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authorPeter Crosthwaite <peter.crosthwaite@xilinx.com>2016-03-04 11:30:20 +0000
committerPeter Maydell <peter.maydell@linaro.org>2016-03-04 11:30:20 +0000
commitaa6489da4e297fb3ffcbc09b50afd700395b6386 (patch)
tree3ecca9bbd83212c81770fe09f8d1dd5a6f1a084e /target-arm
parentdacf0a2ff7d39ab12bd90f2f5496a3889facd54a (diff)
target-arm: a64: Add endianness support
Set the dc->mo_endianness flag for AA64 and use it in all ldst ops. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/translate-a64.c49
1 files changed, 30 insertions, 19 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index 88b95ab138..539e6d9c69 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -723,7 +723,7 @@ static void do_gpr_st_memidx(DisasContext *s, TCGv_i64 source,
TCGv_i64 tcg_addr, int size, int memidx)
{
g_assert(size <= 3);
- tcg_gen_qemu_st_i64(source, tcg_addr, memidx, MO_TE + size);
+ tcg_gen_qemu_st_i64(source, tcg_addr, memidx, s->be_data + size);
}
static void do_gpr_st(DisasContext *s, TCGv_i64 source,
@@ -738,7 +738,7 @@ static void do_gpr_st(DisasContext *s, TCGv_i64 source,
static void do_gpr_ld_memidx(DisasContext *s, TCGv_i64 dest, TCGv_i64 tcg_addr,
int size, bool is_signed, bool extend, int memidx)
{
- TCGMemOp memop = MO_TE + size;
+ TCGMemOp memop = s->be_data + size;
g_assert(size <= 3);
@@ -770,13 +770,18 @@ static void do_fp_st(DisasContext *s, int srcidx, TCGv_i64 tcg_addr, int size)
TCGv_i64 tmp = tcg_temp_new_i64();
tcg_gen_ld_i64(tmp, cpu_env, fp_reg_offset(s, srcidx, MO_64));
if (size < 4) {
- tcg_gen_qemu_st_i64(tmp, tcg_addr, get_mem_index(s), MO_TE + size);
+ tcg_gen_qemu_st_i64(tmp, tcg_addr, get_mem_index(s),
+ s->be_data + size);
} else {
+ bool be = s->be_data == MO_BE;
TCGv_i64 tcg_hiaddr = tcg_temp_new_i64();
- tcg_gen_qemu_st_i64(tmp, tcg_addr, get_mem_index(s), MO_TEQ);
- tcg_gen_ld_i64(tmp, cpu_env, fp_reg_hi_offset(s, srcidx));
+
tcg_gen_addi_i64(tcg_hiaddr, tcg_addr, 8);
- tcg_gen_qemu_st_i64(tmp, tcg_hiaddr, get_mem_index(s), MO_TEQ);
+ tcg_gen_qemu_st_i64(tmp, be ? tcg_hiaddr : tcg_addr, get_mem_index(s),
+ s->be_data | MO_Q);
+ tcg_gen_ld_i64(tmp, cpu_env, fp_reg_hi_offset(s, srcidx));
+ tcg_gen_qemu_st_i64(tmp, be ? tcg_addr : tcg_hiaddr, get_mem_index(s),
+ s->be_data | MO_Q);
tcg_temp_free_i64(tcg_hiaddr);
}
@@ -793,17 +798,21 @@ static void do_fp_ld(DisasContext *s, int destidx, TCGv_i64 tcg_addr, int size)
TCGv_i64 tmphi;
if (size < 4) {
- TCGMemOp memop = MO_TE + size;
+ TCGMemOp memop = s->be_data + size;
tmphi = tcg_const_i64(0);
tcg_gen_qemu_ld_i64(tmplo, tcg_addr, get_mem_index(s), memop);
} else {
+ bool be = s->be_data == MO_BE;
TCGv_i64 tcg_hiaddr;
+
tmphi = tcg_temp_new_i64();
tcg_hiaddr = tcg_temp_new_i64();
- tcg_gen_qemu_ld_i64(tmplo, tcg_addr, get_mem_index(s), MO_TEQ);
tcg_gen_addi_i64(tcg_hiaddr, tcg_addr, 8);
- tcg_gen_qemu_ld_i64(tmphi, tcg_hiaddr, get_mem_index(s), MO_TEQ);
+ tcg_gen_qemu_ld_i64(tmplo, be ? tcg_hiaddr : tcg_addr, get_mem_index(s),
+ s->be_data | MO_Q);
+ tcg_gen_qemu_ld_i64(tmphi, be ? tcg_addr : tcg_hiaddr, get_mem_index(s),
+ s->be_data | MO_Q);
tcg_temp_free_i64(tcg_hiaddr);
}
@@ -942,7 +951,7 @@ static void clear_vec_high(DisasContext *s, int rd)
static void do_vec_st(DisasContext *s, int srcidx, int element,
TCGv_i64 tcg_addr, int size)
{
- TCGMemOp memop = MO_TE + size;
+ TCGMemOp memop = s->be_data + size;
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
read_vec_element(s, tcg_tmp, srcidx, element, size);
@@ -955,7 +964,7 @@ static void do_vec_st(DisasContext *s, int srcidx, int element,
static void do_vec_ld(DisasContext *s, int destidx, int element,
TCGv_i64 tcg_addr, int size)
{
- TCGMemOp memop = MO_TE + size;
+ TCGMemOp memop = s->be_data + size;
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
tcg_gen_qemu_ld_i64(tcg_tmp, tcg_addr, get_mem_index(s), memop);
@@ -1702,7 +1711,7 @@ static void gen_load_exclusive(DisasContext *s, int rt, int rt2,
TCGv_i64 addr, int size, bool is_pair)
{
TCGv_i64 tmp = tcg_temp_new_i64();
- TCGMemOp memop = MO_TE + size;
+ TCGMemOp memop = s->be_data + size;
g_assert(size <= 3);
tcg_gen_qemu_ld_i64(tmp, addr, get_mem_index(s), memop);
@@ -1764,7 +1773,7 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
tcg_gen_brcond_i64(TCG_COND_NE, addr, cpu_exclusive_addr, fail_label);
tmp = tcg_temp_new_i64();
- tcg_gen_qemu_ld_i64(tmp, addr, get_mem_index(s), MO_TE + size);
+ tcg_gen_qemu_ld_i64(tmp, addr, get_mem_index(s), s->be_data + size);
tcg_gen_brcond_i64(TCG_COND_NE, tmp, cpu_exclusive_val, fail_label);
tcg_temp_free_i64(tmp);
@@ -1773,7 +1782,8 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
TCGv_i64 tmphi = tcg_temp_new_i64();
tcg_gen_addi_i64(addrhi, addr, 1 << size);
- tcg_gen_qemu_ld_i64(tmphi, addrhi, get_mem_index(s), MO_TE + size);
+ tcg_gen_qemu_ld_i64(tmphi, addrhi, get_mem_index(s),
+ s->be_data + size);
tcg_gen_brcond_i64(TCG_COND_NE, tmphi, cpu_exclusive_high, fail_label);
tcg_temp_free_i64(tmphi);
@@ -1781,13 +1791,14 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
}
/* We seem to still have the exclusive monitor, so do the store */
- tcg_gen_qemu_st_i64(cpu_reg(s, rt), addr, get_mem_index(s), MO_TE + size);
+ tcg_gen_qemu_st_i64(cpu_reg(s, rt), addr, get_mem_index(s),
+ s->be_data + size);
if (is_pair) {
TCGv_i64 addrhi = tcg_temp_new_i64();
tcg_gen_addi_i64(addrhi, addr, 1 << size);
tcg_gen_qemu_st_i64(cpu_reg(s, rt2), addrhi,
- get_mem_index(s), MO_TE + size);
+ get_mem_index(s), s->be_data + size);
tcg_temp_free_i64(addrhi);
}
@@ -2602,7 +2613,7 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
tcg_gen_qemu_ld_i64(tcg_tmp, tcg_addr,
- get_mem_index(s), MO_TE + scale);
+ get_mem_index(s), s->be_data + scale);
switch (scale) {
case 0:
mulconst = 0x0101010101010101ULL;
@@ -2632,9 +2643,9 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
} else {
/* Load/store one element per register */
if (is_load) {
- do_vec_ld(s, rt, index, tcg_addr, MO_TE + scale);
+ do_vec_ld(s, rt, index, tcg_addr, s->be_data + scale);
} else {
- do_vec_st(s, rt, index, tcg_addr, MO_TE + scale);
+ do_vec_st(s, rt, index, tcg_addr, s->be_data + scale);
}
}
tcg_gen_addi_i64(tcg_addr, tcg_addr, ebytes);