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CRIS: Support RFN insn. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4718 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
edgar_igl 2008-06-09 23:07:50 +00:00
parent a7cfbba0cf
commit 5bf8f1aba1
2 changed files with 20 additions and 0 deletions
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1
target-cris/helper.h
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@ -5,6 +5,7 @@ void TCG_HELPER_PROTO helper_tlb_flush_pid(uint32_t pid);
void TCG_HELPER_PROTO helper_dump(uint32_t a0, uint32_t a1, uint32_t a2);
void TCG_HELPER_PROTO helper_dummy(void);
void TCG_HELPER_PROTO helper_rfe(void);
void TCG_HELPER_PROTO helper_rfn(void);
void TCG_HELPER_PROTO helper_store(uint32_t a0);
void TCG_HELPER_PROTO helper_movl_sreg_reg (uint32_t sreg, uint32_t reg);

19
target-cris/op_helper.c
View File

@ -220,6 +220,25 @@ void helper_rfe(void)
env->pregs[PR_CCS] |= P_FLAG;
}
void helper_rfn(void)
{
int rflag = env->pregs[PR_CCS] & R_FLAG;
D(fprintf(logfile, "rfn: erp=%x pid=%x ccs=%x btarget=%x\n",
env->pregs[PR_ERP], env->pregs[PR_PID],
env->pregs[PR_CCS],
env->btarget));
cris_ccs_rshift(env);
/* Set the P_FLAG only if the R_FLAG is not set. */
if (!rflag)
env->pregs[PR_CCS] |= P_FLAG;
/* Always set the M flag. */
env->pregs[PR_CCS] |= M_FLAG;
}
void helper_store(uint32_t a0)
{
if (env->pregs[PR_CCS] & P_FLAG )