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| author | Laurent Vivier <laurent@vivier.eu> | 2016-01-11 01:33:26 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2016-12-27 18:21:09 +0100 |
| commit | 14f944063affbcc7bd6df42b060793dbfee8a822 (patch) | |
| tree | 38b0f3ba0c2537980c27456db475917cf04a12b2 /target/m68k/helper.h | |
| parent | fb5543d820018a46b713911e7653594be727ca98 (diff) | |
| download | qemu-14f944063affbcc7bd6df42b060793dbfee8a822.zip | |
target-m68k: add cas/cas2 ops
Implement CAS using cmpxchg.
Implement CAS2 using helper and either cmpxchg when
the 32bit addresses are consecutive, or with
parallel_cpus+cpu_loop_exit_atomic() otherwise.
Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target/m68k/helper.h')
| -rw-r--r-- | target/m68k/helper.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target/m68k/helper.h b/target/m68k/helper.h index 6180dc5643..a6f88fca76 100644 --- a/target/m68k/helper.h +++ b/target/m68k/helper.h @@ -12,6 +12,8 @@ DEF_HELPER_3(shr_cc, i32, env, i32, i32) DEF_HELPER_3(sar_cc, i32, env, i32, i32) 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(cas2l, void, env, i32, i32, i32) DEF_HELPER_2(f64_to_i32, f32, env, f64) DEF_HELPER_2(f64_to_f32, f32, env, f64) |