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X-Received-From: 2001:bc8:30d7:100::1 Subject: [Qemu-devel] [PATCH v2 22/29] target/s390x: implement MOVE LONG UNICODE X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexander Graf , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Aurelien Jarno Reviewed-by: Richard Henderson --- target/s390x/helper.h | 1 + target/s390x/insn-data.def | 2 ++ target/s390x/mem_helper.c | 47 ++++++++++++++++++++++++++++++++++++++++------ target/s390x/translate.c | 21 +++++++++++++++++++++ 4 files changed, 65 insertions(+), 6 deletions(-) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 3580c6e13d..bc6e97de1f 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -23,6 +23,7 @@ DEF_HELPER_4(ex, void, env, i32, i64, i64) DEF_HELPER_FLAGS_4(stam, TCG_CALL_NO_WG, void, env, i32, i64, i32) DEF_HELPER_FLAGS_4(lam, TCG_CALL_NO_WG, void, env, i32, i64, i32) DEF_HELPER_4(mvcle, i32, env, i32, i64, i32) +DEF_HELPER_4(mvclu, i32, env, i32, i64, i32) DEF_HELPER_4(clcle, i32, env, i32, i64, i32) DEF_HELPER_4(clclu, i32, env, i32, i64, i32) DEF_HELPER_3(cegb, i64, env, s64, i32) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index c781a97a3a..e3b7b78834 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -582,6 +582,8 @@ C(0x0e00, MVCL, RR_a, Z, 0, 0, 0, 0, mvcl, 0) /* MOVE LONG EXTENDED */ C(0xa800, MVCLE, RS_a, Z, 0, a2, 0, 0, mvcle, 0) +/* MOVE LONG UNICODE */ + C(0xeb8e, MVCLU, RSY_a, E2, 0, a2, 0, 0, mvclu, 0) /* MOVE NUMERICS */ C(0xd100, MVN, SS_a, Z, la1, a2, 0, 0, mvn, 0) /* MOVE PAGE */ diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 4857f7214e..3d97d250d7 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -606,7 +606,7 @@ void HELPER(stam)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) static inline uint32_t do_mvcl(CPUS390XState *env, uint64_t *dest, uint64_t *destlen, uint64_t *src, uint64_t *srclen, - uint8_t pad, uintptr_t ra) + uint16_t pad, int wordsize, uintptr_t ra) { uint64_t len = MIN(*srclen, *destlen); uint32_t cc; @@ -627,9 +627,22 @@ static inline uint32_t do_mvcl(CPUS390XState *env, *destlen -= len; /* Pad the remaining area */ - fast_memset(env, *dest, pad, *destlen, ra); - *dest += *destlen; - *destlen = 0; + if (wordsize == 1) { + fast_memset(env, *dest, pad, *destlen, ra); + *dest += *destlen; + *destlen = 0; + } else { + /* If remaining length is odd, pad with odd byte first. */ + if (*destlen & 1) { + cpu_stb_data_ra(env, *dest, pad & 0xff, ra); + *dest += 1; + *destlen -= 1; + } + /* The remaining length is even, pad using words. */ + for (; *destlen; *dest += 2, *destlen -= 2) { + cpu_stw_data_ra(env, *dest, pad, ra); + } + } return cc; } @@ -645,7 +658,7 @@ uint32_t HELPER(mvcl)(CPUS390XState *env, uint32_t r1, uint32_t r2) uint8_t pad = env->regs[r2 + 1] >> 24; uint32_t cc; - cc = do_mvcl(env, &dest, &destlen, &src, &srclen, pad, ra); + cc = do_mvcl(env, &dest, &destlen, &src, &srclen, pad, 1, ra); env->regs[r1 + 1] = deposit64(env->regs[r1 + 1], 0, 24, destlen); env->regs[r2 + 1] = deposit64(env->regs[r2 + 1], 0, 24, srclen); @@ -667,7 +680,29 @@ uint32_t HELPER(mvcle)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint8_t pad = a2; uint32_t cc; - cc = do_mvcl(env, &dest, &destlen, &src, &srclen, pad, ra); + cc = do_mvcl(env, &dest, &destlen, &src, &srclen, pad, 1, ra); + + set_length(env, r1 + 1, destlen); + set_length(env, r3 + 1, srclen); + set_address(env, r1, dest); + set_address(env, r3, src); + + return cc; +} + +/* move long unicode */ +uint32_t HELPER(mvclu)(CPUS390XState *env, uint32_t r1, uint64_t a2, + uint32_t r3) +{ + uintptr_t ra = GETPC(); + uint64_t destlen = get_length(env, r1 + 1); + uint64_t dest = get_address(env, r1); + uint64_t srclen = get_length(env, r3 + 1); + uint64_t src = get_address(env, r3); + uint16_t pad = a2; + uint32_t cc; + + cc = do_mvcl(env, &dest, &destlen, &src, &srclen, pad, 2, ra); set_length(env, r1 + 1, destlen); set_length(env, r3 + 1, srclen); diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 892949a05f..b160a0cad7 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -3043,6 +3043,27 @@ static ExitStatus op_mvcle(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_mvclu(DisasContext *s, DisasOps *o) +{ + int r1 = get_field(s->fields, r1); + int r3 = get_field(s->fields, r3); + TCGv_i32 t1, t3; + + /* r1 and r3 must be even. */ + if (r1 & 1 || r3 & 1) { + gen_program_exception(s, PGM_SPECIFICATION); + return EXIT_NORETURN; + } + + t1 = tcg_const_i32(r1); + t3 = tcg_const_i32(r3); + gen_helper_mvclu(cc_op, cpu_env, t1, o->in2, t3); + tcg_temp_free_i32(t1); + tcg_temp_free_i32(t3); + set_cc_static(s); + return NO_EXIT; +} + #ifndef CONFIG_USER_ONLY static ExitStatus op_mvcp(DisasContext *s, DisasOps *o) {