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target-i386: Define DR7 bit field constants

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Implicit use of dr7 bit field is a little hard to understand,
so define constants for them and use them consistently.

Signed-off-by: liguang <lig.fnst@cn.fujitsu.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
liguang 2013-01-15 13:39:55 +08:00 • committed by Andreas Färber
parent 5ec01c2e96
commit 428065ce50
5 changed files with 23 additions and 16 deletions
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6
target-i386/cpu.h
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@ -231,6 +231,12 @@
#define DR7_TYPE_SHIFT 16
#define DR7_LEN_SHIFT 18
#define DR7_FIXED_1 0x00000400
#define DR7_LOCAL_BP_MASK 0x55
#define DR7_MAX_BP 4
#define DR7_TYPE_BP_INST 0x0
#define DR7_TYPE_DATA_WR 0x1
#define DR7_TYPE_IO_RW 0x2
#define DR7_TYPE_DATA_RW 0x3
#define PG_PRESENT_BIT 0
#define PG_RW_BIT 1