Copyright ã 2005 Symbian Ltd.
47
What do all those
numbers mean?
•The processor mode or which registers are valid
Exc 1 Cpsr=20000010 FAR=0060fa6d
FSR=00000801
PC, R14..R0, CPSR
System
11111
PC, R14_und, R13_und, R12-R0, CPSR,
SPSR_und
Undef
11011
PC, R14_abt, R13_abt, R12-R0, CPSR,
SPSR_abt
Abort
10111
PC, R14_svc, R13_svc, R12-R0, CPSR,
SPSR_svc
SVC
10011
PC, R14_irq, R13_irq, R12-R0, CPSR,
SPSR_irq
IRQ
10010
PC, R14_fiq..R8_fiq, R7-R0, CPSR,
SPSR_fiq
FIQ
10001
PC, R14..R0, CPSR
User
10000
Valid set of
Registers
Mode
CPSR
(least significant 5
bits)