diff options
author | Richard Henderson <rth@twiddle.net> | 2012-08-22 09:49:37 -0700 |
---|---|---|
committer | Richard Henderson <rth@twiddle.net> | 2013-01-05 12:18:39 -0800 |
commit | 77f8d6c3ed89ee02847709da6508cd4dcc1d2f2d (patch) | |
tree | 4472987cefa05f7b7e626a5ee017bbe699625f84 | |
parent | a79ba3398a0aa7fdd544ce28d2950b4eeb3c16a5 (diff) |
target-s390: Convert LOAD, STORE MULTIPLE
Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r-- | target-s390x/insn-data.def | 14 | ||||
-rw-r--r-- | target-s390x/translate.c | 212 |
2 files changed, 137 insertions, 89 deletions
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def index 50a176476c..393b425f21 100644 --- a/target-s390x/insn-data.def +++ b/target-s390x/insn-data.def @@ -269,6 +269,13 @@ C(0xb900, LPGR, RRE, Z, 0, r2, r1, 0, abs, abs64) C(0xb910, LPGFR, RRE, Z, 0, r2_32s, r1, 0, abs, abs64) +/* LOAD MULTIPLE */ + C(0x9800, LM, RS_a, Z, 0, a2, 0, 0, lm32, 0) + C(0xeb98, LMY, RSY_a, LD, 0, a2, 0, 0, lm32, 0) + C(0xeb04, LMG, RSY_a, Z, 0, a2, 0, 0, lm64, 0) +/* LOAD MULTIPLE HIGH */ + C(0xeb96, LMH, RSY_a, Z, 0, a2, 0, 0, lmh, 0) + /* MOVE LONG */ C(0x0e00, MVCL, RR_a, Z, 0, 0, 0, 0, mvcl, 0) @@ -364,6 +371,13 @@ /* STORE HALFWORD RELATIVE LONG */ C(0xc407, STHRL, RIL_b, GIE, r1_o, ri2, 0, 0, st16, 0) +/* STORE MULTIPLE */ + D(0x9000, STM, RS_a, Z, 0, a2, 0, 0, stm, 0, 4) + D(0xeb90, STMY, RSY_a, LD, 0, a2, 0, 0, stm, 0, 4) + D(0xeb24, STMG, RSY_a, Z, 0, a2, 0, 0, stm, 0, 8) +/* STORE MULTIPLE HIGH */ + C(0xeb26, STMH, RSY_a, Z, 0, a2, 0, 0, stmh, 0) + /* SUBTRACT */ C(0x1b00, SR, RR_a, Z, r1, r2, new, r1_32, sub, subs32) C(0xb9f9, SRK, RRF_a, DO, r2, r3, new, r1_32, sub, subs32) diff --git a/target-s390x/translate.c b/target-s390x/translate.c index 54cd2fa1de..118f832141 100644 --- a/target-s390x/translate.c +++ b/target-s390x/translate.c @@ -273,6 +273,11 @@ static inline void store_reg32_i64(int reg, TCGv_i64 v) tcg_gen_deposit_i64(regs[reg], regs[reg], v, 0, 32); } +static inline void store_reg32h_i64(int reg, TCGv_i64 v) +{ + tcg_gen_deposit_i64(regs[reg], regs[reg], v, 32, 32); +} + static inline void store_reg16(int reg, TCGv_i32 v) { /* 16 bit register writes keep the upper bytes */ @@ -1324,65 +1329,12 @@ static void disas_e5(CPUS390XState *env, DisasContext* s, uint64_t insn) static void disas_eb(CPUS390XState *env, DisasContext *s, int op, int r1, int r3, int b2, int d2) { - TCGv_i64 tmp, tmp2, tmp3, tmp4; + TCGv_i64 tmp, tmp2; TCGv_i32 tmp32_1, tmp32_2; - int i, stm_len; LOG_DISAS("disas_eb: op 0x%x r1 %d r3 %d b2 %d d2 0x%x\n", op, r1, r3, b2, d2); switch (op) { - case 0x4: /* LMG R1,R3,D2(B2) [RSE] */ - case 0x24: /* STMG R1,R3,D2(B2) [RSE] */ - stm_len = 8; - goto do_mh; - case 0x26: /* STMH R1,R3,D2(B2) [RSE] */ - case 0x96: /* LMH R1,R3,D2(B2) [RSE] */ - stm_len = 4; -do_mh: - /* Apparently, unrolling lmg/stmg of any size gains performance - - even for very long ones... */ - tmp = get_address(s, 0, b2, d2); - tmp3 = tcg_const_i64(stm_len); - tmp4 = tcg_const_i64(op == 0x26 ? 32 : 4); - for (i = r1;; i = (i + 1) % 16) { - switch (op) { - case 0x4: - tcg_gen_qemu_ld64(regs[i], tmp, get_mem_index(s)); - break; - case 0x96: - tmp2 = tcg_temp_new_i64(); -#if HOST_LONG_BITS == 32 - tcg_gen_qemu_ld32u(tmp2, tmp, get_mem_index(s)); - tcg_gen_trunc_i64_i32(TCGV_HIGH(regs[i]), tmp2); -#else - tcg_gen_qemu_ld32u(tmp2, tmp, get_mem_index(s)); - tcg_gen_shl_i64(tmp2, tmp2, tmp4); - tcg_gen_ext32u_i64(regs[i], regs[i]); - tcg_gen_or_i64(regs[i], regs[i], tmp2); -#endif - tcg_temp_free_i64(tmp2); - break; - case 0x24: - tcg_gen_qemu_st64(regs[i], tmp, get_mem_index(s)); - break; - case 0x26: - tmp2 = tcg_temp_new_i64(); - tcg_gen_shr_i64(tmp2, regs[i], tmp4); - tcg_gen_qemu_st32(tmp2, tmp, get_mem_index(s)); - tcg_temp_free_i64(tmp2); - break; - default: - tcg_abort(); - } - if (i == r3) { - break; - } - tcg_gen_add_i64(tmp, tmp, tmp3); - } - tcg_temp_free_i64(tmp); - tcg_temp_free_i64(tmp3); - tcg_temp_free_i64(tmp4); - break; case 0x2c: /* STCMH R1,M3,D2(B2) [RSY] */ tmp = get_address(s, 0, b2, d2); tmp32_1 = tcg_const_i32(r1); @@ -2277,44 +2229,17 @@ static void disas_b9(CPUS390XState *env, DisasContext *s, int op, int r1, static void disas_s390_insn(CPUS390XState *env, DisasContext *s) { - TCGv_i64 tmp, tmp2, tmp3, tmp4; + TCGv_i64 tmp, tmp2; TCGv_i32 tmp32_1, tmp32_2; unsigned char opc; uint64_t insn; - int op, r1, r2, r3, d1, d2, x2, b1, b2, i, i2, r1b; + int op, r1, r2, r3, d1, d2, x2, b1, b2, i2, r1b; TCGv_i32 vl; opc = cpu_ldub_code(env, s->pc); LOG_DISAS("opc 0x%x\n", opc); switch (opc) { - case 0x98: /* LM R1,R3,D2(B2) [RS] */ - case 0x90: /* STM 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); - tmp2 = tcg_temp_new_i64(); - tmp3 = tcg_const_i64(4); - tmp4 = tcg_const_i64(0xffffffff00000000ULL); - for (i = r1;; i = (i + 1) % 16) { - if (opc == 0x98) { - tcg_gen_qemu_ld32u(tmp2, tmp, get_mem_index(s)); - tcg_gen_and_i64(regs[i], regs[i], tmp4); - tcg_gen_or_i64(regs[i], regs[i], tmp2); - } else { - tcg_gen_qemu_st32(regs[i], tmp, get_mem_index(s)); - } - if (i == r3) { - break; - } - tcg_gen_add_i64(tmp, tmp, tmp3); - } - tcg_temp_free_i64(tmp); - tcg_temp_free_i64(tmp2); - tcg_temp_free_i64(tmp3); - tcg_temp_free_i64(tmp4); - break; case 0x92: /* MVI D1(B1),I2 [SI] */ insn = ld_code4(env, s->pc); tmp = decode_si(s, insn, &i2, &b1, &d1); @@ -2611,19 +2536,17 @@ static void disas_s390_insn(CPUS390XState *env, DisasContext *s) d1 = (insn >> 16) & 0xfff; b2 = (insn >> 12) & 0xf; d2 = insn & 0xfff; - tmp = load_reg(r1); /* XXX key in r3 */ - tmp2 = get_address(s, 0, b1, d1); - tmp3 = get_address(s, 0, b2, d2); + tmp = get_address(s, 0, b1, d1); + tmp2 = get_address(s, 0, b2, d2); if (opc == 0xda) { - gen_helper_mvcp(cc_op, cpu_env, tmp, tmp2, tmp3); + gen_helper_mvcp(cc_op, cpu_env, regs[r1], tmp, tmp2); } else { - gen_helper_mvcs(cc_op, cpu_env, tmp, tmp2, tmp3); + gen_helper_mvcs(cc_op, cpu_env, regs[r1], tmp, tmp2); } set_cc_static(s); tcg_temp_free_i64(tmp); tcg_temp_free_i64(tmp2); - tcg_temp_free_i64(tmp3); break; #endif case 0xe3: @@ -3399,6 +3322,69 @@ static ExitStatus op_lpsw(DisasContext *s, DisasOps *o) } #endif +static ExitStatus op_lm32(DisasContext *s, DisasOps *o) +{ + int r1 = get_field(s->fields, r1); + int r3 = get_field(s->fields, r3); + TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t4 = tcg_const_i64(4); + + while (1) { + tcg_gen_qemu_ld32u(t, o->in2, get_mem_index(s)); + store_reg32_i64(r1, t); + if (r1 == r3) { + break; + } + tcg_gen_add_i64(o->in2, o->in2, t4); + r1 = (r1 + 1) & 15; + } + + tcg_temp_free_i64(t); + tcg_temp_free_i64(t4); + return NO_EXIT; +} + +static ExitStatus op_lmh(DisasContext *s, DisasOps *o) +{ + int r1 = get_field(s->fields, r1); + int r3 = get_field(s->fields, r3); + TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t4 = tcg_const_i64(4); + + while (1) { + tcg_gen_qemu_ld32u(t, o->in2, get_mem_index(s)); + store_reg32h_i64(r1, t); + if (r1 == r3) { + break; + } + tcg_gen_add_i64(o->in2, o->in2, t4); + r1 = (r1 + 1) & 15; + } + + tcg_temp_free_i64(t); + tcg_temp_free_i64(t4); + return NO_EXIT; +} + +static ExitStatus op_lm64(DisasContext *s, DisasOps *o) +{ + int r1 = get_field(s->fields, r1); + int r3 = get_field(s->fields, r3); + TCGv_i64 t8 = tcg_const_i64(8); + + while (1) { + tcg_gen_qemu_ld64(regs[r1], o->in2, get_mem_index(s)); + if (r1 == r3) { + break; + } + tcg_gen_add_i64(o->in2, o->in2, t8); + r1 = (r1 + 1) & 15; + } + + tcg_temp_free_i64(t8); + return NO_EXIT; +} + static ExitStatus op_mov2(DisasContext *s, DisasOps *o) { o->out = o->in2; @@ -3565,6 +3551,54 @@ static ExitStatus op_st64(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_stm(DisasContext *s, DisasOps *o) +{ + int r1 = get_field(s->fields, r1); + int r3 = get_field(s->fields, r3); + int size = s->insn->data; + TCGv_i64 tsize = tcg_const_i64(size); + + while (1) { + if (size == 8) { + tcg_gen_qemu_st64(regs[r1], o->in2, get_mem_index(s)); + } else { + tcg_gen_qemu_st32(regs[r1], o->in2, get_mem_index(s)); + } + if (r1 == r3) { + break; + } + tcg_gen_add_i64(o->in2, o->in2, tsize); + r1 = (r1 + 1) & 15; + } + + tcg_temp_free_i64(tsize); + return NO_EXIT; +} + +static ExitStatus op_stmh(DisasContext *s, DisasOps *o) +{ + int r1 = get_field(s->fields, r1); + int r3 = get_field(s->fields, r3); + TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t4 = tcg_const_i64(4); + TCGv_i64 t32 = tcg_const_i64(32); + + while (1) { + tcg_gen_shl_i64(t, regs[r1], t32); + tcg_gen_qemu_st32(t, o->in2, get_mem_index(s)); + if (r1 == r3) { + break; + } + tcg_gen_add_i64(o->in2, o->in2, t4); + r1 = (r1 + 1) & 15; + } + + tcg_temp_free_i64(t); + tcg_temp_free_i64(t4); + tcg_temp_free_i64(t32); + return NO_EXIT; +} + static ExitStatus op_sub(DisasContext *s, DisasOps *o) { tcg_gen_sub_i64(o->out, o->in1, o->in2); |