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Copy pathStorageManager.s
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670 lines (431 loc) · 9.16 KB
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.data
nrOp: .long 0
index_main: .long 0
Op: .long 0
nrFis: .long 0
index_citire_add_loop: .long 0
id: .long 0
dim: .long 0
blocksNec: .long 0
blocksDisp: .long 0
start: .long 0
end: .long 0
ok: .long 0
index_verificare_memorie: .long 0
v_i: .long 0
v_iplus1: .long 0
index_delete: .long 0
index_defragmentation: .long 0
ct: .long 0
aux: .space 4096
v: .space 4096
fr: .space 1024
st: .space 1024
dr: .space 1024
formatRead: .asciz "%d"
formatAfisAdd: .asciz "%d: (%d, %d)\n"
formatAfisDejaExista: .asciz "%d: (0, 0)\n";
formatAfisGet: .asciz "(%d, %d)\n"
formatAfis2: .asciz "%d "
formatNewLine: .asciz "\n"
.text
.global main
#OPERATIA ADD
et_citire_add:
#citire numar fisiere
pushl $nrFis
pushl $formatRead
call scanf
addl $8, %esp
movl $0, index_citire_add_loop
et_citire_add_loop:
movl index_citire_add_loop, %ebx
cmpl nrFis, %ebx
je et_citire_add_exit
#citire id si dimensiune
pushl $id
pushl $formatRead
call scanf
addl $8, %esp
pushl $dim
pushl $formatRead
call scanf
addl $8, %esp
#verificare_frecventa fr[id]!=0
movl id, %ecx
lea fr, %edi
movl (%edi,%ecx,4), %ebx
cmpl $0, %ebx
jne et_deja_exista
jmp verificare_memorie
et_post_verificare_memorie:
cmpl $1, ok
je et_adaugare
et_cont_citire_add_loop:
# afisare id : (start, end\n)
push end
push start
push id
push $formatAfisAdd
call printf
addl $16, %esp
pushl $0
call fflush
popl %eax
incl index_citire_add_loop
jmp et_citire_add_loop
et_citire_add_exit:
jmp cont_main_loop
et_deja_exista:
# afisare id : (0, 0\n)
push id
push $formatAfisDejaExista
call printf
addl $8, %esp
pushl $0
call fflush
popl %eax
jmp et_citire_add_exit
verificare_memorie:
#Numar de blocuri necesare = (dim+7)/8
movl $8, %ebx
movl dim, %eax
xorl %edx, %edx
addl $7, %eax
divl %ebx
movl %eax, blocksNec
#blocksDisp=0
movl $0, blocksDisp
#ok=false
movl $0, ok
movl $0, start
movl $0, end
lea v, %edi
movl $0, index_verificare_memorie
verificare_memorie_loop:
cmpl $1024, index_verificare_memorie
je verificare_memorie_exit
movl index_verificare_memorie, %ecx
movl (%edi,%ecx,4),%ebx
# if v[i]==0
cmpl $0, %ebx
je et_block_liber
jmp et_block_ocupat
et_block_liber:
cmpl $0, blocksDisp
je et_block_liber_initializare
jmp et_block_liber_incrementare
et_block_liber_initializare:
#start=i
movl index_verificare_memorie, %ebx
movl %ebx, start
#blocksDisp=1
movl $1, blocksDisp
jmp cont_block_liber
et_block_liber_incrementare:
# blocksDisp++
incl blocksDisp
jmp cont_block_liber
cont_block_liber:
# Verificam daca avem suficeiente blocuri
movl blocksNec, %ebx
cmpl blocksDisp, %ebx
je et_block_liber_exit
jmp cont_verificare_memorie_loop
et_block_liber_exit:
# ok=true
movl $1, ok
# end=start+blocksNec-1;
movl start, %ebx
addl blocksNec, %ebx
subl $1, %ebx
movl %ebx, end
jmp verificare_memorie_exit
et_block_ocupat:
# v[i]!=0
movl $0, blocksDisp
cont_verificare_memorie_loop:
incl index_verificare_memorie
jmp verificare_memorie_loop
verificare_memorie_exit:
cmpl $0, ok
je et_spatiu_insuficient
jmp et_verificare_memorie_exit
et_spatiu_insuficient:
movl $0, start
movl $0, end
jmp et_verificare_memorie_exit
et_verificare_memorie_exit:
jmp et_post_verificare_memorie
# adaugarea propriu-zisa in memomrie
et_adaugare:
movl id, %ecx
# fr[id]=dim
movl dim, %ebx
lea fr, %edi
movl %ebx, (%edi,%ecx,4)
# st[id]=start
movl start, %ebx
lea st, %edi
movl %ebx, (%edi,%ecx,4)
# dr[id]=end
movl end, %ebx
lea dr, %edi
movl %ebx, (%edi,%ecx,4)
movl start, %ecx
et_adaugare_loop:
cmpl end, %ecx
jg et_adaugare_exit
# v[i]=id
movl id, %ebx
lea v, %edi
movl %ebx, (%edi,%ecx,4)
incl %ecx
jmp et_adaugare_loop
et_adaugare_exit:
jmp et_cont_citire_add_loop
#OPERATIA GET
et_get:
# citire id
pushl $id
pushl $formatRead
call scanf
addl $8, %esp
lea dr, %edi
movl id, %ecx
movl (%edi,%ecx,4), %ebx
push %ebx
lea st, %edi
movl id, %ecx
movl (%edi,%ecx,4), %ebx
push %ebx
# afisare (st[id], dr[id])
push $formatAfisGet
call printf
addl $12, %esp
pushl $0
call fflush
popl %eax
jmp cont_main_loop
# OPERATIA DELETE
et_delete:
pushl $id
pushl $formatRead
call scanf
addl $8, %esp
# verificare_frecventa
movl id, %ecx
lea fr, %edi
movl (%edi,%ecx,4), %ebx
cmpl $0, %ebx
je et_afisare_neschimbata
# start=st[id]
lea st, %edi
movl id, %ecx
movl (%edi,%ecx,4), %ebx
movl %ebx, start
# end=dr[id]
lea dr, %edi
movl id, %ecx
movl (%edi,%ecx,4), %ebx
movl %ebx, end
movl start, %ecx
# stergerea din memorie a blocurilor
et_delete_vector_loop:
cmp end, %ecx
jg et_cont_delete
lea v, %edi
movl $0, (%edi,%ecx,4)
inc %ecx
jmp et_delete_vector_loop
et_cont_delete:
# fr[id]=0
lea fr, %edi
movl id, %ecx
movl $0, (%edi,%ecx,4)
# st[id]=0
lea st, %edi
movl id, %ecx
movl $0, (%edi,%ecx,4)
# dr[id]=0
lea dr, %edi
movl id, %ecx
movl $0, (%edi,%ecx,4)
et_afisare_neschimbata:
movl $0, index_delete
lea v, %edi
et_afisare_delete_loop:
movl index_delete, %ecx
cmpl $1024, %ecx
je et_delete_exit
lea v, %edi
movl (%edi,%ecx,4), %ebx
movl %ebx, v_i
incl %ecx
movl (%edi,%ecx,4), %ebx
movl %ebx, v_iplus1
# if v[i]!=0 && v[i]!=v[i+1]
cmpl $0, v_i
je cont_afisare_delete_loop
movl v_iplus1, %ebx
cmpl v_i, %ebx
je cont_afisare_delete_loop
movl v_i, %ecx
lea st, %edi
movl (%edi,%ecx,4), %ebx
lea dr, %edi
movl (%edi,%ecx,4), %eax
push %eax
push %ebx
push v_i
push $formatAfisAdd
call printf
addl $16, %esp
pushl $0
call fflush
popl %eax
cont_afisare_delete_loop:
incl index_delete
jmp et_afisare_delete_loop
et_delete_exit:
jmp cont_main_loop
#OPERATIA DEFRAGMENTATION
et_defragmentation:
lea aux, %edi
movl $0, %ecx
#aux=[0]*1024
et_zero_aux_loop:
cmp $1024, %ecx
je et_copiere_in_aux
movl $0, (%edi,%ecx,4)
incl %ecx
jmp et_zero_aux_loop
et_copiere_in_aux:
movl $0, %ecx
movl $0, ct
et_copiere_in_aux_loop:
cmp $1024, %ecx
je et_copiere_in_v
lea v, %edi
movl (%edi,%ecx,4), %ebx
# if v[i]!=0 adauga in aux
cmp $0, %ebx
jne et_copie
jmp cont_copiere_in_aux_loop
et_copie:
movl ct, %edx
lea aux, %edi
movl %ebx, (%edi,%edx,4)
incl ct
cont_copiere_in_aux_loop:
incl %ecx
jmp et_copiere_in_aux_loop
# v=aux
et_copiere_in_v:
movl $0, %ecx
et_copiere_in_v_loop:
cmp $1024, %ecx
je et_zero_st_dr
lea aux, %edi
movl (%edi,%ecx,4), %ebx
lea v, %edi
movl %ebx, (%edi,%ecx,4)
incl %ecx
jmp et_copiere_in_v_loop
et_zero_st_dr:
movl $0, %ecx
# st=dr=[0]*256
et_zero_st_dr_loop:
cmp $256, %ecx
je et_defragmentare
lea st, %edi
movl $0, (%edi,%ecx,4)
lea dr, %edi
movl $0, (%edi,%ecx,4)
incl %ecx
jmp et_zero_st_dr_loop
et_defragmentare:
movl $0, %ecx
et_defragmentare_loop:
cmp ct, %ecx
je et_defragmentation_exit
lea v, %edi
movl (%edi, %ecx, 4), %ebx
movl %ebx, id
movl %ecx, start
# st[id]=start
lea st, %edi
movl id, %ebx
movl start, %eax
movl %eax, (%edi, %ebx, 4)
# dim=fr[id]
lea fr, %edi
movl id, %ebx
movl (%edi,%ebx,4), %eax
movl %eax, dim
# blocksNec = (dim+7)/8
movl $8, %ebx
movl dim, %eax
xorl %edx, %edx
addl $7, %eax
divl %ebx
movl %eax, blocksNec
# end=start+blocksNec-1
movl start, %ebx
addl blocksNec, %ebx
subl $1, %ebx
movl %ebx, end
# dr[id]=end
lea dr, %edi
movl id, %ebx
movl end, %eax
movl %eax, (%edi, %ebx, 4)
push end
push start
push id
push $formatAfisAdd
call printf
addl $16, %esp
pushl $0
call fflush
popl %eax
movl end, %ecx
incl %ecx
jmp et_defragmentare_loop
et_defragmentation_exit:
jmp cont_main_loop
# MAIN
main:
# citim numarul de operatii
push $nrOp
push $formatRead
call scanf
addl $8, %esp
movl $0, index_main
main_loop:
movl nrOp, %ebx
cmpl index_main, %ebx
je et_exit
# citim operatia
push $Op
push $formatRead
call scanf
addl $8, %esp
cmpl $1, Op
je et_citire_add
cmpl $2, Op
je et_get
cmpl $3, Op
je et_delete
cmpl $4, Op
je et_defragmentation
cont_main_loop:
incl index_main
jmp main_loop
et_exit:
pushl $0
call fflush
popl %eax
movl $1, %eax
movl $0, %ebx
int $0x80