiple Q registers starting at Qd and working up.
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*/
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fn(cpu_env, tcg_constant_i32(a->qd), rn);
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if (a->w) {
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tcg_gen_addi_i32(rn, rn, addrinc);
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store_reg(s, a->rn, rn);
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} else {
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tcg_temp_free_i32(rn);
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}
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mve_update_and_store_eci(s);
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return true;
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}
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/* This macro is just to make the arrays more compact in these functions */
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#define F(N) gen_helper_mve_##N
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static bool trans_VLD2(DisasContext *s, arg_vldst_il *a)
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{
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static MVEGenLdStIlFn * const fns[4][4] = {
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{ F(vld20b), F(vld20h), F(vld20w), NULL, },
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{ F(vld21b), F(vld21h), F(vld21w), NULL, },
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{ NULL, NULL, NULL, NULL },
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{ NULL, NULL, NULL, NULL },
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};
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if (a->qd > 6) {
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return false;
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}
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return do_vldst_il(s, a, fns[a->pat][a->size], 32);
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}
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static bool trans_VLD4(DisasContext *s, arg_vldst_il *a)
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{
|
|
static MVEGenLdStIlFn * const fns[4][4] = {
|
|
{ F(vld40b), F(vld40h), F(vld40w), NULL, },
|
|
{ F(vld41b), F(vld41h), F(vld41w), NULL, },
|
|
{ F(vld42b), F(vld42h), F(vld42w), NULL, },
|
|
{ F(vld43b), F(vld43h), F(vld43w), NULL, },
|
|
};
|
|
if (a->qd > 4) {
|
|
return false;
|
|
}
|
|
return do_vldst_il(s, a, fns[a->pat][a->size], 64);
|
|
}
|
|
|
|
static bool trans_VST2(DisasContext *s, arg_vldst_il *a)
|
|
{
|
|
static MVEGenLdStIlFn * const fns[4][4] = {
|
|
{ F(vst20b), F(vst20h), F(vst20w), NULL, },
|
|
{ F(vst21b), F(vst21h), F(vst21w), NULL, },
|
|
{ NULL, NULL, NULL, NULL },
|
|
{ NULL, NULL, NULL, NULL },
|
|
};
|
|
if (a->qd > 6) {
|
|
return false;
|
|
}
|
|
return do_vldst_il(s, a, fns[a->pat][a->size], 32);
|
|
}
|
|
|
|
static bool trans_VST4(DisasContext *s, arg_vldst_il *a)
|
|
{
|
|
static MVEGenLdStIlFn * const fns[4][4] = {
|
|
{ F(vst40b), F(vst40h), F(vst40w), NULL, },
|
|
{ F(vst41b), F(vst41h), F(vst41w), NULL, },
|
|
{ F(vst42b), F(vst42h), F(vst42w), NULL, },
|
|
{ F(vst43b), F(vst43h), F(vst43w), NULL, },
|
|
};
|
|
if (a->qd > 4) {
|
|
return false;
|
|
}
|
|
return do_vldst_il(s, a, fns[a->pat][a->size], 64);
|
|
}
|
|
|
|
#undef F
|
|
|
|
static bool trans_VDUP(DisasContext *s, arg_VDUP *a)
|
|
{
|
|
TCGv_ptr qd;
|
|
TCGv_i32 rt;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qd)) {
|
|
return false;
|
|
}
|
|
if (a->rt == 13 || a->rt == 15) {
|
|
/* UNPREDICTABLE; we choose to UNDEF */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
rt = load_reg(s, a->rt);
|
|
tcg_gen_dup_i32(a->size, rt, rt);
|
|
gen_helper_mve_vdup(cpu_env, qd, rt);
|
|
tcg_temp_free_ptr(qd);
|
|
tcg_temp_free_i32(rt);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool do_1op(DisasContext *s, arg_1op *a, MVEGenOneOpFn fn)
|
|
{
|
|
TCGv_ptr qd, qm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qd | a->qm) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
qm = mve_qreg_ptr(a->qm);
|
|
fn(cpu_env, qd, qm);
|
|
tcg_temp_free_ptr(qd);
|
|
tcg_temp_free_ptr(qm);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_1OP(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_1op *a) \
|
|
{ \
|
|
static MVEGenOneOpFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_1op(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_1OP(VCLZ, vclz)
|
|
DO_1OP(VCLS, vcls)
|
|
DO_1OP(VABS, vabs)
|
|
DO_1OP(VNEG, vneg)
|
|
DO_1OP(VQABS, vqabs)
|
|
DO_1OP(VQNEG, vqneg)
|
|
DO_1OP(VMAXA, vmaxa)
|
|
DO_1OP(VMINA, vmina)
|
|
|
|
/*
|
|
* For simple float/int conversions we use the fixed-point
|
|
* conversion helpers with a zero shift count
|
|
*/
|
|
#define DO_VCVT(INSN, HFN, SFN) \
|
|
static void gen_##INSN##h(TCGv_ptr env, TCGv_ptr qd, TCGv_ptr qm) \
|
|
{ \
|
|
gen_helper_mve_##HFN(env, qd, qm, tcg_constant_i32(0)); \
|
|
} \
|
|
static void gen_##INSN##s(TCGv_ptr env, TCGv_ptr qd, TCGv_ptr qm) \
|
|
{ \
|
|
gen_helper_mve_##SFN(env, qd, qm, tcg_constant_i32(0)); \
|
|
} \
|
|
static bool trans_##INSN(DisasContext *s, arg_1op *a) \
|
|
{ \
|
|
static MVEGenOneOpFn * const fns[] = { \
|
|
NULL, \
|
|
gen_##INSN##h, \
|
|
gen_##INSN##s, \
|
|
NULL, \
|
|
}; \
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_1op(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_VCVT(VCVT_SF, vcvt_sh, vcvt_sf)
|
|
DO_VCVT(VCVT_UF, vcvt_uh, vcvt_uf)
|
|
DO_VCVT(VCVT_FS, vcvt_hs, vcvt_fs)
|
|
DO_VCVT(VCVT_FU, vcvt_hu, vcvt_fu)
|
|
|
|
/* Narrowing moves: only size 0 and 1 are valid */
|
|
#define DO_VMOVN(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_1op *a) \
|
|
{ \
|
|
static MVEGenOneOpFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
NULL, \
|
|
NULL, \
|
|
}; \
|
|
return do_1op(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_VMOVN(VMOVNB, vmovnb)
|
|
DO_VMOVN(VMOVNT, vmovnt)
|
|
DO_VMOVN(VQMOVUNB, vqmovunb)
|
|
DO_VMOVN(VQMOVUNT, vqmovunt)
|
|
DO_VMOVN(VQMOVN_BS, vqmovnbs)
|
|
DO_VMOVN(VQMOVN_TS, vqmovnts)
|
|
DO_VMOVN(VQMOVN_BU, vqmovnbu)
|
|
DO_VMOVN(VQMOVN_TU, vqmovntu)
|
|
|
|
static bool trans_VREV16(DisasContext *s, arg_1op *a)
|
|
{
|
|
static MVEGenOneOpFn * const fns[] = {
|
|
gen_helper_mve_vrev16b,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
return do_1op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VREV32(DisasContext *s, arg_1op *a)
|
|
{
|
|
static MVEGenOneOpFn * const fns[] = {
|
|
gen_helper_mve_vrev32b,
|
|
gen_helper_mve_vrev32h,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
return do_1op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VREV64(DisasContext *s, arg_1op *a)
|
|
{
|
|
static MVEGenOneOpFn * const fns[] = {
|
|
gen_helper_mve_vrev64b,
|
|
gen_helper_mve_vrev64h,
|
|
gen_helper_mve_vrev64w,
|
|
NULL,
|
|
};
|
|
return do_1op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VMVN(DisasContext *s, arg_1op *a)
|
|
{
|
|
return do_1op(s, a, gen_helper_mve_vmvn);
|
|
}
|
|
|
|
static bool trans_VABS_fp(DisasContext *s, arg_1op *a)
|
|
{
|
|
static MVEGenOneOpFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vfabsh,
|
|
gen_helper_mve_vfabss,
|
|
NULL,
|
|
};
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) {
|
|
return false;
|
|
}
|
|
return do_1op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VNEG_fp(DisasContext *s, arg_1op *a)
|
|
{
|
|
static MVEGenOneOpFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vfnegh,
|
|
gen_helper_mve_vfnegs,
|
|
NULL,
|
|
};
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) {
|
|
return false;
|
|
}
|
|
return do_1op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool do_2op(DisasContext *s, arg_2op *a, MVEGenTwoOpFn fn)
|
|
{
|
|
TCGv_ptr qd, qn, qm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qd | a->qn | a->qm) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
qn = mve_qreg_ptr(a->qn);
|
|
qm = mve_qreg_ptr(a->qm);
|
|
fn(cpu_env, qd, qn, qm);
|
|
tcg_temp_free_ptr(qd);
|
|
tcg_temp_free_ptr(qn);
|
|
tcg_temp_free_ptr(qm);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_LOGIC(INSN, HELPER) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2op *a) \
|
|
{ \
|
|
return do_2op(s, a, HELPER); \
|
|
}
|
|
|
|
DO_LOGIC(VAND, gen_helper_mve_vand)
|
|
DO_LOGIC(VBIC, gen_helper_mve_vbic)
|
|
DO_LOGIC(VORR, gen_helper_mve_vorr)
|
|
DO_LOGIC(VORN, gen_helper_mve_vorn)
|
|
DO_LOGIC(VEOR, gen_helper_mve_veor)
|
|
|
|
DO_LOGIC(VPSEL, gen_helper_mve_vpsel)
|
|
|
|
#define DO_2OP(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2op *a) \
|
|
{ \
|
|
static MVEGenTwoOpFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_2op(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_2OP(VADD, vadd)
|
|
DO_2OP(VSUB, vsub)
|
|
DO_2OP(VMUL, vmul)
|
|
DO_2OP(VMULH_S, vmulhs)
|
|
DO_2OP(VMULH_U, vmulhu)
|
|
DO_2OP(VRMULH_S, vrmulhs)
|
|
DO_2OP(VRMULH_U, vrmulhu)
|
|
DO_2OP(VMAX_S, vmaxs)
|
|
DO_2OP(VMAX_U, vmaxu)
|
|
DO_2OP(VMIN_S, vmins)
|
|
DO_2OP(VMIN_U, vminu)
|
|
DO_2OP(VABD_S, vabds)
|
|
DO_2OP(VABD_U, vabdu)
|
|
DO_2OP(VHADD_S, vhadds)
|
|
DO_2OP(VHADD_U, vhaddu)
|
|
DO_2OP(VHSUB_S, vhsubs)
|
|
DO_2OP(VHSUB_U, vhsubu)
|
|
DO_2OP(VMULL_BS, vmullbs)
|
|
DO_2OP(VMULL_BU, vmullbu)
|
|
DO_2OP(VMULL_TS, vmullts)
|
|
DO_2OP(VMULL_TU, vmulltu)
|
|
DO_2OP(VQDMULH, vqdmulh)
|
|
DO_2OP(VQRDMULH, vqrdmulh)
|
|
DO_2OP(VQADD_S, vqadds)
|
|
DO_2OP(VQADD_U, vqaddu)
|
|
DO_2OP(VQSUB_S, vqsubs)
|
|
DO_2OP(VQSUB_U, vqsubu)
|
|
DO_2OP(VSHL_S, vshls)
|
|
DO_2OP(VSHL_U, vshlu)
|
|
DO_2OP(VRSHL_S, vrshls)
|
|
DO_2OP(VRSHL_U, vrshlu)
|
|
DO_2OP(VQSHL_S, vqshls)
|
|
DO_2OP(VQSHL_U, vqshlu)
|
|
DO_2OP(VQRSHL_S, vqrshls)
|
|
DO_2OP(VQRSHL_U, vqrshlu)
|
|
DO_2OP(VQDMLADH, vqdmladh)
|
|
DO_2OP(VQDMLADHX, vqdmladhx)
|
|
DO_2OP(VQRDMLADH, vqrdmladh)
|
|
DO_2OP(VQRDMLADHX, vqrdmladhx)
|
|
DO_2OP(VQDMLSDH, vqdmlsdh)
|
|
DO_2OP(VQDMLSDHX, vqdmlsdhx)
|
|
DO_2OP(VQRDMLSDH, vqrdmlsdh)
|
|
DO_2OP(VQRDMLSDHX, vqrdmlsdhx)
|
|
DO_2OP(VRHADD_S, vrhadds)
|
|
DO_2OP(VRHADD_U, vrhaddu)
|
|
/*
|
|
* VCADD Qd == Qm at size MO_32 is UNPREDICTABLE; we choose not to diagnose
|
|
* so we can reuse the DO_2OP macro. (Our implementation calculates the
|
|
* "expected" results in this case.) Similarly for VHCADD.
|
|
*/
|
|
DO_2OP(VCADD90, vcadd90)
|
|
DO_2OP(VCADD270, vcadd270)
|
|
DO_2OP(VHCADD90, vhcadd90)
|
|
DO_2OP(VHCADD270, vhcadd270)
|
|
|
|
static bool trans_VQDMULLB(DisasContext *s, arg_2op *a)
|
|
{
|
|
static MVEGenTwoOpFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vqdmullbh,
|
|
gen_helper_mve_vqdmullbw,
|
|
NULL,
|
|
};
|
|
if (a->size == MO_32 && (a->qd == a->qm || a->qd == a->qn)) {
|
|
/* UNPREDICTABLE; we choose to undef */
|
|
return false;
|
|
}
|
|
return do_2op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VQDMULLT(DisasContext *s, arg_2op *a)
|
|
{
|
|
static MVEGenTwoOpFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vqdmullth,
|
|
gen_helper_mve_vqdmulltw,
|
|
NULL,
|
|
};
|
|
if (a->size == MO_32 && (a->qd == a->qm || a->qd == a->qn)) {
|
|
/* UNPREDICTABLE; we choose to undef */
|
|
return false;
|
|
}
|
|
return do_2op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VMULLP_B(DisasContext *s, arg_2op *a)
|
|
{
|
|
/*
|
|
* Note that a->size indicates the output size, ie VMULL.P8
|
|
* is the 8x8->16 operation and a->size is MO_16; VMULL.P16
|
|
* is the 16x16->32 operation and a->size is MO_32.
|
|
*/
|
|
static MVEGenTwoOpFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vmullpbh,
|
|
gen_helper_mve_vmullpbw,
|
|
NULL,
|
|
};
|
|
return do_2op(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VMULLP_T(DisasContext *s, arg_2op *a)
|
|
{
|
|
/* a->size is as for trans_VMULLP_B */
|
|
static MVEGenTwoOpFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vmullpth,
|
|
gen_helper_mve_vmullptw,
|
|
NULL,
|
|
};
|
|
return do_2op(s, a, fns[a->size]);
|
|
}
|
|
|
|
/*
|
|
* VADC and VSBC: these perform an add-with-carry or subtract-with-carry
|
|
* of the 32-bit elements in each lane of the input vectors, where the
|
|
* carry-out of each add is the carry-in of the next. The initial carry
|
|
* input is either fixed (0 for VADCI, 1 for VSBCI) or is from FPSCR.C
|
|
* (for VADC and VSBC); the carry out at the end is written back to FPSCR.C.
|
|
* These insns are subject to beat-wise execution. Partial execution
|
|
* of an I=1 (initial carry input fixed) insn which does not
|
|
* execute the first beat must start with the current FPSCR.NZCV
|
|
* value, not the fixed constant input.
|
|
*/
|
|
static bool trans_VADC(DisasContext *s, arg_2op *a)
|
|
{
|
|
return do_2op(s, a, gen_helper_mve_vadc);
|
|
}
|
|
|
|
static bool trans_VADCI(DisasContext *s, arg_2op *a)
|
|
{
|
|
if (mve_skip_first_beat(s)) {
|
|
return trans_VADC(s, a);
|
|
}
|
|
return do_2op(s, a, gen_helper_mve_vadci);
|
|
}
|
|
|
|
static bool trans_VSBC(DisasContext *s, arg_2op *a)
|
|
{
|
|
return do_2op(s, a, gen_helper_mve_vsbc);
|
|
}
|
|
|
|
static bool trans_VSBCI(DisasContext *s, arg_2op *a)
|
|
{
|
|
if (mve_skip_first_beat(s)) {
|
|
return trans_VSBC(s, a);
|
|
}
|
|
return do_2op(s, a, gen_helper_mve_vsbci);
|
|
}
|
|
|
|
#define DO_2OP_FP(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2op *a) \
|
|
{ \
|
|
static MVEGenTwoOpFn * const fns[] = { \
|
|
NULL, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##s, \
|
|
NULL, \
|
|
}; \
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_2op(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_2OP_FP(VADD_fp, vfadd)
|
|
DO_2OP_FP(VSUB_fp, vfsub)
|
|
DO_2OP_FP(VMUL_fp, vfmul)
|
|
DO_2OP_FP(VABD_fp, vfabd)
|
|
DO_2OP_FP(VMAXNM, vmaxnm)
|
|
DO_2OP_FP(VMINNM, vminnm)
|
|
DO_2OP_FP(VCADD90_fp, vfcadd90)
|
|
DO_2OP_FP(VCADD270_fp, vfcadd270)
|
|
DO_2OP_FP(VFMA, vfma)
|
|
DO_2OP_FP(VFMS, vfms)
|
|
DO_2OP_FP(VCMUL0, vcmul0)
|
|
DO_2OP_FP(VCMUL90, vcmul90)
|
|
DO_2OP_FP(VCMUL180, vcmul180)
|
|
DO_2OP_FP(VCMUL270, vcmul270)
|
|
DO_2OP_FP(VCMLA0, vcmla0)
|
|
DO_2OP_FP(VCMLA90, vcmla90)
|
|
DO_2OP_FP(VCMLA180, vcmla180)
|
|
DO_2OP_FP(VCMLA270, vcmla270)
|
|
DO_2OP_FP(VMAXNMA, vmaxnma)
|
|
DO_2OP_FP(VMINNMA, vminnma)
|
|
|
|
static bool do_2op_scalar(DisasContext *s, arg_2scalar *a,
|
|
MVEGenTwoOpScalarFn fn)
|
|
{
|
|
TCGv_ptr qd, qn;
|
|
TCGv_i32 rm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qd | a->qn) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
if (a->rm == 13 || a->rm == 15) {
|
|
/* UNPREDICTABLE */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
qn = mve_qreg_ptr(a->qn);
|
|
rm = load_reg(s, a->rm);
|
|
fn(cpu_env, qd, qn, rm);
|
|
tcg_temp_free_i32(rm);
|
|
tcg_temp_free_ptr(qd);
|
|
tcg_temp_free_ptr(qn);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_2OP_SCALAR(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2scalar *a) \
|
|
{ \
|
|
static MVEGenTwoOpScalarFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_2op_scalar(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_2OP_SCALAR(VADD_scalar, vadd_scalar)
|
|
DO_2OP_SCALAR(VSUB_scalar, vsub_scalar)
|
|
DO_2OP_SCALAR(VMUL_scalar, vmul_scalar)
|
|
DO_2OP_SCALAR(VHADD_S_scalar, vhadds_scalar)
|
|
DO_2OP_SCALAR(VHADD_U_scalar, vhaddu_scalar)
|
|
DO_2OP_SCALAR(VHSUB_S_scalar, vhsubs_scalar)
|
|
DO_2OP_SCALAR(VHSUB_U_scalar, vhsubu_scalar)
|
|
DO_2OP_SCALAR(VQADD_S_scalar, vqadds_scalar)
|
|
DO_2OP_SCALAR(VQADD_U_scalar, vqaddu_scalar)
|
|
DO_2OP_SCALAR(VQSUB_S_scalar, vqsubs_scalar)
|
|
DO_2OP_SCALAR(VQSUB_U_scalar, vqsubu_scalar)
|
|
DO_2OP_SCALAR(VQDMULH_scalar, vqdmulh_scalar)
|
|
DO_2OP_SCALAR(VQRDMULH_scalar, vqrdmulh_scalar)
|
|
DO_2OP_SCALAR(VBRSR, vbrsr)
|
|
DO_2OP_SCALAR(VMLA, vmla)
|
|
DO_2OP_SCALAR(VMLAS, vmlas)
|
|
DO_2OP_SCALAR(VQDMLAH, vqdmlah)
|
|
DO_2OP_SCALAR(VQRDMLAH, vqrdmlah)
|
|
DO_2OP_SCALAR(VQDMLASH, vqdmlash)
|
|
DO_2OP_SCALAR(VQRDMLASH, vqrdmlash)
|
|
|
|
static bool trans_VQDMULLB_scalar(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static MVEGenTwoOpScalarFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vqdmullb_scalarh,
|
|
gen_helper_mve_vqdmullb_scalarw,
|
|
NULL,
|
|
};
|
|
if (a->qd == a->qn && a->size == MO_32) {
|
|
/* UNPREDICTABLE; we choose to undef */
|
|
return false;
|
|
}
|
|
return do_2op_scalar(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VQDMULLT_scalar(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static MVEGenTwoOpScalarFn * const fns[] = {
|
|
NULL,
|
|
gen_helper_mve_vqdmullt_scalarh,
|
|
gen_helper_mve_vqdmullt_scalarw,
|
|
NULL,
|
|
};
|
|
if (a->qd == a->qn && a->size == MO_32) {
|
|
/* UNPREDICTABLE; we choose to undef */
|
|
return false;
|
|
}
|
|
return do_2op_scalar(s, a, fns[a->size]);
|
|
}
|
|
|
|
|
|
#define DO_2OP_FP_SCALAR(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2scalar *a) \
|
|
{ \
|
|
static MVEGenTwoOpScalarFn * const fns[] = { \
|
|
NULL, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##s, \
|
|
NULL, \
|
|
}; \
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_2op_scalar(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_2OP_FP_SCALAR(VADD_fp_scalar, vfadd_scalar)
|
|
DO_2OP_FP_SCALAR(VSUB_fp_scalar, vfsub_scalar)
|
|
DO_2OP_FP_SCALAR(VMUL_fp_scalar, vfmul_scalar)
|
|
DO_2OP_FP_SCALAR(VFMA_scalar, vfma_scalar)
|
|
DO_2OP_FP_SCALAR(VFMAS_scalar, vfmas_scalar)
|
|
|
|
static bool do_long_dual_acc(DisasContext *s, arg_vmlaldav *a,
|
|
MVEGenLongDualAccOpFn *fn)
|
|
{
|
|
TCGv_ptr qn, qm;
|
|
TCGv_i64 rda;
|
|
TCGv_i32 rdalo, rdahi;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qn | a->qm) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
/*
|
|
* rdahi == 13 is UNPREDICTABLE; rdahi == 15 is a related
|
|
* encoding; rdalo always has bit 0 clear so cannot be 13 or 15.
|
|
*/
|
|
if (a->rdahi == 13 || a->rdahi == 15) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qn = mve_qreg_ptr(a->qn);
|
|
qm = mve_qreg_ptr(a->qm);
|
|
|
|
/*
|
|
* This insn is subject to beat-wise execution. Partial execution
|
|
* of an A=0 (no-accumulate) insn which does not execute the first
|
|
* beat must start with the current rda value, not 0.
|
|
*/
|
|
if (a->a || mve_skip_first_beat(s)) {
|
|
rda = tcg_temp_new_i64();
|
|
rdalo = load_reg(s, a->rdalo);
|
|
rdahi = load_reg(s, a->rdahi);
|
|
tcg_gen_concat_i32_i64(rda, rdalo, rdahi);
|
|
tcg_temp_free_i32(rdalo);
|
|
tcg_temp_free_i32(rdahi);
|
|
} else {
|
|
rda = tcg_const_i64(0);
|
|
}
|
|
|
|
fn(rda, cpu_env, qn, qm, rda);
|
|
tcg_temp_free_ptr(qn);
|
|
tcg_temp_free_ptr(qm);
|
|
|
|
rdalo = tcg_temp_new_i32();
|
|
rdahi = tcg_temp_new_i32();
|
|
tcg_gen_extrl_i64_i32(rdalo, rda);
|
|
tcg_gen_extrh_i64_i32(rdahi, rda);
|
|
store_reg(s, a->rdalo, rdalo);
|
|
store_reg(s, a->rdahi, rdahi);
|
|
tcg_temp_free_i64(rda);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VMLALDAV_S(DisasContext *s, arg_vmlaldav *a)
|
|
{
|
|
static MVEGenLongDualAccOpFn * const fns[4][2] = {
|
|
{ NULL, NULL },
|
|
{ gen_helper_mve_vmlaldavsh, gen_helper_mve_vmlaldavxsh },
|
|
{ gen_helper_mve_vmlaldavsw, gen_helper_mve_vmlaldavxsw },
|
|
{ NULL, NULL },
|
|
};
|
|
return do_long_dual_acc(s, a, fns[a->size][a->x]);
|
|
}
|
|
|
|
static bool trans_VMLALDAV_U(DisasContext *s, arg_vmlaldav *a)
|
|
{
|
|
static MVEGenLongDualAccOpFn * const fns[4][2] = {
|
|
{ NULL, NULL },
|
|
{ gen_helper_mve_vmlaldavuh, NULL },
|
|
{ gen_helper_mve_vmlaldavuw, NULL },
|
|
{ NULL, NULL },
|
|
};
|
|
return do_long_dual_acc(s, a, fns[a->size][a->x]);
|
|
}
|
|
|
|
static bool trans_VMLSLDAV(DisasContext *s, arg_vmlaldav *a)
|
|
{
|
|
static MVEGenLongDualAccOpFn * const fns[4][2] = {
|
|
{ NULL, NULL },
|
|
{ gen_helper_mve_vmlsldavsh, gen_helper_mve_vmlsldavxsh },
|
|
{ gen_helper_mve_vmlsldavsw, gen_helper_mve_vmlsldavxsw },
|
|
{ NULL, NULL },
|
|
};
|
|
return do_long_dual_acc(s, a, fns[a->size][a->x]);
|
|
}
|
|
|
|
static bool trans_VRMLALDAVH_S(DisasContext *s, arg_vmlaldav *a)
|
|
{
|
|
static MVEGenLongDualAccOpFn * const fns[] = {
|
|
gen_helper_mve_vrmlaldavhsw, gen_helper_mve_vrmlaldavhxsw,
|
|
};
|
|
return do_long_dual_acc(s, a, fns[a->x]);
|
|
}
|
|
|
|
static bool trans_VRMLALDAVH_U(DisasContext *s, arg_vmlaldav *a)
|
|
{
|
|
static MVEGenLongDualAccOpFn * const fns[] = {
|
|
gen_helper_mve_vrmlaldavhuw, NULL,
|
|
};
|
|
return do_long_dual_acc(s, a, fns[a->x]);
|
|
}
|
|
|
|
static bool trans_VRMLSLDAVH(DisasContext *s, arg_vmlaldav *a)
|
|
{
|
|
static MVEGenLongDualAccOpFn * const fns[] = {
|
|
gen_helper_mve_vrmlsldavhsw, gen_helper_mve_vrmlsldavhxsw,
|
|
};
|
|
return do_long_dual_acc(s, a, fns[a->x]);
|
|
}
|
|
|
|
static bool do_dual_acc(DisasContext *s, arg_vmladav *a, MVEGenDualAccOpFn *fn)
|
|
{
|
|
TCGv_ptr qn, qm;
|
|
TCGv_i32 rda;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qn) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qn = mve_qreg_ptr(a->qn);
|
|
qm = mve_qreg_ptr(a->qm);
|
|
|
|
/*
|
|
* This insn is subject to beat-wise execution. Partial execution
|
|
* of an A=0 (no-accumulate) insn which does not execute the first
|
|
* beat must start with the current rda value, not 0.
|
|
*/
|
|
if (a->a || mve_skip_first_beat(s)) {
|
|
rda = load_reg(s, a->rda);
|
|
} else {
|
|
rda = tcg_const_i32(0);
|
|
}
|
|
|
|
fn(rda, cpu_env, qn, qm, rda);
|
|
store_reg(s, a->rda, rda);
|
|
tcg_temp_free_ptr(qn);
|
|
tcg_temp_free_ptr(qm);
|
|
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_DUAL_ACC(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_vmladav *a) \
|
|
{ \
|
|
static MVEGenDualAccOpFn * const fns[4][2] = { \
|
|
{ gen_helper_mve_##FN##b, gen_helper_mve_##FN##xb }, \
|
|
{ gen_helper_mve_##FN##h, gen_helper_mve_##FN##xh }, \
|
|
{ gen_helper_mve_##FN##w, gen_helper_mve_##FN##xw }, \
|
|
{ NULL, NULL }, \
|
|
}; \
|
|
return do_dual_acc(s, a, fns[a->size][a->x]); \
|
|
}
|
|
|
|
DO_DUAL_ACC(VMLADAV_S, vmladavs)
|
|
DO_DUAL_ACC(VMLSDAV, vmlsdav)
|
|
|
|
static bool trans_VMLADAV_U(DisasContext *s, arg_vmladav *a)
|
|
{
|
|
static MVEGenDualAccOpFn * const fns[4][2] = {
|
|
{ gen_helper_mve_vmladavub, NULL },
|
|
{ gen_helper_mve_vmladavuh, NULL },
|
|
{ gen_helper_mve_vmladavuw, NULL },
|
|
{ NULL, NULL },
|
|
};
|
|
return do_dual_acc(s, a, fns[a->size][a->x]);
|
|
}
|
|
|
|
static void gen_vpst(DisasContext *s, uint32_t mask)
|
|
{
|
|
/*
|
|
* Set the VPR mask fields. We take advantage of MASK01 and MASK23
|
|
* being adjacent fields in the register.
|
|
*
|
|
* Updating the masks is not predicated, but it is subject to beat-wise
|
|
* execution, and the mask is updated on the odd-numbered beats.
|
|
* So if PSR.ECI says we should skip beat 1, we mustn't update the
|
|
* 01 mask field.
|
|
*/
|
|
TCGv_i32 vpr = load_cpu_field(v7m.vpr);
|
|
switch (s->eci) {
|
|
case ECI_NONE:
|
|
case ECI_A0:
|
|
/* Update both 01 and 23 fields */
|
|
tcg_gen_deposit_i32(vpr, vpr,
|
|
tcg_constant_i32(mask | (mask << 4)),
|
|
R_V7M_VPR_MASK01_SHIFT,
|
|
R_V7M_VPR_MASK01_LENGTH + R_V7M_VPR_MASK23_LENGTH);
|
|
break;
|
|
case ECI_A0A1:
|
|
case ECI_A0A1A2:
|
|
case ECI_A0A1A2B0:
|
|
/* Update only the 23 mask field */
|
|
tcg_gen_deposit_i32(vpr, vpr,
|
|
tcg_constant_i32(mask),
|
|
R_V7M_VPR_MASK23_SHIFT, R_V7M_VPR_MASK23_LENGTH);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
store_cpu_field(vpr, v7m.vpr);
|
|
}
|
|
|
|
static bool trans_VPST(DisasContext *s, arg_VPST *a)
|
|
{
|
|
/* mask == 0 is a "related encoding" */
|
|
if (!dc_isar_feature(aa32_mve, s) || !a->mask) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
gen_vpst(s, a->mask);
|
|
mve_update_and_store_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VPNOT(DisasContext *s, arg_VPNOT *a)
|
|
{
|
|
/*
|
|
* Invert the predicate in VPR.P0. We have call out to
|
|
* a helper because this insn itself is beatwise and can
|
|
* be predicated.
|
|
*/
|
|
if (!dc_isar_feature(aa32_mve, s)) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
gen_helper_mve_vpnot(cpu_env);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VADDV(DisasContext *s, arg_VADDV *a)
|
|
{
|
|
/* VADDV: vector add across vector */
|
|
static MVEGenVADDVFn * const fns[4][2] = {
|
|
{ gen_helper_mve_vaddvsb, gen_helper_mve_vaddvub },
|
|
{ gen_helper_mve_vaddvsh, gen_helper_mve_vaddvuh },
|
|
{ gen_helper_mve_vaddvsw, gen_helper_mve_vaddvuw },
|
|
{ NULL, NULL }
|
|
};
|
|
TCGv_ptr qm;
|
|
TCGv_i32 rda;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
a->size == 3) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* This insn is subject to beat-wise execution. Partial execution
|
|
* of an A=0 (no-accumulate) insn which does not execute the first
|
|
* beat must start with the current value of Rda, not zero.
|
|
*/
|
|
if (a->a || mve_skip_first_beat(s)) {
|
|
/* Accumulate input from Rda */
|
|
rda = load_reg(s, a->rda);
|
|
} else {
|
|
/* Accumulate starting at zero */
|
|
rda = tcg_const_i32(0);
|
|
}
|
|
|
|
qm = mve_qreg_ptr(a->qm);
|
|
fns[a->size][a->u](rda, cpu_env, qm, rda);
|
|
store_reg(s, a->rda, rda);
|
|
tcg_temp_free_ptr(qm);
|
|
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VADDLV(DisasContext *s, arg_VADDLV *a)
|
|
{
|
|
/*
|
|
* Vector Add Long Across Vector: accumulate the 32-bit
|
|
* elements of the vector into a 64-bit result stored in
|
|
* a pair of general-purpose registers.
|
|
* No need to check Qm's bank: it is only 3 bits in decode.
|
|
*/
|
|
TCGv_ptr qm;
|
|
TCGv_i64 rda;
|
|
TCGv_i32 rdalo, rdahi;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s)) {
|
|
return false;
|
|
}
|
|
/*
|
|
* rdahi == 13 is UNPREDICTABLE; rdahi == 15 is a related
|
|
* encoding; rdalo always has bit 0 clear so cannot be 13 or 15.
|
|
*/
|
|
if (a->rdahi == 13 || a->rdahi == 15) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* This insn is subject to beat-wise execution. Partial execution
|
|
* of an A=0 (no-accumulate) insn which does not execute the first
|
|
* beat must start with the current value of RdaHi:RdaLo, not zero.
|
|
*/
|
|
if (a->a || mve_skip_first_beat(s)) {
|
|
/* Accumulate input from RdaHi:RdaLo */
|
|
rda = tcg_temp_new_i64();
|
|
rdalo = load_reg(s, a->rdalo);
|
|
rdahi = load_reg(s, a->rdahi);
|
|
tcg_gen_concat_i32_i64(rda, rdalo, rdahi);
|
|
tcg_temp_free_i32(rdalo);
|
|
tcg_temp_free_i32(rdahi);
|
|
} else {
|
|
/* Accumulate starting at zero */
|
|
rda = tcg_const_i64(0);
|
|
}
|
|
|
|
qm = mve_qreg_ptr(a->qm);
|
|
if (a->u) {
|
|
gen_helper_mve_vaddlv_u(rda, cpu_env, qm, rda);
|
|
} else {
|
|
gen_helper_mve_vaddlv_s(rda, cpu_env, qm, rda);
|
|
}
|
|
tcg_temp_free_ptr(qm);
|
|
|
|
rdalo = tcg_temp_new_i32();
|
|
rdahi = tcg_temp_new_i32();
|
|
tcg_gen_extrl_i64_i32(rdalo, rda);
|
|
tcg_gen_extrh_i64_i32(rdahi, rda);
|
|
store_reg(s, a->rdalo, rdalo);
|
|
store_reg(s, a->rdahi, rdahi);
|
|
tcg_temp_free_i64(rda);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool do_1imm(DisasContext *s, arg_1imm *a, MVEGenOneOpImmFn *fn)
|
|
{
|
|
TCGv_ptr qd;
|
|
uint64_t imm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qd) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
imm = asimd_imm_const(a->imm, a->cmode, a->op);
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
fn(cpu_env, qd, tcg_constant_i64(imm));
|
|
tcg_temp_free_ptr(qd);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_Vimm_1r(DisasContext *s, arg_1imm *a)
|
|
{
|
|
/* Handle decode of cmode/op here between VORR/VBIC/VMOV */
|
|
MVEGenOneOpImmFn *fn;
|
|
|
|
if ((a->cmode & 1) && a->cmode < 12) {
|
|
if (a->op) {
|
|
/*
|
|
* For op=1, the immediate will be inverted by asimd_imm_const(),
|
|
* so the VBIC becomes a logical AND operation.
|
|
*/
|
|
fn = gen_helper_mve_vandi;
|
|
} else {
|
|
fn = gen_helper_mve_vorri;
|
|
}
|
|
} else {
|
|
/* There is one unallocated cmode/op combination in this space */
|
|
if (a->cmode == 15 && a->op == 1) {
|
|
return false;
|
|
}
|
|
/* asimd_imm_const() sorts out VMVNI vs VMOVI for us */
|
|
fn = gen_helper_mve_vmovi;
|
|
}
|
|
return do_1imm(s, a, fn);
|
|
}
|
|
|
|
static bool do_2shift(DisasContext *s, arg_2shift *a, MVEGenTwoOpShiftFn fn,
|
|
bool negateshift)
|
|
{
|
|
TCGv_ptr qd, qm;
|
|
int shift = a->shift;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qd | a->qm) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* When we handle a right shift insn using a left-shift helper
|
|
* which permits a negative shift count to indicate a right-shift,
|
|
* we must negate the shift count.
|
|
*/
|
|
if (negateshift) {
|
|
shift = -shift;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
qm = mve_qreg_ptr(a->qm);
|
|
fn(cpu_env, qd, qm, tcg_constant_i32(shift));
|
|
tcg_temp_free_ptr(qd);
|
|
tcg_temp_free_ptr(qm);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_2SHIFT(INSN, FN, NEGATESHIFT) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2shift *a) \
|
|
{ \
|
|
static MVEGenTwoOpShiftFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_2shift(s, a, fns[a->size], NEGATESHIFT); \
|
|
}
|
|
|
|
DO_2SHIFT(VSHLI, vshli_u, false)
|
|
DO_2SHIFT(VQSHLI_S, vqshli_s, false)
|
|
DO_2SHIFT(VQSHLI_U, vqshli_u, false)
|
|
DO_2SHIFT(VQSHLUI, vqshlui_s, false)
|
|
/* These right shifts use a left-shift helper with negated shift count */
|
|
DO_2SHIFT(VSHRI_S, vshli_s, true)
|
|
DO_2SHIFT(VSHRI_U, vshli_u, true)
|
|
DO_2SHIFT(VRSHRI_S, vrshli_s, true)
|
|
DO_2SHIFT(VRSHRI_U, vrshli_u, true)
|
|
|
|
DO_2SHIFT(VSRI, vsri, false)
|
|
DO_2SHIFT(VSLI, vsli, false)
|
|
|
|
#define DO_2SHIFT_FP(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2shift *a) \
|
|
{ \
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_2shift(s, a, gen_helper_mve_##FN, false); \
|
|
}
|
|
|
|
DO_2SHIFT_FP(VCVT_SH_fixed, vcvt_sh)
|
|
DO_2SHIFT_FP(VCVT_UH_fixed, vcvt_uh)
|
|
DO_2SHIFT_FP(VCVT_HS_fixed, vcvt_hs)
|
|
DO_2SHIFT_FP(VCVT_HU_fixed, vcvt_hu)
|
|
DO_2SHIFT_FP(VCVT_SF_fixed, vcvt_sf)
|
|
DO_2SHIFT_FP(VCVT_UF_fixed, vcvt_uf)
|
|
DO_2SHIFT_FP(VCVT_FS_fixed, vcvt_fs)
|
|
DO_2SHIFT_FP(VCVT_FU_fixed, vcvt_fu)
|
|
|
|
static bool do_2shift_scalar(DisasContext *s, arg_shl_scalar *a,
|
|
MVEGenTwoOpShiftFn *fn)
|
|
{
|
|
TCGv_ptr qda;
|
|
TCGv_i32 rm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qda) ||
|
|
a->rm == 13 || a->rm == 15 || !fn) {
|
|
/* Rm cases are UNPREDICTABLE */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qda = mve_qreg_ptr(a->qda);
|
|
rm = load_reg(s, a->rm);
|
|
fn(cpu_env, qda, qda, rm);
|
|
tcg_temp_free_ptr(qda);
|
|
tcg_temp_free_i32(rm);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_2SHIFT_SCALAR(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_shl_scalar *a) \
|
|
{ \
|
|
static MVEGenTwoOpShiftFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_2shift_scalar(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_2SHIFT_SCALAR(VSHL_S_scalar, vshli_s)
|
|
DO_2SHIFT_SCALAR(VSHL_U_scalar, vshli_u)
|
|
DO_2SHIFT_SCALAR(VRSHL_S_scalar, vrshli_s)
|
|
DO_2SHIFT_SCALAR(VRSHL_U_scalar, vrshli_u)
|
|
DO_2SHIFT_SCALAR(VQSHL_S_scalar, vqshli_s)
|
|
DO_2SHIFT_SCALAR(VQSHL_U_scalar, vqshli_u)
|
|
DO_2SHIFT_SCALAR(VQRSHL_S_scalar, vqrshli_s)
|
|
DO_2SHIFT_SCALAR(VQRSHL_U_scalar, vqrshli_u)
|
|
|
|
#define DO_VSHLL(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2shift *a) \
|
|
{ \
|
|
static MVEGenTwoOpShiftFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
}; \
|
|
return do_2shift(s, a, fns[a->size], false); \
|
|
}
|
|
|
|
DO_VSHLL(VSHLL_BS, vshllbs)
|
|
DO_VSHLL(VSHLL_BU, vshllbu)
|
|
DO_VSHLL(VSHLL_TS, vshllts)
|
|
DO_VSHLL(VSHLL_TU, vshlltu)
|
|
|
|
#define DO_2SHIFT_N(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_2shift *a) \
|
|
{ \
|
|
static MVEGenTwoOpShiftFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
}; \
|
|
return do_2shift(s, a, fns[a->size], false); \
|
|
}
|
|
|
|
DO_2SHIFT_N(VSHRNB, vshrnb)
|
|
DO_2SHIFT_N(VSHRNT, vshrnt)
|
|
DO_2SHIFT_N(VRSHRNB, vrshrnb)
|
|
DO_2SHIFT_N(VRSHRNT, vrshrnt)
|
|
DO_2SHIFT_N(VQSHRNB_S, vqshrnb_s)
|
|
DO_2SHIFT_N(VQSHRNT_S, vqshrnt_s)
|
|
DO_2SHIFT_N(VQSHRNB_U, vqshrnb_u)
|
|
DO_2SHIFT_N(VQSHRNT_U, vqshrnt_u)
|
|
DO_2SHIFT_N(VQSHRUNB, vqshrunb)
|
|
DO_2SHIFT_N(VQSHRUNT, vqshrunt)
|
|
DO_2SHIFT_N(VQRSHRNB_S, vqrshrnb_s)
|
|
DO_2SHIFT_N(VQRSHRNT_S, vqrshrnt_s)
|
|
DO_2SHIFT_N(VQRSHRNB_U, vqrshrnb_u)
|
|
DO_2SHIFT_N(VQRSHRNT_U, vqrshrnt_u)
|
|
DO_2SHIFT_N(VQRSHRUNB, vqrshrunb)
|
|
DO_2SHIFT_N(VQRSHRUNT, vqrshrunt)
|
|
|
|
static bool trans_VSHLC(DisasContext *s, arg_VSHLC *a)
|
|
{
|
|
/*
|
|
* Whole Vector Left Shift with Carry. The carry is taken
|
|
* from a general purpose register and written back there.
|
|
* An imm of 0 means "shift by 32".
|
|
*/
|
|
TCGv_ptr qd;
|
|
TCGv_i32 rdm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) || !mve_check_qreg_bank(s, a->qd)) {
|
|
return false;
|
|
}
|
|
if (a->rdm == 13 || a->rdm == 15) {
|
|
/* CONSTRAINED UNPREDICTABLE: we UNDEF */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
rdm = load_reg(s, a->rdm);
|
|
gen_helper_mve_vshlc(rdm, cpu_env, qd, rdm, tcg_constant_i32(a->imm));
|
|
store_reg(s, a->rdm, rdm);
|
|
tcg_temp_free_ptr(qd);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool do_vidup(DisasContext *s, arg_vidup *a, MVEGenVIDUPFn *fn)
|
|
{
|
|
TCGv_ptr qd;
|
|
TCGv_i32 rn;
|
|
|
|
/*
|
|
* Vector increment/decrement with wrap and duplicate (VIDUP, VDDUP).
|
|
* This fills the vector with elements of successively increasing
|
|
* or decreasing values, starting from Rn.
|
|
*/
|
|
if (!dc_isar_feature(aa32_mve, s) || !mve_check_qreg_bank(s, a->qd)) {
|
|
return false;
|
|
}
|
|
if (a->size == MO_64) {
|
|
/* size 0b11 is another encoding */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
rn = load_reg(s, a->rn);
|
|
fn(rn, cpu_env, qd, rn, tcg_constant_i32(a->imm));
|
|
store_reg(s, a->rn, rn);
|
|
tcg_temp_free_ptr(qd);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool do_viwdup(DisasContext *s, arg_viwdup *a, MVEGenVIWDUPFn *fn)
|
|
{
|
|
TCGv_ptr qd;
|
|
TCGv_i32 rn, rm;
|
|
|
|
/*
|
|
* Vector increment/decrement with wrap and duplicate (VIWDUp, VDWDUP)
|
|
* This fills the vector with elements of successively increasing
|
|
* or decreasing values, starting from Rn. Rm specifies a point where
|
|
* the count wraps back around to 0. The updated offset is written back
|
|
* to Rn.
|
|
*/
|
|
if (!dc_isar_feature(aa32_mve, s) || !mve_check_qreg_bank(s, a->qd)) {
|
|
return false;
|
|
}
|
|
if (!fn || a->rm == 13 || a->rm == 15) {
|
|
/*
|
|
* size 0b11 is another encoding; Rm == 13 is UNPREDICTABLE;
|
|
* Rm == 13 is VIWDUP, VDWDUP.
|
|
*/
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qd = mve_qreg_ptr(a->qd);
|
|
rn = load_reg(s, a->rn);
|
|
rm = load_reg(s, a->rm);
|
|
fn(rn, cpu_env, qd, rn, rm, tcg_constant_i32(a->imm));
|
|
store_reg(s, a->rn, rn);
|
|
tcg_temp_free_ptr(qd);
|
|
tcg_temp_free_i32(rm);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VIDUP(DisasContext *s, arg_vidup *a)
|
|
{
|
|
static MVEGenVIDUPFn * const fns[] = {
|
|
gen_helper_mve_vidupb,
|
|
gen_helper_mve_viduph,
|
|
gen_helper_mve_vidupw,
|
|
NULL,
|
|
};
|
|
return do_vidup(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VDDUP(DisasContext *s, arg_vidup *a)
|
|
{
|
|
static MVEGenVIDUPFn * const fns[] = {
|
|
gen_helper_mve_vidupb,
|
|
gen_helper_mve_viduph,
|
|
gen_helper_mve_vidupw,
|
|
NULL,
|
|
};
|
|
/* VDDUP is just like VIDUP but with a negative immediate */
|
|
a->imm = -a->imm;
|
|
return do_vidup(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VIWDUP(DisasContext *s, arg_viwdup *a)
|
|
{
|
|
static MVEGenVIWDUPFn * const fns[] = {
|
|
gen_helper_mve_viwdupb,
|
|
gen_helper_mve_viwduph,
|
|
gen_helper_mve_viwdupw,
|
|
NULL,
|
|
};
|
|
return do_viwdup(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool trans_VDWDUP(DisasContext *s, arg_viwdup *a)
|
|
{
|
|
static MVEGenVIWDUPFn * const fns[] = {
|
|
gen_helper_mve_vdwdupb,
|
|
gen_helper_mve_vdwduph,
|
|
gen_helper_mve_vdwdupw,
|
|
NULL,
|
|
};
|
|
return do_viwdup(s, a, fns[a->size]);
|
|
}
|
|
|
|
static bool do_vcmp(DisasContext *s, arg_vcmp *a, MVEGenCmpFn *fn)
|
|
{
|
|
TCGv_ptr qn, qm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) || !mve_check_qreg_bank(s, a->qm) ||
|
|
!fn) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qn = mve_qreg_ptr(a->qn);
|
|
qm = mve_qreg_ptr(a->qm);
|
|
fn(cpu_env, qn, qm);
|
|
tcg_temp_free_ptr(qn);
|
|
tcg_temp_free_ptr(qm);
|
|
if (a->mask) {
|
|
/* VPT */
|
|
gen_vpst(s, a->mask);
|
|
}
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool do_vcmp_scalar(DisasContext *s, arg_vcmp_scalar *a,
|
|
MVEGenScalarCmpFn *fn)
|
|
{
|
|
TCGv_ptr qn;
|
|
TCGv_i32 rm;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) || !fn || a->rm == 13) {
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qn = mve_qreg_ptr(a->qn);
|
|
if (a->rm == 15) {
|
|
/* Encoding Rm=0b1111 means "constant zero" */
|
|
rm = tcg_constant_i32(0);
|
|
} else {
|
|
rm = load_reg(s, a->rm);
|
|
}
|
|
fn(cpu_env, qn, rm);
|
|
tcg_temp_free_ptr(qn);
|
|
tcg_temp_free_i32(rm);
|
|
if (a->mask) {
|
|
/* VPT */
|
|
gen_vpst(s, a->mask);
|
|
}
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_VCMP(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_vcmp *a) \
|
|
{ \
|
|
static MVEGenCmpFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_vcmp(s, a, fns[a->size]); \
|
|
} \
|
|
static bool trans_##INSN##_scalar(DisasContext *s, \
|
|
arg_vcmp_scalar *a) \
|
|
{ \
|
|
static MVEGenScalarCmpFn * const fns[] = { \
|
|
gen_helper_mve_##FN##_scalarb, \
|
|
gen_helper_mve_##FN##_scalarh, \
|
|
gen_helper_mve_##FN##_scalarw, \
|
|
NULL, \
|
|
}; \
|
|
return do_vcmp_scalar(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_VCMP(VCMPEQ, vcmpeq)
|
|
DO_VCMP(VCMPNE, vcmpne)
|
|
DO_VCMP(VCMPCS, vcmpcs)
|
|
DO_VCMP(VCMPHI, vcmphi)
|
|
DO_VCMP(VCMPGE, vcmpge)
|
|
DO_VCMP(VCMPLT, vcmplt)
|
|
DO_VCMP(VCMPGT, vcmpgt)
|
|
DO_VCMP(VCMPLE, vcmple)
|
|
|
|
#define DO_VCMP_FP(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_vcmp *a) \
|
|
{ \
|
|
static MVEGenCmpFn * const fns[] = { \
|
|
NULL, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##s, \
|
|
NULL, \
|
|
}; \
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_vcmp(s, a, fns[a->size]); \
|
|
} \
|
|
static bool trans_##INSN##_scalar(DisasContext *s, \
|
|
arg_vcmp_scalar *a) \
|
|
{ \
|
|
static MVEGenScalarCmpFn * const fns[] = { \
|
|
NULL, \
|
|
gen_helper_mve_##FN##_scalarh, \
|
|
gen_helper_mve_##FN##_scalars, \
|
|
NULL, \
|
|
}; \
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_vcmp_scalar(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_VCMP_FP(VCMPEQ_fp, vfcmpeq)
|
|
DO_VCMP_FP(VCMPNE_fp, vfcmpne)
|
|
DO_VCMP_FP(VCMPGE_fp, vfcmpge)
|
|
DO_VCMP_FP(VCMPLT_fp, vfcmplt)
|
|
DO_VCMP_FP(VCMPGT_fp, vfcmpgt)
|
|
DO_VCMP_FP(VCMPLE_fp, vfcmple)
|
|
|
|
static bool do_vmaxv(DisasContext *s, arg_vmaxv *a, MVEGenVADDVFn fn)
|
|
{
|
|
/*
|
|
* MIN/MAX operations across a vector: compute the min or
|
|
* max of the initial value in a general purpose register
|
|
* and all the elements in the vector, and store it back
|
|
* into the general purpose register.
|
|
*/
|
|
TCGv_ptr qm;
|
|
TCGv_i32 rda;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) || !mve_check_qreg_bank(s, a->qm) ||
|
|
!fn || a->rda == 13 || a->rda == 15) {
|
|
/* Rda cases are UNPREDICTABLE */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qm = mve_qreg_ptr(a->qm);
|
|
rda = load_reg(s, a->rda);
|
|
fn(rda, cpu_env, qm, rda);
|
|
store_reg(s, a->rda, rda);
|
|
tcg_temp_free_ptr(qm);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_VMAXV(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_vmaxv *a) \
|
|
{ \
|
|
static MVEGenVADDVFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_vmaxv(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_VMAXV(VMAXV_S, vmaxvs)
|
|
DO_VMAXV(VMAXV_U, vmaxvu)
|
|
DO_VMAXV(VMAXAV, vmaxav)
|
|
DO_VMAXV(VMINV_S, vminvs)
|
|
DO_VMAXV(VMINV_U, vminvu)
|
|
DO_VMAXV(VMINAV, vminav)
|
|
|
|
#define DO_VMAXV_FP(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_vmaxv *a) \
|
|
{ \
|
|
static MVEGenVADDVFn * const fns[] = { \
|
|
NULL, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##s, \
|
|
NULL, \
|
|
}; \
|
|
if (!dc_isar_feature(aa32_mve_fp, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_vmaxv(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_VMAXV_FP(VMAXNMV, vmaxnmv)
|
|
DO_VMAXV_FP(VMINNMV, vminnmv)
|
|
DO_VMAXV_FP(VMAXNMAV, vmaxnmav)
|
|
DO_VMAXV_FP(VMINNMAV, vminnmav)
|
|
|
|
static bool do_vabav(DisasContext *s, arg_vabav *a, MVEGenVABAVFn *fn)
|
|
{
|
|
/* Absolute difference accumulated across vector */
|
|
TCGv_ptr qn, qm;
|
|
TCGv_i32 rda;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) ||
|
|
!mve_check_qreg_bank(s, a->qm | a->qn) ||
|
|
!fn || a->rda == 13 || a->rda == 15) {
|
|
/* Rda cases are UNPREDICTABLE */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
qm = mve_qreg_ptr(a->qm);
|
|
qn = mve_qreg_ptr(a->qn);
|
|
rda = load_reg(s, a->rda);
|
|
fn(rda, cpu_env, qn, qm, rda);
|
|
store_reg(s, a->rda, rda);
|
|
tcg_temp_free_ptr(qm);
|
|
tcg_temp_free_ptr(qn);
|
|
mve_update_eci(s);
|
|
return true;
|
|
}
|
|
|
|
#define DO_VABAV(INSN, FN) \
|
|
static bool trans_##INSN(DisasContext *s, arg_vabav *a) \
|
|
{ \
|
|
static MVEGenVABAVFn * const fns[] = { \
|
|
gen_helper_mve_##FN##b, \
|
|
gen_helper_mve_##FN##h, \
|
|
gen_helper_mve_##FN##w, \
|
|
NULL, \
|
|
}; \
|
|
return do_vabav(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_VABAV(VABAV_S, vabavs)
|
|
DO_VABAV(VABAV_U, vabavu)
|
|
|
|
static bool trans_VMOV_to_2gp(DisasContext *s, arg_VMOV_to_2gp *a)
|
|
{
|
|
/*
|
|
* VMOV two 32-bit vector lanes to two general-purpose registers.
|
|
* This insn is not predicated but it is subject to beat-wise
|
|
* execution if it is not in an IT block. For us this means
|
|
* only that if PSR.ECI says we should not be executing the beat
|
|
* corresponding to the lane of the vector register being accessed
|
|
* then we should skip perfoming the move, and that we need to do
|
|
* the usual check for bad ECI state and advance of ECI state.
|
|
* (If PSR.ECI is non-zero then we cannot be in an IT block.)
|
|
*/
|
|
TCGv_i32 tmp;
|
|
int vd;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) || !mve_check_qreg_bank(s, a->qd) ||
|
|
a->rt == 13 || a->rt == 15 || a->rt2 == 13 || a->rt2 == 15 ||
|
|
a->rt == a->rt2) {
|
|
/* Rt/Rt2 cases are UNPREDICTABLE */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/* Convert Qreg index to Dreg for read_neon_element32() etc */
|
|
vd = a->qd * 2;
|
|
|
|
if (!mve_skip_vmov(s, vd, a->idx, MO_32)) {
|
|
tmp = tcg_temp_new_i32();
|
|
read_neon_element32(tmp, vd, a->idx, MO_32);
|
|
store_reg(s, a->rt, tmp);
|
|
}
|
|
if (!mve_skip_vmov(s, vd + 1, a->idx, MO_32)) {
|
|
tmp = tcg_temp_new_i32();
|
|
read_neon_element32(tmp, vd + 1, a->idx, MO_32);
|
|
store_reg(s, a->rt2, tmp);
|
|
}
|
|
|
|
mve_update_and_store_eci(s);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VMOV_from_2gp(DisasContext *s, arg_VMOV_to_2gp *a)
|
|
{
|
|
/*
|
|
* VMOV two general-purpose registers to two 32-bit vector lanes.
|
|
* This insn is not predicated but it is subject to beat-wise
|
|
* execution if it is not in an IT block. For us this means
|
|
* only that if PSR.ECI says we should not be executing the beat
|
|
* corresponding to the lane of the vector register being accessed
|
|
* then we should skip perfoming the move, and that we need to do
|
|
* the usual check for bad ECI state and advance of ECI state.
|
|
* (If PSR.ECI is non-zero then we cannot be in an IT block.)
|
|
*/
|
|
TCGv_i32 tmp;
|
|
int vd;
|
|
|
|
if (!dc_isar_feature(aa32_mve, s) || !mve_check_qreg_bank(s, a->qd) ||
|
|
a->rt == 13 || a->rt == 15 || a->rt2 == 13 || a->rt2 == 15) {
|
|
/* Rt/Rt2 cases are UNPREDICTABLE */
|
|
return false;
|
|
}
|
|
if (!mve_eci_check(s) || !vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/* Convert Qreg idx to Dreg for read_neon_element32() etc */
|
|
vd = a->qd * 2;
|
|
|
|
if (!mve_skip_vmov(s, vd, a->idx, MO_32)) {
|
|
tmp = load_reg(s, a->rt);
|
|
write_neon_element32(tmp, vd, a->idx, MO_32);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
if (!mve_skip_vmov(s, vd + 1, a->idx, MO_32)) {
|
|
tmp = load_reg(s, a->rt2);
|
|
write_neon_element32(tmp, vd + 1, a->idx, MO_32);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
|
|
mve_update_and_store_eci(s);
|
|
return true;
|
|
}
|