Chapter 31. MSP 430 Dependent Features

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t

extra parameter saved (a constant value like frame size)

function_to_profile

a function address

cycle_corrector

a value which should be added to the cycle counter, zero if omitted.

extra

any extra parameter, zero if omitted.

For example:

.global fxx

.type fxx,@function

fxx:

.LFrameOffset_fxx=0x08

.profiler "scdP", fxx

; function entry.

; we also demand stack value to be saved

push r11

push r10

push r9

push r8

.profiler "cdpt",fxx,0, .LFrameOffset_fxx

; check stack value at this point

; (this is a prologue end)

; note, that spare var filled with

; the farme size

mov r15,r8

...

.profiler cdE,fxx

; check stack

pop r8

pop r9

pop r10

pop r11

.profiler xcde,fxx,3

; exit adds 3 to the cycle counter

ret

; cause 'ret' insn takes 3 cycles