Lines Matching refs:used
5 [ an asterisk is used for planned usage which is currently unimplemented ]
14 CR 0 (Recovery Counter) used for ptrace
31 CR26 (TR 2) not used
33 CR28 (TR 4) not used
34 CR29 (TR 5) not used
36 CR31 (TR 7) Temporary register, used in various places
47 SR3 used for userspace accesses (current process)
72 N (Nullify next instruction) used by C code
74 B (Taken Branch) used by C code
76 V (divide step correction) used by C code
78 C/B (carry/borrow bits) used by C code
85 I (external interrupt mask) used by cli()/sti() macros
94 Shadow Registers used by interruption handler code
101 Those are used in RETURN FROM INTERRUPTION AND RESTORE instruction to reduce
113 r1,r2,r19-r26,r28,r29 & r31 can be used without saving them first. And of
142 r29 may also be used to pass data back to the caller.
153 used to make references to global variables easier. r30 is