diff options
| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-04-10 14:40:58 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-04-10 14:40:58 +0000 |
| commit | d39c0b990a243fba280eb4222daf685491431a5b (patch) | |
| tree | 7549160a27d7a9e9a00383423d4c3778a005bfc1 | |
| parent | 2b03a7a5bc4b23d912e0d8d23c8486ac8eec8a1d (diff) | |
fixed MMU bug on code page boundary
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1362 c046a42c-6fe2-441c-8c8c-71466251a162
| -rw-r--r-- | target-sparc/translate.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/target-sparc/translate.c b/target-sparc/translate.c index 543ed927b6..f93c3b1ca4 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -1395,24 +1395,24 @@ static void disas_sparc_insn(DisasContext * dc) if (!supervisor(dc)) goto priv_insn; gen_op_sta(insn, 0, 4, 0); - break; + break; case 0x15: if (!supervisor(dc)) goto priv_insn; gen_op_stba(insn, 0, 1, 0); - break; + break; case 0x16: if (!supervisor(dc)) goto priv_insn; gen_op_stha(insn, 0, 2, 0); - break; + break; case 0x17: if (!supervisor(dc)) goto priv_insn; flush_T2(dc); gen_movl_reg_T2(rd + 1); gen_op_stda(insn, 0, 8, 0); - break; + break; #endif default: case 0x0e: /* V9 stx */ @@ -1545,6 +1545,10 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb, /* if the next PC is different, we abort now */ if (dc->pc != (last_pc + 4)) break; + /* if we reach a page boundary, we stop generation so that the + PC of a TT_TFAULT exception is always in the right page */ + if ((dc->pc & (TARGET_PAGE_SIZE - 1)) == 0) + break; /* if single step mode, we generate only one instruction and generate an exception */ if (env->singlestep_enabled) { |