[fpc-devel] arm embedded cortexm3 procedure address
mrb at periphon.net
Wed Jul 14 18:27:08 CEST 2010
disassembling from an elf file produce by FPC cross-assembling for arm
embedded, an empty procedure:-
looks like this:-
1a4: 46f7 mov pc, lr
1a6: 46c0 nop (mov r8, r8)
if I grab the address of this procedure as a constant in assembler (or
assign it to a pointer using @; same result):-
the resulting constant disassembles as:-
1bc: 000001a5 .word 0x000001a5
which seems to be one greater than the address of the procedure.
Is this right? If so, why?
also, why does the compiler sometimes add a 'nop' to the end of a
procedure (as above)?
More information about the fpc-devel