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-rw-r--r--target-i386/cpu.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index 0bf6f889cb..62f78798b6 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -920,7 +920,7 @@ typedef struct CPUX86State {
int error_code;
int exception_is_int;
target_ulong exception_next_eip;
- target_ulong dr[8]; /* debug registers */
+ target_ulong dr[8]; /* debug registers; note dr4 and dr5 are unused */
union {
struct CPUBreakpoint *cpu_breakpoint[4];
struct CPUWatchpoint *cpu_watchpoint[4];