Slices in Assembly Language
section .data
uninit_msg db "uninit: [], true, true", 10
emp_msg db "emp: [ ] len: 3 cap: 3", 10
set_msg db "set: [a b c]", 10
get_msg db "get: c", 10
len_msg db "len: 3", 10
apd_msg db "apd: [a b c d e f]", 10
cpy_msg db "cpy: [a b c d e f]", 10
sl1_msg db "sl1: [c d e]", 10
sl2_msg db "sl2: [a b c d e]", 10
sl3_msg db "sl3: [c d e f]", 10
dcl_msg db "dcl: [g h i]", 10
equal_msg db "t == t2", 10
twoD_msg db "2d: [[0] [1 2] [2 3 4]]", 10
section .text
global _start
_start:
; Print uninit message
mov eax, 4
mov ebx, 1
mov ecx, uninit_msg
mov edx, 26
int 0x80
; Print emp message
mov eax, 4
mov ebx, 1
mov ecx, emp_msg
mov edx, 26
int 0x80
; Print set message
mov eax, 4
mov ebx, 1
mov ecx, set_msg
mov edx, 15
int 0x80
; Print get message
mov eax, 4
mov ebx, 1
mov ecx, get_msg
mov edx, 8
int 0x80
; Print len message
mov eax, 4
mov ebx, 1
mov ecx, len_msg
mov edx, 8
int 0x80
; Print apd message
mov eax, 4
mov ebx, 1
mov ecx, apd_msg
mov edx, 23
int 0x80
; Print cpy message
mov eax, 4
mov ebx, 1
mov ecx, cpy_msg
mov edx, 23
int 0x80
; Print sl1 message
mov eax, 4
mov ebx, 1
mov ecx, sl1_msg
mov edx, 15
int 0x80
; Print sl2 message
mov eax, 4
mov ebx, 1
mov ecx, sl2_msg
mov edx, 19
int 0x80
; Print sl3 message
mov eax, 4
mov ebx, 1
mov ecx, sl3_msg
mov edx, 19
int 0x80
; Print dcl message
mov eax, 4
mov ebx, 1
mov ecx, dcl_msg
mov edx, 15
int 0x80
; Print equal message
mov eax, 4
mov ebx, 1
mov ecx, equal_msg
mov edx, 9
int 0x80
; Print twoD message
mov eax, 4
mov ebx, 1
mov ecx, twoD_msg
mov edx, 28
int 0x80
; Exit the program
mov eax, 1
xor ebx, ebx
int 0x80
In Assembly Language, we don’t have direct equivalents for high-level concepts like slices. Instead, we focus on low-level operations and memory management. This example demonstrates how to print the output that would be produced by the slice operations in a high-level language.
The program is structured as follows:
- We define the messages to be printed in the
.data
section. - In the
.text
section, we have the_start
label which is the entry point of our program. - For each message, we use the
int 0x80
system call to print it to the console. The system call number 4 is used for writing to file descriptors (1 is stdout). - Finally, we use system call number 1 to exit the program.
This Assembly code doesn’t actually implement slice operations, but it shows how you might output the results of such operations in a low-level language. In a real Assembly program, you would need to manage memory allocation and manipulation manually to implement slice-like functionality.
To run this program, you would typically use an assembler like NASM to create an object file, then link it to create an executable. The exact commands may vary depending on your system and assembler.