Lines Matching refs:used
3 [ an asterisk is used for planned usage which is currently unimplemented ]
7 FPU Registers must not be used in kernel mode
11 CR 0 (Recovery Counter) used for ptrace
24 CR26 (TR 2) not used
26 CR28 (TR 4) not used
27 CR29 (TR 5) not used
37 SR3 used for userspace accesses (current process)*
56 N (Nullify next instruction) used by C code
58 B (Taken Branch) used by C code
60 V (divide step correction) used by C code
62 C/B (carry/borrow bits) used by C code
69 I (external interrupt mask) used by cli()/sti() macros
75 Shadow Registers used by interruption handler code
89 r1,r2,r19-r26,r28,r29 & r31 can be used without saving them first. And of
121 used to make references to global variables easier. r30 is