The target endianess information is stored in the BigEndian
bit of the Config0 register in CP0.
As a first step, replace the GET_OFFSET() macro by an inlined
get_offset() function, passing CPUMIPSState as argument.
Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
target/mips/tcg/ldst_helper.c | 57 +++++++++++++++++++++--------------
1 file changed, 35 insertions(+), 22 deletions(-)
diff --git a/target/mips/tcg/ldst_helper.c b/target/mips/tcg/ldst_helper.c
index d42812b8a6a..97e7ad7d7a4 100644
--- a/target/mips/tcg/ldst_helper.c
+++ b/target/mips/tcg/ldst_helper.c
@@ -52,31 +52,44 @@ HELPER_LD_ATOMIC(lld, ldq, 0x7, (target_ulong))
#endif /* !CONFIG_USER_ONLY */
+static inline bool cpu_is_bigendian(CPUMIPSState *env)
+{
+ return extract32(env->CP0_Config0, CP0C0_BE, 1);
+}
+
#ifdef TARGET_WORDS_BIGENDIAN
#define GET_LMASK(v) ((v) & 3)
-#define GET_OFFSET(addr, offset) (addr + (offset))
#else
#define GET_LMASK(v) (((v) & 3) ^ 3)
-#define GET_OFFSET(addr, offset) (addr - (offset))
#endif
+static inline target_ulong get_offset(CPUMIPSState *env,
+ target_ulong addr, int offset)
+{
+ if (cpu_is_bigendian(env)) {
+ return addr + offset;
+ } else {
+ return addr - offset;
+ }
+}
+
void helper_swl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)(arg1 >> 24), mem_idx, GETPC());
if (GET_LMASK(arg2) <= 2) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 16),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 1), (uint8_t)(arg1 >> 16),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) <= 1) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 8),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 2), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) == 0) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 3), (uint8_t)arg1,
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 3), (uint8_t)arg1,
mem_idx, GETPC());
}
}
@@ -87,17 +100,17 @@ void helper_swr(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2,
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)arg1, mem_idx, GETPC());
if (GET_LMASK(arg2) >= 1) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -1), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) >= 2) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -2), (uint8_t)(arg1 >>
16),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) == 3) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -3), (uint8_t)(arg1 >>
24),
mem_idx, GETPC());
}
}
@@ -119,37 +132,37 @@ void helper_sdl(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2,
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)(arg1 >> 56), mem_idx, GETPC());
if (GET_LMASK64(arg2) <= 6) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 48),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 1), (uint8_t)(arg1 >> 48),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 5) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 40),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 2), (uint8_t)(arg1 >> 40),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 4) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 3), (uint8_t)(arg1 >> 32),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 3), (uint8_t)(arg1 >> 32),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 3) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 4), (uint8_t)(arg1 >> 24),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 4), (uint8_t)(arg1 >> 24),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 2) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 5), (uint8_t)(arg1 >> 16),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 5), (uint8_t)(arg1 >> 16),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 1) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 6), (uint8_t)(arg1 >> 8),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 6), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 0) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 7), (uint8_t)arg1,
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, 7), (uint8_t)arg1,
mem_idx, GETPC());
}
}
@@ -160,37 +173,37 @@ void helper_sdr(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2,
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)arg1, mem_idx, GETPC());
if (GET_LMASK64(arg2) >= 1) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -1), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 2) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -2), (uint8_t)(arg1 >>
16),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 3) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -3), (uint8_t)(arg1 >>
24),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 4) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -4), (uint8_t)(arg1 >> 32),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -4), (uint8_t)(arg1 >>
32),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 5) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -5), (uint8_t)(arg1 >> 40),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -5), (uint8_t)(arg1 >>
40),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 6) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -6), (uint8_t)(arg1 >> 48),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -6), (uint8_t)(arg1 >>
48),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) == 7) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -7), (uint8_t)(arg1 >> 56),
+ cpu_stb_mmuidx_ra(env, get_offset(env, arg2, -7), (uint8_t)(arg1 >>
56),
mem_idx, GETPC());
}
}
--
2.31.1
