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target-ppc: Add is_user_mode Utility Routine 

This patch adds a boolean function is_user_mode that can be re-used
in translation code that is sensitive to the MSR[PR] (user-mode)
state.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Musta 2014-02-10 11:26:57 -06:00 committed by Alexander Graf
parent 38a853375e
commit 71a8c019c4
1 changed files with 14 additions and 0 deletions
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14
target-ppc/translate.c
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@ -622,6 +622,20 @@ static opc_handler_t invalid_handler = {
.handler = gen_invalid,
};
#if defined(TARGET_PPC64)
/* NOTE: as this time, the only use of is_user_mode() is in 64 bit code. And */
/* so the function is wrapped in the standard 64-bit ifdef in order to */
/* avoid compiler warnings in 32-bit implementations. */
static bool is_user_mode(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
return true;
#else
return ctx->mem_idx == 0;
#endif
}
#endif
/*** Integer comparison ***/
static inline void gen_op_cmp(TCGv arg0, TCGv arg1, int s, int crf)