From f3de39c485027a6b47bffb741f5209aa44052b71 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 22 Aug 2012 14:46:55 -0700 Subject: target-s390: Convert COMPARE AND SWAP Signed-off-by: Richard Henderson --- target-s390x/helper.h | 4 +-- target-s390x/insn-data.def | 9 ++++++ target-s390x/mem_helper.c | 33 +++++++++----------- target-s390x/translate.c | 78 ++++++++++++++++++++++++---------------------- 4 files changed, 66 insertions(+), 58 deletions(-) (limited to 'target-s390x') diff --git a/target-s390x/helper.h b/target-s390x/helper.h index 0bb6d57cbc..c653c1182c 100644 --- a/target-s390x/helper.h +++ b/target-s390x/helper.h @@ -18,9 +18,9 @@ DEF_HELPER_4(srst, i32, env, i32, i32, i32) DEF_HELPER_4(clst, i32, env, i32, i32, i32) DEF_HELPER_4(mvpg, void, env, i64, i64, i64) DEF_HELPER_4(mvst, void, env, i32, i32, i32) -DEF_HELPER_4(csg, i32, env, i32, i64, i32) +DEF_HELPER_4(csg, i64, env, i64, i64, i64) DEF_HELPER_4(cdsg, i32, env, i32, i64, i32) -DEF_HELPER_4(cs, i32, env, i32, i64, i32) +DEF_HELPER_4(cs, i64, env, i64, i64, i64) DEF_HELPER_5(ex, i32, env, i32, i64, i64, i64) DEF_HELPER_FLAGS_1(abs_i32, TCG_CALL_NO_RWG_SE, i32, s32) DEF_HELPER_FLAGS_1(nabs_i32, TCG_CALL_NO_RWG_SE, s32, s32) diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def index 6fff22aa5a..4714095f10 100644 --- a/target-s390x/insn-data.def +++ b/target-s390x/insn-data.def @@ -137,6 +137,15 @@ /* COMPARE LOGICAL LONG EXTENDED */ C(0xa900, CLCLE, RS_a, Z, 0, a2, 0, 0, clcle, 0) +/* COMPARE AND SWAP */ + C(0xba00, CS, RS_a, Z, r1_o, a2, new, r1_32, cs, 0) + C(0xeb14, CSY, RSY_a, LD, r1_o, a2, new, r1_32, cs, 0) + C(0xeb30, CSG, RSY_a, Z, r1_o, a2, r1, 0, csg, 0) +/* COMPARE DOUBLE AND SWAP */ + C(0xbb00, CDS, RS_a, Z, r1_D32, a2, new, r1_D32, cds, 0) + C(0xeb31, CDSY, RSY_a, LD, r1_D32, a2, new, r1_D32, cds, 0) + C(0xeb3e, CDSG, RSY_a, Z, 0, a2, 0, 0, cdsg, 0) + /* CONVERT TO DECIMAL */ C(0x4e00, CVD, RX_a, Z, r1_o, a2, 0, 0, cvd, 0) C(0xe326, CVDY, RXY_a, LD, r1_o, a2, 0, 0, cvd, 0) diff --git a/target-s390x/mem_helper.c b/target-s390x/mem_helper.c index dcaa5a59d7..44c740f1c9 100644 --- a/target-s390x/mem_helper.c +++ b/target-s390x/mem_helper.c @@ -457,20 +457,18 @@ void HELPER(mvst)(CPUS390XState *env, uint32_t c, uint32_t r1, uint32_t r2) } /* compare and swap 64-bit */ -uint32_t HELPER(csg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) +uint64_t HELPER(csg)(CPUS390XState *env, uint64_t r1, uint64_t a2, uint64_t r3) { /* FIXME: locking? */ - uint32_t cc; uint64_t v2 = cpu_ldq_data(env, a2); - - if (env->regs[r1] == v2) { - cc = 0; - cpu_stq_data(env, a2, env->regs[r3]); + if (r1 == v2) { + cpu_stq_data(env, a2, r3); + env->cc_op = 0; + return r1; } else { - cc = 1; - env->regs[r1] = v2; + env->cc_op = 1; + return v2; } - return cc; } /* compare double and swap 64-bit */ @@ -497,21 +495,18 @@ uint32_t HELPER(cdsg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) } /* compare and swap 32-bit */ -uint32_t HELPER(cs)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) +uint64_t HELPER(cs)(CPUS390XState *env, uint64_t r1, uint64_t a2, uint64_t r3) { /* FIXME: locking? */ - uint32_t cc; uint32_t v2 = cpu_ldl_data(env, a2); - - HELPER_LOG("%s: r1 %d a2 0x%lx r3 %d\n", __func__, r1, a2, r3); - if (((uint32_t)env->regs[r1]) == v2) { - cc = 0; - cpu_stl_data(env, a2, (uint32_t)env->regs[r3]); + if ((uint32_t)r1 == v2) { + cpu_stl_data(env, a2, (uint32_t)r3); + env->cc_op = 0; + return r1; } else { - cc = 1; - env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | v2; + env->cc_op = 1; + return v2; } - return cc; } static uint32_t helper_icm(CPUS390XState *env, uint32_t r1, uint64_t address, diff --git a/target-s390x/translate.c b/target-s390x/translate.c index 265fc26800..a99d3503f2 100644 --- a/target-s390x/translate.c +++ b/target-s390x/translate.c @@ -1146,30 +1146,6 @@ static void disas_eb(CPUS390XState *env, DisasContext *s, int op, int r1, tcg_temp_free_i32(tmp32_2); break; #endif - case 0x30: /* CSG R1,R3,D2(B2) [RSY] */ - tmp = get_address(s, 0, b2, d2); - tmp32_1 = tcg_const_i32(r1); - tmp32_2 = tcg_const_i32(r3); - potential_page_fault(s); - /* XXX rewrite in tcg */ - gen_helper_csg(cc_op, cpu_env, tmp32_1, tmp, tmp32_2); - set_cc_static(s); - tcg_temp_free_i64(tmp); - tcg_temp_free_i32(tmp32_1); - tcg_temp_free_i32(tmp32_2); - break; - case 0x3e: /* CDSG R1,R3,D2(B2) [RSY] */ - tmp = get_address(s, 0, b2, d2); - tmp32_1 = tcg_const_i32(r1); - tmp32_2 = tcg_const_i32(r3); - potential_page_fault(s); - /* XXX rewrite in tcg */ - gen_helper_cdsg(cc_op, cpu_env, tmp32_1, tmp, tmp32_2); - set_cc_static(s); - tcg_temp_free_i64(tmp); - tcg_temp_free_i32(tmp32_1); - tcg_temp_free_i32(tmp32_2); - break; default: LOG_DISAS("illegal eb operation 0x%x\n", op); gen_illegal_opcode(s); @@ -2021,19 +1997,6 @@ static void disas_s390_insn(CPUS390XState *env, DisasContext *s) op = (insn >> 16) & 0xff; disas_b9(env, s, op, r1, r2); break; - case 0xba: /* CS R1,R3,D2(B2) [RS] */ - insn = ld_code4(env, s->pc); - decode_rs(s, insn, &r1, &r3, &b2, &d2); - tmp = get_address(s, 0, b2, d2); - tmp32_1 = tcg_const_i32(r1); - tmp32_2 = tcg_const_i32(r3); - potential_page_fault(s); - gen_helper_cs(cc_op, cpu_env, tmp32_1, tmp, tmp32_2); - set_cc_static(s); - tcg_temp_free_i64(tmp); - tcg_temp_free_i32(tmp32_1); - tcg_temp_free_i32(tmp32_2); - break; case 0xbd: /* CLM R1,M3,D2(B2) [RS] */ insn = ld_code4(env, s->pc); decode_rs(s, insn, &r1, &r3, &b2, &d2); @@ -2665,6 +2628,47 @@ static ExitStatus op_clcle(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_cs(DisasContext *s, DisasOps *o) +{ + int r3 = get_field(s->fields, r3); + potential_page_fault(s); + gen_helper_cs(o->out, cpu_env, o->in1, o->in2, regs[r3]); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_csg(DisasContext *s, DisasOps *o) +{ + int r3 = get_field(s->fields, r3); + potential_page_fault(s); + gen_helper_csg(o->out, cpu_env, o->in1, o->in2, regs[r3]); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_cds(DisasContext *s, DisasOps *o) +{ + int r3 = get_field(s->fields, r3); + TCGv_i64 in3 = tcg_temp_new_i64(); + tcg_gen_deposit_i64(in3, regs[r3 + 1], regs[r3], 32, 32); + potential_page_fault(s); + gen_helper_csg(o->out, cpu_env, o->in1, o->in2, in3); + tcg_temp_free_i64(in3); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_cdsg(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3)); + potential_page_fault(s); + /* XXX rewrite in tcg */ + gen_helper_cdsg(cc_op, cpu_env, r1, o->in2, r3); + set_cc_static(s); + return NO_EXIT; +} + static ExitStatus op_cvd(DisasContext *s, DisasOps *o) { TCGv_i64 t1 = tcg_temp_new_i64(); -- cgit v1.2.3