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target-s390: Convert subchannel instructions 

While we're at it, list all of the chapter 14 subchannel insns.
Which is easy since all merely need indicate non-operation.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-08-27 09:36:20 -07:00
parent 5cc69c54f6
commit 2c423fc070
2 changed files with 22 additions and 10 deletions
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14
target-s390x/insn-data.def
View File

@ -680,4 +680,18 @@
C(0xad00, STOSM, SI, Z, la1, 0, 0, 0, stnosm, 0)
/* TEST PROTECTION */
C(0xe501, TPROT, SSE, Z, la1, a2, 0, 0, tprot, 0)
/* I/O Instructions. For each we simply indicate non-operation. */
C(0xb276, XSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb230, CSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb231, HSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb232, MSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb23b, RCHP, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb238, RSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb233, SSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb234, STSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
C(0xb235, TSCH, S, Z, 0, 0, 0, 0, subchannel, 0)
/* ??? Not listed in PoO ninth edition, but there's a linux driver that
uses it: "A CHSC subchannel is usually present on LPAR only." */
C(0xb25f, CHSC, S, Z, 0, 0, 0, 0, subchannel, 0)
#endif /* CONFIG_USER_ONLY */

18
target-s390x/translate.c
View File

@ -1033,11 +1033,6 @@ static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
LOG_DISAS("disas_b2: op 0x%x r1 %d r2 %d\n", op, r1, r2);
switch (op) {
case 0x34: /* STCH ? */
/* Store Subchannel */
check_privileged(s);
gen_op_movi_cc(s, 3);
break;
case 0x46: /* STURA R1,R2 [RRE] */
/* Store Using Real Address */
check_privileged(s);
@ -1062,11 +1057,6 @@ static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
tcg_temp_free_i32(tmp32_1);
tcg_temp_free_i32(tmp32_2);
break;
case 0x5f: /* CHSC ? */
/* Channel Subsystem Call */
check_privileged(s);
gen_op_movi_cc(s, 3);
break;
case 0x78: /* STCKE D2(B2) [S] */
/* Store Clock Extended */
decode_rs(s, insn, &r1, &r3, &b2, &d2);
@ -2916,6 +2906,14 @@ static ExitStatus op_spx(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
static ExitStatus op_subchannel(DisasContext *s, DisasOps *o)
{
check_privileged(s);
/* Not operational. */
gen_op_movi_cc(s, 3);
return NO_EXIT;
}
static ExitStatus op_stpx(DisasContext *s, DisasOps *o)
{
check_privileged(s);