Address in the target code in Compiler Construction

Address in the target code in compiler design
Compiler Construction

1. —_—
ADDRESSES

ln ls top
intesme Ade

Im THE TARGET Cope

je, we Show hee names in the

code Gn be Convested into He addsesses

in the Faget codo. by Lao bing at coda genesahm

poocaduse calls and velams warf

Sec Simple
Shack ablecection -
- fi code w pastrhieneel into fur avers:
. Code : Hds execxtable td code ¿Sie of Ihe
haga cade tam be detesmined at compile me
. sume: Holds Global Constants amd ohe data
genannte Y Compiler. Size olelísmincd at
de time _
. POP: Hold date objects Hot ave alloalecl
and fed dig Pri execution . Size
„Stack et Le detesmined ad Compile hw.
Holds activecion vecards of Procadete
als and veluins Size Comme be
le ot Compile tre,
wer
Hop amd Stack both Joa Dames”

2. Static | Sack Allocation

7% Washable erde gerente Fr simpli feel
rockt calla amd veliuns one Shall focus

en the Following pace oddseés shademada :

um (ok a Fonction)
seen — (selums From a function)
. haut (hats function)

+ action (do some achm )

ae
Get

Suppose we have allowing price oddsess
code

raie € à

1

achmi
call p
action >
halt

j

PO

Í acer
vétuim

3
OO — EEE

3. Joo
120
132
mo

160

200
220

300
304

364
368

Ta addres based Faget coda will be. 3

N code Hoc wal) Fmchm

ACTION 1 U code for aetiond

ST 364, #10 À Save vet oclde M0 in loc. #44
6R 200 Wall PO

ACTION 2 ll code for actina

HALT D halls preg room
[7 code for pl) Fimchen ]

ACTIONS ll code for action3

BR «364 N veturn 4 oddvess Saved in Doc. By

Fedde 300-368 nel activation vecou Fr man
Wren eddeess
N Lot date off main
Ge. 364-451. holel activation vecocd of p
U elim odres

bel data fer p

4. Take Home Evesesse
® Generate codo for the follwing three address
e

Slot ements assuming stock allocation where

vegisoa SP points to tp of Stack ;

O ap

au y

vetusn ee

alls

velo

vel

Handels By,
M. HARON

|
| Lecturer, Dept. of Cs pir
| Univer si of Gira

hasoon. Hopujet.@ gmail. com