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PDP-11
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V6
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usr
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reg.h
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1975-05-14
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274b
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17 lines
/*
* Location of the users' stored
* registers relative to R0.
* Usage is u.u_ar0[XX].
*/
#define R0 (0)
#define R1 (-2)
#define R2 (-9)
#define R3 (-8)
#define R4 (-7)
#define R5 (-6)
#define R6 (-3)
#define R7 (1)
#define RPS (2)
#define TBIT 020 /* PS trace bit */