199 lines
7.7 KiB
C
199 lines
7.7 KiB
C
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/*
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* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HEXAGON_GEN_TCG_H
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#define HEXAGON_GEN_TCG_H
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/*
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* Here is a primer to understand the tag names for load/store instructions
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*
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* Data types
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* b signed byte r0 = memb(r2+#0)
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* ub unsigned byte r0 = memub(r2+#0)
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* h signed half word (16 bits) r0 = memh(r2+#0)
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* uh unsigned half word r0 = memuh(r2+#0)
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* i integer (32 bits) r0 = memw(r2+#0)
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* d double word (64 bits) r1:0 = memd(r2+#0)
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*
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* Addressing modes
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* _io indirect with offset r0 = memw(r1+#4)
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* _ur absolute with register offset r0 = memw(r1<<#4+##variable)
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* _rr indirect with register offset r0 = memw(r1+r4<<#2)
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* gp global pointer relative r0 = memw(gp+#200)
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* _sp stack pointer relative r0 = memw(r29+#12)
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* _ap absolute set r0 = memw(r1=##variable)
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* _pr post increment register r0 = memw(r1++m1)
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* _pi post increment immediate r0 = memb(r1++#1)
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*/
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/* Macros for complex addressing modes */
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#define GET_EA_ap \
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do { \
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fEA_IMM(UiV); \
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tcg_gen_movi_tl(ReV, UiV); \
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} while (0)
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#define GET_EA_pr \
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do { \
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fEA_REG(RxV); \
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fPM_M(RxV, MuV); \
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} while (0)
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#define GET_EA_pi \
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do { \
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fEA_REG(RxV); \
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fPM_I(RxV, siV); \
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} while (0)
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/* Instructions with multiple definitions */
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#define fGEN_TCG_LOAD_AP(RES, SIZE, SIGN) \
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do { \
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fMUST_IMMEXT(UiV); \
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fEA_IMM(UiV); \
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fLOAD(1, SIZE, SIGN, EA, RES); \
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tcg_gen_movi_tl(ReV, UiV); \
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} while (0)
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#define fGEN_TCG_L4_loadrub_ap(SHORTCODE) \
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fGEN_TCG_LOAD_AP(RdV, 1, u)
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#define fGEN_TCG_L4_loadrb_ap(SHORTCODE) \
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fGEN_TCG_LOAD_AP(RdV, 1, s)
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#define fGEN_TCG_L4_loadruh_ap(SHORTCODE) \
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fGEN_TCG_LOAD_AP(RdV, 2, u)
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#define fGEN_TCG_L4_loadrh_ap(SHORTCODE) \
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fGEN_TCG_LOAD_AP(RdV, 2, s)
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#define fGEN_TCG_L4_loadri_ap(SHORTCODE) \
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fGEN_TCG_LOAD_AP(RdV, 4, u)
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#define fGEN_TCG_L4_loadrd_ap(SHORTCODE) \
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fGEN_TCG_LOAD_AP(RddV, 8, u)
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#define fGEN_TCG_L2_loadrub_pr(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadrub_pi(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadrb_pr(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadrb_pi(SHORTCODE) SHORTCODE;
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#define fGEN_TCG_L2_loadruh_pr(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadruh_pi(SHORTCODE) SHORTCODE;
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#define fGEN_TCG_L2_loadrh_pr(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadrh_pi(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadri_pr(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadri_pi(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadrd_pr(SHORTCODE) SHORTCODE
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#define fGEN_TCG_L2_loadrd_pi(SHORTCODE) SHORTCODE
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/*
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* Predicated loads
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* Here is a primer to understand the tag names
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*
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* Predicate used
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* t true "old" value if (p0) r0 = memb(r2+#0)
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* f false "old" value if (!p0) r0 = memb(r2+#0)
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* tnew true "new" value if (p0.new) r0 = memb(r2+#0)
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* fnew false "new" value if (!p0.new) r0 = memb(r2+#0)
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*/
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#define fGEN_TCG_PRED_LOAD(GET_EA, PRED, SIZE, SIGN) \
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do { \
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TCGv LSB = tcg_temp_local_new(); \
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TCGLabel *label = gen_new_label(); \
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GET_EA; \
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PRED; \
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PRED_LOAD_CANCEL(LSB, EA); \
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tcg_gen_movi_tl(RdV, 0); \
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tcg_gen_brcondi_tl(TCG_COND_EQ, LSB, 0, label); \
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fLOAD(1, SIZE, SIGN, EA, RdV); \
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gen_set_label(label); \
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tcg_temp_free(LSB); \
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} while (0)
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#define fGEN_TCG_L2_ploadrubt_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 1, u)
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#define fGEN_TCG_L2_ploadrubf_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 1, u)
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#define fGEN_TCG_L2_ploadrubtnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 1, u)
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#define fGEN_TCG_L2_ploadrubfnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 1, u)
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#define fGEN_TCG_L2_ploadrbt_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 1, s)
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#define fGEN_TCG_L2_ploadrbf_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 1, s)
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#define fGEN_TCG_L2_ploadrbtnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 1, s)
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#define fGEN_TCG_L2_ploadrbfnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD({ fEA_REG(RxV); fPM_I(RxV, siV); }, \
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fLSBNEWNOT(PtN), 1, s)
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#define fGEN_TCG_L2_ploadruht_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 2, u)
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#define fGEN_TCG_L2_ploadruhf_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 2, u)
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#define fGEN_TCG_L2_ploadruhtnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 2, u)
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#define fGEN_TCG_L2_ploadruhfnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 2, u)
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#define fGEN_TCG_L2_ploadrht_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 2, s)
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#define fGEN_TCG_L2_ploadrhf_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 2, s)
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#define fGEN_TCG_L2_ploadrhtnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 2, s)
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#define fGEN_TCG_L2_ploadrhfnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 2, s)
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#define fGEN_TCG_L2_ploadrit_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 4, u)
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#define fGEN_TCG_L2_ploadrif_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 4, u)
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#define fGEN_TCG_L2_ploadritnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 4, u)
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#define fGEN_TCG_L2_ploadrifnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 4, u)
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/* Predicated loads into a register pair */
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#define fGEN_TCG_PRED_LOAD_PAIR(GET_EA, PRED) \
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do { \
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TCGv LSB = tcg_temp_local_new(); \
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TCGLabel *label = gen_new_label(); \
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GET_EA; \
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PRED; \
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PRED_LOAD_CANCEL(LSB, EA); \
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tcg_gen_movi_i64(RddV, 0); \
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tcg_gen_brcondi_tl(TCG_COND_EQ, LSB, 0, label); \
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fLOAD(1, 8, u, EA, RddV); \
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gen_set_label(label); \
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tcg_temp_free(LSB); \
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} while (0)
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#define fGEN_TCG_L2_ploadrdt_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBOLD(PtV))
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#define fGEN_TCG_L2_ploadrdf_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBOLDNOT(PtV))
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#define fGEN_TCG_L2_ploadrdtnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBNEW(PtN))
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#define fGEN_TCG_L2_ploadrdfnew_pi(SHORTCODE) \
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fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBNEWNOT(PtN))
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/* load-locked and store-locked */
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#define fGEN_TCG_L2_loadw_locked(SHORTCODE) \
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SHORTCODE
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#define fGEN_TCG_L4_loadd_locked(SHORTCODE) \
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SHORTCODE
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#define fGEN_TCG_S2_storew_locked(SHORTCODE) \
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do { SHORTCODE; READ_PREG(PdV, PdN); } while (0)
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#define fGEN_TCG_S4_stored_locked(SHORTCODE) \
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do { SHORTCODE; READ_PREG(PdV, PdN); } while (0)
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#endif
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