From 1cd012a5f720963deeaa4059c75cbdfce12fbee5 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sun, 11 Feb 2018 22:48:03 -0800 Subject: [PATCH] target/hppa: Convert indexed memory insns Tested-by: Helge Deller Tested-by: Sven Schnelle Signed-off-by: Richard Henderson --- target/hppa/insns.decode | 24 ++++++ target/hppa/translate.c | 169 +++++++++------------------------------ 2 files changed, 60 insertions(+), 133 deletions(-) diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode index a576bb1d4d..38f5fb6be2 100644 --- a/target/hppa/insns.decode +++ b/target/hppa/insns.decode @@ -26,6 +26,10 @@ %sm_imm 16:10 !function=expand_sm_imm +%im5_0 0:s1 1:4 +%im5_16 16:s1 17:4 +%ma_to_m 5:1 13:1 !function=ma_to_m + #### # Argument set definitions #### @@ -129,3 +133,23 @@ sub_tc 000010 ..... ..... .... 010011 0 ..... @rrr_cf sub_tsv_tc 000010 ..... ..... .... 110011 0 ..... @rrr_cf sub_b 000010 ..... ..... .... 010100 0 ..... @rrr_cf sub_b_tsv 000010 ..... ..... .... 110100 0 ..... @rrr_cf + +#### +# Index Mem +#### + +@ldstx ...... b:5 x:5 sp:2 scale:1 ....... m:1 t:5 &ldst disp=0 +@ldim5 ...... b:5 ..... sp:2 ......... t:5 \ + &ldst disp=%im5_16 x=0 scale=0 m=%ma_to_m +@stim5 ...... b:5 t:5 sp:2 ......... ..... \ + &ldst disp=%im5_0 x=0 scale=0 m=%ma_to_m + +ld 000011 ..... ..... .. . 1 -- 00 size:2 ...... @ldim5 +ld 000011 ..... ..... .. . 0 -- 00 size:2 ...... @ldstx +st 000011 ..... ..... .. . 1 -- 10 size:2 ...... @stim5 +ldc 000011 ..... ..... .. . 1 -- 0111 ...... @ldim5 size=2 +ldc 000011 ..... ..... .. . 0 -- 0111 ...... @ldstx size=2 +lda 000011 ..... ..... .. . 1 -- 0110 ...... @ldim5 size=2 +lda 000011 ..... ..... .. . 0 -- 0110 ...... @ldstx size=2 +sta 000011 ..... ..... .. . 1 -- 1110 ...... @stim5 size=2 +stby 000011 b:5 r:5 sp:2 a:1 1 -- 1100 m:1 ..... disp=%im5_0 diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 6c7d301904..822d93fb23 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -296,6 +296,13 @@ static int expand_sr3x(int val) return ~val; } +/* Convert the M:A bits within a memory insn to the tri-state value + we use for the final M. */ +static int ma_to_m(int val) +{ + return val & 2 ? (val & 1 ? -1 : 1) : 0; +} + /* Include the auto-generated decoder. */ #include "decode.inc.c" @@ -1562,7 +1569,7 @@ static void do_store_64(DisasContext *ctx, TCGv_i64 src, unsigned rb, #define do_store_reg do_store_32 #endif -static void do_load(DisasContext *ctx, unsigned rt, unsigned rb, +static bool do_load(DisasContext *ctx, unsigned rt, unsigned rb, unsigned rx, int scale, target_sreg disp, unsigned sp, int modify, TCGMemOp mop) { @@ -1580,7 +1587,7 @@ static void do_load(DisasContext *ctx, unsigned rt, unsigned rb, do_load_reg(ctx, dest, rb, rx, scale, disp, sp, modify, mop); save_gpr(ctx, rt, dest); - nullify_end(ctx); + return nullify_end(ctx); } static void do_floadw(DisasContext *ctx, unsigned rt, unsigned rb, @@ -1623,13 +1630,13 @@ static void do_floadd(DisasContext *ctx, unsigned rt, unsigned rb, nullify_end(ctx); } -static void do_store(DisasContext *ctx, unsigned rt, unsigned rb, +static bool do_store(DisasContext *ctx, unsigned rt, unsigned rb, target_sreg disp, unsigned sp, int modify, TCGMemOp mop) { nullify_over(ctx); do_store_reg(ctx, load_gpr(ctx, rt), rb, 0, 0, disp, sp, modify, mop); - nullify_end(ctx); + return nullify_end(ctx); } static void do_fstorew(DisasContext *ctx, unsigned rt, unsigned rb, @@ -2831,119 +2838,57 @@ static bool trans_cmpiclr(DisasContext *ctx, uint32_t insn) return nullify_end(ctx); } -static bool trans_ld_idx_i(DisasContext *ctx, uint32_t insn, - const DisasInsn *di) +static bool trans_ld(DisasContext *ctx, arg_ldst *a) { - unsigned rt = extract32(insn, 0, 5); - unsigned m = extract32(insn, 5, 1); - unsigned sz = extract32(insn, 6, 2); - unsigned a = extract32(insn, 13, 1); - unsigned sp = extract32(insn, 14, 2); - int disp = low_sextract(insn, 16, 5); - unsigned rb = extract32(insn, 21, 5); - int modify = (m ? (a ? -1 : 1) : 0); - TCGMemOp mop = MO_TE | sz; - - do_load(ctx, rt, rb, 0, 0, disp, sp, modify, mop); - return true; + return do_load(ctx, a->t, a->b, a->x, a->scale ? a->size : 0, + a->disp, a->sp, a->m, a->size | MO_TE); } -static bool trans_ld_idx_x(DisasContext *ctx, uint32_t insn, - const DisasInsn *di) +static bool trans_st(DisasContext *ctx, arg_ldst *a) { - unsigned rt = extract32(insn, 0, 5); - unsigned m = extract32(insn, 5, 1); - unsigned sz = extract32(insn, 6, 2); - unsigned u = extract32(insn, 13, 1); - unsigned sp = extract32(insn, 14, 2); - unsigned rx = extract32(insn, 16, 5); - unsigned rb = extract32(insn, 21, 5); - TCGMemOp mop = MO_TE | sz; - - do_load(ctx, rt, rb, rx, u ? sz : 0, 0, sp, m, mop); - return true; + assert(a->x == 0 && a->scale == 0); + return do_store(ctx, a->t, a->b, a->disp, a->sp, a->m, a->size | MO_TE); } -static bool trans_st_idx_i(DisasContext *ctx, uint32_t insn, - const DisasInsn *di) +static bool trans_ldc(DisasContext *ctx, arg_ldst *a) { - int disp = low_sextract(insn, 0, 5); - unsigned m = extract32(insn, 5, 1); - unsigned sz = extract32(insn, 6, 2); - unsigned a = extract32(insn, 13, 1); - unsigned sp = extract32(insn, 14, 2); - unsigned rr = extract32(insn, 16, 5); - unsigned rb = extract32(insn, 21, 5); - int modify = (m ? (a ? -1 : 1) : 0); - TCGMemOp mop = MO_TE | sz; - - do_store(ctx, rr, rb, disp, sp, modify, mop); - return true; -} - -static bool trans_ldcw(DisasContext *ctx, uint32_t insn, const DisasInsn *di) -{ - unsigned rt = extract32(insn, 0, 5); - unsigned m = extract32(insn, 5, 1); - unsigned i = extract32(insn, 12, 1); - unsigned au = extract32(insn, 13, 1); - unsigned sp = extract32(insn, 14, 2); - unsigned rx = extract32(insn, 16, 5); - unsigned rb = extract32(insn, 21, 5); - TCGMemOp mop = MO_TEUL | MO_ALIGN_16; + TCGMemOp mop = MO_TEUL | MO_ALIGN_16 | a->size; TCGv_reg zero, dest, ofs; TCGv_tl addr; - int modify, disp = 0, scale = 0; nullify_over(ctx); - if (i) { - modify = (m ? (au ? -1 : 1) : 0); - disp = low_sextract(rx, 0, 5); - rx = 0; - } else { - modify = m; - if (au) { - scale = mop & MO_SIZE; - } - } - if (modify) { + if (a->m) { /* Base register modification. Make sure if RT == RB, we see the result of the load. */ dest = get_temp(ctx); } else { - dest = dest_gpr(ctx, rt); + dest = dest_gpr(ctx, a->t); } - form_gva(ctx, &addr, &ofs, rb, rx, scale, disp, sp, modify, - ctx->mmu_idx == MMU_PHYS_IDX); + form_gva(ctx, &addr, &ofs, a->b, a->x, a->scale ? a->size : 0, + a->disp, a->sp, a->m, ctx->mmu_idx == MMU_PHYS_IDX); zero = tcg_const_reg(0); tcg_gen_atomic_xchg_reg(dest, addr, zero, ctx->mmu_idx, mop); - if (modify) { - save_gpr(ctx, rb, ofs); + if (a->m) { + save_gpr(ctx, a->b, ofs); } - save_gpr(ctx, rt, dest); + save_gpr(ctx, a->t, dest); return nullify_end(ctx); } -static bool trans_stby(DisasContext *ctx, uint32_t insn, const DisasInsn *di) +static bool trans_stby(DisasContext *ctx, arg_stby *a) { - target_sreg disp = low_sextract(insn, 0, 5); - unsigned m = extract32(insn, 5, 1); - unsigned a = extract32(insn, 13, 1); - unsigned sp = extract32(insn, 14, 2); - unsigned rt = extract32(insn, 16, 5); - unsigned rb = extract32(insn, 21, 5); TCGv_reg ofs, val; TCGv_tl addr; nullify_over(ctx); - form_gva(ctx, &addr, &ofs, rb, 0, 0, disp, sp, m, + form_gva(ctx, &addr, &ofs, a->b, 0, 0, a->disp, a->sp, a->m, ctx->mmu_idx == MMU_PHYS_IDX); - val = load_gpr(ctx, rt); - if (a) { + val = load_gpr(ctx, a->r); + if (a->a) { if (tb_cflags(ctx->base.tb) & CF_PARALLEL) { gen_helper_stby_e_parallel(cpu_env, addr, val); } else { @@ -2956,75 +2901,36 @@ static bool trans_stby(DisasContext *ctx, uint32_t insn, const DisasInsn *di) gen_helper_stby_b(cpu_env, addr, val); } } - - if (m) { + if (a->m) { tcg_gen_andi_reg(ofs, ofs, ~3); - save_gpr(ctx, rb, ofs); + save_gpr(ctx, a->b, ofs); } return nullify_end(ctx); } -#ifndef CONFIG_USER_ONLY -static bool trans_ldwa_idx_i(DisasContext *ctx, uint32_t insn, - const DisasInsn *di) +static bool trans_lda(DisasContext *ctx, arg_ldst *a) { int hold_mmu_idx = ctx->mmu_idx; CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR); - - /* ??? needs fixing for hppa64 -- ldda does not follow the same - format wrt the sub-opcode in bits 6:9. */ ctx->mmu_idx = MMU_PHYS_IDX; - trans_ld_idx_i(ctx, insn, di); + trans_ld(ctx, a); ctx->mmu_idx = hold_mmu_idx; return true; } -static bool trans_ldwa_idx_x(DisasContext *ctx, uint32_t insn, - const DisasInsn *di) +static bool trans_sta(DisasContext *ctx, arg_ldst *a) { int hold_mmu_idx = ctx->mmu_idx; CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR); - - /* ??? needs fixing for hppa64 -- ldda does not follow the same - format wrt the sub-opcode in bits 6:9. */ ctx->mmu_idx = MMU_PHYS_IDX; - trans_ld_idx_x(ctx, insn, di); + trans_st(ctx, a); ctx->mmu_idx = hold_mmu_idx; return true; } -static bool trans_stwa_idx_i(DisasContext *ctx, uint32_t insn, - const DisasInsn *di) -{ - int hold_mmu_idx = ctx->mmu_idx; - - CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR); - - /* ??? needs fixing for hppa64 -- ldda does not follow the same - format wrt the sub-opcode in bits 6:9. */ - ctx->mmu_idx = MMU_PHYS_IDX; - trans_st_idx_i(ctx, insn, di); - ctx->mmu_idx = hold_mmu_idx; - return true; -} -#endif - -static const DisasInsn table_index_mem[] = { - { 0x0c001000u, 0xfc001300, trans_ld_idx_i }, /* LD[BHWD], im */ - { 0x0c000000u, 0xfc001300, trans_ld_idx_x }, /* LD[BHWD], rx */ - { 0x0c001200u, 0xfc001300, trans_st_idx_i }, /* ST[BHWD] */ - { 0x0c0001c0u, 0xfc0003c0, trans_ldcw }, - { 0x0c001300u, 0xfc0013c0, trans_stby }, -#ifndef CONFIG_USER_ONLY - { 0x0c000180u, 0xfc00d3c0, trans_ldwa_idx_x }, /* LDWA, rx */ - { 0x0c001180u, 0xfc00d3c0, trans_ldwa_idx_i }, /* LDWA, im */ - { 0x0c001380u, 0xfc00d3c0, trans_stwa_idx_i }, /* STWA, im */ -#endif -}; - static bool trans_ldil(DisasContext *ctx, uint32_t insn) { unsigned rt = extract32(insn, 21, 5); @@ -4470,9 +4376,6 @@ static void translate_one(DisasContext *ctx, uint32_t insn) opc = extract32(insn, 26, 6); switch (opc) { - case 0x03: - translate_table(ctx, insn, table_index_mem); - return; case 0x06: trans_fmpyadd(ctx, insn, false); return;