/* * RISC-V translation routines for the RV64Zfh Standard Extension. * * Copyright (c) 2020 Chih-Min Chao, chihmin.chao@sifive.com * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2 or later, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see . */ #define REQUIRE_ZFH(ctx) do { \ if (!ctx->cfg_ptr->ext_zfh) { \ return false; \ } \ } while (0) #define REQUIRE_ZHINX_OR_ZFH(ctx) do { \ if (!ctx->cfg_ptr->ext_zhinx && !ctx->cfg_ptr->ext_zfh) { \ return false; \ } \ } while (0) #define REQUIRE_ZFHMIN_OR_ZFBFMIN(ctx) do { \ if (!ctx->cfg_ptr->ext_zfhmin && !ctx->cfg_ptr->ext_zfbfmin) { \ return false; \ } \ } while (0) #define REQUIRE_ZFHMIN_OR_ZHINXMIN(ctx) do { \ if (!(ctx->cfg_ptr->ext_zfhmin || ctx->cfg_ptr->ext_zhinxmin)) { \ return false; \ } \ } while (0) static bool trans_flh(DisasContext *ctx, arg_flh *a) { TCGv_i64 dest; TCGv t0; REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZFBFMIN(ctx); decode_save_opc(ctx); t0 = get_gpr(ctx, a->rs1, EXT_NONE); if (a->imm) { TCGv temp = tcg_temp_new(); tcg_gen_addi_tl(temp, t0, a->imm); t0 = temp; } dest = cpu_fpr[a->rd]; tcg_gen_qemu_ld_i64(dest, t0, ctx->mem_idx, MO_TEUW); gen_nanbox_h(dest, dest); mark_fs_dirty(ctx); return true; } static bool trans_fsh(DisasContext *ctx, arg_fsh *a) { TCGv t0; REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZFBFMIN(ctx); decode_save_opc(ctx); t0 = get_gpr(ctx, a->rs1, EXT_NONE); if (a->imm) { TCGv temp = tcg_temp_new(); tcg_gen_addi_tl(temp, t0, a->imm); t0 = temp; } tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], t0, ctx->mem_idx, MO_TEUW); return true; } static bool trans_fmadd_h(DisasContext *ctx, arg_fmadd_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); TCGv_i64 src3 = get_fpr_hs(ctx, a->rs3); gen_set_rm(ctx, a->rm); gen_helper_fmadd_h(dest, cpu_env, src1, src2, src3); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fmsub_h(DisasContext *ctx, arg_fmsub_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); TCGv_i64 src3 = get_fpr_hs(ctx, a->rs3); gen_set_rm(ctx, a->rm); gen_helper_fmsub_h(dest, cpu_env, src1, src2, src3); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fnmsub_h(DisasContext *ctx, arg_fnmsub_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); TCGv_i64 src3 = get_fpr_hs(ctx, a->rs3); gen_set_rm(ctx, a->rm); gen_helper_fnmsub_h(dest, cpu_env, src1, src2, src3); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fnmadd_h(DisasContext *ctx, arg_fnmadd_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); TCGv_i64 src3 = get_fpr_hs(ctx, a->rs3); gen_set_rm(ctx, a->rm); gen_helper_fnmadd_h(dest, cpu_env, src1, src2, src3); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fadd_h(DisasContext *ctx, arg_fadd_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_set_rm(ctx, a->rm); gen_helper_fadd_h(dest, cpu_env, src1, src2); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fsub_h(DisasContext *ctx, arg_fsub_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_set_rm(ctx, a->rm); gen_helper_fsub_h(dest, cpu_env, src1, src2); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fmul_h(DisasContext *ctx, arg_fmul_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_set_rm(ctx, a->rm); gen_helper_fmul_h(dest, cpu_env, src1, src2); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fdiv_h(DisasContext *ctx, arg_fdiv_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_set_rm(ctx, a->rm); gen_helper_fdiv_h(dest, cpu_env, src1, src2); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fsqrt_h(DisasContext *ctx, arg_fsqrt_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fsqrt_h(dest, cpu_env, src1); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fsgnj_h(DisasContext *ctx, arg_fsgnj_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); if (a->rs1 == a->rs2) { /* FMOV */ if (!ctx->cfg_ptr->ext_zfinx) { gen_check_nanbox_h(dest, src1); } else { tcg_gen_ext16s_i64(dest, src1); } } else { TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); if (!ctx->cfg_ptr->ext_zfinx) { TCGv_i64 rs1 = tcg_temp_new_i64(); TCGv_i64 rs2 = tcg_temp_new_i64(); gen_check_nanbox_h(rs1, src1); gen_check_nanbox_h(rs2, src2); /* This formulation retains the nanboxing of rs2 in normal 'Zfh'. */ tcg_gen_deposit_i64(dest, rs2, rs1, 0, 15); } else { tcg_gen_deposit_i64(dest, src2, src1, 0, 15); tcg_gen_ext16s_i64(dest, dest); } } gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fsgnjn_h(DisasContext *ctx, arg_fsgnjn_h *a) { TCGv_i64 rs1, rs2, mask; REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); rs1 = tcg_temp_new_i64(); if (!ctx->cfg_ptr->ext_zfinx) { gen_check_nanbox_h(rs1, src1); } else { tcg_gen_mov_i64(rs1, src1); } if (a->rs1 == a->rs2) { /* FNEG */ tcg_gen_xori_i64(dest, rs1, MAKE_64BIT_MASK(15, 1)); } else { TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); rs2 = tcg_temp_new_i64(); if (!ctx->cfg_ptr->ext_zfinx) { gen_check_nanbox_h(rs2, src2); } else { tcg_gen_mov_i64(rs2, src2); } /* * Replace bit 15 in rs1 with inverse in rs2. * This formulation retains the nanboxing of rs1. */ mask = tcg_constant_i64(~MAKE_64BIT_MASK(15, 1)); tcg_gen_not_i64(rs2, rs2); tcg_gen_andc_i64(rs2, rs2, mask); tcg_gen_and_i64(dest, mask, rs1); tcg_gen_or_i64(dest, dest, rs2); } /* signed-extended instead of nanboxing for result if enable zfinx */ if (ctx->cfg_ptr->ext_zfinx) { tcg_gen_ext16s_i64(dest, dest); } mark_fs_dirty(ctx); return true; } static bool trans_fsgnjx_h(DisasContext *ctx, arg_fsgnjx_h *a) { TCGv_i64 rs1, rs2; REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); rs1 = tcg_temp_new_i64(); if (!ctx->cfg_ptr->ext_zfinx) { gen_check_nanbox_h(rs1, src1); } else { tcg_gen_mov_i64(rs1, src1); } if (a->rs1 == a->rs2) { /* FABS */ tcg_gen_andi_i64(dest, rs1, ~MAKE_64BIT_MASK(15, 1)); } else { TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); rs2 = tcg_temp_new_i64(); if (!ctx->cfg_ptr->ext_zfinx) { gen_check_nanbox_h(rs2, src2); } else { tcg_gen_mov_i64(rs2, src2); } /* * Xor bit 15 in rs1 with that in rs2. * This formulation retains the nanboxing of rs1. */ tcg_gen_andi_i64(dest, rs2, MAKE_64BIT_MASK(15, 1)); tcg_gen_xor_i64(dest, rs1, dest); } /* signed-extended instead of nanboxing for result if enable zfinx */ if (ctx->cfg_ptr->ext_zfinx) { tcg_gen_ext16s_i64(dest, dest); } mark_fs_dirty(ctx); return true; } static bool trans_fmin_h(DisasContext *ctx, arg_fmin_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_helper_fmin_h(dest, cpu_env, src1, src2); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fmax_h(DisasContext *ctx, arg_fmax_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_helper_fmax_h(dest, cpu_env, src1, src2); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fcvt_s_h(DisasContext *ctx, arg_fcvt_s_h *a) { REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZHINXMIN(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_s_h(dest, cpu_env, src1); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fcvt_d_h(DisasContext *ctx, arg_fcvt_d_h *a) { REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZHINXMIN(ctx); REQUIRE_ZDINX_OR_D(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_d_h(dest, cpu_env, src1); gen_set_fpr_d(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fcvt_h_s(DisasContext *ctx, arg_fcvt_h_s *a) { REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZHINXMIN(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_h_s(dest, cpu_env, src1); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fcvt_h_d(DisasContext *ctx, arg_fcvt_h_d *a) { REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZHINXMIN(ctx); REQUIRE_ZDINX_OR_D(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_d(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_h_d(dest, cpu_env, src1); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_feq_h(DisasContext *ctx, arg_feq_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_helper_feq_h(dest, cpu_env, src1, src2); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_flt_h(DisasContext *ctx, arg_flt_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_helper_flt_h(dest, cpu_env, src1, src2); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fle_h(DisasContext *ctx, arg_fle_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); gen_helper_fle_h(dest, cpu_env, src1, src2); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fclass_h(DisasContext *ctx, arg_fclass_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_helper_fclass_h(dest, cpu_env, src1); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fcvt_w_h(DisasContext *ctx, arg_fcvt_w_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_w_h(dest, cpu_env, src1); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fcvt_wu_h(DisasContext *ctx, arg_fcvt_wu_h *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_wu_h(dest, cpu_env, src1); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fcvt_h_w(DisasContext *ctx, arg_fcvt_h_w *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv t0 = get_gpr(ctx, a->rs1, EXT_SIGN); gen_set_rm(ctx, a->rm); gen_helper_fcvt_h_w(dest, cpu_env, t0); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fcvt_h_wu(DisasContext *ctx, arg_fcvt_h_wu *a) { REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv t0 = get_gpr(ctx, a->rs1, EXT_SIGN); gen_set_rm(ctx, a->rm); gen_helper_fcvt_h_wu(dest, cpu_env, t0); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fmv_x_h(DisasContext *ctx, arg_fmv_x_h *a) { REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZFBFMIN(ctx); TCGv dest = dest_gpr(ctx, a->rd); #if defined(TARGET_RISCV64) /* 16 bits -> 64 bits */ tcg_gen_ext16s_tl(dest, cpu_fpr[a->rs1]); #else /* 16 bits -> 32 bits */ tcg_gen_extrl_i64_i32(dest, cpu_fpr[a->rs1]); tcg_gen_ext16s_tl(dest, dest); #endif gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fmv_h_x(DisasContext *ctx, arg_fmv_h_x *a) { REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZFBFMIN(ctx); TCGv t0 = get_gpr(ctx, a->rs1, EXT_ZERO); tcg_gen_extu_tl_i64(cpu_fpr[a->rd], t0); gen_nanbox_h(cpu_fpr[a->rd], cpu_fpr[a->rd]); mark_fs_dirty(ctx); return true; } static bool trans_fcvt_l_h(DisasContext *ctx, arg_fcvt_l_h *a) { REQUIRE_64BIT(ctx); REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_l_h(dest, cpu_env, src1); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fcvt_lu_h(DisasContext *ctx, arg_fcvt_lu_h *a) { REQUIRE_64BIT(ctx); REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv dest = dest_gpr(ctx, a->rd); TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); gen_set_rm(ctx, a->rm); gen_helper_fcvt_lu_h(dest, cpu_env, src1); gen_set_gpr(ctx, a->rd, dest); return true; } static bool trans_fcvt_h_l(DisasContext *ctx, arg_fcvt_h_l *a) { REQUIRE_64BIT(ctx); REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv t0 = get_gpr(ctx, a->rs1, EXT_SIGN); gen_set_rm(ctx, a->rm); gen_helper_fcvt_h_l(dest, cpu_env, t0); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; } static bool trans_fcvt_h_lu(DisasContext *ctx, arg_fcvt_h_lu *a) { REQUIRE_64BIT(ctx); REQUIRE_FPU; REQUIRE_ZHINX_OR_ZFH(ctx); TCGv_i64 dest = dest_fpr(ctx, a->rd); TCGv t0 = get_gpr(ctx, a->rs1, EXT_SIGN); gen_set_rm(ctx, a->rm); gen_helper_fcvt_h_lu(dest, cpu_env, t0); gen_set_fpr_hs(ctx, a->rd, dest); mark_fs_dirty(ctx); return true; }