Thereby decoupling the resulting translated code from the current state
of the system.
Signed-off-by: Emilio G. Cota <c...@braap.org>
---
target/m68k/helper.h | 2 ++
target/m68k/op_helper.c | 32 ++++++++++++++++++++++++++++----
target/m68k/translate.c | 12 ++++++++++--
3 files changed, 40 insertions(+), 6 deletions(-)
diff --git a/target/m68k/helper.h b/target/m68k/helper.h
index 475a1f2..137ef48 100644
--- a/target/m68k/helper.h
+++ b/target/m68k/helper.h
@@ -10,7 +10,9 @@ DEF_HELPER_4(divsll, void, env, int, int, s32)
DEF_HELPER_2(set_sr, void, env, i32)
DEF_HELPER_3(movec, void, env, i32, i32)
DEF_HELPER_4(cas2w, void, env, i32, i32, i32)
+DEF_HELPER_4(cas2w_parallel, void, env, i32, i32, i32)
DEF_HELPER_4(cas2l, void, env, i32, i32, i32)
+DEF_HELPER_4(cas2l_parallel, void, env, i32, i32, i32)
#define dh_alias_fp ptr
#define dh_ctype_fp FPReg *
diff --git a/target/m68k/op_helper.c b/target/m68k/op_helper.c
index 7b5126c..061d468 100644
--- a/target/m68k/op_helper.c
+++ b/target/m68k/op_helper.c
@@ -361,7 +361,8 @@ void HELPER(divsll)(CPUM68KState *env, int numr, int regr,
int32_t den)
env->dregs[numr] = quot;
}
-void HELPER(cas2w)(CPUM68KState *env, uint32_t regs, uint32_t a1, uint32_t a2)
+static void do_cas2w(CPUM68KState *env, uint32_t regs, uint32_t a1, uint32_t
a2,
+ bool parallel)
{
uint32_t Dc1 = extract32(regs, 9, 3);
uint32_t Dc2 = extract32(regs, 6, 3);
@@ -374,7 +375,7 @@ void HELPER(cas2w)(CPUM68KState *env, uint32_t regs,
uint32_t a1, uint32_t a2)
int16_t l1, l2;
uintptr_t ra = GETPC();
- if (parallel_cpus) {
+ if (parallel) {
/* Tell the main loop we need to serialize this insn. */
cpu_loop_exit_atomic(ENV_GET_CPU(env), ra);
} else {
@@ -399,7 +400,19 @@ void HELPER(cas2w)(CPUM68KState *env, uint32_t regs,
uint32_t a1, uint32_t a2)
env->dregs[Dc2] = deposit32(env->dregs[Dc2], 0, 16, l2);
}
-void HELPER(cas2l)(CPUM68KState *env, uint32_t regs, uint32_t a1, uint32_t a2)
+void HELPER(cas2w)(CPUM68KState *env, uint32_t regs, uint32_t a1, uint32_t a2)
+{
+ do_cas2w(env, regs, a1, a2, false);
+}
+
+void HELPER(cas2w_parallel)(CPUM68KState *env, uint32_t regs, uint32_t a1,
+ uint32_t a2)
+{
+ do_cas2w(env, regs, a1, a2, true);