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target/sparc: Split out resolve_asi 

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-10-04 21:10:47 -07:00
parent 8f75b8a4eb
commit 811cc0b0ce
1 changed files with 21 additions and 4 deletions
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25
target/sparc/translate.c
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@ -1919,15 +1919,25 @@ typedef struct {
MemOp memop;
} DisasASI;
static DisasASI get_asi(DisasContext *dc, int insn, MemOp memop)
/*
* Build DisasASI.
* For asi == -1, treat as non-asi.
* For ask == -2, treat as immediate offset (v8 error, v9 %asi).
*/
static DisasASI resolve_asi(DisasContext *dc, int asi, MemOp memop)
{
int asi = GET_FIELD(insn, 19, 26);
ASIType type = GET_ASI_HELPER;
int mem_idx = dc->mem_idx;
if (asi == -1) {
/* Artificial "non-asi" case. */
type = GET_ASI_DIRECT;
goto done;
}
#ifndef TARGET_SPARC64
/* Before v9, all asis are immediate and privileged. */
if (IS_IMM) {
if (asi < 0) {
gen_exception(dc, TT_ILL_INSN);
type = GET_ASI_EXCP;
} else if (supervisor(dc)
@ -1970,7 +1980,7 @@ static DisasASI get_asi(DisasContext *dc, int insn, MemOp memop)
type = GET_ASI_EXCP;
}
#else
if (IS_IMM) {
if (asi < 0) {
asi = dc->asi;
}
/* With v9, all asis below 0x80 are privileged. */
@ -2129,9 +2139,16 @@ static DisasASI get_asi(DisasContext *dc, int insn, MemOp memop)
}
#endif
done:
return (DisasASI){ type, asi, mem_idx, memop };
}
static DisasASI get_asi(DisasContext *dc, int insn, MemOp memop)
{
int asi = IS_IMM ? -2 : GET_FIELD(insn, 19, 26);
return resolve_asi(dc, asi, memop);
}
static void gen_ld_asi(DisasContext *dc, TCGv dst, TCGv addr,
int insn, MemOp memop)
{