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target-s390: Reorg exception handling

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Make the user path more like the system path.  Prepare for more kinds
of runtime exceptions.  Rename ILC to ILEN to make it clear that we
want to pass around a full instruction length, rather than a "code"
that happens to be stored one bit left in a larger field.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-09-14 19:31:57 -07:00
parent 3fde06f5fb
commit d5a103cd6e
7 changed files with 242 additions and 261 deletions
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2
target-s390x/mem_helper.c
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@ -594,7 +594,7 @@ uint32_t HELPER(ex)(CPUS390XState *env, uint32_t cc, uint64_t v1,
HELPER_LOG("%s: svc %ld via execute\n", __func__, (insn | v1) & 0xff);
env->psw.addr = ret - 4;
env->int_svc_code = (insn | v1) & 0xff;
env->int_svc_ilc = 4;
env->int_svc_ilen = 4;
helper_exception(env, EXCP_SVC);
} else if ((insn & 0xff00) == 0xbf00) {
uint32_t insn2, r1, r3, b2, d2;