Remove gen_ldstub_asi.
Rename gen_ldstub_asi0 to gen_ldstub_asi.
Merge gen_ldstub into gen_ldstub_asi.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/sparc/insns.decode | 4 ++++
target/sparc/translate.c | 46 +++++++++++++++++++--------------------
2 files changed, 26 insertions(+), 24 deletions(-)
diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index 76e812cc74..818ac33f2f 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -284,6 +284,10 @@ STD 11 ..... 010111 ..... . .............
@r_r_i_asi # STDA
STX 11 ..... 011110 ..... . ............. @r_r_r_asi # STXA
STX 11 ..... 011110 ..... . ............. @r_r_i_asi # STXA
+LDSTUB 11 ..... 001101 ..... . ............. @r_r_ri_na
+LDSTUB 11 ..... 011101 ..... . ............. @r_r_r_asi # LDSTUBA
+LDSTUB 11 ..... 011101 ..... . ............. @r_r_i_asi # LDSTUBA
+
NCP 10 ----- 110110 ----- --------- ----- # v8 CPop1
NCP 10 ----- 110111 ----- --------- ----- # v8 CPop2
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index dc3586853b..70d0ed3db3 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -1891,13 +1891,6 @@ static void gen_swap(DisasContext *dc, TCGv dst, TCGv
src,
tcg_gen_atomic_xchg_tl(dst, addr, src, mmu_idx, memop | MO_ALIGN);
}
-static void gen_ldstub(DisasContext *dc, TCGv dst, TCGv addr, int mmu_idx)
-{
- TCGv m1 = tcg_constant_tl(0xff);
- gen_address_mask(dc, addr);
- tcg_gen_atomic_xchg_tl(dst, addr, m1, mmu_idx, MO_UB);
-}
-
/* asi moves */
typedef enum {
GET_ASI_HELPER,
@@ -2316,13 +2309,14 @@ gen_casx_asi(DisasContext *dc, TCGv addr, TCGv cmpv,
int insn, int rd)
gen_store_gpr(dc, rd, oldv);
}
-static void gen_ldstub_asi0(DisasContext *dc, DisasASI *da, TCGv dst, TCGv
addr)
+static void gen_ldstub_asi(DisasContext *dc, DisasASI *da, TCGv dst, TCGv addr)
{
switch (da->type) {
case GET_ASI_EXCP:
break;
case GET_ASI_DIRECT:
- gen_ldstub(dc, dst, addr, da->mem_idx);
+ tcg_gen_atomic_xchg_tl(dst, addr, tcg_constant_tl(0xff),
+ da->mem_idx, MO_UB);
break;
default:
/* ??? In theory, this should be raise DAE_invalid_asi.
@@ -2350,15 +2344,6 @@ static void gen_ldstub_asi0(DisasContext *dc, DisasASI
*da, TCGv dst, TCGv addr)
}
}
-static void __attribute__((unused))
-gen_ldstub_asi(DisasContext *dc, TCGv dst, TCGv addr, int insn)
-{
- DisasASI da = get_asi(dc, insn, MO_UB);
-
- gen_address_mask(dc, addr);
- gen_ldstub_asi0(dc, &da, dst, addr);
-}
-
static void __attribute__((unused))
gen_ldf_asi(DisasContext *dc, TCGv addr, int insn, int size, int rd)
{
@@ -4723,6 +4708,23 @@ static bool trans_STD(DisasContext *dc, arg_r_r_ri_asi
*a)
return advance_pc(dc);
}
+static bool trans_LDSTUB(DisasContext *dc, arg_r_r_ri_asi *a)
+{
+ TCGv addr, reg;
+ DisasASI da;
+
+ addr = gen_ldst_addr(dc, a->rs1, a->imm, a->rs2_or_imm);
+ if (addr == NULL) {
+ return false;
+ }
+ da = resolve_asi(dc, a->asi, MO_UB);
+
+ reg = gen_dest_gpr(dc, a->rd);
+ gen_ldstub_asi(dc, &da, reg, addr);
+ gen_store_gpr(dc, a->rd, reg);
+ return advance_pc(dc);
+}
+
#define CHECK_IU_FEATURE(dc, FEATURE) \
if (!((dc)->def->features & CPU_FEATURE_ ## FEATURE)) \
goto illegal_insn;
@@ -5551,21 +5553,20 @@ static void disas_sparc_legacy(DisasContext *dc,
unsigned int insn)
case 0x3: /* ldd, load double word */
case 0x9: /* ldsb, load signed byte */
case 0xa: /* ldsh, load signed halfword */
+ case 0xd: /* ldstub */
case 0x10: /* lda, V9 lduwa, load word alternate */
case 0x11: /* lduba, load unsigned byte alternate */
case 0x12: /* lduha, load unsigned halfword alternate */
case 0x13: /* ldda, load double word alternate */
case 0x19: /* ldsba, load signed byte alternate */
case 0x1a: /* ldsha, load signed halfword alternate */
+ case 0x1d: /* ldstuba */
g_assert_not_reached(); /* in decodetree */
case 0x08: /* V9 ldsw */
case 0x0b: /* V9 ldx */
case 0x18: /* V9 ldswa */
case 0x1b: /* V9 ldxa */
goto illegal_insn; /* in decodetree */
- case 0xd: /* ldstub */
- gen_ldstub(dc, cpu_val, cpu_addr, dc->mem_idx);
- break;
case 0x0f:
/* swap, swap register with memory. Also atomically */
cpu_src1 = gen_load_gpr(dc, rd);
@@ -5573,9 +5574,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned
int insn)
dc->mem_idx, MO_TEUL);
break;
#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)
- case 0x1d: /* ldstuba -- XXX: should be atomically */
- gen_ldstub_asi(dc, cpu_val, cpu_addr, insn);
- break;
case 0x1f: /* swapa, swap reg with alt. memory. Also
atomically */
cpu_src1 = gen_load_gpr(dc, rd);
--
2.34.1
