1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
.section .data
isort:
.string "isort"
qsort:
.string "qsort"
.section .text
.globl _start
_start:
cmpq $2, (%rsp) # Check if there are only two arguments
jne .algorithm_selected # If not, go to algorithm_selected
.default:
movq 16(%rsp), %rdi # Select first argument as file name
movq $0, %rsi # Select read only
movq $0, %rdx # Unused mode for read only
movq $2, %rax # Select open syscall
syscall # Open file, file descriptor returned in rax
movq %rax, %r13 # Save file descriptor in r13
jmp .select_quicksort # Select quicksort
.algorithm_selected:
movq 32(%rsp), %rdi # Select third argument as file name
movq $0, %rsi # Select read only
movq $0, %rdx # Unused mode for read only
movq $2, %rax # Select open syscall
syscall # Open file, file descriptor returned in rax
movq %rax, %r13 # Save file descriptor in r13
.check_insertion_sort:
movq 24(%rsp), %rdi # Select algorithm string
movq $isort, %rsi # Select "isort" to compare with
call strcmp # Compare
cmp $1, %rax # If the strings where equal
je .select_insertionsort # Select insertionsort
.check_quicksort:
movq 24(%rsp), %rdi # Select algorithm string
movq $qsort, %rsi # Select "qsort" to compare with
call strcmp # Compare
cmp $1, %rax # If the strings where equal
je .select_quicksort # Go to selection_done
.else_invalid_algorithm:
movq $60, %rax # Select exit syscall
movq $1, %rdi # Exit code 1
syscall # Exit
.select_insertionsort:
movq $insertion_sort, %r14 # Select insertion_sort in r14
jmp .the_rest
.select_quicksort:
movq $quick_sort, %r14 # Select quicksort in r14
jmp .the_rest
.the_rest:
# Convert to array
movq %r13, %rdi # Select file descriptor
call make_array_from_file # Convert file to array format
movq %rdx, %r15 # Save length of array in r15
# Sort
movq %rax, %rdi # Select address of array
movq %r15, %rsi # Select number of coordinates
movq $1, %rdx # Sort by key 1
call *%r14 # Sort the array
# Convert array to string
# in tsv format
movq %rax, %rdi # Select the pointer to the array
movq %r15, %rsi # Select length of array
call tub2tsv # Print array
# print string to stdout
movq %rax, %rsi
movq $1, %rax
movq $1, %rdi
syscall
# Exit
movq $60, %rax
movq $0, %rdi # Exit code 0
syscall
|