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path: root/target/mips/tcg/ldst_helper.c
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Diffstat (limited to 'target/mips/tcg/ldst_helper.c')
-rw-r--r--target/mips/tcg/ldst_helper.c122
1 files changed, 70 insertions, 52 deletions
diff --git a/target/mips/tcg/ldst_helper.c b/target/mips/tcg/ldst_helper.c
index d42812b8a6..d0bd0267b2 100644
--- a/target/mips/tcg/ldst_helper.c
+++ b/target/mips/tcg/ldst_helper.c
@@ -52,31 +52,45 @@ HELPER_LD_ATOMIC(lld, ldq, 0x7, (target_ulong))
#endif /* !CONFIG_USER_ONLY */
-#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 bool cpu_is_bigendian(CPUMIPSState *env)
+{
+ return extract32(env->CP0_Config0, CP0C0_BE, 1);
+}
+
+static inline target_ulong get_lmask(CPUMIPSState *env,
+ target_ulong value, unsigned bits)
+{
+ unsigned mask = (bits / BITS_PER_BYTE) - 1;
+
+ value &= mask;
+
+ if (!cpu_is_bigendian(env)) {
+ value ^= mask;
+ }
+
+ return value;
+}
void helper_swl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
+ target_ulong lmask = get_lmask(env, arg2, 32);
+ int dir = cpu_is_bigendian(env) ? 1 : -1;
+
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),
+ if (lmask <= 2) {
+ cpu_stb_mmuidx_ra(env, arg2 + 1 * dir, (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),
+ if (lmask <= 1) {
+ cpu_stb_mmuidx_ra(env, arg2 + 2 * dir, (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
- if (GET_LMASK(arg2) == 0) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 3), (uint8_t)arg1,
+ if (lmask == 0) {
+ cpu_stb_mmuidx_ra(env, arg2 + 3 * dir, (uint8_t)arg1,
mem_idx, GETPC());
}
}
@@ -84,20 +98,23 @@ void helper_swl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
void helper_swr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
+ target_ulong lmask = get_lmask(env, arg2, 32);
+ int dir = cpu_is_bigendian(env) ? 1 : -1;
+
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),
+ if (lmask >= 1) {
+ cpu_stb_mmuidx_ra(env, arg2 - 1 * dir, (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),
+ if (lmask >= 2) {
+ cpu_stb_mmuidx_ra(env, arg2 - 2 * dir, (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),
+ if (lmask == 3) {
+ cpu_stb_mmuidx_ra(env, arg2 - 3 * dir, (uint8_t)(arg1 >> 24),
mem_idx, GETPC());
}
}
@@ -107,49 +124,47 @@ void helper_swr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
* "half" load and stores. We must do the memory access inline,
* or fault handling won't work.
*/
-#ifdef TARGET_WORDS_BIGENDIAN
-#define GET_LMASK64(v) ((v) & 7)
-#else
-#define GET_LMASK64(v) (((v) & 7) ^ 7)
-#endif
void helper_sdl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
+ target_ulong lmask = get_lmask(env, arg2, 64);
+ int dir = cpu_is_bigendian(env) ? 1 : -1;
+
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),
+ if (lmask <= 6) {
+ cpu_stb_mmuidx_ra(env, arg2 + 1 * dir, (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),
+ if (lmask <= 5) {
+ cpu_stb_mmuidx_ra(env, arg2 + 2 * dir, (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),
+ if (lmask <= 4) {
+ cpu_stb_mmuidx_ra(env, arg2 + 3 * dir, (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),
+ if (lmask <= 3) {
+ cpu_stb_mmuidx_ra(env, arg2 + 4 * dir, (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),
+ if (lmask <= 2) {
+ cpu_stb_mmuidx_ra(env, arg2 + 5 * dir, (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),
+ if (lmask <= 1) {
+ cpu_stb_mmuidx_ra(env, arg2 + 6 * dir, (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
- if (GET_LMASK64(arg2) <= 0) {
- cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 7), (uint8_t)arg1,
+ if (lmask <= 0) {
+ cpu_stb_mmuidx_ra(env, arg2 + 7 * dir, (uint8_t)arg1,
mem_idx, GETPC());
}
}
@@ -157,40 +172,43 @@ void helper_sdl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
void helper_sdr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
+ target_ulong lmask = get_lmask(env, arg2, 64);
+ int dir = cpu_is_bigendian(env) ? 1 : -1;
+
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),
+ if (lmask >= 1) {
+ cpu_stb_mmuidx_ra(env, arg2 - 1 * dir, (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),
+ if (lmask >= 2) {
+ cpu_stb_mmuidx_ra(env, arg2 - 2 * dir, (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),
+ if (lmask >= 3) {
+ cpu_stb_mmuidx_ra(env, arg2 - 3 * dir, (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),
+ if (lmask >= 4) {
+ cpu_stb_mmuidx_ra(env, arg2 - 4 * dir, (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),
+ if (lmask >= 5) {
+ cpu_stb_mmuidx_ra(env, arg2 - 5 * dir, (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),
+ if (lmask >= 6) {
+ cpu_stb_mmuidx_ra(env, arg2 - 6 * dir, (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),
+ if (lmask == 7) {
+ cpu_stb_mmuidx_ra(env, arg2 - 7 * dir, (uint8_t)(arg1 >> 56),
mem_idx, GETPC());
}
}
generated by cgit v1.2.3 (git 2.26.2) at 2025-01-02 15:43:21 +0000