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target/s390x: implement MOVE LONG UNICODE

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Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170531220129.27724-23-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Aurelien Jarno 2017-06-01 00:01:21 +02:00 committed by Richard Henderson
parent 31006af3bb
commit 16f2e4b841
4 changed files with 65 additions and 6 deletions
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1
target/s390x/helper.h
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@ -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)

2
target/s390x/insn-data.def
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@ -580,6 +580,8 @@
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 */

47
target/s390x/mem_helper.c
View File

@ -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);

21
target/s390x/translate.c
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@ -3041,6 +3041,27 @@ 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)
{