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#ifndef __DEBUGREG_H__
#define __DEBUGREG_H__
/* DR6: status flags */
#define DR6_B(bp) (1 << (bp)) /* breakpoint was triggered */
#define DR6_BD (1 << 13) /* debug register access detected */
#define DR6_BS (1 << 14) /* single step */
#define DR6_BT (1 << 15) /* task switch */
/* DR7: control flags */
#define DR7_L(bp) (1 << (2*(bp))) /* breakpoint armed locally */
#define DR7_G(bp) (1 << (1+2*(bp))) /* breakpoint armed globally */
#define DR7_LE (1 << 8) /* exact local breakpoints */
#define DR7_GE (1 << 9) /* exact global breakpoints */
#define DR7_GD (1 << 13) /* detect debug reg movs */
#define DR7_RW_MASK(bp) (3 << (16+4*(bp)))
#define DR7_RW_EXEC(bp) (0 << (16+4*(bp))) /* execute */
#define DR7_RW_WRITE(bp) (1 << (16+4*(bp))) /* write */
#define DR7_RW_IO(bp) (2 << (16+4*(bp))) /* IO */
#define DR7_RW_RW(bp) (3 << (16+4*(bp))) /* read or write */
#define DR7_LN_MASK(bp) (3 << (18+4*(bp)))
#define DR7_LN_1(bp) (0 << (18+4*(bp))) /* 1 byte */
#define DR7_LN_2(bp) (1 << (18+4*(bp))) /* 2 bytes */
#define DR7_LN_8(bp) (2 << (18+4*(bp))) /* 8 bytes */
#define DR7_LN_4(bp) (3 << (18+4*(bp))) /* 4 bytes */
/* debugreg.S */
void ld_dr0(phys_bytes value);
void ld_dr1(phys_bytes value);
void ld_dr2(phys_bytes value);
void ld_dr3(phys_bytes value);
void ld_dr6(unsigned long value);
void ld_dr7(unsigned long value);
phys_bytes st_dr0(void);
phys_bytes st_dr1(void);
phys_bytes st_dr2(void);
phys_bytes st_dr3(void);
unsigned long st_dr6(void);
unsigned long st_dr7(void);
#endif /* __DEBUGREG_H__ */
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