commit 590bc601d800d16a77676926898019f7285bd615
author Paul Brook <paul@codesourcery.com> Thu Jul 09 17:45:17 2009 +0100
committer Paul Brook <paul@codesourcery.com> Thu Jul 09 17:45:17 2009 +0100
tree 85cfd216edb9e8a3068cb4848f238e1fe4fdef58
parent ff867ddcbd55af7becd2328a454e0158018fb50e

MIPS atomic instructions

Implement MIPS ll/sc instructions using atomic compare+exchange.

Signed-off-by: Paul Brook <paul@codesourcery.com>

target-mips/cpu.h

diff --git a/target-mips/cpu.h b/target-mips/cpu.h
index 6ebb82b..bb9a49b 100644
--- a/target-mips/cpu.h
+++ b/target-mips/cpu.h
@@ -375,6 +375,9 @@
     int32_t CP0_Config7;
     /* XXX: Maybe make LLAddr per-TC? */
     target_ulong CP0_LLAddr;
+    target_ulong llval;
+    target_ulong llnewval;
+    target_ulong llreg;
     target_ulong CP0_WatchLo[8];
     int32_t CP0_WatchHi[8];
     target_ulong CP0_XContext;
@@ -559,6 +562,8 @@
 
     EXCP_LAST = EXCP_CACHE,
 };
+/* Dummy exception for conditional stores.  */
+#define EXCP_SC 0x100
 
 int cpu_mips_exec(CPUMIPSState *s);
 CPUMIPSState *cpu_mips_init(const char *cpu_model);